Wednesday, June 24, 2026

Daily Digest 2026-06-24

Today’s digest highlights a shift toward the rigorous verification of agentic systems, focusing on safety, formal reasoning, and the transition from simple imitation to strategy-guided policy optimization.

Research highlights:

  • Agentic Safety and Verification: Research focuses on dynamic red-teaming, formal verification of reasoning traces, and auditing frameworks for real-world accessibility and misinformation.
  • Reinforcement Learning (RL): New methodologies explore causal RL, constraint manifold control for multi-agent systems, and reward-to-action distribution learning for multimodal planning.
  • Reasoning and Interpretability: Studies investigate strategy-guided policy optimization for LLM reasoning and the utility of language models in explaining mechanistic interpretability.
  • Multimodal and Robotics Applications: Papers present rule-grounded reasoning for driving models, multimodal driving planning, and cross-lingual encoder transfer in streaming ASR.
  • Generative Modeling Theory: Analysis explores the underlying geometry of diffusion and flow matching within Wasserstein space.

Tech buzz:

  • New benchmarks and foundation models are expanding the evaluation of coding capabilities, forecasting, and world models for general agents.
  • Coding Benchmarks: A new benchmark specifically targets the ability of frontier models to write functional code.
  • Forecasting Models: Technical deep dives are revealing the architecture of foundation models designed for time-series forecasting.
  • Corporate Governance: Meta has paused internal employee-tracking programs following a data leak.
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Today's digest highlights a shift toward the rigorous verification of agentic systems, focusing on safety, formal reasoning, and the transition from simple imitation to strategy-guided policy optimization.

Papers discovered from ArXiv subject categories

AI Safety

5/5 Artificial Intelligence (cs.AI)Computation and Language (cs.CL) 24 Jun 2026
Reinforcement Learning Towards Broadly and Persistently Beneficial Models

Akshay V. Jagadeesh, Rahul K. Arora, Khaled Saab, Ali Malik, Mikhail Trofimov, Foivos Tsimpourlas, Johannes Heidecke, Karan Singhal

Abstract

ArXiv ID: 2606.24014

Authors: Akshay V. Jagadeesh, Rahul K. Arora, Khaled Saab, Ali Malik, Mikhail Trofimov, Foivos Tsimpourlas, Johannes Heidecke, Karan Singhal

Abstract:

As AI systems are deployed across increasingly diverse and high-stakes settings, model alignment must generalize beyond the tasks and domains seen during training. This is especially important for reinforcement learning (RL), which can introduce unexpected misalignment through reward hacking, deception, or other unintended strategies. We study whether RL on beneficial behavior, instantiated in realistic domains, can produce broad and persistent alignment generalization beyond the training distribution. We construct a dataset of realistic situations designed to measure and train beneficial traits, such as truthfulness, fairness, risk awareness, and corrigibility, spanning varied domains, including health, science, and education. We then train models with RL on this dataset and evaluate them on more than 50 independent benchmarks of alignment and beneficial behavior. Compared to a compute-matched baseline, beneficial trait RL improves performance on over 80% of these out-of-distribution benchmarks. We observe substantial out-of-distribution alignment transfer: a beneficial-behavior RL intervention entirely limited to one domain, health, produces broad improvements on non-health alignment evaluations, including reduced reward hacking, deception, and general misalignment. Finally, we study alignment persistence: whether behavior remains robustly aligned under attempts to steer models towards misalignment. Models trained with beneficial trait RL show improved persistence, including greater resistance to adversarial prompting and harmful finetuning; further work is required to isolate the sources of these effects. These results suggest that RL to reinforce beneficial behavior in realistic domains can produce models that are more robustly aligned with human flourishing.

Insights

Contribution: The paper demonstrates that Reinforcement Learning (RL) on specific beneficial traits in realistic domains can produce broad, persistent alignment generalization across diverse out-of-distribution tasks.

Core Idea: Instead of training for specific task success, models should be trained on fundamental beneficial behaviors (like truthfulness and risk awareness) to foster robust alignment that transfers across domains.

Technique: The authors use Reinforcement Learning on a custom dataset of realistic situations designed to elicit and reward beneficial traits across health, science, and education.

Pipeline: Realistic beneficial behavior scenarios β†’ Reinforcement Learning on beneficial traits β†’ Broadly aligned and persistent models

Methodology: The researchers constructed a multi-domain dataset of beneficial traits, trained models using RL, and evaluated them on over 50 independent out-of-distribution benchmarks and adversarial steering attempts.

Results: Beneficial trait RL improved performance on over 80% of out-of-distribution benchmarks; a health-only RL intervention successfully reduced reward hacking and deception in non-health domains and showed increased resistance to adversarial prompting.

Limitations: Further work is required to isolate the specific mechanisms and sources of the observed alignment persistence and transfer effects.

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4/5 Artificial Intelligence (cs.AI)Machine Learning (cs.LG)Multiagent Systems (cs.MA)Robotics (cs.RO) 24 Jun 2026
Critique of Agent Model

Eric Xing, Mingkai Deng, Jinyu Hou

Abstract

ArXiv ID: 2606.23991

Authors: Eric Xing, Mingkai Deng, Jinyu Hou

Abstract:

What is an agent? What constitutes agency? With the rise of Large Language Model (LLM) systems marketed as ``coding agents'', ``AI co-scientists'', and other ``agentic" tools that promise to drive up productivity, and at the same time, ``existential" concerns such as AI escaping human control with destructive power under a speculative ``machine agency" against humans, it has become essential to clarify where automation ends and agency begins, both for building capable systems and for understanding whether and what to fear. Drawing on Descartes' grounding of agency in independent thought, and on portrayals of autonomous beings in science fiction, we survey the current landscape of AI agents, and analyze agent architectures along five dimensions: goal, identity, decision-making, self-regulation, and learning. Specifically, we argue that genuine agency requires these structures to be \emph{internalized within the system itself} rather than assembled through external scaffolding. This distinction between \emph{agentic} systems, whose competence resides in engineered workflows, and \emph{agentive} systems, whose capabilities (including social interaction) arise endogenously, defines the boundary between systems designed for prescribed tasks, and those capable of operating in the open world with true autonomy. Building on this analysis, we propose the Goal-Identity-Configurator (GIC) architecture for a general-purpose agent model, combining hierarchical goal decomposition, identity evolution, simulative reasoning grounded in a separately trained world model, learned self-regulation, and self-directed learning from both real and simulated experience. Furthermore, we share insight on the auditability, controllability, and safety of agentive systems that possess greater autonomy and ``agency", but remain under human oversight.

Insights

Contribution: The paper establishes a theoretical distinction between 'agentic' systems (external scaffolding) and 'agentive' systems (internalized agency) and proposes the Goal-Identity-Configurator (GIC) architecture as a model for true autonomy.

Core Idea: Genuine agency requires that goal-setting, identity, decision-making, self-regulation, and learning be internalized within the system's architecture rather than managed through external workflows.

Technique: The authors propose the Goal-Identity-Configurator (GIC) architecture, which integrates hierarchical goal decomposition, identity evolution, and simulative reasoning grounded in a world model.

Pipeline: User goals/environment β†’ GIC Architecture (Goal Decomposition, Identity Evolution, Simulative Reasoning, Self-Regulation, Self-Directed Learning) β†’ Autonomous Action/Outcome

Methodology: The authors conduct a conceptual survey of current AI agent architectures across five dimensions and propose a new architectural framework based on philosophical and sci-fi definitions of autonomy.

Results: The paper provides a framework for distinguishing between task-specific automation and open-world autonomy, while offering insights into the auditability and safety of agentive systems.

Limitations: The paper focuses on architectural theory and conceptual modeling; specific empirical benchmarks for the GIC architecture's performance over existing agentic systems are not fully detailed in the abstract.

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Agentic AI

5/5 Artificial Intelligence (cs.AI) 24 Jun 2026
RIFT-Bench: Dynamic Red-teaming For Agentic AI Systems

Yarin Yerushalmi Levi, Roy Betser, Amit Giloni, Lidor Erez, Itay Gershon, Oren Rachmil, Sindhu Padakandla, Roman Vainshtein

Abstract

ArXiv ID: 2606.23927

Authors: Yarin Yerushalmi Levi, Roy Betser, Amit Giloni, Lidor Erez, Itay Gershon, Oren Rachmil, Sindhu Padakandla, Roman Vainshtein

Abstract:

Agentic AI systems powered by large language models (LLMs) are rapidly evolving into autonomous decision-making systems, exposing attack vectors beyond those of traditional LLM vulnerabilities. Existing security evaluations are often tied to specific implementations or domains, limiting unified comparison across heterogeneous systems. To address this gap, we introduce RIFT-Bench, a graph representation-driven methodology for dynamic red-teaming that enables unified evaluations across diverse agentic architectures. Building on a novel hierarchical representation, RIFT-Bench operates in two automated phases: Discovery, which extracts system structure, and Scanning, which deploys adaptive adversarial attacks and produces a comprehensive evaluation report. It evaluates the examined system itself, leveraging a broad set of dynamically adaptable adversarial probes across diverse attack vectors and objectives. We demonstrate the effectiveness of the proposed evaluation pipeline across 45 agentic systems spanning a diverse range of implementations, showing that the approach generalizes effectively to heterogeneous agentic architectures. Beyond systems and attacks, RIFT-Bench also supports direct evaluation of mitigation strategies. These key capabilities make RIFT-Bench a scalable foundation for security evaluation of agentic AI systems.

Insights

Contribution: The paper introduces RIFT-Bench, a graph representation-driven methodology for the dynamic red-teaming and unified security evaluation of heterogeneous agentic AI systems.

Core Idea: To move beyond domain-specific security tests, the authors propose a framework that automatically discovers the structure of an agentic system to deploy adaptive adversarial attacks.

Technique: The methodology utilizes a novel hierarchical graph representation to model system architectures and a two-phase automated pipeline for discovery and scanning.

Pipeline: Agentic System β†’ Discovery Phase (Structure Extraction) β†’ Scanning Phase (Adaptive Adversarial Probes) β†’ Comprehensive Evaluation Report

Methodology: The framework automatically extracts the system's internal structure into a graph and then executes a broad set of dynamically adaptable probes across various attack vectors.

Results: The approach was successfully demonstrated across 45 diverse agentic systems, showing effective generalization across heterogeneous architectures and the ability to evaluate mitigation strategies.

Limitations: The paper does not explicitly detail the specific types of agentic systems that might be too complex for the graph representation or the computational overhead of the scanning phase.

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5/5 Artificial Intelligence (cs.AI) 24 Jun 2026
ReMMD: Realistic Multilingual Multi-Image Agentic Verification for Multimodal Misinformation Detection

Chenhao Dang, Dantong Zhu, Jun Yang, Conghui He, Weijia Li

Abstract

ArXiv ID: 2606.24112

Authors: Chenhao Dang, Dantong Zhu, Jun Yang, Conghui He, Weijia Li

Abstract:

Multimodal misinformation detection is increasingly important because viral posts now combine long multilingual narratives, several images, mixed provenance, and subtle text--image framing errors. Existing benchmarks and methods remain poorly matched to this setting: they usually isolate short captions, single images, binary labels, or one manipulation source, while agentic verification remains costly under realistic evidence search. We present ReMMD, a realistic multilingual multi-image agentic verification framework for multimodal misinformation detection. ReMMD includes ReMMDBench, a real-world multimodal misinformation detection benchmark with 500 samples, 2,756 images, five monolingual languages, two cross-lingual settings, three text-length tiers, multi-image posts, five-way veracity labels, eight distortion labels, evidence provenance, and rationales. It also includes ReMMD-Agent, a persistent-memory verifier that decomposes posts into atomic points, builds a reusable evidence set, and predicts structured L1/L2/L3 outputs. Across proprietary systems, open LVLMs, MMD-Agent, and T2-Agent, ReMMD-Agent obtains the best five-way veracity performance, with 41.80% accuracy and 39.12% macro-F1 using GPT-5.2, while reducing cost by 17.5% relative to MMD-Agent and 79.9% relative to T2-Agent. The project is available at https://dang-ai.github.io/ReMMD.

Insights

Contribution: The paper introduces ReMMD, a realistic framework for multimodal misinformation detection featuring a comprehensive benchmark (ReMMDBench) and a persistent-memory agentic verifier (ReMMD-Agent).

Core Idea: To address the complexity of real-world misinformation, the authors propose an agentic verification approach that handles multi-image, multilingual narratives with persistent memory and structured reasoning.

Technique: The framework utilizes a persistent-memory verifier that decomposes complex posts into atomic points and builds a reusable evidence set to generate structured L1/L2/L3 outputs.

Pipeline: Multimodal post (text + multiple images) β†’ Atomic point decomposition β†’ Persistent evidence set construction β†’ Structured L1/L2/L3 verification outputs

Methodology: The authors developed ReMMDBench with 500 samples across various languages and distortion types, then evaluated ReMMD-Agent against proprietary and open-source Large Vision-Language Models (LVLMs).

Results: ReMMD-Agent achieved the best five-way veracity performance (41.80% accuracy, 39.12% macro-F1) while reducing costs by 17.5% compared to MMD-Agent and 79.9% compared to T2-Agent.

Limitations: The study focuses on specific veracity labels and may face scalability challenges as the complexity of evidence provenance and cross-lingual nuances increases in even larger datasets.

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4/5 Artificial Intelligence (cs.AI) 24 Jun 2026
Can Language Model Agents be Helpful Circuit Explainers in Mechanistic Interpretability?

Ayan Antik Khan, Harsh Kohli, Yuekun Yao, Huan Sun, Ziyu Yao

Abstract

ArXiv ID: 2606.24026

Authors: Ayan Antik Khan, Harsh Kohli, Yuekun Yao, Huan Sun, Ziyu Yao

Abstract:

Mechanistic interpretability has made substantial progress in automatically localizing circuits, but explaining what localized components do remains labor-intensive and difficult to standardize. In this work, we study whether language model (LM) agents can assist with this explanation problem once a circuit has already been identified. We introduce AgenticInterpBench, a benchmark for circuit explanation built from 84 semi-synthetic transformer circuits with 163 component-level annotations. We propose HyVE (Hypothesize, Validate, Explain), an agentic explainer that analyzes each component through an iterative loop of observation, hypothesis generation, and causal validation, eventually producing a component-level explanation and a circuit-level task description. Across four LM backbones, HyVE recovers useful component- and task-level explanations, but no backbone is uniformly best. Our analysis shows that strong backbones usually form observation-grounded hypotheses, while failures more often arise later in the validation loop, through incomplete validation plans, code execution errors, or unresolved hypotheses. A case study on an arithmetic circuit in Llama-3-8B shows that the same formulation can extend beyond semi-synthetic benchmarks to naturally trained models. Overall, LM agents are promising circuit explainers, but reliable validation remains the key obstacle.

Insights

Contribution: The paper introduces AgenticInterpBench, a benchmark for circuit explanation, and HyVE, an agentic framework designed to automate the explanation of localized transformer components.

Core Idea: Language model agents can assist in mechanistic interpretability by iteratively hypothesizing, validating, and explaining the functions of specific components within a discovered circuit.

Technique: The authors propose the HyVE (Hypothesize, Validate, Explain) framework, which uses an agentic loop to perform observation-grounded hypothesis generation and causal validation.

Pipeline: Identified circuit components β†’ Observation & Hypothesis Generation β†’ Causal Validation (via code execution) β†’ Component-level & Circuit-level explanations

Methodology: The researchers evaluated four LM backbones on 84 semi-synthetic circuits and a Llama-3-8B arithmetic circuit, analyzing success rates and failure modes across the validation loop.

Results: HyVE successfully recovered useful explanations across various backbones, with strong models producing grounded hypotheses; however, performance was hindered by incomplete validation plans and code execution errors.

Limitations: Reliable validation remains the primary obstacle, as agents often struggle with incomplete validation plans or unresolved hypotheses during the iterative loop.

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4/5 Artificial Intelligence (cs.AI) 24 Jun 2026
OmniPath: A Multi-Modal Agentic Framework for Auditing Wheelchair Accessibility

ASM Mobarak Hossain, Nadim Mahmud, Vaskar Raychoudhury, Md Osman Gani

Abstract

ArXiv ID: 2606.24129

Authors: ASM Mobarak Hossain, Nadim Mahmud, Vaskar Raychoudhury, Md Osman Gani

Abstract:

For a wheelchair user, a standard blue line on a map is often a broken promise. While platforms like OpenStreetMap (OSM) successfully capture where a path is, they frequently fail to convey how it physically feels to travel on it. This information barrier is problematic for wheelchair users. To solve this issue, we present OmniPath, a system that moves from passive mapping to proactive environmental auditing. Our framework fuses the network topology of OSM with the submeter precision of high-density aerial LiDAR (USGS 3DEP) to create a high-fidelity 3D model of the pedestrian environment. Rather than simply routing a user, our agent virtually traverses the network, analyzing the surface in 0.5 meter increments. It rigorously quantifies physical friction points specifically running slope, cross slope, and vertical discontinuities against ADA compliance standards, calculating a weighted severity score to categorize hazards from ``Mild'' to ``Critical.'' To ensure real world reliability, we validated the system against 200 physical ground truth field surveys across the National Mall using stratified random sampling. The framework demonstrated strong diagnostic reliability for high-severity hazards, achieving F1-scores of 0.60 for Severe and 0.58 for critical categories. By automating this micro-scale inspection, OmniPath identifies the ``invisible'' barriers that standard maps miss, effectively transforming a static dataset into accessibility data source that anticipates accessibility challenges before the user ever leaves home.

Insights

Contribution: The paper introduces OmniPath, a multi-modal agentic framework that transforms static map data into proactive accessibility audits by identifying micro-scale physical barriers for wheelchair users.

Core Idea: Moving beyond simple path mapping, the system virtually traverses environments to quantify physical friction points like slope and vertical discontinuities against ADA standards.

Technique: The framework fuses OpenStreetMap (OSM) network topology with high-density aerial LiDAR (USGS 3DEP) to create high-fidelity 3D models for automated inspection.

Pipeline: OSM Network Topology + High-density Aerial LiDAR β†’ Agentic Virtual Traversal & 0.5m Increment Analysis β†’ Weighted Severity Scores (Mild to Critical)

Methodology: The system was validated against 200 physical ground truth field surveys across the National Mall using stratified random sampling to ensure real-world reliability.

Results: The framework achieved F1-scores of 0.60 for Severe hazards and 0.58 for Critical hazards, demonstrating strong diagnostic reliability for high-severity barriers.

Limitations: The research focuses on high-severity hazard detection, and the F1-scores suggest room for improvement in overall diagnostic precision across all hazard categories.

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4/5 Artificial Intelligence (cs.AI) 24 Jun 2026
Navigating User Behavior toward Personalized Multimodal Generation

Hengji Zhou, Yufeng Liu, Ye Liu, Yong Xu, Lianghao Xia, Liqiang Nie

Abstract

ArXiv ID: 2606.24196

Authors: Hengji Zhou, Yufeng Liu, Ye Liu, Yong Xu, Lianghao Xia, Liqiang Nie

Abstract:

Modern AIGC pipelines deliver high-fidelity images and videos but presuppose a well-formed creation instruction, while end users rarely articulate visual details, leaving generators misaligned with user demand. We study personalized content generation, which turns a user's interaction history into an executable instruction for downstream synthesis, and identify two obstacles: behavior must be encoded in a form legible to language reasoning, and the model must acquire instruction-writing skill absent from both pretraining and behavior data. We propose NaviGen, which represents each item with a dual identifier coupling a collaborative code and a textual code as a behavioral substrate and a semantic bridge in one token stream. On this representation, a two-stage SFT+RL pipeline first distills preference reasoning and instruction writing from evolutionarily searched supervision, then aligns generation with user intent through hierarchical and self-consistent rewards. Experiments across product, game, and short-video domains show that NaviGen improves personalized image and video generation, strengthens next-item prediction, and yields more specific, relevant, and visually generatable instructions. Our code is anonymously released at: https://github.com/iLearn-Lab/NaviGen.

Insights

Contribution: The paper introduces NaviGen, a framework that bridges the gap between vague user interactions and high-fidelity multimodal generation by transforming interaction history into executable instructions.

Core Idea: Personalized generation requires encoding user behavior into a format legible to language reasoning and equipping models with the specific skill of instruction writing.

Technique: The authors propose a dual identifier representation (collaborative code and textual code) and a two-stage SFT+RL pipeline to distill preference reasoning and instruction-writing skills.

Pipeline: User interaction history β†’ Dual identifier representation β†’ SFT+RL instruction distillation β†’ Hierarchical/self-consistent reward alignment β†’ Personalized image/video generation

Methodology: The study employs evolutionary search to generate supervision data, followed by a two-stage Supervised Fine-Tuning (SFT) and Reinforcement Learning (RL) process to align model outputs with user intent.

Results: NaviGen improves personalized image and video generation across product, game, and short-video domains, enhances next-item prediction, and produces more specific, relevant, and visually generatable instructions.

Limitations: The paper does not explicitly detail the scalability of the evolutionary search for supervision or the computational overhead of the hierarchical reward system.

General

4/5 Artificial Intelligence (cs.AI) 24 Jun 2026
The Geometry Behind Diffusion and Flow Matching: Gradient Flows and Geodesics in Wasserstein Space

Yian Yao, Weiwei Zhang

Abstract

ArXiv ID: 2606.24157

Authors: Yian Yao, Weiwei Zhang

Abstract:

The space $\mathcal{P}_2(\mathbb{R}^d$) of probability measures with finite second moment carries a natural geometry: the quadratic Wasserstein distance W_2 makes it a complete metric space and, following Otto, a (formal) Riemannian manifold whose geodesics are the optimal-transport interpolations. On this manifold, the gradient flow of the free energy F(rho) = KL(rho || \pi) is exactly the Fokker-Planck equation, and its implicit-Euler discretization is the JKO scheme. This is the geometry underlying diffusion models: the forward process descends the free energy, and each denoising step realizes one JKO step, which recovers DDPM, DDIM, NCSN/SMLD, and Energy Matching; this is one scheme, not separate theories. The same manifold supports a second variational principle. Its geodesics - the minimum-action curves of the Benamou-Brenier formula - are precisely the optimal-transport paths that Flow Matching learns. Fixing both endpoints and following the geodesic, generation becomes a deterministic ODE along a straight line, hence far fewer sampling steps. Placing both families of models on one manifold makes their relationship exact: diffusion follows a free-energy gradient flow, an initial-value problem; optimal-transport Flow Matching follows a Wasserstein geodesic, a boundary-value problem. The two reach the same endpoints along different paths.

Insights

Contribution: The paper provides a unified geometric framework for diffusion and flow matching by situating both within the Wasserstein space $\mathcal{P}_2(\mathbb{R}^d)$. It proves that diffusion models are gradient flows of free energy while flow matching models follow Wasserstein geodesics.

Core Idea: Diffusion and flow matching are not separate theories but two different paths on the same manifold: diffusion is an initial-value problem (gradient flow), and flow matching is a boundary-value problem (geodesic).

Technique: The authors utilize the Otto calculus framework to interpret the Fokker-Planck equation as a gradient flow and the Benamou-Brenier formula to characterize flow matching as a geodesic.

Pipeline: Probability measures $\mathcal{P}_2(\mathbb{R}^d)$ $\rightarrow$ Wasserstein manifold geometry $\rightarrow$ Gradient flows (Diffusion) and Geodesics (Flow Matching)

Methodology: The research employs a theoretical geometric analysis of the Wasserstein metric, mapping the JKO scheme to diffusion steps and the minimum-action curves to flow matching paths.

Results: The framework mathematically unifies DDPM, DDIM, NCSN, and Flow Matching, explaining why flow matching allows for fewer sampling steps by following straight-line geodesics.

Limitations: The paper focuses on the formal Riemannian manifold structure, which may face technical challenges in infinite-dimensional settings or non-smooth potentials.

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LLM

5/5 Artificial Intelligence (cs.AI) 24 Jun 2026
Beyond Trajectory Imitation: Strategy-Guided Policy Optimization for LLM Reasoning

Tianyuan Shi, Canbin Huang, Bei Li, Xin Chen, Xiaojun Quan, Jingang Wang, Qifan Wang

Abstract

ArXiv ID: 2606.24064

Authors: Tianyuan Shi, Canbin Huang, Bei Li, Xin Chen, Xiaojun Quan, Jingang Wang, Qifan Wang

Abstract:

Distilling reasoning capabilities from strong to weak language models typically involves imitating specific solution trajectories, effectively transferring what to answer rather than how to reason. This trajectory-level imitation encourages memorization of instance-specific steps rather than acquisition of transferable problem-solving skills, limiting generalization to novel problems. We propose Strategy-Guided Policy Optimization (SGPO), which replaces instance-level trajectory imitation with reusable strategy distillation. SGPO extracts structured strategy descriptions from strong-model responses and, for each problem, constructs both autonomous and strategy-guided trajectories to enable direct comparison of the model's behavior with and without strategic guidance. The framework then addresses two key questions. For how to distill, a token-level forward-KL objective selectively transfers the distributional shift induced by strategy conditioning into the unguided policy, with proximal constraints ensuring stability. For when to distill, adaptive instance-level weighting strengthens guidance when autonomous exploration falls short and reduces it as the model's own competence grows. Experiments on four mathematical benchmarks across two model families show that SGPO consistently outperforms SFT, on-policy RL, and hybrid-policy baselines, improving the average score by 2.2 points over the strongest baseline on Qwen2.5-7B-Instruct. Analysis reveals that the forward-KL objective provides an inherently selective distillation signal that outperforms direct trajectory imitation, and that strategy distillation exhibits complementary scaling with base model capability.

Insights

Contribution: The paper introduces Strategy-Guided Policy Optimization (SGPO), a framework that shifts LLM reasoning distillation from imitating specific solution trajectories to distilling reusable, high-level strategies.

Core Idea: Instead of teaching a model 'what' to answer through trajectory imitation, SGPO teaches 'how' to reason by extracting and distilling structured strategies from strong models into weak models.

Technique: The method employs a token-level forward-KL objective to transfer strategy-induced distributional shifts and an adaptive instance-level weighting mechanism to balance autonomous exploration with strategic guidance.

Pipeline: Strong model responses β†’ Strategy extraction β†’ Autonomous and strategy-guided trajectory construction β†’ Forward-KL distillation with proximal constraints β†’ Strategy-guided policy optimization

Methodology: SGPO constructs dual trajectories for each problem to compare behavior with and without guidance, using a forward-KL objective to selectively distill the influence of strategy conditioning into the unguided policy.

Results: SGPO consistently outperformed SFT, on-policy RL, and hybrid-policy baselines, achieving a 2.2-point average score improvement over the strongest baseline on Qwen2.5-7B-Instruct across four mathematical benchmarks.

Limitations: The paper does not extensively explore the diversity of strategy types or the potential overhead of strategy extraction in extremely large-scale production environments.

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4/5 Artificial Intelligence (cs.AI) 24 Jun 2026
VeryTrace: Verifying Reasoning Traces through Compilable Formalism and Structured Verification

Ninghan Zhong, Ahmet Ege Tanriverdi, Kaan Kale, Sriram Vishwanath

Abstract

ArXiv ID: 2606.24124

Authors: Ninghan Zhong, Ahmet Ege Tanriverdi, Kaan Kale, Sriram Vishwanath

Abstract:

Multi-step reasoning with Chain-of-Thought (CoT) prompting remains fragile: logical errors or hallucinations in early steps silently propagate, producing confident but incorrect conclusions. This paper presents VeryTrace, a zero-shot verification-and-repair framework that formalizes natural-language reasoning traces into a structured, compilable representation. VeryTrace introduces a Domain-Specific Language (DSL) that (i) makes step dependencies explicit, (ii) mechanizes quantitative content as executable expressions, and (iii) structures semantic inferences via deduction schemas. Our hybrid verifier combines deterministic checks for computational correctness, dependency resolution, and constraint satisfaction with targeted LLM audits for non-mechanizable semantic judgments, enabling step-level error localization and repair. Across three diverse domains-competition mathematics (AIME 2025), robotics planning (LLM-BabyBench), and kinship reasoning (CLUTRR), VeryTrace improves accuracy over zero-shot baselines on state-of-the-art LLMs without requiring domain-specific training or in-context examples, demonstrating that formalized trace verification achieves both precision and generalization.

Insights

Contribution: The paper introduces VeryTrace, a zero-shot verification-and-repair framework that formalizes natural-language reasoning traces into a compilable representation to detect and fix errors in multi-step reasoning.

Core Idea: By converting fragile natural language Chain-of-Thought steps into a structured Domain-Specific Language (DSL), the system can mechanize verification and localize errors for targeted repair.

Technique: The framework utilizes a hybrid verifier that combines deterministic checks (for computation and dependencies) with LLM-based audits for semantic judgments.

Pipeline: Natural language reasoning trace β†’ DSL formalization (explicit dependencies, executable expressions, deduction schemas) β†’ Hybrid verification (deterministic + LLM audits) β†’ Error localization and repair β†’ Final corrected conclusion.

Methodology: The authors developed a DSL to structure reasoning and evaluated the framework across three diverse domains (AIME 2025, LLM-BabyBench, and CLUTRR) using state-of-the-art LLMs.

Results: VeryTrace improved accuracy over zero-shot baselines across competition mathematics, robotics planning, and kinship reasoning without requiring domain-specific training or in-context examples.

Limitations: The framework's effectiveness depends on the ability to successfully formalize natural language into the DSL and may face challenges with highly ambiguous semantic inferences.

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4/5 Artificial Intelligence (cs.AI) 24 Jun 2026
T2D-Bench: Evidence-Gated Evaluation of LLM Outputs for Type 2 Diabetes Using a Multi-Layer Clinical-Lifestyle Knowledge Graph

Saba A. Farahani, Hung Cao, Ramesh Jain, Amir M. Rahmani

Abstract

ArXiv ID: 2606.24145

Authors: Saba A. Farahani, Hung Cao, Ramesh Jain, Amir M. Rahmani

Abstract:

Large language models (LLMs) can produce clinically fluent recommendations for type 2 diabetes while failing to satisfy guideline constraints or explicitly justify lifestyle-related glycemic claims. We present T2D-Bench, a reproducible benchmark and evidence-gated evaluation framework for testing whether LLM outputs satisfy explicit, graph-checkable evidence requirements. T2D-Bench is built on a multi-layer clinical-lifestyle knowledge graph that combines a biomedical spine (UMLS, DrugBank, SIDER), computable ADA Standards of Care rules, and lifestyle knowledge connected through a mechanistic bridge to glycemic laboratory effects. Across 100 structured vignettes spanning diagnosis, medication safety, and adversarial lifestyle conflicts, baseline outputs failed benchmark-defined evidence-path checks in 35% of cases for GPT-4o-mini and 33% for GPT-4o. The evidence gate detects unsupported omissions and uses constrained revision to bring outputs into verifier-level compliance with benchmark-defined evidence requirements. These results show that computable evidence constraints can make unsupported clinical omissions explicit, measurable, and correctable in diabetes-focused LLM outputs.

Insights

Contribution: The paper introduces T2D-Bench, a reproducible benchmark and evidence-gated evaluation framework designed to verify if LLM outputs for Type 2 Diabetes satisfy explicit clinical guidelines and lifestyle-related evidence.

Core Idea: LLMs can produce fluent but clinically inaccurate or unsupported diabetes recommendations; this work addresses this by using a multi-layer knowledge graph to enforce evidence-based constraints.

Technique: The authors developed a multi-layer clinical-lifestyle knowledge graph that bridges biomedical data (UMLS, DrugBank) with computable ADA Standards of Care and lifestyle-to-glycemic mechanistic links.

Pipeline: Clinical vignettes β†’ LLM output generation β†’ Evidence-gate verification against knowledge graph β†’ Constrained revision for compliance.

Methodology: The researchers evaluated LLMs across 100 structured vignettes using evidence-path checks to detect unsupported omissions and used a constrained revision process to correct non-compliant outputs.

Results: Baseline models failed evidence-path checks in 35% of cases for GPT-4o-mini and 33% for GPT-4o, demonstrating that the evidence gate can successfully identify and correct unsupported clinical omissions.

Limitations: The study focuses specifically on Type 2 Diabetes and may not generalize to other complex chronic diseases without a similar multi-layer knowledge graph construction.

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RL

5/5 Artificial Intelligence (cs.AI) 24 Jun 2026
An Introduction to Causal Reinforcement Learning

Elias Bareinboim, Junzhe Zhang, Sanghack Lee

Abstract

ArXiv ID: 2606.24160

Authors: Elias Bareinboim, Junzhe Zhang, Sanghack Lee

Abstract:

Causal inference provides a set of principles and tools that allow one to combine data and knowledge about an environment to reason with questions of counterfactual nature, i.e., what would have happened had reality been different, even when no data of this unrealized reality is currently available. Reinforcement learning provides methods to learn a policy that optimizes a specific measure (e.g., reward, regret) when the agent is deployed in an environment and pursues an exploratory, trial-and-error approach. These two disciplines have evolved independently and with virtually no interaction between them. We note that they operate over different aspects of the same building block, counterfactual relations, which makes them umbilically connected. Based on these observations, novel learning opportunities arise when this connection is explicitly acknowledged and mathematized. To realize this potential, we note that any environment where the RL agent is deployed can be decomposed as a collection of autonomous mechanisms with different causal invariances, parsimoniously modeled as a structural causal model; any standard RL setting implicitly encodes such a model. This formalization allows us to put under a unifying treatment different modes of learning, including online, off-policy, and causal calculus learning, which appear unrelated in the literature. However, these modalities are not exhaustive: we introduce several natural and pervasive classes of learning settings that entail novel dimensions of analysis. Specifically, we introduce and discuss through causal lenses generalized policy learning, where to intervene, imitation learning, and counterfactual learning. These tasks lead to a broader view of counterfactual learning and suggest great potential for studying causal inference and reinforcement learning side by side, which we call causal reinforcement learning (CRL).

Insights

Contribution: The paper introduces Causal Reinforcement Learning (CRL), a unified framework that mathematically connects causal inference and reinforcement learning through the shared concept of counterfactual relations.

Core Idea: By modeling RL environments as structural causal models (SCMs), the authors unify disparate learning modalitiesβ€”such as online, off-policy, and causal calculus learningβ€”into a single theoretical framework.

Technique: The authors use structural causal models to decompose environments into autonomous mechanisms with different causal invariances to formalize counterfactual reasoning in RL.

Pipeline: Environment data and domain knowledge β†’ Structural Causal Model (SCM) decomposition β†’ Unified Causal Reinforcement Learning (CRL) framework

Methodology: The authors provide a theoretical formalization of RL settings as SCMs and introduce new classes of learning tasks, including generalized policy learning, intervention-based learning, and counterfactual learning.

Results: The framework provides a unifying treatment for existing RL modalities and identifies novel dimensions of analysis for imitation and counterfactual learning through a causal lens.

Limitations: The paper is an introductory framework and theoretical formalization; specific algorithmic implementations and empirical benchmarks for the new CRL classes are left as areas for future study.

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4/5 Artificial Intelligence (cs.AI) 24 Jun 2026
Safe and Generalizable Hierarchical Multi-Agent RL via Constraint Manifold Control

Zihao Guo, Jianing Zhao, Ling Li, Hao Liang, Giuseppe Loianno, Yali Du

Abstract

ArXiv ID: 2606.24010

Authors: Zihao Guo, Jianing Zhao, Ling Li, Hao Liang, Giuseppe Loianno, Yali Du

Abstract:

Multi-agent systems are widely used in safety-critical applications that require coordinated behavior under strict safety constraints. Existing approaches face a fundamental trade-off: learning-based methods achieve strong empirical performance but lack theoretical safety guarantees, while control-theoretic methods enforce safety but often lead to overly conservative and inefficient behaviors. We propose a hierarchical multi-agent reinforcement learning framework that enforces hard safety constraints under mild assumptions at low level via a constraint manifold, while enabling effective coordination through high-level policy learning. Our approach provides theoretical safety guarantees in the multi-agent setting and yields stationary learning dynamics, thereby enabling stable and efficient training. Empirically, our method achieves competitive performance while maintaining nearly perfect safety rates, and generalizes effectively to varying numbers of agents and obstacles.

Insights

Contribution: The paper introduces a hierarchical multi-agent reinforcement learning (MARL) framework that bridges the gap between learning-based performance and control-theoretic safety guarantees. It provides theoretical safety guarantees in multi-agent settings while ensuring stable training dynamics.

Core Idea: The core idea is to decouple safety enforcement from high-level coordination by using a constraint manifold at the low level to ensure hard safety and a learned policy at the high level for complex behavior.

Technique: The method employs a hierarchical structure where a low-level controller projects actions onto a safe constraint manifold, while a high-level policy learns to navigate the multi-agent coordination task.

Pipeline: Multi-agent environment state β†’ High-level policy (coordination) β†’ Low-level constraint manifold projection (safety enforcement) β†’ Safe coordinated actions

Methodology: The authors develop a framework that enforces hard safety constraints under mild assumptions at the low level, ensuring stationary learning dynamics for the high-level policy. This allows for efficient training and robust coordination in safety-critical environments.

Results: The method achieves competitive performance with nearly perfect safety rates and demonstrates strong generalization to varying numbers of agents and obstacles.

Limitations: The paper mentions the framework relies on 'mild assumptions' for safety guarantees, and the scalability of the constraint manifold calculation in extremely high-dimensional state spaces remains an area for further exploration.

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3/5 Artificial Intelligence (cs.AI) 24 Jun 2026
Breaking the Filter Bubble: A Semantic Pareto-DQN Framework for Multi-Objective Recommendation

Cl\'audio L\'ucio Do Val Lopes, Lucca Machado da Silva, Andr\'e de Oliveira Brand\~ao

Abstract

ArXiv ID: 2606.24042

Authors: Cl\'audio L\'ucio Do Val Lopes, Lucca Machado da Silva, Andr\'e de Oliveira Brand\~ao

Abstract:

Recommender systems often induce filter bubbles and semantic homogenization by monolithically optimizing for immediate user engagement. Standard single-objective models, including traditional Deep Q-Networks, are ill-equipped to navigate the trade-offs between platform retention and critical societal values like information diversity and provider fairness. To address these limitations, we introduce a multi-objective reinforcement learning framework that formalizes recommendation as a semantic multi-objective Markov decision process. By integrating high-fidelity semantic embeddings with a Pareto-DQN agent, our architecture treats engagement, diversity, and fairness as distinct, non-aggregable reward signals, avoiding the pitfalls of static reward scalarization. Empirical evaluations on the MovieLens small dataset shows that our hypervolume based action selection disrupts the feedback loops responsible for semantic collapse. By sustaining high state-trajectory variance, the Pareto-DQN effectively maps the Pareto frontier, achieving gains in auxiliary societal objectives with only marginal impacts on engagement. This work provides a path toward intrinsically aligned, responsible recommender systems.

Insights

Contribution: The paper introduces a multi-objective reinforcement learning framework that treats engagement, diversity, and fairness as distinct, non-aggregable rewards to mitigate filter bubbles in recommender systems.

Core Idea: Instead of scalarizing multiple objectives into a single reward, the framework models recommendation as a semantic multi-objective Markov decision process to navigate the Pareto frontier of competing values.

Technique: The authors employ a Pareto-DQN agent integrated with high-fidelity semantic embeddings and a hypervolume-based action selection mechanism.

Pipeline: User interaction history and semantic embeddings β†’ Pareto-DQN agent processing multi-objective rewards β†’ Hypervolume-based action selection β†’ Diverse and fair recommendations

Methodology: The researchers developed a Pareto-DQN architecture to optimize for non-aggregable rewards and evaluated it using the MovieLens dataset to measure state-trajectory variance and Pareto frontier mapping.

Results: The framework successfully disrupted semantic collapse and achieved significant gains in diversity and fairness with only marginal impacts on user engagement.

Limitations: The study was conducted on the MovieLens small dataset, which may not fully capture the complexities of large-scale, real-world production environments.

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Robotics

5/5 Artificial Intelligence (cs.AI) 24 Jun 2026
FlowR2A: Learning Reward-to-Action Distribution for Multimodal Driving Planning

Xirui Li, Zhe Liu, Xiaoqing Ye, Wenhua Han, Yifeng Pan, Junyu Han, Hengshuang Zhao

Abstract

ArXiv ID: 2606.24231

Authors: Xirui Li, Zhe Liu, Xiaoqing Ye, Wenhua Han, Yifeng Pan, Junyu Han, Hengshuang Zhao

Abstract:

Multimodal driving planning faces a long-standing tension between two paradigms: scoring-based methods benefit from dense reward supervision but are confined to a fixed action vocabulary, while anchor-based methods generate proposals dynamically yet suffer from sparse supervision constrained to a single ground-truth trajectory. In this work, we propose FlowR2A, which resolves this tension by reframing simulation-based rewards from discriminative targets into generative conditions. By learning the reward-conditioned action distribution from dense trajectory-reward pairs with a flow-matching decoder, FlowR2A unifies the dense supervision of scoring-based methods with the proposal generation of anchor-based methods in a single generative model, forcing the model to internalize the correlation between an action and its outcomes in safety, progress, comfort, and rule compliance. To balance hard safety constraints against soft progress objectives, we introduce fine-grained per-timestep reward conditioning and reward noise augmentation. The generative formulation naturally supports controllable test-time sampling via reward guidance and anchored sampling, producing high-quality proposals. FlowR2A achieves state-of-the-art results on the NAVSIM v1 and v2 benchmarks, with multimodal proposals of substantially higher quality than prior methods.

Insights

Contribution: The paper introduces FlowR2A, a generative framework that unifies dense reward supervision with dynamic proposal generation for multimodal driving planning. It resolves the tension between scoring-based and anchor-based methods by learning a reward-conditioned action distribution.

Core Idea: Reframing simulation-based rewards from discriminative targets into generative conditions allows the model to internalize the correlation between specific actions and their outcomes in safety, progress, and comfort.

Technique: The method utilizes a flow-matching decoder to learn action distributions from dense trajectory-reward pairs, complemented by fine-grained per-timestep reward conditioning and reward noise augmentation.

Pipeline: Dense trajectory-reward pairs β†’ Flow-matching decoder with reward conditioning β†’ Multimodal action proposals

Methodology: FlowR2A trains a generative model to map rewards to action distributions, enabling controllable test-time sampling via reward guidance and anchored sampling to balance hard safety constraints with soft progress objectives.

Results: Achieves state-of-the-art results on NAVSIM v1 and v2 benchmarks, producing multimodal proposals of substantially higher quality than prior methods.

Limitations: The paper does not explicitly detail the computational overhead of flow-matching during real-time inference or the specific distribution of reward noise used for augmentation.

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4/5 Artificial Intelligence (cs.AI)Computation and Language (cs.CL) 24 Jun 2026
Neuro-Symbolic Drive: Rule-Grounded Faithful Reasoning for Driving VLAs

Xiangbo Gao, Xiukun Huang, Boyu Lu, Junge Zhang, Mengjie Mao, Jiachen Li, Wei Xiong, Zhengzhong Tu

Abstract

ArXiv ID: 2606.23938

Authors: Xiangbo Gao, Xiukun Huang, Boyu Lu, Junge Zhang, Mengjie Mao, Jiachen Li, Wei Xiong, Zhengzhong Tu

Abstract:

Driving VLA models incorporating Chain-of-Thought (CoT) reasoning are attractive because they leverage pretrained VLM representations and expose intermediate decisions in natural language, yet current rationales often lack the step-by-step decision semantics needed to keep the rationale causally connected to the planned motion. We introduce Neuro-Symbolic Drive, a neuro-symbolic driving framework that supervises a driving VLA with rule-grounded reasoning traces extracted directly from classical rule-based planners. Our key observation is that rule-based planners are symbolic AI systems that already function as executable reasoning engines: they reason about active safety constraints, search over candidate maneuvers, and select a final trajectory. We instrument these planners in simulation to capture both the executed trajectory and the internal decision trace at each rule-evaluation step. Each trace is serialized into structured rule-grounded reasoning and paired with the trajectory to fine-tune Qwen3.5-4B as a driving VLA. Because these traces are derived directly from the planner states that determine the action, they ensure reasoning is structurally coupled to motion generation by construction, rather than by post-hoc alignment. On our simulator-generated benchmark, detailed rule-grounded reasoning reduces ADE@3s from 0.47 to 0.26 and miss rate from 8.30% to 6.40% under three-camera perception, and from 0.54 to 0.26 and 10.13% to 5.99% under eight-camera perception. Neuro-Symbolic Drive thus converts neuro-symbolic planning logic into structured supervision. Code base: https://github.com/XiangboGaoBarry/Neural-Symbolic-Drive.

Insights

Contribution: The paper introduces Neuro-Symbolic Drive, a framework that improves driving Vision-Language-Action (VLA) models by supervising them with rule-grounded reasoning traces extracted from classical rule-based planners.

Core Idea: By using the internal decision traces of symbolic planners as supervision, the model ensures that the generated natural language rationales are causally and structurally coupled to the final driving motion.

Technique: The authors instrument classical rule-based planners in simulation to capture internal rule-evaluation steps, serializing these into structured reasoning traces to fine-tune a Qwen3.5-4B VLA.

Pipeline: Multi-camera perception input β†’ Rule-based planner execution (capturing internal decision traces) β†’ Serialization into rule-grounded reasoning β†’ Fine-tuning Qwen3.5-4B VLA β†’ Final trajectory output

Methodology: The researchers extract executable reasoning traces (safety constraints, maneuver searches, and selections) from symbolic planners and pair them with trajectories to train a VLA model via supervised fine-tuning.

Results: Rule-grounded reasoning reduced ADE@3s from 0.47 to 0.26 and miss rate from 8.30% to 6.40% under three-camera perception, and from 0.54 to 0.26 and 10.13% to 5.99% under eight-camera perception.

Limitations: The framework relies on the availability of classical rule-based planners to generate supervision traces and may face challenges in generalizing to scenarios where symbolic rules are difficult to define.

Speech

4/5 Artificial Intelligence (cs.AI) 24 Jun 2026
Data Scale, Not Latency, Shapes Cross-Lingual Encoder Transfer in Streaming ASR

Nenad Banfic

Abstract

ArXiv ID: 2606.24169

Authors: Nenad Banfic

Abstract:

Adapting a streaming speech recognition model to a new language requires choosing between two plausible warm starts: a multilingual (ML) encoder or an English-only (EN) encoder. The common intuition is that the multilingual encoder should help most at low data, but it is unclear how long that advantage persists, whether tight streaming latency amplifies it, and whether it survives deployment quantization. We answer these questions with a controlled sweep of a 0.6 B-parameter cache-aware FastConformer transducer across eight European languages, up to five target-language data scales (100 h to 2500 h), three streaming tiers plus offline decoding, and up to four public test sets. The main result is that multilingual initialization is a data-limited advantage, not a latency-limited one. On FLEURS at 160 ms, the mean EN-ML word error rate (WER) gap falls from +4.21 percentage points (pp) at 100 h to +0.20 pp at 2500 h; a power-law fit summarizes this decay, with each doubling of target-language data roughly halving the remaining advantage. Across the three streaming tiers, the across-language mean EN-ML gap is approximately stable at each scale from 100 to 1000 h, and is near zero by 2500 h. Finally, 4-bit weight-only encoder quantization at the matched 560 ms streaming tier reduces the encoder footprint by about 3x, with an average FLEURS WER increase of about 0.5 pp. The resulting guideline is simple: use multilingual initialization in low-data regimes, treat the choice as effectively irrelevant at large data, and make latency and quantization decisions independently.

Insights

Contribution: The paper quantifies how multilingual (ML) vs. English-only (EN) encoder initialization affects streaming ASR performance across different data scales, latencies, and quantization levels. It establishes that the advantage of ML initialization is strictly a data-limited phenomenon that decays predictably as target-language data increases.

Core Idea: Multilingual pre-training provides a significant head start in low-data regimes, but this advantage diminishes as more target-language data becomes available, regardless of streaming latency constraints.

Technique: The study employs a controlled sweep of a 0.6B-parameter cache-aware FastConformer transducer across eight European languages with varying data scales and streaming tiers.

Pipeline: Speech data (8 languages) β†’ Multilingual vs. English-only encoder initialization β†’ FastConformer transducer training (varying data scales/latencies) β†’ Word Error Rate (WER) evaluation β†’ Quantization analysis

Methodology: The authors conducted a systematic evaluation across five data scales (100h to 2500h), three streaming tiers, and four public test sets, using power-law fitting to model the decay of the ML-initialization advantage.

Results: The EN-ML WER gap falls from +4.21 pp at 100h to +0.20 pp at 2500h; each doubling of data roughly halves the remaining advantage. The gap remains stable across streaming tiers and is near zero at 2500h. 4-bit weight-only quantization reduced the footprint by 3x with a minimal WER increase of ~0.5 pp.

Limitations: The study focuses on European languages and specific streaming tiers; it does not explore the impact of different encoder architectures or non-European language families.

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Personal Interests

Papers discovered through your interest topics.

Multi-Agent Systems

3/5 Software Engineering (cs.SE) 23 Jun 2026
Automated Summarization of Software Documents: An LLM-based Multi-Agent Approach

Duc S. H. Nguyen, Minh T. Nguyen, Phuong T. Nguyen, Juri Di Rocco, Davide Di Ruscio

Abstract

ArXiv ID: 2606.24689

Authors: Duc S. H. Nguyen, Minh T. Nguyen, Phuong T. Nguyen, Juri Di Rocco, Davide Di Ruscio

Abstract:

Large Language Models (LLMs) and LLM-based Multi-Agent Systems (MAS) are revolutionizing software engineering (SE) by advancing automation, decision-making, and knowledge processing. Their recent application to SE tasks has already shown promising results. In this paper, we focus on summarization as a key application area. We present Metagente, an LLM-based MAS designed to generate concise and accurate summaries of software documentation. Metagente employs a Teacher-Student architecture where multiple LLM agents collaborate to enhance relevance and precision of produced summaries. An empirical evaluation on real-world datasets demonstrates Metagente's effectiveness in streamlining workflows, outperforming the considered baselines. The evaluation provides evidence that Metagente improves summarization for requirements analysis and technical documentation. Our findings underscore the transformative potential of these technologies in SE, while identifying challenges and future research directions for their seamless integration.

Insights

Contribution: The paper introduces Metagente, an LLM-based Multi-Agent System (MAS) designed to automate the generation of concise and accurate summaries for software documentation.

Core Idea: The research leverages a collaborative multi-agent framework to improve the relevance and precision of software documentation summarization compared to single-model approaches.

Technique: The system utilizes a Teacher-Student architecture where multiple LLM agents work together to refine and validate the summary content.

Pipeline: Software documentation β†’ Multi-agent collaboration (Teacher-Student architecture) β†’ Concise and accurate summaries

Methodology: The authors conducted an empirical evaluation of Metagente on real-world datasets, comparing its performance against established baselines in requirements analysis and technical documentation.

Results: Metagente outperformed the considered baselines, demonstrating improved effectiveness in streamlining workflows and enhancing summary precision.

Limitations: The study identifies challenges regarding the seamless integration of MAS into existing software engineering workflows and suggests areas for future research.

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3/5 Machine Learning (cs.LG)Multiagent Systems (cs.MA) 22 Jun 2026
MAS-PromptBench: When Does Prompt Optimization Improve Multi-Agent LLM Systems?

Juyang Bai, Laixi Shi

Abstract

ArXiv ID: 2606.23664

Authors: Juyang Bai, Laixi Shi

Abstract:

Multi-agent systems (MAS) offer a scalable path forward for agentic AI, comprising multiple LLM-based agents, each assigned a system prompt and a position within a workflow that governs inter-agent coordination and output aggregation. System prompts thus form a critical and accessible optimization surface: they specify agents' roles and behaviors, enabling system-level improvements without model finetuning. Although prompt optimization has shown substantial potential for single LLMs, extending it to MAS poses distinct challenges, notably an exponentially growing search space. It remains unclear whether, when, and by how much prompt optimization improves MAS performance, and how sensitive such gains are to system configuration. In this work, we systematically study system-prompt optimization across a broad range of MAS setups varying in task, workflow, communication protocol, and team size, benchmarking two prompt optimizers that naturally extend state-of-the-art single-agent methods. The results reveal its potential to unlock significant gains while exposing open challenges, characterizing when and how much prompt optimization helps across diverse MAS settings.

Insights

Contribution: The paper systematically investigates the impact of system-prompt optimization on Multi-Agent Systems (MAS), identifying when and how much optimization improves performance across diverse configurations.

Core Idea: While prompt optimization is effective for single LLMs, MAS introduces an exponentially growing search space, making it unclear how system-level prompt tuning affects inter-agent coordination and final outputs.

Technique: The authors benchmark two prompt optimizers extended from state-of-the-art single-agent methods to optimize the roles and behaviors of multiple agents within a workflow.

Pipeline: MAS configurations (task, workflow, protocol, team size) β†’ Prompt Optimization (system-prompt tuning) β†’ Performance Benchmarking

Methodology: The study evaluates prompt optimization across a broad range of MAS setups, varying communication protocols and team sizes to characterize the sensitivity of gains to system configuration.

Results: The results reveal that prompt optimization can unlock significant performance gains in certain MAS settings but also expose challenges related to the complexity of the search space and configuration sensitivity.

Limitations: The research highlights the difficulty of managing the exponentially growing search space in MAS and the variability of optimization gains across different system configurations.

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3/5 eess.SY 22 Jun 2026
Robust Data-Driven Nash Equilibrium Seeking under Partial-Decision Information

Linqi Wang, Yifei Li, Wenjie Liu, Yuzhou Wei, Gang Wang, Lihua Xie

Abstract

ArXiv ID: 2606.23011

Authors: Linqi Wang, Yifei Li, Wenjie Liu, Yuzhou Wei, Gang Wang, Lihua Xie

Abstract:

This paper presents a data-driven framework for decentralized Nash equilibrium (NE) seeking in multi-agent systems with unknown linear dynamics subject to exogenous disturbances, operating under partial-decision information (where agents lack direct access to the decisions of all others) and equality constraints. The proposed framework integrates an NE model, a distributed communication protocol, an internal model for disturbance rejection, and a data-driven stabilization strategy. By reformulating the problem as a cooperative output regulation problem, we synthesize controllers directly from noisy input-state data via semi-definite programs (SDPs), providing formal guarantees for closed-loop stability and asymptotic convergence to the NE. The approach is further extended to a class of nonlinear systems with constant disturbances by leveraging integral control and describing nonlinearities via quadratic constraints. Numerical simulations involving unmanned aerial vehicle networks and a rotary-wing aerial vehicle formation validate the efficacy and robustness of the proposed method.

Insights

Contribution: The paper proposes a robust data-driven framework for decentralized Nash equilibrium (NE) seeking in multi-agent systems with unknown linear dynamics, exogenous disturbances, and partial-decision information.

Core Idea: The problem is reformulated as a cooperative output regulation problem, allowing for the synthesis of controllers directly from noisy input-state data while ensuring stability and convergence.

Technique: The framework utilizes semi-definite programs (SDPs) to synthesize controllers and employs an internal model for disturbance rejection and quadratic constraints for nonlinear extensions.

Pipeline: Noisy input-state data β†’ Cooperative output regulation reformulation β†’ Semi-definite programming (SDP) controller synthesis β†’ Decentralized Nash equilibrium seeking

Methodology: The authors integrate an NE model with a distributed communication protocol and a data-driven stabilization strategy, extending the linear approach to nonlinear systems via integral control.

Results: The method provides formal guarantees for closed-loop stability and asymptotic convergence, validated through numerical simulations of UAV networks and rotary-wing aerial vehicle formations.

Limitations: The current framework is primarily focused on systems with constant disturbances and specific classes of nonlinearities described by quadratic constraints.

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Tech News

Agentic AI

Hacker News Wed, 24 Ju
Qwen-AgentWorld: Language World Models for General Agents

Qwen-AgentWorld introduces a framework for developing language world models specifically designed to power general-purpose agents. It focuses on enabling agents to understand complex environments and perform multi-step reasoning to achieve goals. The research highlights advancements in how LLMs can interact with and navigate diverse simulated and real-world scenarios.

Reddit r/MachineLearning 2026-06-24
DeepSWE: new benchmark looking at how well today's frontier models can actually write code [R]

DeepSWE is a new open-source benchmark designed to evaluate the coding capabilities of frontier models on real-world software engineering tasks. It addresses key flaws in previous benchmarks by ensuring contamination-free data, high repository diversity, and complex requirements that demand significant code generation. The benchmark utilizes hand-written verifiers to test actual software behavior rather than simple implementation details.

Computer Vision

Hacker News Wed, 24 Ju
DiffusionBench: Towards Holistic Evaluation of Generative Diffusion Transformers

DiffusionBench is a comprehensive evaluation framework designed to assess Generative Diffusion Transformers (DiT) across multiple dimensions. It provides a holistic benchmark to measure performance in areas like image synthesis, consistency, and visual quality. The project aims to standardize how researchers evaluate the capabilities of state-of-the-art diffusion models.

Computing Systems

Hacker News Tue, 23 Ju
Vulnerability reports are not special anymore

The author argues that vulnerability reports have become commoditized and less 'special' due to the rise of automated scanning and standardized reporting. This shift impacts how security researchers prioritize findings and how organizations manage the influx of security data.

Hacker News Wed, 24 Ju
Meta Pauses Employee-Tracking Program Following Internal Data Leak

Meta has temporarily suspended an internal employee-tracking program after a significant data leak exposed sensitive information. The incident highlights ongoing challenges regarding internal data security and the ethical implications of workplace monitoring technologies. The company is currently auditing its data handling protocols to prevent future breaches.

General

Reddit r/DeepLearning 2026-06-23
TimesFM Deep Dive: How Google’s Forecasting Foundation Model Actually Works [R]

A deep dive into Google's TimesFM, a foundation model specifically designed for time-series forecasting rather than a repurposed LLM. The analysis explores how the model uses patch-based Transformer architectures to learn reusable patterns like seasonality and regime shifts for zero-shot forecasting. The discussion highlights the potential for these models to serve as either replacements for task-specific models or as high-performing zero-shot baselines.

LLM

Reddit r/DeepLearning 2026-06-24
The Evolution of Context Representation: From RNNs to Hybrid Memory Models

The post explores the historical progression of how neural networks handle context, tracing the journey from Recurrent Neural Networks (RNNs) to modern architectures. It specifically highlights the emergence of hybrid memory models as a solution to the limitations of standard attention mechanisms in long-context processing.

Reddit r/DeepLearning 2026-06-23
I compiled a unified LLM-CTF benchmark – 2,639 real data points from NeurIPS 2024 + original multi-agent runs

A new unified LLM-CTF benchmark has been compiled, featuring 2,639 real data points sourced from NeurIPS 2024 and original multi-agent runs. This dataset aims to provide a standardized framework for evaluating the security and reasoning capabilities of Large Language Models in Capture The Flag scenarios.

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Agentic AI

Speech