collaborators

18 papers

cs.CL2026

Training Reasoning Models to Generate Diverse Scientific Ideas

Manya Wadhwa, Pranav Narayanan Venkit, Hiroaki Hayashi +3

One of the first steps of a research pipeline is generating ideas. Large Language Models (LLMs) are increasingly used to automate this step, but most of this work optimizes the qua…

cs.AI2026

Agentic Self-Awareness: Aligning Knowing, Acting, and Holding

Qinglin Chen, Hiroaki Hayashi, Jiaxin Zhang +1

Frontier AI agents increasingly act in environments where seemingly solvable tasks may lack prerequisites, contain conflicting requirements, or reveal blockers only during executio…

cs.LG2026

Prospective Hindsight: Self-Calibrating Reinforcement Learning via Prediction-Reality Gaps

Jiaxin Zhang, Xiangyu Peng, Qinglin Chen +3

Reinforcement learning for long-horizon agents relies on purely retrospective training signals: credit is assigned only after observing environmental consequences, leaving the agen…

cs.AI2026

Fork Where the Model Changes Its Mind: Belief-Shift Branching for Tree-Structured Reinforcement Learning

Bin Lei, Yu Li, Prafulla Kumar Choubey +7

Tree-structured rollouts give critic-free reinforcement learning with verifiable rewards (RLVR) step-level credit: fork a chain at an intermediate point, and sibling outcome differ…

cs.AI2026

On the Fragility of Self-Improving Agents: Variance, Task Order, and Underspecification

Qinyuan Ye, Yu Li, Yada Pruksachatkun +2

Memory-based self-improving agents--those that learn from an online stream of tasks and improve over time by maintaining a textual memory bank--have shown great promise in recent l…

cs.CL2026

Belief Cascades Drive Persuasion in LLM Agent Networks

Haoyi Qiu, Genglin Liu, Pranav Narayanan Venkit +4

Multi-agent LLM systems increasingly debate answers, coordinate research, simulate users, and mediate information flows, making agent-to-agent persuasion a basic but undermeasured…

cs.AI2026

Best Friends, Not Forever: Evaluating Long-Horizon Persona Collapse and Behavioral Drift in AI Companions

Pranav Narayanan Venkit, Akshara Prabhakar, Yu Li +2

As AI companions increasingly mediate repeated social interaction, users may rely on a stable role and shared history, yet locally acceptable replies do not ensure that either pers…

cs.LG2026

Speculate with Memory: Lossless Acceleration for LLM Agents

Yu Li, Qinyuan Ye, Prafulla Kumar Choubey +2

Speculative execution accelerates LLM agents by using a smaller, cheaper model to predict and pre-launch the next step while the environment is idle. However, existing speculators…

cs.AI2026

GTA: Generating Long-Horizon Tasks for Web Agents at Scale

Tenghao Huang, Kung-Hsiang Huang, Prafulla Kumar Choubey +4

Web agents, which couple language models with browsing and tool-use capabilities, show promise as open web assistants. Yet progress is increasingly limited by the lack of scalable,…

cs.CL2026

Dont Stop Early: Scalable Enterprise Deep Research with Controlled Information Flow and Evidence-Aware Termination

Prafulla Kumar Choubey, Kung-Hsiang Huang, Pranav Narayanan Venkit +5

Enterprise deep research often fails to produce decision-ready reports due to uneven information coverage, context explosion, and premature stopping. We propose a scalable Enterpri…

cs.LG2026

The Illusion of Certainty: Decoupling Capability and Calibration in On-Policy Distillation

Jiaxin Zhang, Xiangyu Peng, Qinglin Chen +3

On-policy distillation (OPD) is an increasingly important paradigm for post-training language models. However, we identify a pervasive Scaling Law of Miscalibration: while OPD effe…

cs.CV2026

MTA-Agent: An Open Recipe for Multimodal Deep Search Agents

Xiangyu Peng, Can Qin, An Yan +4

Multimodal large language models (MLLMs) have demonstrated strong capabilities in visual understanding, yet they remain limited in complex, multi-step reasoning that requires deep…

cs.AI2026

Agentic Confidence Calibration

Jiaxin Zhang, Caiming Xiong, Chien-Sheng Wu

AI agents are rapidly advancing from passive language models to autonomous systems executing complex, multi-step tasks. Yet their overconfidence in failure remains a fundamental ba…

cs.AI2026

Agentic Uncertainty Quantification

Jiaxin Zhang, Prafulla Kumar Choubey, Kung-Hsiang Huang +2

Although AI agents have demonstrated impressive capabilities in long-horizon reasoning, their reliability is severely hampered by the ``Spiral of Hallucination,'' where early epist…

cs.AI2026

From Passive Metric to Active Signal: The Evolving Role of Uncertainty Quantification in Large Language Models

Jiaxin Zhang, Wendi Cui, Zhuohang Li +4

While Large Language Models (LLMs) show remarkable capabilities, their unreliability remains a critical barrier to deployment in high-stakes domains. This survey charts a functiona…

cs.CL2025

Seeing is Believing? Evaluating Vision-Language Model Susceptibility in Agent-to-Agent Multimodal Persuasion

Haoyi Qiu, Yilun Zhou, Pranav Narayanan Venkit +4

As autonomous agents increasingly interact, they inevitably attempt to influence one another. While prior work in text-only settings has explored the dynamics of Agent-to-Agent (A2…

cs.CL2025

GUI-KV: Efficient GUI Agents via KV Cache with Spatio-Temporal Awareness

Kung-Hsiang Huang, Haoyi Qiu, Yutong Dai +2

Graphical user interface (GUI) agents built on vision-language models have emerged as a promising approach to automate human-computer workflows. However, they also face the ineffic…

cs.LG2025

Nudging the Boundaries of LLM Reasoning

Justin Chih-Yao Chen, Becky Xiangyu Peng, Prafulla Kumar Choubey +4

Current online reinforcement learning (RL) algorithms like GRPO share a key limitation in LLM reasoning: they cannot learn from problems that are "unsolvable" to the model. In othe…