collaborators

6 papers

cs.CL2026

SkillLearnBench: Benchmarking Continual Learning Methods for Agent Skill Generation on Real-World Tasks

Shanshan Zhong, Yi Lu, Jingjie Ning +7

Skills have become the de facto way to enable LLM agents to perform complex real-world tasks with customized instructions, workflows, and tools, but how to learn them automatically…

cs.AI2026

DeepFact: Co-Evolving Benchmarks and Agents for Deep Research Factuality

Yukun Huang, Leonardo F. R. Ribeiro, Momchil Hardalov +3

Search-augmented LLM agents can produce deep research reports (DRRs), but verifying claim-level factuality remains challenging. Existing fact-checkers are primarily designed for ge…

cs.AI2025

Deep Research Comparator: A Platform For Fine-grained Human Annotations of Deep Research Agents

Prahaladh Chandrahasan, Jiahe Jin, Zhihan Zhang +9

Effectively evaluating deep research agents that autonomously search the web, analyze information, and generate reports remains a major challenge, particularly when it comes to ass…

cs.CL2025

RefusalBench: Generative Evaluation of Selective Refusal in Grounded Language Models

Aashiq Muhamed, Leonardo F. R. Ribeiro, Markus Dreyer +2

The ability of language models in RAG systems to selectively refuse to answer based on flawed context is critical for safety, yet remains a significant failure point. Our large-sca…

cs.CL2025

NeoQA: Evidence-based Question Answering with Generated News Events

Max Glockner, Xiang Jiang, Leonardo F. R. Ribeiro +2

Evaluating Retrieval-Augmented Generation (RAG) in large language models (LLMs) is challenging because benchmarks can quickly become stale. Questions initially requiring retrieval…

cs.AI2025

The Amazon Nova Family of Models: Technical Report and Model Card

Amazon AGI, Aaron Langford, Aayush Shah +783

We present Amazon Nova, a new generation of state-of-the-art foundation models that deliver frontier intelligence and industry-leading price performance. Amazon Nova Pro is a highl…