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Retrieval-augmented agents can query external evidence, yet their reliability in multi-step reasoning remains limited: noisy retrieval may derail multi-hop question answering, while outcome-only reinforcement learning provides credit…

Artificial Intelligence · Computer Science 2026-03-13 Jiangming Shu , Yuxiang Zhang , Ye Ma , Xueyuan Lin , Jitao Sang

AI agents dynamically acquire tools, orchestrate sub-agents, and transact across organizational boundaries, yet no existing security layer verifies what an agent can do, whether it executed what it claims, or what happened in a multi-agent…

Cryptography and Security · Computer Science 2026-03-23 Ziling Zhou

Readers of applied-domain LLM capability evaluations want to know what AI systems can currently do. That literature answers a related, but consequentially different, question: what older, cheaper, less-elicited models could do months or…

Computers and Society · Computer Science 2026-05-07 David Gringras , Misha Salahshoor

Agentic Reinforcement Learning (ARL) trains large language models to interleave reasoning with external tool execution to solve complex tasks. Most existing ARL methods train a single set of parameters to support both reasoning and tool-use…

Artificial Intelligence · Computer Science 2026-05-29 Yu Li , Mingyang Yi , Xiuyu Li , Ju Fan , Fuxin Jiang , Binbin Chen , Peng Li , Jie Song , Tieying Zhang

Enterprise IT support interactions are fundamentally diagnostic: effective resolution requires iterative evidence gathering from ambiguous user reports to identify an underlying root cause. While retrieval-augmented generation (RAG)…

Retrieving real-time information is a fundamental capability for search-integrated agents in real-world applications. However, existing benchmarks are predominantly static and therefore fail to capture the temporal dynamics of information…

Information Retrieval · Computer Science 2026-05-12 Wenjie Zhou , Yuan Gao , Xin Zhou , Hao Fu , Zhongjian Miao , Wei Chen , Bo Chen , Xiaobing Zhao

Current Retrieval-Augmented Generation (RAG) systems predominantly rely on relevance-based dense retrieval, sequentially fetching documents to maximize semantic similarity with the query. However, in knowledge-intensive and real-world…

Artificial Intelligence · Computer Science 2026-03-31 Davide Di Gioia

Legal case retrieval (LCR) aims to automatically scour for comparable legal cases based on a given query, which is crucial for offering relevant precedents to support the judgment in intelligent legal systems. Due to similar goals, it is…

Computation and Language · Computer Science 2025-02-26 Nuo Xu , Pinghui Wang , Zi Liang , Junzhou Zhao , Xiaohong Guan

Retrieval-Augmented Generation (RAG) grounds language models in factual evidence but introduces critical challenges regarding knowledge conflicts between internalized parameters and retrieved information. However, existing reliability…

Information Retrieval · Computer Science 2026-04-24 Sunguk Shin , Meeyoung Cha , Byung-Jun Lee , Sungwon Park

Recent advances in open-domain QA have led to strong models based on dense retrieval, but only focused on retrieving textual passages. In this work, we tackle open-domain QA over tables for the first time, and show that retrieval can be…

Computation and Language · Computer Science 2021-06-10 Jonathan Herzig , Thomas Müller , Syrine Krichene , Julian Martin Eisenschlos

Large language models (LLMs) have recently shown strong progress on scientific reasoning, yet two major bottlenecks remain. First, explicit retrieval fragments reasoning, imposing a hidden "tool tax" of extra tokens and steps. Second,…

Long-context multiple-choice question answering tasks require robust reasoning over extensive text sources. Since most of the pre-trained transformer models are restricted to processing only a few hundred words at a time, successful…

Information Retrieval · Computer Science 2025-01-28 Manish Singh , Manish Shrivastava

Most image retrieval research prioritizes improving predictive performance, often overlooking situations where the reliability of predictions is equally important. The gap between model performance and reliability requirements highlights…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Kaiwen Cai , Chris Xiaoxuan Lu , Xingyu Zhao , Xiaowei Huang

Retrieval-augmented generation (RAG) has become a common strategy for updating large language model (LLM) responses with current, external information. However, models may still rely on memorized training data, bypass the retrieved…

Machine Learning · Computer Science 2025-06-19 Le Vu Anh , Nguyen Viet Anh , Mehmet Dik , Luong Van Nghia

While Retrieval-Augmented Generation (RAG) has been swiftly adopted in scientific and clinical QA systems, a comprehensive evaluation benchmark in the medical domain is lacking. To address this gap, we introduce the Medical…

Computation and Language · Computer Science 2026-02-12 Liz Li , Wei Zhu

Technology-assisted review (TAR) refers to human-in-the-loop active learning workflows for finding relevant documents in large collections. These workflows often must meet a target for the proportion of relevant documents found (i.e.…

Information Retrieval · Computer Science 2021-06-21 Eugene Yang , David D. Lewis , Ophir Frieder

This paper presents a fault-tolerant control scheme for constrained linear systems. First, a new variant of the Reference Governor (RG) called At Once Reference Governor (AORG) is introduced. The AORG is distinguished from the conventional…

Optimization and Control · Mathematics 2021-07-20 Mehdi Hosseinzadeh , Ilya Kolmanovsky , Sanjoy Baruah , Bruno Sinopoli

Group-relative reinforcement learning with verifiable rewards (RLVR) often wastes the most informative data it already has the failures. When all rollouts are wrong, gradients stall; when one happens to be correct, the update usually…

Machine Learning · Computer Science 2026-03-17 Yongxin Wang , Zhicheng Yang , Meng Cao , Mingfei Han , Haokun Lin , Yingying Zhu , Xiaojun Chang , Xiaodan Liang

Automated question-answering (QA) systems increasingly rely on retrieval-augmented generation (RAG) to ground large language models (LLMs) in authoritative medical knowledge, ensuring clinical accuracy and patient safety in Artificial…

Computation and Language · Computer Science 2026-03-05 Aswini Sivakumar , Vijayan Sugumaran , Yao Qiang

Retrieval-Augmented Generation (RAG) has emerged as a powerful approach to mitigate large language model (LLM) hallucinations by incorporating external knowledge retrieval. However, existing RAG frameworks often apply retrieval…

Information Retrieval · Computer Science 2025-07-29 Jinyan Su , Jennifer Healey , Preslav Nakov , Claire Cardie