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Query optimization is a crucial component for the efficacy of Retrieval-Augmented Generation (RAG) systems. While reinforcement learning (RL)-based agentic and reasoning methods have recently emerged as a promising direction on query…

Artificial Intelligence · Computer Science 2026-01-30 Wei Wen , Sihang Deng , Tianjun Wei , Keyu Chen , Ruizhi Qiao , Xing Sun

Teaching a computer to read and answer general questions pertaining to a document is a challenging yet unsolved problem. In this paper, we describe a novel neural network architecture called the Reasoning Network (ReasoNet) for machine…

Machine Learning · Computer Science 2017-06-21 Yelong Shen , Po-Sen Huang , Jianfeng Gao , Weizhu Chen

Machine learning with artificial neural networks is revolutionizing science. The most advanced challenges require discovering answers autonomously. This is the domain of reinforcement learning, where control strategies are improved…

Quantum Physics · Physics 2018-10-03 Thomas Fösel , Petru Tighineanu , Talitha Weiss , Florian Marquardt

Domain experts often need to extract structured information from large corpora. We advocate for a search paradigm called ``extractive search'', in which a search query is enriched with capture-slots, to allow for such rapid extraction. Such…

Computation and Language · Computer Science 2021-06-10 Shauli Ravfogel , Hillel Taub-Tabib , Yoav Goldberg

Search engines operate under a strict time constraint as a fast response is paramount to user satisfaction. Thus, neural re-ranking models have a limited time-budget to re-rank documents. Given the same amount of time, a faster re-ranking…

Information Retrieval · Computer Science 2020-02-06 Sebastian Hofstätter , Markus Zlabinger , Allan Hanbury

The rise of personal assistants has made conversational question answering (ConvQA) a very popular mechanism for user-system interaction. State-of-the-art methods for ConvQA over knowledge graphs (KGs) can only learn from crisp…

Information Retrieval · Computer Science 2021-08-23 Magdalena Kaiser , Rishiraj Saha Roy , Gerhard Weikum

Reinforcement learning (RL) has demonstrated strong potential in training large language models (LLMs) capable of complex reasoning for real-world problem solving. More recently, RL has been leveraged to create sophisticated LLM-based…

Computation and Language · Computer Science 2025-05-22 Bowen Jin , Jinsung Yoon , Priyanka Kargupta , Sercan O. Arik , Jiawei Han

Recent advances in query optimization have shifted from traditional rule-based and cost-based techniques towards machine learning-driven approaches. Among these, reinforcement learning (RL) has attracted significant attention due to its…

Databases · Computer Science 2026-04-17 Seokwon Lee , Jaeyoung Sim , Sihyun Kim , Yuhsing Li , Yiwen Zhu , Kwanghyun Park

Coreference resolution systems are typically trained with heuristic loss functions that require careful tuning. In this paper we instead apply reinforcement learning to directly optimize a neural mention-ranking model for coreference…

Computation and Language · Computer Science 2016-11-02 Kevin Clark , Christopher D. Manning

In a number of information retrieval applications (e.g., patent search, literature review, due diligence, etc.), preventing false negatives is more important than preventing false positives. However, approaches designed to reduce review…

Computation and Language · Computer Science 2023-11-28 Timo Kats , Peter van der Putten , Jan Scholtes

Retrieving keywords (bidwords) with the same intent as query, referred to as close variant keywords, is of prime importance for effective targeted search advertising. For head and torso search queries, sponsored search engines use a huge…

Computation and Language · Computer Science 2021-06-08 Akash Kumar Mohankumar , Nikit Begwani , Amit Singh

Pairing a lexical retriever with a neural re-ranking model has set state-of-the-art performance on large-scale information retrieval datasets. This pipeline covers scenarios like question answering or navigational queries, however, for…

Information Retrieval · Computer Science 2022-10-20 Tim Baumgärtner , Leonardo F. R. Ribeiro , Nils Reimers , Iryna Gurevych

E-commerce search engines often rely solely on product titles as input for ranking models with latency constraints. However, this approach can result in suboptimal relevance predictions, as product titles often lack sufficient detail to…

Information Retrieval · Computer Science 2025-08-13 Nitin Yadav , Changsung Kang , Hongwei Shang , Ming Sun

The hallucinations of large language models (LLMs) are increasingly mitigated by allowing LLMs to search for information and to ground their answers in real sources. Unfortunately, LLMs often struggle with posing the right search queries,…

Machine Learning · Computer Science 2024-11-01 Sheryl Hsu , Omar Khattab , Chelsea Finn , Archit Sharma

Automatic summarization of legal texts is an important and still a challenging task since legal documents are often long and complicated with unusual structures and styles. Recent advances of deep models trained end-to-end with…

Computation and Language · Computer Science 2022-04-14 Duy-Hung Nguyen , Bao-Sinh Nguyen , Nguyen Viet Dung Nghiem , Dung Tien Le , Mim Amina Khatun , Minh-Tien Nguyen , Hung Le

Configuring databases for efficient querying is a complex task, often carried out by a database administrator. Solving the problem of building indexes that truly optimize database access requires a substantial amount of database and domain…

Databases · Computer Science 2024-04-12 Gabriel Paludo Licks , Felipe Meneguzzi

The purpose of this paper is to use reinforcement learning to model learning agents which can recognize formal languages. Agents are modeled as simple multi-head automaton, a new model of finite automaton that uses multiple heads, and six…

Machine Learning · Computer Science 2020-10-21 Alper Şekerci , Özlem Salehi

Stack-augmented recurrent neural networks (RNNs) have been of interest to the deep learning community for some time. However, the difficulty of training memory models remains a problem obstructing the widespread use of such models. In this…

Machine Learning · Computer Science 2019-11-05 Yikang Shen , Shawn Tan , Arian Hosseini , Zhouhan Lin , Alessandro Sordoni , Aaron Courville

Large language models have demonstrated impressive reasoning capabilities but are inherently limited by their knowledge reservoir. Retrieval-augmented reasoning mitigates this limitation by allowing LLMs to query external resources, but…

Computation and Language · Computer Science 2025-09-22 Yaorui Shi , Sihang Li , Chang Wu , Zhiyuan Liu , Junfeng Fang , Hengxing Cai , An Zhang , Xiang Wang

Large Language Models (LLMs) often fail to utilize their latent reasoning capabilities due to a distributional mismatch between ambiguous human inquiries and the structured logic required for machine activation. Existing alignment methods…

Computation and Language · Computer Science 2026-04-29 Yixiao Zhou , Dongzhou Cheng , zhiliang wu , Yi Yang , Yu Cheng , Hehe Fan