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The rapid growth of Retrieval-Augmented Generation (RAG) has created a proliferation of toolkits, yet a fundamental gap remains between experimental prototypes and robust, production-ready systems. We present SearchGym, a modular…

Information Retrieval · Computer Science 2026-03-06 Jerome Tze-Hou Hsu

Personalizing Large Language Model (LLM) agents requires conditioning them on user-specific data, creating a critical trade-off between task utility and data disclosure. While the utility of adding user data often exhibits diminishing…

Artificial Intelligence · Computer Science 2025-12-16 Daniel Platnick , Marjan Alirezaie , Hossein Rahnama

Industrial recommendation systems are typically composed of multiple stages, including retrieval, ranking, and blending. The retrieval stage plays a critical role in generating a high-recall set of candidate items that covers a wide range…

Information Retrieval · Computer Science 2025-07-01 Zhibo Fan , Hongtao Lin , Haoyu Chen , Bowen Deng , Hedi Xia , Yuke Yan , James Li

We propose a method to create document representations that reflect their internal structure. We modify Tree-LSTMs to hierarchically merge basic elements such as words and sentences into blocks of increasing complexity. Our Structure…

Computation and Language · Computer Science 2019-10-08 Khalil Mrini , Claudiu Musat , Michael Baeriswyl , Martin Jaggi

Answering numerical questions over hybrid contents from the given tables and text(TextTableQA) is a challenging task. Recently, Large Language Models (LLMs) have gained significant attention in the NLP community. With the emergence of large…

Computation and Language · Computer Science 2023-09-25 Tongxu Luo , Fangyu Lei , Jiahe Lei , Weihao Liu , Shihu He , Jun Zhao , Kang Liu

Tree-structured LSTM is promising way to consider long-distance interaction over hierarchies. However, there have been few research efforts on the hyperparameter tuning of the construction and traversal of tree-structured LSTM. To name a…

Machine Learning · Computer Science 2020-08-24 Ruo Ando , Yoshiyasu Takefuji

Large Language Model (LLM)-based applications are increasingly deployed across various domains, including customer service, education, and mobility. However, these systems are prone to inaccurate, fictitious, or harmful responses, and their…

Software Engineering · Computer Science 2026-01-06 Lev Sorokin , Ivan Vasilev , Ken E. Friedl , Andrea Stocco

Large language model (LLM)-enhanced sequential recommendation typically aims to improve two core components: user semantic embedding extraction and utilization. Despite promising results, existing methods still have two limitations: 1) In…

Information Retrieval · Computer Science 2026-05-13 Guorui Li , Dugang Liu , Lei Li , Xing Tang , Zhong Ming

Deep learning sequence models have led to a marked increase in performance for a range of Natural Language Processing tasks, but it remains an open question whether they are able to induce proper hierarchical generalizations for…

Computation and Language · Computer Science 2019-06-11 Ethan Wilcox , Roger Levy , Richard Futrell

Multimodal retrieval is the task of aggregating information from queries across heterogeneous modalities to retrieve desired targets. State-of-the-art multimodal retrieval models can understand complex queries, yet they are typically…

Information Retrieval · Computer Science 2026-03-25 Chuong Huynh , Manh Luong , Abhinav Shrivastava

Recent work in database query optimization has used complex machine learning strategies, such as customized reinforcement learning schemes. Surprisingly, we show that LLM embeddings of query text contain useful semantic information for…

Databases · Computer Science 2024-11-06 Peter Akioyamen , Zixuan Yi , Ryan Marcus

Large Language Models (LLMs) excel in language comprehension and generation but are prone to hallucinations, producing factually incorrect or unsupported outputs. Retrieval Augmented Generation (RAG) systems address this issue by grounding…

Information Retrieval · Computer Science 2025-04-09 Chandana Sree Mala , Gizem Gezici , Fosca Giannotti

Since only a small number of traces generated from distributed tracing helps in troubleshooting, its storage requirement can be significantly reduced by biasing the selection towards anomalous traces. To aid in this scenario, we propose…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-10-11 Alim Ul Gias , Yicheng Gao , Matthew Sheldon , José A. Perusquía , Owen O'Brien , Giuliano Casale

Multimodal information retrieval (MMIR) has gained attention for its flexibility in handling text, images, or mixed queries and candidates. Recent breakthroughs in multimodal large language models (MLLMs) boost MMIR performance by…

Information Retrieval · Computer Science 2026-02-27 Dawei Su , Dongsheng Wang

Personalization has emerged as a critical research area in modern intelligent systems, focusing on mining users' behavioral history and adapting to their preferences for delivering tailored experiences. Despite the remarkable few-shot…

Computation and Language · Computer Science 2024-10-29 Yuchen Zhuang , Haotian Sun , Yue Yu , Rushi Qiang , Qifan Wang , Chao Zhang , Bo Dai

This paper introduces the Learned User Significance Tracker (LUST), a framework designed to analyze video content and quantify the thematic relevance of its segments in relation to a user-provided textual description of significance. LUST…

Multimedia · Computer Science 2025-08-07 Anderson de Lima Luiz

Semi-structured tables, widely used in real-world applications (e.g., financial reports, medical records, transactional orders), often involve flexible and complex layouts (e.g., hierarchical headers and merged cells). These tables…

Artificial Intelligence · Computer Science 2025-09-03 Zirui Tang , Boyu Niu , Xuanhe Zhou , Boxiu Li , Wei Zhou , Jiannan Wang , Guoliang Li , Xinyi Zhang , Fan Wu

Large Language Models (LLMs) have made substantial progress in recent years, yet evaluating their capabilities in practical Retrieval-Augmented Generation (RAG) scenarios remains challenging. In practical applications, LLMs must demonstrate…

Computation and Language · Computer Science 2025-05-26 Minsoo Khang , Sangjun Park , Teakgyu Hong , Dawoon Jung

The search of information in large text repositories has been plagued by the so-called document-query vocabulary gap, i.e. the semantic discordance between the contents in the stored document entities on the one hand and the human query on…

Information Retrieval · Computer Science 2020-04-22 Bhawani Selvaretnam , Mohammed Belkhatir

A large amount of information is stored in data tables. Users can search for data tables using a keyword-based query. A table is composed primarily of data values that are organized in rows and columns providing implicit structural…

Information Retrieval · Computer Science 2022-03-29 Mohamed Trabelsi , Zhiyu Chen , Shuo Zhang , Brian D. Davison , Jeff Heflin