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The question-answering system for Life science research, which is characterized by the rapid pace of discovery, evolving insights, and complex interactions among knowledge entities, presents unique challenges in maintaining a comprehensive…

Computation and Language · Computer Science 2024-08-15 Chengrui Wang , Qingqing Long , Meng Xiao , Xunxin Cai , Chengjun Wu , Zhen Meng , Xuezhi Wang , Yuanchun Zhou

Context-grounded generation underpins many LLM applications, including long-document question answering (QA), conversational personalization, and retrieval-augmented generation (RAG). However, classic token-based context concatenation is…

Information Retrieval · Computer Science 2026-01-27 Minghao Tang , Shiyu Ni , Jingtong Wu , Zengxin Han , Keping Bi

Retrieval-Augmented Generation (RAG) enhances the factual grounding of Large Language Models by conditioning their outputs on external documents. However, standard embedding-based retrievers treat naturally structured corpora, such as…

Information Retrieval · Computer Science 2026-05-11 Giorgia Bolognesi , Claudio Estatico , Ulderico Fugacci , Isabella Mastroianni , Claudio Muselli , Luca Oneto

Recently, Large Language Model (LLM)-empowered recommender systems have revolutionized personalized recommendation frameworks and attracted extensive attention. Despite the remarkable success, existing LLM-empowered RecSys have been…

Information Retrieval · Computer Science 2025-04-04 Liangbo Ning , Wenqi Fan , Qing Li

Large language models (LLMs) have been widely used for various tasks and applications. However, LLMs and fine-tuning are limited to the pre-trained data. For example, ChatGPT's world knowledge until 2021 can be outdated or inaccurate. To…

Computation and Language · Computer Science 2025-04-24 Ahsan Bilal , Beiyu Lin

Retrieval-augmented generation (RAG) is increasingly recognized as an effective approach to mitigating the hallucination of large language models (LLMs) through the integration of external knowledge. While numerous efforts, most studies…

Computation and Language · Computer Science 2025-10-10 Shuo Yu , Mingyue Cheng , Qi Liu , Daoyu Wang , Jiqian Yang , Jie Ouyang , Yucong Luo , Chenyi Lei , Enhong Chen

Large Language Models (LLM) have shown remarkable language capabilities fueling attempts to integrate them into applications across a wide range of domains. An important application area is question answering over private enterprise…

Artificial Intelligence · Computer Science 2024-06-07 Masoomali Fatehkia , Ji Kim Lucas , Sanjay Chawla

Driven by advances in Large Language Models (LLMs), integrating them into recommendation tasks has gained interest due to their strong semantic understanding and prompt flexibility. Prior work encoded user-item interactions or metadata into…

Information Retrieval · Computer Science 2025-06-10 Keyu Zhao , Fengli Xu , Yong Li

Large Language Models (LLMs) have shown promise in character imitation, enabling immersive and engaging conversations. However, they often generate content that is irrelevant or inconsistent with a character's background. We attribute these…

Artificial Intelligence · Computer Science 2025-05-27 Yongjie Wang , Jonathan Leung , Zhiqi Shen

Naive Retrieval-Augmented Generation (RAG) focuses on individual documents during retrieval and, as a result, falls short in handling networked documents which are very popular in many applications such as citation graphs, social media, and…

Machine Learning · Computer Science 2025-07-15 Yuntong Hu , Zhihan Lei , Zheng Zhang , Bo Pan , Chen Ling , Liang Zhao

Recommender systems are essential for guiding users through the vast and diverse landscape of digital content by delivering personalized and relevant suggestions. However, improving both personalization and interpretability remains a…

Information Retrieval · Computer Science 2025-08-05 Danial Ebrat , Tina Aminian , Sepideh Ahmadian , Luis Rueda

Knowledge Graph-based Retrieval-Augmented Generation (KG-RAG) significantly enhances the reasoning capabilities of LargeLanguage Models by leveraging structured knowledge. However, existing KG-RAG frameworks typically operate as open-loop…

Information Retrieval · Computer Science 2025-08-14 Xujie Yuan , Shimin Di , Jielong Tang , Libin Zheng , Jian Yin

Recent advancements in Large Language Models (LLMs) have transformed Natural Language Processing (NLP), enabling complex information retrieval and generation tasks. Retrieval-Augmented Generation (RAG) has emerged as a key innovation,…

Information Retrieval · Computer Science 2026-02-27 Teri Rumble , Zbyněk Gazdík , Javad Zarrin , Jagdeep Ahluwalia

This paper presents the development and application of a Large Language Model Retrieval-Augmented Generation (LLM-RAG) system tailored for nanotechnology research. The system leverages the capabilities of a sophisticated language model to…

Computation and Language · Computer Science 2025-03-03 Achuth Chandrasekhar , Omid Barati Farimani , Olabode T. Ajenifujah , Janghoon Ock , Amir Barati Farimani

Recommender systems are pivotal in enhancing user experiences across various web applications by analyzing the complicated relationships between users and items. Knowledge graphs(KGs) have been widely used to enhance the performance of…

Information Retrieval · Computer Science 2024-07-02 Guangsi Shi , Xiaofeng Deng , Linhao Luo , Lijuan Xia , Lei Bao , Bei Ye , Fei Du , Shirui Pan , Yuxiao Li

Large Language Models (LLMs) have demonstrated strong capabilities in web search and reasoning. However, their dependence on static training corpora makes them prone to factual errors and knowledge gaps. Retrieval-Augmented Generation (RAG)…

Artificial Intelligence · Computer Science 2026-01-26 Jiasheng Xu , Mingda Li , Yongqiang Tang , Peijie Wang , Wensheng Zhang

Interactive conversational recommender systems have gained significant attention for their ability to capture user preferences through natural language interactions. However, existing approaches face substantial challenges in handling…

Artificial Intelligence · Computer Science 2025-10-03 Bo Ma , Hang Li , ZeHua Hu , XiaoFan Gui , LuYao Liu , Simon Lau

Most universities in the United States encourage their students to explore academic areas before declaring a major and to acquire academic breadth by satisfying a variety of requirements. Each term, students must choose among many thousands…

Information Retrieval · Computer Science 2024-12-31 Hugh Van Deventer , Mark Mills , August Evrard

The advent of large language models (LLMs) has allowed numerous applications, including the generation of queried responses, to be leveraged in chatbots and other conversational assistants. Being trained on a plethora of data, LLMs often…

Computation and Language · Computer Science 2025-05-16 Deeksha Prahlad , Chanhee Lee , Dongha Kim , Hokeun Kim

Traditional recommender systems such as matrix factorization methods have primarily focused on learning a shared dense embedding space to represent both items and user preferences. Subsequently, sequence models such as RNN, GRUs, and,…

Information Retrieval · Computer Science 2024-08-27 Yaoyiran Li , Xiang Zhai , Moustafa Alzantot , Keyi Yu , Ivan Vulić , Anna Korhonen , Mohamed Hammad