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In search settings, calibrating the scores during the ranking process to quantities such as click-through rates or relevance levels enhances a system's usefulness and trustworthiness for downstream users. While previous research has…

Information Retrieval · Computer Science 2024-08-28 Puxuan Yu , Daniel Cohen , Hemank Lamba , Joel Tetreault , Alex Jaimes

The problem of data sparsity has long been a challenge in recommendation systems, and previous studies have attempted to address this issue by incorporating side information. However, this approach often introduces side effects such as…

Information Retrieval · Computer Science 2024-01-09 Wei Wei , Xubin Ren , Jiabin Tang , Qinyong Wang , Lixin Su , Suqi Cheng , Junfeng Wang , Dawei Yin , Chao Huang

Owing to their powerful semantic reasoning capabilities, Large Language Models (LLMs) have been effectively utilized as recommenders, achieving impressive performance. However, the high inference latency of LLMs significantly restricts…

Information Retrieval · Computer Science 2024-08-21 Yu Cui , Feng Liu , Pengbo Wang , Bohao Wang , Heng Tang , Yi Wan , Jun Wang , Jiawei Chen

This paper explores the effectiveness of using large language models (LLMs) for personalized movie recommendations from users' perspectives in an online field experiment. Our study involves a combination of between-subject prompt and…

Information Retrieval · Computer Science 2024-05-01 Ruixuan Sun , Xinyi Li , Avinash Akella , Joseph A. Konstan

Personalized content-based recommender systems have become indispensable tools for users to navigate through the vast amount of content available on platforms like daily news websites and book recommendation services. However, existing…

Information Retrieval · Computer Science 2023-09-01 Qijiong Liu , Nuo Chen , Tetsuya Sakai , Xiao-Ming Wu

Large Language Models (LLMs) have made significant strides in natural language processing and are increasingly being integrated into recommendation systems. However, their potential in educational recommendation systems has yet to be fully…

Information Retrieval · Computer Science 2025-04-14 Boxuan Ma , Md Akib Zabed Khan , Tianyuan Yang , Agoritsa Polyzou , Shin'ichi Konomi

Large language models (LLMs) have recently been used as backbones for recommender systems. However, their performance often lags behind conventional methods in standard tasks like retrieval. We attribute this to a mismatch between LLMs'…

Information Retrieval · Computer Science 2024-04-02 Yuwei Cao , Nikhil Mehta , Xinyang Yi , Raghunandan Keshavan , Lukasz Heldt , Lichan Hong , Ed H. Chi , Maheswaran Sathiamoorthy

Information technology has profoundly altered the way humans interact with information. The vast amount of content created, shared, and disseminated online has made it increasingly difficult to access relevant information. Over the past two…

Information Retrieval · Computer Science 2025-04-14 Yu Zhang , Shutong Qiao , Jiaqi Zhang , Tzu-Heng Lin , Chen Gao , Yong Li

As a paradigm that delves into the deep seated drivers of user behavior, motivation-based recommendation systems have emerged as a prominent research direction in the field of personalized information retrieval. Unlike traditional…

Information Retrieval · Computer Science 2026-03-16 Yicheng Di

Evaluation and ranking of large language models (LLMs) has become an important problem with the proliferation of these models and their impact. Evaluation methods either require human responses which are expensive to acquire or use pairs of…

Computation and Language · Computer Science 2024-06-11 Amit Dhurandhar , Rahul Nair , Moninder Singh , Elizabeth Daly , Karthikeyan Natesan Ramamurthy

Sequential recommendation is a task to capture hidden user preferences from historical user item interaction data and recommend next items for the user. Significant progress has been made in this domain by leveraging classification based…

Information Retrieval · Computer Science 2024-08-30 Panfeng Cao , Pietro Lio

Collaborative filtering recommender systems (CF-RecSys) have shown successive results in enhancing the user experience on social media and e-commerce platforms. However, as CF-RecSys struggles under cold scenarios with sparse user-item…

Information Retrieval · Computer Science 2024-06-04 Sein Kim , Hongseok Kang , Seungyoon Choi , Donghyun Kim , Minchul Yang , Chanyoung Park

Conventional research on large language models (LLMs) has primarily focused on refining output distributions, while paying less attention to the decoding process that transforms these distributions into final responses. Recent advances,…

Computation and Language · Computer Science 2025-10-28 Chenheng Zhang , Tianqi Du , Jizhe Zhang , Mingqing Xiao , Yifei Wang , Yisen Wang , Zhouchen Lin

Recommender systems serve as foundational infrastructure in modern information ecosystems, helping users navigate digital content and discover items aligned with their preferences. At their core, recommender systems address a fundamental…

Information Retrieval · Computer Science 2026-05-12 Min Hou , Le Wu , Yuxin Liao , Yonghui Yang , Zhen Zhang , Yu Wang , Changlong Zheng , Han Wu , Richang Hong

Large Language Model (LLM) has transformative potential in various domains, including recommender systems (RS). There have been a handful of research that focuses on empowering the RS by LLM. However, previous efforts mainly focus on LLM as…

Information Retrieval · Computer Science 2025-03-11 Qidong Liu , Xiangyu Zhao , Yuhao Wang , Yejing Wang , Zijian Zhang , Yuqi Sun , Xiang Li , Maolin Wang , Pengyue Jia , Chong Chen , Wei Huang , Feng Tian

Recommender systems are essential components of many online platforms, yet traditional approaches still struggle with understanding complex user preferences and providing explainable recommendations. The emergence of Large Language Model…

Information Retrieval · Computer Science 2025-03-05 Qiyao Peng , Hongtao Liu , Hua Huang , Qing Yang , Minglai Shao

Tabular data synthesis is crucial in machine learning, yet existing general methods-primarily based on statistical or deep learning models-are highly data-dependent and often fall short in recommender systems. This limitation arises from…

Information Retrieval · Computer Science 2025-02-12 Jingtong Gao , Zhaocheng Du , Xiaopeng Li , Yichao Wang , Xiangyang Li , Huifeng Guo , Ruiming Tang , Xiangyu Zhao

There is a growing interest in utilizing large-scale language models (LLMs) to advance next-generation Recommender Systems (RecSys), driven by their outstanding language understanding and in-context learning capabilities. In this scenario,…

Information Retrieval · Computer Science 2025-08-18 Haohao Qu , Wenqi Fan , Zihuai Zhao , Qing Li

Large Language Models (LLMs) excel in data synthesis but can be inaccurate in domain-specific tasks, which retrieval-augmented generation (RAG) systems address by leveraging user-provided data. However, RAGs require optimization in both…

Computation and Language · Computer Science 2024-11-05 Kazi Ahmed Asif Fuad , Lizhong Chen

The application of Large Language Models (LLMs) in recommender systems faces key challenges in delivering deep personalization and intelligent reasoning, especially for interactive scenarios. Current methods are often constrained by limited…

Information Retrieval · Computer Science 2025-10-17 Jiani Huang , Xingchen Zou , Lianghao Xia , Qing Li