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Explainable recommender systems are designed to elucidate the explanation behind each recommendation, enabling users to comprehend the underlying logic. Previous works perform rating prediction and explanation generation in a multi-task…

Information Retrieval · Computer Science 2025-04-09 Shijie Liu , Ruixing Ding , Weihai Lu , Jun Wang , Mo Yu , Xiaoming Shi , Wei Zhang

Despite the success of recommender systems in alleviating information overload, fairness issues have raised concerns in recent years, potentially leading to unequal treatment for certain user groups. While efforts have been made to improve…

Information Retrieval · Computer Science 2025-05-27 Haoran Xin , Ying Sun , Chao Wang , Yanke Yu , Weijia Zhang , Hui Xiong

This study deeply explores the application of large language model (LLM) in personalized recommendation system of e-commerce. Aiming at the limitations of traditional recommendation algorithms in processing large-scale and multi-dimensional…

Information Retrieval · Computer Science 2024-10-18 Wei Xu , Jue Xiao , Jianlong Chen

Large Language Models (LLMs) have recently shown impressive abilities in handling various natural language-related tasks. Among different LLMs, current studies have assessed ChatGPT's superior performance across manifold tasks, especially…

The emergence of agentic recommender systems powered by Large Language Models (LLMs) represents a paradigm shift in personalized recommendations, leveraging LLMs' advanced reasoning and role-playing capabilities to enable autonomous,…

Information Retrieval · Computer Science 2025-05-29 Yu Shang , Peijie Liu , Yuwei Yan , Zijing Wu , Leheng Sheng , Yuanqing Yu , Chumeng Jiang , An Zhang , Fengli Xu , Yu Wang , Min Zhang , Yong Li

Large language models (LLMs) have shown potential in recommendation systems (RecSys) by using them as either knowledge enhancer or zero-shot ranker. A key challenge lies in the large semantic gap between LLMs and RecSys where the former…

Information Retrieval · Computer Science 2025-12-22 Guangneng Hu

Large Language Models (LLMs) excel in various tasks, including personalized recommendations. Existing evaluation methods often focus on rating prediction, relying on regression errors between actual and predicted ratings. However, user…

Computation and Language · Computer Science 2025-01-24 Zhaoxuan Tan , Zinan Zeng , Qingkai Zeng , Zhenyu Wu , Zheyuan Liu , Fengran Mo , Meng Jiang

Product review generation is an important task in recommender systems, which could provide explanation and persuasiveness for the recommendation. Recently, Large Language Models (LLMs, e.g., ChatGPT) have shown superior text modeling and…

Computation and Language · Computer Science 2024-07-11 Qiyao Peng , Hongtao Liu , Hongyan Xu , Qing Yang , Minglai Shao , Wenjun Wang

Large language models (LLMs) like ChatGPT are increasingly used in academic writing, yet issues such as incorrect or fabricated references raise ethical concerns. Moreover, current content quality evaluations often rely on subjective human…

Computation and Language · Computer Science 2025-09-15 Jing Ren , Weiqi Wang

The integration of Large Language Models (LLMs) into recommendation systems has introduced unprecedented capabilities for natural language understanding, explanation generation, and conversational interactions. However, existing evaluation…

Information Retrieval · Computer Science 2026-01-28 Sushant Mehta

Large Language Models (LLMs) such as ChatGPT, have gained significant attention due to their impressive natural language processing capabilities. It is crucial to prioritize human-centered principles when utilizing these models.…

Computation and Language · Computer Science 2023-06-21 Yue Huang , Qihui Zhang , Philip S. Y , Lichao Sun

Large Language Models (LLMs) have revolutionized Recommender Systems (RS) through advanced generative user modeling. However, LLM-based RS (LLM-RS) often inadvertently perpetuates bias present in the training data, leading to severe…

Information Retrieval · Computer Science 2026-02-03 Jin Li , Huilin Gu , Shoujin Wang , Qi Zhang , Shui Yu , Chen Wang , Xiwei Xu , Fang Chen

The advent of Large Language Models (LLMs) has paved the way for complex tasks such as role-playing, which enhances user interactions by enabling models to imitate various characters. However, the closed-source nature of state-of-the-art…

Bias and fairness risks in Large Language Models (LLMs) vary substantially across deployment contexts, yet existing approaches lack systematic guidance for selecting appropriate evaluation metrics. We present a decision framework that maps…

Computation and Language · Computer Science 2026-05-12 Dylan Bouchard

Recommender systems have traditionally followed modular architectures comprising candidate generation, multi-stage ranking, and re-ranking, each trained separately with supervised objectives and hand-engineered features. While effective in…

Information Retrieval · Computer Science 2025-10-06 Rahul Raja , Anshaj Vats , Arpita Vats , Anirban Majumder

Understanding and addressing unfairness in LLMs are crucial for responsible AI deployment. However, there is a limited number of quantitative analyses and in-depth studies regarding fairness evaluations in LLMs, especially when applying…

Machine Learning · Computer Science 2024-05-07 Yunqi Li , Lanjing Zhang , Yongfeng Zhang

Our research investigates the potential of Large-scale Language Models (LLMs), specifically OpenAI's GPT, in credit risk assessment-a binary classification task. Our findings suggest that LLMs, when directed by judiciously designed prompts…

Computation and Language · Computer Science 2023-07-25 Yashar Deldjoo

Recent advancements in recommendation systems have shifted towards more comprehensive and personalized recommendations by utilizing large language models (LLM). However, effectively integrating LLM's commonsense knowledge and reasoning…

Information Retrieval · Computer Science 2023-08-22 Zhixuan Chu , Hongyan Hao , Xin Ouyang , Simeng Wang , Yan Wang , Yue Shen , Jinjie Gu , Qing Cui , Longfei Li , Siqiao Xue , James Y Zhang , Sheng Li

Recommending cold items remains a significant challenge in billion-scale online recommendation systems. While warm items benefit from historical user behaviors, cold items rely solely on content features, limiting their recommendation…

Information Retrieval · Computer Science 2024-12-30 Feiran Huang , Yuanchen Bei , Zhenghang Yang , Junyi Jiang , Hao Chen , Qijie Shen , Senzhang Wang , Fakhri Karray , Philip S. Yu

Large Language Models (LLMs) have the potential to be used to support research evaluation and have a moderate capability to estimate the research quality of a journal article from its title and abstract. This paper assesses whether there…

Digital Libraries · Computer Science 2026-03-17 Kayvan Kousha , Mike Thelwall