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The recent advances of conversational recommendations provide a promising way to efficiently elicit users' preferences via conversational interactions. To achieve this, the recommender system conducts conversations with users, asking their…

Information Retrieval · Computer Science 2022-09-14 Jinhang Zuo , Songwen Hu , Tong Yu , Shuai Li , Handong Zhao , Carlee Joe-Wong

Over the past decade, recommender systems have experienced a surge in popularity. Despite notable progress, they grapple with challenging issues, such as high data dimensionality and sparseness. Representing users and items as…

Information Retrieval · Computer Science 2025-07-28 Pedro R. Pires , Tiago A. Almeida

Influenced by the great success of deep learning in computer vision and language understanding, research in recommendation has shifted to inventing new recommender models based on neural networks. In recent years, we have witnessed…

Information Retrieval · Computer Science 2022-02-17 Le Wu , Xiangnan He , Xiang Wang , Kun Zhang , Meng Wang

Collaborative filtering (CF) has achieved great success in the field of recommender systems. In recent years, many novel CF models, particularly those based on deep learning or graph techniques, have been proposed for a variety of…

Information Retrieval · Computer Science 2021-02-16 Haiyang Zhang , Ivan Ganchev , Nikola S. Nikolov , Mark Stevenson

The growth of recommender systems (RecSys) is driven by digitization and the need for personalized content in areas such as e-commerce and video streaming. The content in these systems often changes rapidly and therefore they constantly…

Information Retrieval · Computer Science 2024-11-15 Shiyu Wang , Hao Ding , Yupeng Gu , Sergul Aydore , Kousha Kalantari , Branislav Kveton

Sequential recommendation refers to recommending the next item of interest for a specific user based on his/her historical behavior sequence up to a certain time. While previous research has extensively examined Markov chain-based…

Information Retrieval · Computer Science 2025-01-06 DongYu Du , Yue Chan

Recommendations Systems allow users to identify trending items among a community while being timely and relevant to the user's expectations. When the purpose of various Recommendation Systems differs, the required type of recommendations…

Information Retrieval · Computer Science 2022-05-05 Dinuka Ravijaya Piyadigama , Guhanathan Poravi

Preference elicitation plays a central role in interactive recommender systems. Most preference elicitation approaches use either item queries that ask users to select preferred items from a slate, or attribute queries that ask them to…

Information Retrieval · Computer Science 2023-11-07 Erdem Biyik , Fan Yao , Yinlam Chow , Alex Haig , Chih-wei Hsu , Mohammad Ghavamzadeh , Craig Boutilier

Item-based Collaborative Filtering(short for ICF) has been widely adopted in recommender systems in industry, owing to its strength in user interest modeling and ease in online personalization. By constructing a user's profile with the…

Information Retrieval · Computer Science 2018-11-13 Feng Xue , Xiangnan He , Xiang Wang , Jiandong Xu , Kai Liu , Richang Hong

Recommender systems are ubiquitous in the domain of e-commerce, used to improve the user experience and to market inventory, thereby increasing revenue for the site. Techniques such as item-based collaborative filtering are used to model…

Information Retrieval · Computer Science 2018-12-31 Daniel A. Galron , Yuri M. Brovman , Jin Chung , Michal Wieja , Paul Wang

Recommender systems learn from historical users' feedback that is often non-uniformly distributed across items. As a consequence, these systems may end up suggesting popular items more than niche items progressively, even when the latter…

Information Retrieval · Computer Science 2020-10-06 Ludovico Boratto , Gianni Fenu , Mirko Marras

Recommender systems are intrinsically tied to a reliability/coverage dilemma: The more reliable we desire the forecasts, the more conservative the decision will be and thus, the fewer items will be recommended. This causes a detriment to…

Information Retrieval · Computer Science 2024-05-22 Diego Pérez-López , Fernando Ortega , Ángel González-Prieto , Jorge Dueñas-Lerín

In the era of information explosion, Recommender Systems (RS) are essential for alleviating information overload and providing personalized user experiences. Recent advances in diffusion-based generative recommenders have shown promise in…

Information Retrieval · Computer Science 2025-11-18 Chengyi Liu , Xiao Chen , Shijie Wang , Wenqi Fan , Qing Li

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

Recommendation systems are an important units in today's e-commerce applications, such as targeted advertising, personalized marketing and information retrieval. In recent years, the importance of contextual information has motivated…

Information Retrieval · Computer Science 2016-07-29 Tal Hadad

With the overwhelming online products available in recent years, there is an increasing need to filter and deliver relevant personalized advice for users. Recommender systems solve this problem by modeling and predicting individual…

Machine Learning · Statistics 2020-02-11 Antonia Godoy-Lorite , Roger Guimera , Marta Sales-Pardo

Recommender systems are used with the purpose of suggesting contents and resources to the users in a social network. These systems use ranks or tags each user assign to different resources to predict or make suggestions to users. Lately,…

Social and Information Networks · Computer Science 2021-05-05 Hossein Monshizadeh Naeen , Mehrdad Jalali

We propose a reinforcement learning-based approach to optimize conversational strategies for product recommendation across diverse industries. As organizations increasingly adopt intelligent agents to support sales and service operations,…

Information Retrieval · Computer Science 2025-07-03 Kang Liu

Conversational recommenders are emerging as a powerful tool to personalize a user's recommendation experience. Through a back-and-forth dialogue, users can quickly hone in on just the right items. Many approaches to conversational…

Information Retrieval · Computer Science 2023-02-15 Allen Lin , Ziwei Zhu , Jianling Wang , James Caverlee

Chat dialogues contain considerable useful information about a speaker's interests, preferences, and experiences.Thus, knowledge from open-domain chat dialogue can be used to personalize various systems and offer recommendations for…

Machine Learning · Computer Science 2024-02-08 Ryutaro Asahara , Masaki Takahashi , Chiho Iwahashi , Michimasa Inaba