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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

We introduce Divnet, a flexible technique for learning networks with diverse neurons. Divnet models neuronal diversity by placing a Determinantal Point Process (DPP) over neurons in a given layer. It uses this DPP to select a subset of…

Machine Learning · Computer Science 2017-04-20 Zelda Mariet , Suvrit Sra

Recommender systems (RS) suggest items-based on the estimated preferences of users. Recent RS methods utilise vector space embeddings and deep learning methods to make efficient recommendations. However, most of these methods overlook the…

Information Retrieval · Computer Science 2020-09-01 Makbule Gulcin Ozsoy

Multimedia content is of predominance in the modern Web era. Investigating how users interact with multimodal items is a continuing concern within the rapid development of recommender systems. The majority of previous work focuses on…

Information Retrieval · Computer Science 2021-07-22 Jinghao Zhang , Yanqiao Zhu , Qiang Liu , Shu Wu , Shuhui Wang , Liang Wang

Sequential recommendation models user interests based on historical behaviors to provide personalized recommendation. Previous sequential recommendation algorithms primarily employ neural networks to extract features of user interests,…

Information Retrieval · Computer Science 2024-09-24 Li Li , Mingyue Cheng , Zhiding Liu , Hao Zhang , Qi Liu , Enhong Chen

Beyond user-item modeling, item-to-item relationships are increasingly used to enhance recommendation. However, common methods largely rely on co-occurrence, making them prone to item popularity bias and user attributes, which degrades…

Information Retrieval · Computer Science 2025-12-22 Jingmao Zhang , Zhiting Zhao , Yunqi Lin , Jianghong Ma , Tianjun Wei , Haijun Zhang , Xiaofeng Zhang

Massive amounts of data are the foundation of data-driven recommendation models. As an inherent nature of big data, data heterogeneity widely exists in real-world recommendation systems. It reflects the differences in the properties among…

Information Retrieval · Computer Science 2023-05-26 Zimu Wang , Jiashuo Liu , Hao Zou , Xingxuan Zhang , Yue He , Dongxu Liang , Peng Cui

Recommender systems have been applied successfully in a number of different domains, such as, entertainment, commerce, and employment. Their success lies in their ability to exploit the collective behavior of users in order to deliver…

Information Retrieval · Computer Science 2018-11-06 Virginia Tsintzou , Evaggelia Pitoura , Panayiotis Tsaparas

Diversity control is an important task to alleviate bias amplification and filter bubble problems. The desired degree of diversity may fluctuate based on users' daily moods or business strategies. However, existing methods for controlling…

Information Retrieval · Computer Science 2024-11-22 Gwangseok Han , Wonbin Kweon , Minsoo Kim , Hwanjo Yu

Modeling sequential user behaviors for future behavior prediction is crucial in improving user's information retrieval experience. Recent studies highlight the importance of incorporating contextual information to enhance prediction…

Information Retrieval · Computer Science 2025-10-01 Xu Chen , Yunmeng Shu , Yuangang Pan , Jinsong Lan , Xiaoyong Zhu , Shuai Xiao , Haojin Zhu , Ivor W. Tsang , Bo Zheng

In e-commerce platforms, the relevant recommendation is a unique scenario providing related items for a trigger item that users are interested in. However, users' preferences for the similarity and diversity of recommendation results are…

Information Retrieval · Computer Science 2023-08-22 Wei Dai , Yingmin Su , Xiaofeng Pan

Recommender systems assist users in navigating complex information spaces and focus their attention on the content most relevant to their needs. Often these systems rely on user activity or descriptions of the content. Social annotation…

Information Retrieval · Computer Science 2016-08-24 Greg Zanotti , Miller Horvath , Lucas Nunes Barbosa , Venkata Trinadh Kumar Gupta Immedisetty , Jonathan Gemmell

Recommendation systems play a pivotal role in suggesting items to users based on their preferences. However, in online platforms, these systems inevitably offer unsuitable recommendations due to limited model capacity, poor data quality, or…

Information Retrieval · Computer Science 2024-10-29 Chengyu Lai , Sheng Zhou , Zhimeng Jiang , Qiaoyu Tan , Yuanchen Bei , Jiawei Chen , Ningyu Zhang , Jiajun Bu

With the exponential increase in the amount of digital information over the internet, online shops, online music, video and image libraries, search engines and recommendation system have become the most convenient ways to find relevant…

Machine Learning · Computer Science 2017-12-21 Ayush Singhal , Pradeep Sinha , Rakesh Pant

While many production-ready and robust algorithms are available for the task of recommendation systems, many of these systems do not take the order of user's consumption into account. The order of consumption can be very useful and matters…

Information Retrieval · Computer Science 2022-05-03 Mehdi Soleiman Nejad , Meysam Varasteh , Hadi Moradi , Mohammad Amin Sadeghi

Recommender systems are widely used to help people find items that are tailored to their interests. These interests are often influenced by social networks, making it important to use social network information effectively in recommender…

Social and Information Networks · Computer Science 2023-09-06 Eltayeb Ahmed , Diana Mincu , Lauren Harrell , Katherine Heller , Subhrajit Roy

Sequential recommendation systems model dynamic preferences of users based on their historical interactions with platforms. Despite recent progress, modeling short-term and long-term behavior of users in such systems is nontrivial and…

Information Retrieval · Computer Science 2021-07-07 Mehrnaz Amjadi , Seyed Danial Mohseni Taheri , Theja Tulabandhula

Cross-Domain Sequential Recommendation (CDSR) aims to en-hance recommendation quality by transferring knowledge across domains, offering effective solutions to data sparsity and cold-start issues. However, existing methods face three major…

Information Retrieval · Computer Science 2026-04-10 Xingzi Wang , Qingtian Bian , Hui Fang

Social recommender systems have drawn a lot of attention in many online web services, because of the incorporation of social information between users in improving recommendation results. Despite the significant progress made by existing…

Information Retrieval · Computer Science 2023-03-15 Lianghao Xia , Yizhen Shao , Chao Huang , Yong Xu , Huance Xu , Jian Pei

Norm-aware recommender systems have gained increased attention, especially for diversity optimization. The recommender systems community has well-established experimentation pipelines that support reproducible evaluations by facilitating…

Information Retrieval · Computer Science 2025-08-19 Lucien Heitz , Runze Li , Oana Inel , Abraham Bernstein