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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

Visual-language models (VLMs) have recently been introduced in robotic mapping using the latent representations, i.e., embeddings, of the VLMs to represent semantics in the map. They allow moving from a limited set of human-created labels…

Robotics · Computer Science 2025-09-23 Matti Pekkanen , Tsvetomila Mihaylova , Francesco Verdoja , Ville Kyrki

Artwork recommendation is challenging because it requires understanding how users interact with highly subjective content, the complexity of the concepts embedded within the artwork, and the emotional and cognitive reflections they may…

Information Retrieval · Computer Science 2023-03-21 Bereket A. Yilma , Luis A. Leiva

Search and recommendation (S&R) are fundamental components of modern online platforms, yet effectively leveraging search behaviors to improve recommendation remains a challenging problem. User search histories often contain noisy or…

Information Retrieval · Computer Science 2025-08-07 Teng Shi , Weicong Qin , Weijie Yu , Xiao Zhang , Ming He , Jianping Fan , Jun Xu

Latent factor models for recommender systems represent users and items as low dimensional vectors. Privacy risks of such systems have previously been studied mostly in the context of recovery of personal information in the form of usage…

Information Retrieval · Computer Science 2018-12-19 Yehezkel S. Resheff , Yanai Elazar , Moni Shahar , Oren Sar Shalom

Capturing users' precise preferences is of great importance in various recommender systems (eg., e-commerce platforms), which is the basis of how to present personalized interesting product lists to individual users. In spite of significant…

Information Retrieval · Computer Science 2021-10-11 Lianghao Xia , Chao Huang , Yong Xu , Peng Dai , Bo Zhang , Liefeng Bo

In sequential recommendation, models recommend items based on user's interaction history. To this end, current models usually incorporate information such as item descriptions and user intent or preferences. User preferences are usually not…

Traditional Collaborative Filtering (CF) based methods are applied to understand the personal preferences of users/customers for items or products from the rating matrix. Usually, the rating matrix is sparse in nature. So there are some…

Information Retrieval · Computer Science 2022-10-12 Supriyo Mandal , Abyayananda Maiti

Media recommender systems aim to capture users' preferences and provide precise personalized recommendation of media content. There are two critical components in the common paradigm of modern recommender models: (1) representation…

Information Retrieval · Computer Science 2022-01-11 Yanfang Wang , Yongduo Sui , Xiang Wang , Zhenguang Liu , Xiangnan He

Interpreting the performance results of models that attempt to realize user behavior in platforms that employ recommenders is a big challenge that researchers and practitioners continue to face. Although current evaluation tools possess the…

Information Retrieval · Computer Science 2022-07-20 Wissam Al Jurdi , Jacques Bou Abdo , Jacques Demerjian , Abdallah Makhoul

Accurately modeling user preferences is vital not only for improving recommendation performance but also for enhancing transparency in recommender systems. Conventional user profiling methods, such as averaging item embeddings, often…

Information Retrieval · Computer Science 2025-05-05 Milad Sabouri , Masoud Mansoury , Kun Lin , Bamshad Mobasher

From extracting features to generating text, the outputs of large language models (LLMs) typically rely on the final layers, following the conventional wisdom that earlier layers capture only low-level cues. However, our analysis shows that…

Machine Learning · Computer Science 2025-06-17 Oscar Skean , Md Rifat Arefin , Dan Zhao , Niket Patel , Jalal Naghiyev , Yann LeCun , Ravid Shwartz-Ziv

In many contexts, creating mappings for gestural interactions can form part of an artistic process. Creators seeking a mapping that is expressive, novel, and affords them a sense of authorship may not know how to program it up in a signal…

Human-Computer Interaction · Computer Science 2021-06-17 Tim Murray-Browne , Panagiotis Tigas

Sequential recommender systems are essential for discerning user preferences from historical interactions and facilitating targeted recommendations. Recent innovations employing Large Language Models (LLMs) have advanced the field by…

Information Retrieval · Computer Science 2024-09-04 Xinyu Zhang , Linmei Hu , Luhao Zhang , Dandan Song , Heyan Huang , Liqiang Nie

Recommendation system (RS) plays significant roles in matching users information needs for Internet applications, and it usually utilizes the vanilla neural network as the backbone to handle embedding details. Recently, the large language…

Information Retrieval · Computer Science 2023-10-26 Dui Wang , Xiangyu Hou , Xiaohui Yang , Bo Zhang , Renbing Chen , Daiyue Xue

This paper proposes a new neural architecture for collaborative ranking with implicit feedback. Our model, LRML (\textit{Latent Relational Metric Learning}) is a novel metric learning approach for recommendation. More specifically, instead…

Artificial Intelligence · Computer Science 2018-02-14 Yi Tay , Anh Tuan Luu , Siu Cheung Hui

Recommender systems recommend items more accurately by analyzing users' potential interest on different brands' items. In conjunction with users' rating similarity, the presence of users' implicit feedbacks like clicking items, viewing…

Information Retrieval · Computer Science 2018-10-31 Supriyo Mandal , Abyayananda Maiti

The interactions of users and items in recommender system could be naturally modeled as a user-item bipartite graph. In recent years, we have witnessed an emerging research effort in exploring user-item graph for collaborative filtering…

Machine Learning · Computer Science 2019-11-26 Xiao Wang , Ruijia Wang , Chuan Shi , Guojie Song , Qingyong Li

When tracking user-specific online activities, each user's preference is revealed in the form of choices and comparisons. For example, a user's purchase history is a record of her choices, i.e. which item was chosen among a subset of…

Machine Learning · Statistics 2019-01-01 Sahand Negahban , Sewoong Oh , Kiran K. Thekumparampil , Jiaming Xu

A prevalent practice in recommender systems consists in averaging item embeddings to represent users or higher-level concepts in the same embedding space. This paper investigates the relevance of such a practice. For this purpose, we…

Information Retrieval · Computer Science 2023-08-31 Walid Bendada , Guillaume Salha-Galvan , Romain Hennequin , Thomas Bouabça , Tristan Cazenave