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Egocentric action recognition enables robots to facilitate human-robot interactions and monitor task progress. Existing methods often rely solely on RGB videos, although additional modalities, such as audio, can improve accuracy under…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Maria Santos-Villafranca , Dustin Carrión-Ojeda , Alejandro Perez-Yus , Jesus Bermudez-Cameo , Jose J. Guerrero , Simone Schaub-Meyer

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

Skill composition is the ability to combine previously learned skills to solve new tasks. As neural networks acquire increasingly complex skills during their pretraining, it is not clear how successfully they can compose them. In this…

Computation and Language · Computer Science 2026-03-10 Paula Ontalvilla , Aitor Ormazabal , Gorka Azkune

Acquiring valuable data from the rapidly expanding information on the internet has become a significant concern, and recommender systems have emerged as a widely used and effective tool for helping users discover items of interest. The…

Information Retrieval · Computer Science 2025-02-25 Jinfeng Xu , Zheyu Chen , Shuo Yang , Jinze Li , Wei Wang , Xiping Hu , Steven Hoi , Edith Ngai

The problem of missing modalities is both critical and non-trivial to be handled in multi-modal models. It is common for multi-modal tasks that certain modalities contribute more compared to other modalities, and if those important…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Hu Wang , Congbo Ma , Jianpeng Zhang , Yuan Zhang , Jodie Avery , Louise Hull , Gustavo Carneiro

The online emergence of multi-modal sharing platforms (eg, TikTok, Youtube) is powering personalized recommender systems to incorporate various modalities (eg, visual, textual and acoustic) into the latent user representations. While…

Information Retrieval · Computer Science 2023-07-19 Wei Wei , Chao Huang , Lianghao Xia , Chuxu Zhang

Learning from multiple modalities often suffers from imbalance, where information-rich modalities dominate optimization while weaker or partially missing modalities contribute less. This imbalance becomes severe in realistic settings with…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Phuong-Anh Nguyen , Tien Anh Pham , Duc-Trong Le , Cam-Van Thi Nguyen

Multimodal learning, which integrates data from diverse sensory modes, plays a pivotal role in artificial intelligence. However, existing multimodal learning methods often struggle with challenges where some modalities appear more dominant…

Machine Learning · Computer Science 2024-04-02 Xiaohui Zhang , Jaehong Yoon , Mohit Bansal , Huaxiu Yao

Multimodal learning systems often encounter challenges related to modality imbalance, where a dominant modality may overshadow others, thereby hindering the learning of weak modalities. Conventional approaches often force weak modalities to…

Machine Learning · Computer Science 2025-10-27 Baoquan Gong , Xiyuan Gao , Pengfei Zhu , Qinghua Hu , Bing Cao

Current RGBT tracking research relies on the complete multi-modal input, but modal information might miss due to some factors such as thermal sensor self-calibration and data transmission error, called modality-missing challenge in this…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Andong Lu , Jiacong Zhao , Chenglong Li , Jin Tang , Bin Luo

Multimodal learning is susceptible to modality missing, which poses a major obstacle for its practical applications and, thus, invigorates increasing research interest. In this paper, we investigate two challenging problems: 1) when…

Machine Learning · Computer Science 2023-12-19 Jun Sun , Xinxin Zhang , Shoukang Han , Yu-ping Ruan , Taihao Li

Personalized recommendation serves as a ubiquitous channel for users to discover information tailored to their interests. However, traditional recommendation models primarily rely on unique IDs and categorical features for user-item…

Information Retrieval · Computer Science 2024-07-04 Qijiong Liu , Jieming Zhu , Yanting Yang , Quanyu Dai , Zhaocheng Du , Xiao-Ming Wu , Zhou Zhao , Rui Zhang , Zhenhua Dong

Missing modalities present a fundamental challenge in multimodal models, often causing catastrophic performance degradation. Our observations suggest that this fragility stems from an imbalanced learning process, where the model develops an…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Siqi Lu , Wanying Xu , Yongbin Zheng , Wenting Luan , Peng Sun , Jianhang Yao

Continual learning is essential for adapting models to new tasks while retaining previously acquired knowledge. While existing approaches predominantly focus on uni-modal data, multi-modal learning offers substantial benefits by utilizing…

Machine Learning · Computer Science 2025-11-11 Evelyn Chee , Wynne Hsu , Mong Li Lee

The success of recommender systems in modern online platforms is inseparable from the accurate capture of users' personal tastes. In everyday life, large amounts of user feedback data are created along with user-item online interactions in…

Machine Learning · Computer Science 2019-06-25 Xiao Zhou , Danyang Liu , Jianxun Lian , Xing Xie

Recently, multimodal recommendations (MMR) have gained increasing attention for alleviating the data sparsity problem of traditional recommender systems by incorporating modality-based representations. Although MMR exhibits notable…

Information Retrieval · Computer Science 2025-06-12 Weixin Chen , Li Chen , Yongxin Ni , Yuhan Zhao

Recommendation systems have become popular and effective tools to help users discover their interesting items by modeling the user preference and item property based on implicit interactions (e.g., purchasing and clicking). Humans perceive…

Information Retrieval · Computer Science 2023-02-10 Hongyu Zhou , Xin Zhou , Zhiwei Zeng , Lingzi Zhang , Zhiqi Shen

Utilizing the sensor characteristics of the audio, visible camera, and thermal camera, the robustness of person recognition can be enhanced. Existing multimodal person recognition frameworks are primarily formulated assuming that multimodal…

Multimedia · Computer Science 2022-10-25 Vijay John , Yasutomo Kawanishi

Multi-modal recommender systems (MMRS) have gained significant attention due to their ability to leverage information from various modalities to enhance recommendation quality. However, existing negative sampling techniques often struggle…

Information Retrieval · Computer Science 2025-08-22 Yanbiao Ji , Dan Luo , Chang Liu , Shaokai Wu , Jing Tong , Qicheng He , Deyi Ji , Hongtao Lu , Yue Ding

An increasing amount of digital music is being published daily. Music streaming services often ingest all available music, but this poses a challenge: how to recommend new artists for which prior knowledge is scarce? In this work we aim to…

Information Retrieval · Computer Science 2017-07-25 Sergio Oramas , Oriol Nieto , Mohamed Sordo , Xavier Serra