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Humans are skilled in reading the interlocutor's emotion from multimodal signals, including spoken words, simultaneous speech, and facial expressions. It is still a challenge to effectively decode emotions from the complex interactions of…

Machine Learning · Computer Science 2022-12-20 Feng Qiu , Chengyang Xie , Yu Ding , Wanzeng Kong

Recommender systems traditionally represent items using unique identifiers (ItemIDs), but this approach struggles with large, dynamic item corpora and sparse long-tail data, limiting scalability and generalization. Semantic IDs, derived…

Information Retrieval · Computer Science 2026-03-03 Yi Xu , Moyu Zhang , Chenxuan Li , Zhihao Liao , Haibo Xing , Hao Deng , Jinxin Hu , Yu Zhang , Xiaoyi Zeng , Jing Zhang

We aim to develop a fundamental understanding of modality collapse, a recently observed empirical phenomenon wherein models trained for multimodal fusion tend to rely only on a subset of the modalities, ignoring the rest. We show that…

Machine Learning · Computer Science 2025-08-18 Abhra Chaudhuri , Anjan Dutta , Tu Bui , Serban Georgescu

Multimodal recommendation focuses primarily on effectively exploiting both behavioral and multimodal information for the recommendation task. However, most existing models suffer from the following issues when fusing information from two…

Information Retrieval · Computer Science 2024-09-10 Kangning Zhang , Yingjie Qin , Jiarui Jin , Yifan Liu , Ruilong Su , Weinan Zhang , Yong Yu

Multimodal sentiment analysis (MSA) identifies individuals' sentiment states in videos by integrating visual, audio, and text modalities. Despite progress in existing methods, the inherent modality heterogeneity limits the effective capture…

Machine Learning · Computer Science 2025-12-19 Shanmin Wang , Chengguang Liu , Qingshan Liu

Multimodal Sentiment Analysis (MSA) aims to mine sentiment information from text, visual, and acoustic modalities. Previous works have focused on representation learning and feature fusion strategies. However, most of these efforts ignored…

Multimedia · Computer Science 2023-07-26 Yuxuan Lei , Dingkang Yang , Mingcheng Li , Shunli Wang , Jiawei Chen , Lihua Zhang

The data-driven approach to robot control has been gathering pace rapidly, yet generalization to unseen task domains remains a critical challenge. We argue that the key to generalization is representations that are (i) rich enough to…

Robotics · Computer Science 2023-12-05 Bo Ai , Zhanxin Wu , David Hsu

This paper addresses the challenge of jointly modeling user intent diversity and behavioral uncertainty in recommender systems. A unified representation learning framework is proposed. The framework builds a multi-intent representation…

Information Retrieval · Computer Science 2025-09-08 Wei Xu , Jiasen Zheng , Junjiang Lin , Mingxuan Han , Junliang Du

Modeling time series data remains a pervasive issue as the temporal dimension is inherent to numerous domains. Despite significant strides in time series forecasting, high noise-to-signal ratio, non-normality, non-stationarity, and lack of…

Machine Learning · Computer Science 2024-08-13 Insu Choi , Woosung Koh , Gimin Kang , Yuntae Jang , Woo Chang Kim

Multi-modal sentiment analysis plays an important role for providing better interactive experiences to users. Each modality in multi-modal data can provide different viewpoints or reveal unique aspects of a user's emotional state. In this…

Machine Learning · Computer Science 2021-06-23 Debapriya Banerjee , Fotios Lygerakis , Fillia Makedon

In recent years, discriminative self-supervised methods have made significant strides in advancing various visual tasks. The central idea of learning a data encoder that is robust to data distortions/augmentations is straightforward yet…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Yuewei Yang , Hai Li , Yiran Chen

Emotion recognition plays a vital role in enhancing human-computer interaction. In this study, we tackle the MER-SEMI challenge of the MER2025 competition by proposing a novel multimodal emotion recognition framework. To address the issue…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Juewen Hu , Yexin Li , Jiulin Li , Shuo Chen , Pring Wong

We propose methods to strengthen the invariance properties of representations obtained by contrastive learning. While existing approaches implicitly induce a degree of invariance as representations are learned, we look to more directly…

Machine Learning · Computer Science 2021-03-23 Adam Foster , Rattana Pukdee , Tom Rainforth

Due to the complex nature of human emotions and the diversity of emotion representation methods in humans, emotion recognition is a challenging field. In this research, three input modalities, namely text, audio (speech), and video, are…

Artificial Intelligence · Computer Science 2024-02-13 Minoo Shayaninasab , Bagher Babaali

Automatic emotion recognition is an active research topic with wide range of applications. Due to the high manual annotation cost and inevitable label ambiguity, the development of emotion recognition dataset is limited in both scale and…

Audio and Speech Processing · Electrical Eng. & Systems 2020-09-08 Jingjun Liang , Ruichen Li , Qin Jin

Multimodal Large Language Models demonstrate strong performance on multimodal benchmarks, yet often exhibit poor robustness when exposed to spurious modality interference, such as irrelevant text in vision understanding, or irrelevant…

Machine Learning · Computer Science 2026-01-30 Rui Cai , Bangzheng Li , Xiaofei Wen , Muhao Chen , Zhe Zhao

Humans are sophisticated at reading interlocutors' emotions from multimodal signals, such as speech contents, voice tones and facial expressions. However, machines might struggle to understand various emotions due to the difficulty of…

Artificial Intelligence · Computer Science 2022-12-21 Feng Qiu , Wanzeng Kong , Yu Ding

Effectively integrating diverse sensory modalities is crucial for robotic manipulation. However, the typical approach of feature concatenation is often suboptimal: dominant modalities such as vision can overwhelm sparse but critical signals…

Lack of large, well-annotated emotional speech corpora continues to limit the performance and robustness of speech emotion recognition (SER), particularly as models grow more complex and the demand for multimodal systems increases. While…

Sound · Computer Science 2026-02-13 Chung-Soo Ahn , Rajib Rana , Sunil Sivadas , Carlos Busso , Jagath C. Rajapakse

Variational Autoencoders for multimodal data hold promise for many tasks in data analysis, such as representation learning, conditional generation, and imputation. Current architectures either share the encoder output, decoder input, or…