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The Mixture of Experts (MoE) for language models has been proven effective in augmenting the capacity of models by dynamically routing each input token to a specific subset of experts for processing. Despite the success, most existing…

Machine Learning · Computer Science 2024-07-26 Hao Zhao , Zihan Qiu , Huijia Wu , Zili Wang , Zhaofeng He , Jie Fu

Modern recommender systems face critical challenges in handling information overload while addressing the inherent limitations of multimodal representation learning. Existing methods suffer from three fundamental limitations: (1) restricted…

Information Retrieval · Computer Science 2025-08-15 Zheyu Chen , Jinfeng Xu , Hewei Wang , Shuo Yang , Zitong Wan , Haibo Hu

Mixture-of-Experts (MOE) has recently become the de facto standard in Multi-domain recommendation (MDR) due to its powerful expressive ability. However, such MOE-based method typically employs all experts for each instance, leading to…

Machine Learning · Computer Science 2024-11-12 Kuiyao Dong , Xingyu Lou , Feng Liu , Ruian Wang , Wenyi Yu , Ping Wang , Jun Wang

Multi-modal recommendation systems aim to enhance performance by integrating an item's content features across various modalities with user behavior data. Effective utilization of features from different modalities requires addressing two…

Information Retrieval · Computer Science 2025-02-27 Hang Zhou , Yucheng Wang , Huijing Zhan

From clinical healthcare to daily living, continuous sensor monitoring across multiple modalities has shown great promise for real-world intelligent decision-making but also faces various challenges. In this work, we introduce MAESTRO, a…

Machine Learning · Computer Science 2025-10-01 Payal Mohapatra , Yueyuan Sui , Akash Pandey , Stephen Xia , Qi Zhu

We study the problem of inferring substitutable and complementary items, which underpins applications such as alternative and follow-up purchase suggestions. Existing approaches typically learn from behavior-derived item-item associations…

Information Retrieval · Computer Science 2026-05-05 Junting Wang , Chenghuan Guo , Jiao Yang , Yanhui Guo , Hari Sundaram , Yan Gao

Variational AutoEncoder (VAE) for Sequential Recommendation (SR), which learns a continuous distribution for each user-item interaction sequence rather than a determinate embedding, is robust against data deficiency and achieves significant…

Information Retrieval · Computer Science 2025-02-25 Beibei Li , Tao Xiang , Beihong Jin , Yiyuan Zheng , Rui Zhao

Electronic health record (EHR) data is sparse and irregular as it is recorded at irregular time intervals, and different clinical variables are measured at each observation point. In this work, we propose a multi-view features integration…

Machine Learning · Computer Science 2021-01-27 Yurim Lee , Eunji Jun , Heung-Il Suk

Large language models (LLMs) have recently demonstrated strong potential for sequential recommendation. However, current LLM-based approaches face critical limitations in modeling users' long-term and diverse interests. First, due to…

Information Retrieval · Computer Science 2025-10-30 Jingyi Zhou , Cheng Chen , Kai Zuo , Manjie Xu , Zhendong Fu , Yibo Chen , Xu Tang , Yao Hu

Emotion Recognition in Conversations (ERC) presents unique challenges, requiring models to capture the temporal flow of multi-turn dialogues and to effectively integrate cues from multiple modalities. We propose Mixture of Speech-Text…

Computation and Language · Computer Science 2026-02-27 Soumya Dutta , Smruthi Balaji , Sriram Ganapathy

With the rapid development of mobile Internet and big data, a huge amount of data is generated in the network, but the data that users are really interested in a very small portion. To extract the information that users are interested in…

Information Retrieval · Computer Science 2022-05-09 Bo Liu

Multimodal Sentiment Analysis (MSA) is an important research area that aims to understand and recognize human sentiment through multiple modalities. The complementary information provided by multimodal fusion promotes better sentiment…

Generative Recommenders (GRs), exemplified by the Hierarchical Sequential Transduction Unit (HSTU), have emerged as a powerful paradigm for modeling long user interaction sequences. However, we observe that their "flat-sequence" assumption…

Information Retrieval · Computer Science 2026-03-03 Zerui Chen , Heng Chang , Tianying Liu , Chuantian Zhou , Yi Cao , Jiandong Ding , Ming Liu , Bing Qin

Mixture-of-Experts (MoE) has emerged as an effective approach to reduce the computational overhead of Transformer architectures by sparsely activating a subset of parameters for each token while preserving high model capacity. This paradigm…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Dohwan Ko , Jinyoung Park , Seoung Choi , Sanghyeok Lee , Seohyun Lee , Hyunwoo J. Kim

To meet the growing demand for smarter, faster, and more efficient embodied AI solutions, we introduce a novel Mixture-of-Expert (MoE) method that significantly boosts reasoning and learning efficiency for embodied autonomous systems.…

Artificial Intelligence · Computer Science 2025-08-14 Lu Xu , Jiaqian Yu , Xiongfeng Peng , Yiwei Chen , Weiming Li , Jaewook Yoo , Sunghyun Chunag , Dongwook Lee , Daehyun Ji , Chao Zhang

Low-Rank Adaptation (LoRA) is widely used for adapting large language models (LLMs) to specific domains due to its efficiency and modularity. Meanwhile, vanilla LoRA struggles with task conflicts in multi-task scenarios. Recent works adopt…

Machine Learning · Computer Science 2025-06-23 Ziyu Zhao , Yixiao Zhou , Zhi Zhang , Didi Zhu , Tao Shen , Zexi Li , Jinluan Yang , Xuwu Wang , Jing Su , Kun Kuang , Zhongyu Wei , Fei Wu , Yu Cheng

In this paper, we introduce a novel dynamic expert selection framework for Mixture of Experts (MoE) models, aiming to enhance computational efficiency and model performance by adjusting the number of activated experts based on input…

Machine Learning · Computer Science 2024-03-13 Quzhe Huang , Zhenwei An , Nan Zhuang , Mingxu Tao , Chen Zhang , Yang Jin , Kun Xu , Kun Xu , Liwei Chen , Songfang Huang , Yansong Feng

Session-based Recommendation (SR) aims to predict the next item for recommendation based on previously recorded sessions of user interaction. The majority of existing approaches to SR focus on modeling the transition patterns of items. In…

Information Retrieval · Computer Science 2022-04-06 Jiahao Yuan , Wendi Ji , Dell Zhang , Jinwei Pan , Xiaoling Wang

Multimodal recommendation aims to recommend user-preferred candidates based on her/his historically interacted items and associated multimodal information. Previous studies commonly employ an embed-and-retrieve paradigm: learning user and…

Information Retrieval · Computer Science 2026-01-15 Han Liu , Yinwei Wei , Xuemeng Song , Weili Guan , Yuan-Fang Li , Liqiang Nie

Multi-modal named entity recognition (NER) and relation extraction (RE) aim to leverage relevant image information to improve the performance of NER and RE. Most existing efforts largely focused on directly extracting potentially useful…

Computation and Language · Computer Science 2022-12-06 Xinyu Wang , Jiong Cai , Yong Jiang , Pengjun Xie , Kewei Tu , Wei Lu