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Multi-modal 3D understanding is a fundamental task in computer vision. Previous multi-modal fusion methods typically employ a single, dense fusion network, struggling to handle the significant heterogeneity and complexity across modalities,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Yu Li , Yuenan Hou , Yingmei Wei , Xinge Zhu , Yuexin Ma , Wenqi Shao , Yanming Guo

Mixture-of-Experts (MoE) activates only a subset of experts during inference, allowing the model to maintain low inference FLOPs and latency even as the parameter count scales up. However, since MoE dynamically selects the experts, all the…

Machine Learning · Computer Science 2025-05-27 Shibo Jie , Yehui Tang , Kai Han , Yitong Li , Duyu Tang , Zhi-Hong Deng , Yunhe Wang

Ride-hailing platforms face the challenge of balancing passenger waiting times with overall system efficiency under highly uncertain supply-demand conditions. Adaptive delayed matching, which controls the holding intervals for batched sets…

Machine Learning · Computer Science 2026-05-05 Yuhan Tang , Kangxin Cui , Jung Ho Park , Yibo Zhao , Xuan Jiang , Haoze He , Jiangbo Yu , Haris Koutsopoulos , Jinhua Zhao

Sequential recommendation is an extensively explored approach to capturing users' evolving preferences based on past interactions, aimed at predicting their next likely choice. Despite significant advancements in this domain, including…

Information Retrieval · Computer Science 2025-04-15 Kowei Shih , Yi Han , Li Tan

Class-incremental learning (CIL) requires deep learning models to continuously acquire new knowledge from streaming data while preserving previously learned information. Recently, CIL based on pre-trained models (PTMs) has achieved…

Machine Learning · Computer Science 2025-06-16 Linjie Li , Zhenyu Wu , Yang Ji

Multimodal recommendation aims to integrate collaborative signals with heterogeneous content such as visual and textual information, but remains challenged by modality-specific noise, semantic inconsistency, and unstable propagation over…

Information Retrieval · Computer Science 2026-02-02 Wei Yang , Rui Zhong , Yiqun Chen , Chi Lu , Peng Jiang

Recent advancements in general-purpose or domain-specific multimodal large language models (LLMs) have witnessed remarkable progress for medical decision-making. However, they are designated for specific classification or generative tasks,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Songtao Jiang , Tuo Zheng , Yan Zhang , Yeying Jin , Li Yuan , Zuozhu Liu

The mixture of experts (MoE) model is a sparse variant of large language models (LLMs), designed to hold a better balance between intelligent capability and computational overhead. Despite its benefits, MoE is still too expensive to deploy…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-23 Haodong Wang , Qihua Zhou , Zicong Hong , Song Guo

Sequential Recommendation (SR) aims to predict the next interaction of a user based on their behavior sequence, where complementary relations often provide essential signals for predicting the next item. However, mainstream models relying…

Information Retrieval · Computer Science 2026-04-22 Qian Zhang , Lech Szymanski , Haibo Zhang , Jeremiah D. Deng

We propose Preferential MoE, a novel human-ML mixture-of-experts model that augments human expertise in decision making with a data-based classifier only when necessary for predictive performance. Our model exhibits an interpretable gating…

Machine Learning · Computer Science 2021-01-15 Melanie F. Pradier , Javier Zazo , Sonali Parbhoo , Roy H. Perlis , Maurizio Zazzi , Finale Doshi-Velez

Providing personalized recommendations in an environment where items exhibit ephemerality and temporal relevancy (e.g. in social media) presents a few unique challenges: (1) inductively understanding ephemeral appeal for items in a setting…

Social and Information Networks · Computer Science 2022-10-31 Frank Portman , Stephen Ragain , Ahmed El-Kishky

Comprehensively and flexibly capturing the complex spatio-temporal dependencies of human motion is critical for multi-person motion prediction. Existing methods grapple with two primary limitations: i) Inflexible spatiotemporal…

Computer Vision and Pattern Recognition · Computer Science 2025-12-29 Zheng Yin , Chengjian Li , Xiangbo Shu , Meiqi Cao , Rui Yan , Jinhui Tang

There is increasing interest in the use of multimodal data in various web applications, such as digital advertising and e-commerce. Typical methods for extracting important information from multimodal data rely on a mid-fusion architecture…

Multimedia · Computer Science 2022-11-23 Shunsuke Kitada , Yuki Iwazaki , Riku Togashi , Hitoshi Iyatomi

Session-based Recommendation (SBR) aims to predict the next item a user will likely engage with, using their interaction sequence within an anonymous session. Existing SBR models often focus only on single-session information, ignoring…

Information Retrieval · Computer Science 2025-07-08 Jinpeng Chen , Jianxiang He , Huan Li , Senzhang Wang , Yuan Cao , Kaimin Wei , Zhenye Yang , Ye Ji

The performance of the reward model (RM) is a critical factor in improving the effectiveness of the large language model (LLM) during alignment fine-tuning. There remain two challenges in RM training: 1) training the same RM using various…

Computation and Language · Computer Science 2024-04-30 Shanghaoran Quan

Multi-modal recommendation has gained traction as items possess rich attributes like text and images. Semantic ID-based approaches effectively discretize this information into compact tokens. However, two challenges persist: (1) Suboptimal…

Artificial Intelligence · Computer Science 2026-05-27 Pingjun Pan , Tingting Zhou , Peiyao Lu , Tingting Fei , Hongxiang Chen , Chuanjiang Luo

Mixtures of Experts (MoEs) have gained prominence in (self-)supervised learning due to their enhanced inference efficiency, adaptability to distributed training, and modularity. Previous research has illustrated that MoEs can significantly…

Machine Learning · Computer Science 2024-06-27 Timon Willi , Johan Obando-Ceron , Jakob Foerster , Karolina Dziugaite , Pablo Samuel Castro

Modern Sequential Recommendation (SR) models commonly utilize modality features to represent items, motivated in large part by recent advancements in language and vision modeling. To do so, several works completely replace ID embeddings…

Machine Learning · Computer Science 2026-01-06 Liam Collins , Bhuvesh Kumar , Clark Mingxuan Ju , Tong Zhao , Donald Loveland , Leonardo Neves , Neil Shah

Multimodal recommender systems (MRS) improve recommendation performance by integrating complementary semantic information from multiple modalities. However, the assumption of complete multimodality rarely holds in practice due to missing…

Information Retrieval · Computer Science 2025-10-16 Huilin Chen , Miaomiao Cai , Fan Liu , Zhiyong Cheng , Richang Hong , Meng Wang

Due to the notorious modality imbalance problem, multimodal learning (MML) leads to the phenomenon of optimization imbalance, thus struggling to achieve satisfactory performance. Recently, some representative methods have been proposed to…

Machine Learning · Computer Science 2024-07-08 Qing-Yuan Jiang , Zhouyang Chi , Yang Yang