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Collaborative filtering is the de facto standard for analyzing users' activities and building recommendation systems for items. In this work we develop Sliced Anti-symmetric Decomposition (SAD), a new model for collaborative filtering based…

Information Retrieval · Computer Science 2023-07-11 Shiwen Zhao , Charles Crissman , Guillermo R Sapiro

Cloth-changing person re-identification (CC-ReID) aims to match individuals across surveillance cameras despite variations in clothing. Existing methods typically mitigate the impact of clothing changes or enhance identity (ID)-relevant…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Xiyu Han , Xian Zhong , Wenxin Huang , Xuemei Jia , Xiaohan Yu , Alex Chichung Kot

Generative recommendation systems have achieved significant advances by leveraging semantic IDs to represent items. However, existing approaches that tokenize each modality independently face two critical limitations: (1) redundancy across…

Information Retrieval · Computer Science 2026-01-14 Haven Kim , Yupeng Hou , Julian McAuley

As one of the solutions to the decentralized partially observable Markov decision process (Dec-POMDP) problems, the value decomposition method has achieved significant results recently. However, most value decomposition methods require the…

Multiagent Systems · Computer Science 2021-12-21 Zhiwei Xu , Yunpeng Bai , Dapeng Li , Bin Zhang , Guoliang Fan

Sequential recommendation (SR), which encodes user activity to predict the next action, has emerged as a widely adopted strategy in developing commercial personalized recommendation systems. A critical component of modern SR models is the…

Information Retrieval · Computer Science 2025-02-25 Jun Yuan , Guohao Cai , Zhenhua Dong

The core of cross-modal matching is to accurately measure the similarity between different modalities in a unified representation space. However, compared to textual descriptions of a certain perspective, the visual modality has more…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Wenzhang Wei , Zhipeng Gui , Changguang Wu , Anqi Zhao , Dehua Peng , Huayi Wu

Vector-Quantized Variational Autoencoders (VQ-VAE)[1] provide an unsupervised model for learning discrete representations by combining vector quantization and autoencoders. In this paper, we study the use of VQ-VAE for representation…

Image and Video Processing · Electrical Eng. & Systems 2019-03-05 Hanwei Wu , Markus Flierl

Real world re-identfication (ReID) algorithms aim to map new observations of an object to previously recorded instances. These systems are often constrained by quantity and size of the stored embeddings. To combat this scaling problem, we…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Luke McDermott

Recent advances in generative recommendation have leveraged pretrained LLMs by formulating sequential recommendation as autoregressive generation over a unified token space comprising language tokens and itemic identifiers, where each item…

Information Retrieval · Computer Science 2026-03-25 Yingzhi He , Yan Sun , Junfei Tan , Yuxin Chen , Xiaoyu Kong , Chunxu Shen , Xiang Wang , An Zhang , Tat-Seng Chua

Transformer-based sequential recommenders, such as SASRec or BERT4Rec, typically rely solely on learned item ID embeddings, making them vulnerable to the item cold-start problem, particularly in environments with dynamic item catalogs.…

Information Retrieval · Computer Science 2025-08-27 Jan Malte Lichtenberg , Antonio De Candia , Matteo Ruffini

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

Recently, the generality of natural language text has been leveraged to develop transferable recommender systems. The basic idea is to employ pre-trained language models~(PLM) to encode item text into item representations. Despite the…

Information Retrieval · Computer Science 2023-02-14 Yupeng Hou , Zhankui He , Julian McAuley , Wayne Xin Zhao

Set-based person re-identification (SReID) is a matching problem that aims to verify whether two sets are of the same identity (ID). Existing SReID models typically generate a feature representation per image and aggregate them to represent…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Xinshao Wang , Elyor Kodirov , Yang Hua , Neil M. Robertson

Generative recommendation has emerged as a scalable alternative to traditional retrieve-and-rank pipelines by operating in a compact token space. However, existing methods mainly rely on discrete code-level supervision, which leads to…

Information Retrieval · Computer Science 2026-03-03 Ziqi Xue , Dingxian Wang , Yimeng Bai , Shuai Zhu , Jialei Li , Xiaoyan Zhao , Frank Yang , Andrew Rabinovich , Yang Zhang , Pablo N. Mendes

Question answering (QA) models are well-known to exploit data bias, e.g., the language prior in visual QA and the position bias in reading comprehension. Recent debiasing methods achieve good out-of-distribution (OOD) generalizability with…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Yulei Niu , Hanwang Zhang

With the rise of modern search and recommendation platforms, insufficient collaborative information of cold-start items exacerbates the Matthew effect of existing platform items, challenging platform diversity and becoming a longstanding…

Information Retrieval · Computer Science 2026-01-16 Qihang Zhao , Zhongbo Sun , Xiaoyang Zheng , Xian Guo , Siyuan Wang , Zihan Liang , Mingcan Peng , Ben Chen , Chenyi Lei

Deep learning has revolutionized many industries by enabling models to automatically learn complex patterns from raw data, reducing dependence on manual feature engineering. However, deep learning algorithms are sensitive to input data, and…

Machine Learning · Computer Science 2025-07-21 Mert Sehri , Zehui Hua , Francisco de Assis Boldt , Patrick Dumond

We present SEED (Semantic Evaluation for Visual Brain Decoding), a novel metric for evaluating the semantic decoding performance of visual brain decoding models. It integrates three complementary metrics, each capturing a different aspect…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Juhyeon Park , Peter Yongho Kim , Jiook Cha , Shinjae Yoo , Taesup Moon

Recent advances in computer vision and neural networks have made it possible for more surveillance videos to be automatically searched and analyzed by algorithms rather than humans. This happened in parallel with advances in edge computing…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-06-03 Tarek Elgamal , Shu Shi , Varun Gupta , Rittwik Jana , Klara Nahrstedt

Modern large-scale recommendation systems rely heavily on user interaction history sequences to enhance the model performance. The advent of large language models and sequential modeling techniques, particularly transformer-like…

Information Retrieval · Computer Science 2026-03-27 Zhimin Chen , Chenyu Zhao , Ka Chun Mo , Yunjiang Jiang , Jane H. Lee , Khushhall Chandra Mahajan , Ning Jiang , Kai Ren , Jinhui Li , Wen-Yun Yang