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Multimodal self-supervised learning is getting more and more attention as it allows not only to train large networks without human supervision but also to search and retrieve data across various modalities. In this context, this paper…

As industrial recommender systems enter a scaling-driven regime, Transformer architectures have become increasingly attractive for scaling models towards larger capacity and longer sequence. However, existing Transformer-based…

Information Retrieval · Computer Science 2026-02-17 Xu Huang , Hao Zhang , Zhifang Fan , Yunwen Huang , Zhuoxing Wei , Zheng Chai , Jinan Ni , Yuchao Zheng , Qiwei Chen

Learning an effective outfit-level representation is critical for predicting the compatibility of items in an outfit, and retrieving complementary items for a partial outfit. We present a framework, OutfitTransformer, that uses the proposed…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Rohan Sarkar , Navaneeth Bodla , Mariya I. Vasileva , Yen-Liang Lin , Anurag Beniwal , Alan Lu , Gerard Medioni

Cross-modal retrieval between visual data and natural language description remains a long-standing challenge in multimedia. While recent image-text retrieval methods offer great promise by learning deep representations aligned across…

Large-scale industrial recommendation systems typically employ a two-stage paradigm of retrieval and ranking to handle huge amounts of information. Recent research focuses on improving the performance of retrieval model. A promising way is…

Information Retrieval · Computer Science 2025-08-21 Chengcheng Guo , Junda She , Kuo Cai , Shiyao Wang , Qigen Hu , Qiang Luo , Kun Gai , Guorui Zhou

Current multimodal sequential recommendation models are often unable to effectively explore and capture correlations among behavior sequences of users and items across different modalities, either neglecting correlations among sequence…

Information Retrieval · Computer Science 2024-07-23 Lingzi Zhang , Xin Zhou , Zhiwei Zeng , Zhiqi Shen

Ranking is a core task in recommender systems, which aims at providing an ordered list of items to users. Typically, a ranking function is learned from the labeled dataset to optimize the global performance, which produces a ranking score…

Information Retrieval · Computer Science 2019-07-24 Changhua Pei , Yi Zhang , Yongfeng Zhang , Fei Sun , Xiao Lin , Hanxiao Sun , Jian Wu , Peng Jiang , Wenwu Ou

In recent years, neural networks and other complex models have dominated recommender systems, often setting new benchmarks for state-of-the-art performance. Yet, despite these advancements, award-winning research has demonstrated that…

Information Retrieval · Computer Science 2026-04-20 Pedro R. Pires , Rafael T. Sereicikas , Gregorio F. Azevedo , Tiago A. Almeida

Multimodal recommender systems enhance personalized recommendations in e-commerce and online advertising by integrating visual, textual, and user-item interaction data. However, existing methods often overlook two critical biases: (i) modal…

Information Retrieval · Computer Science 2025-10-15 Jie Yang , Chenyang Gu , Zixuan Liu

Contemporary recommendation systems predominantly rely on ID embedding to capture latent associations among users and items. However, this approach overlooks the wealth of semantic information embedded within textual descriptions of items,…

Information Retrieval · Computer Science 2024-12-30 Jian Jia , Yipei Wang , Yan Li , Honggang Chen , Xuehan Bai , Zhaocheng Liu , Jian Liang , Quan Chen , Han Li , Peng Jiang , Kun Gai

Sequential recommendation is an important recommendation task that aims to predict the next item in a sequence. Recently, adaptations of language models, particularly Transformer-based models such as SASRec and BERT4Rec, have achieved…

Information Retrieval · Computer Science 2023-06-21 Aleksandr V. Petrov , Craig Macdonald

Deep Candidate Generation plays an important role in large-scale recommender systems. It takes user history behaviors as inputs and learns user and item latent embeddings for candidate generation. In the literature, conventional methods…

Information Retrieval · Computer Science 2022-11-24 Ningning Li , Qunwei Li , Xichen Ding , Shaohu Chen , Wenliang Zhong

A fundamental challenge for sequential recommenders is to capture the sequential patterns of users toward modeling how users transit among items. In many practical scenarios, however, there are a great number of cold-start users with only…

Information Retrieval · Computer Science 2021-07-15 Jianling Wang , Kaize Ding , James Caverlee

Sequential recommendation aims to capture users' dynamic interest and predicts the next item of users' preference. Most sequential recommendation methods use a deep neural network as sequence encoder to generate user and item…

Information Retrieval · Computer Science 2023-05-17 Hanwen Du , Huanhuan Yuan , Pengpeng Zhao , Fuzhen Zhuang , Guanfeng Liu , Lei Zhao , Victor S. Sheng

As a pivotal tool to alleviate the information overload problem, recommender systems aim to predict user's preferred items from millions of candidates by analyzing observed user-item relations. As for alleviating the sparsity and cold start…

Information Retrieval · Computer Science 2022-05-24 Yue Deng

In recent years, recommender systems have advanced rapidly, where embedding learning for users and items plays a critical role. A standard method learns a unique embedding vector for each user and item. However, such a method has two…

Artificial Intelligence · Computer Science 2023-02-13 Yizhou Chen , Guangda Huzhang , Anxiang Zeng , Qingtao Yu , Hui Sun , Heng-yi Li , Jingyi Li , Yabo Ni , Han Yu , Zhiming Zhou

Personalized size and fit recommendations bear crucial significance for any fashion e-commerce platform. Predicting the correct fit drives customer satisfaction and benefits the business by reducing costs incurred due to size-related…

Passage retrieval addresses the problem of locating relevant passages, usually from a large corpus, given a query. In practice, lexical term-matching algorithms like BM25 are popular choices for retrieval owing to their efficiency. However,…

Information Retrieval · Computer Science 2020-09-23 Davis Liang , Peng Xu , Siamak Shakeri , Cicero Nogueira dos Santos , Ramesh Nallapati , Zhiheng Huang , Bing Xiang

Session-based recommendation plays a central role in a wide spectrum of online applications, ranging from e-commerce to online advertising services. However, the majority of existing session-based recommendation techniques (e.g.,…

Information Retrieval · Computer Science 2021-10-11 Chao Huang , Jiahui Chen , Lianghao Xia , Yong Xu , Peng Dai , Yanqing Chen , Liefeng Bo , Jiashu Zhao , Jimmy Xiangji Huang

Recommendation systems have lately been popularized globally, with primary use cases in online interaction systems, with significant focus on e-commerce platforms. We have developed a machine learning-based recommendation platform, which…