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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

Semantic segmentation is a challenging task that needs to handle large scale variations, deformations and different viewpoints. In this paper, we develop a novel network named Gated Path Selection Network (GPSNet), which aims to learn…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Qichuan Geng , Hong Zhang , Xiaojuan Qi , Ruigang Yang , Zhong Zhou , Gao Huang

The growth of recommender systems (RecSys) is driven by digitization and the need for personalized content in areas such as e-commerce and video streaming. The content in these systems often changes rapidly and therefore they constantly…

Information Retrieval · Computer Science 2024-11-15 Shiyu Wang , Hao Ding , Yupeng Gu , Sergul Aydore , Kousha Kalantari , Branislav Kveton

Multimedia content is of predominance in the modern Web era. Investigating how users interact with multimodal items is a continuing concern within the rapid development of recommender systems. The majority of previous work focuses on…

Information Retrieval · Computer Science 2021-07-22 Jinghao Zhang , Yanqiao Zhu , Qiang Liu , Shu Wu , Shuhui Wang , Liang Wang

Event coreference resolution is an important research problem with many applications. Despite the recent remarkable success of pretrained language models, we argue that it is still highly beneficial to utilize symbolic features for the…

Computation and Language · Computer Science 2021-04-06 Tuan Lai , Heng Ji , Trung Bui , Quan Hung Tran , Franck Dernoncourt , Walter Chang

Leveraging long-term user behavioral patterns is a key trajectory for enhancing the accuracy of modern recommender systems. While generative recommender systems have emerged as a transformative paradigm, they face hurdles in effectively…

Information Retrieval · Computer Science 2026-02-06 Shiteng Cao , Junda She , Ji Liu , Bin Zeng , Chengcheng Guo , Kuo Cai , Qiang Luo , Ruiming Tang , Han Li , Kun Gai , Zhiheng Li , Cheng Yang

Incorporating item-side information, such as category and brand, into sequential recommendation is a well-established and effective approach for improving performance. However, despite significant advancements, current models are generally…

Information Retrieval · Computer Science 2026-01-01 Jie Luo , Wenyu Zhang , Xinming Zhang , Yuan Fang

Feature attribution is central to diagnosing and trusting deep neural networks, and Integrated Gradients (IG) is widely used due to its axiomatic properties. However, IG can yield unreliable explanations when the integration path between a…

Machine Learning · Computer Science 2026-05-19 Soyeon Kim , Seongwoo Lim , Kyowoon Lee , Jaesik Choi

Conventional Sequential Recommender Systems (SRS) typically assign unique hash IDs (HID) to construct item embeddings, which mainly capture collaborative signals from historical user-item interactions. However, such embeddings are…

Information Retrieval · Computer Science 2026-05-29 Ziwei Liu , Yejing Wang , Wanyu Wang , Wang Zejian , Qidong Liu , Zijian Zhang , Chong Chen , Wei Huang , Xiangyu Zhao

Structured representation of product information is a major bottleneck for the efficiency of e-commerce platforms, especially in second-hand ecommerce platforms. Currently, most product information are organized based on manually curated…

Information Retrieval · Computer Science 2025-09-30 Haiyang Yang , Qinye Xie , Qingheng Zhang , Liyu Chen , Huike Zou , Chengbao Lian , Shuguang Han , Fei Huang , Jufeng Chen , Bo Zheng

Modern Intrusion Detection Systems (IDS) face severe challenges due to heterogeneous network traffic, evolving cyber threats, and pronounced data imbalance between benign and attack flows. While generative models have shown promise in data…

Machine Learning · Computer Science 2025-12-04 Mahdi Arab Loodaricheh , Mohammad Hossein Manshaei , Anita Raja

Recommender systems often struggle with data sparsity and cold-start scenarios, limiting their ability to provide accurate suggestions for new or infrequent users. This paper presents a Graph Attention Network (GAT) based Collaborative…

Information Retrieval · Computer Science 2025-10-31 Danial Ebrat , Sepideh Ahmadian , Luis Rueda

Despite superior training outcomes, adaptive optimization methods such as Adam, Adagrad or RMSprop have been found to generalize poorly compared to Stochastic gradient descent (SGD). These methods tend to perform well in the initial portion…

Machine Learning · Computer Science 2017-12-21 Nitish Shirish Keskar , Richard Socher

Stochastic gradient descent (SGD) is a powerful optimization technique that is particularly useful in online learning scenarios. Its convergence analysis is relatively well understood under the assumption that the data samples are…

Machine Learning · Computer Science 2024-10-03 Ethan Che , Jing Dong , Xin T. Tong

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

Video salient object detection (VSOD) aims to locate and segment the most attractive object by exploiting both spatial cues and temporal cues hidden in video sequences. However, spatial and temporal cues are often unreliable in real-world…

Computer Vision and Pattern Recognition · Computer Science 2021-05-17 Peijia Chen , Jianhuang Lai , Guangcong Wang , Huajun Zhou

Graph attention networks learn neighbor importance through data-dependent coefficients, but standard layers lack explicit control over unreliable feature dimensions and use fixed sharpness of attention coefficient distributions. This paper…

Machine Learning · Computer Science 2026-05-29 Zhongtian Ma , Hao Wu , Yexin Zhang , Qiaosheng Zhang , Zhen Wang

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

This paper proposes a cold start recommendation model that integrates contrastive learning, aiming to solve the problem of performance degradation of recommendation systems in cold start scenarios due to the scarcity of user and item…

Information Retrieval · Computer Science 2025-02-07 Jiacheng Hu , Tai An , Zidong Yu , Junliang Du , Yuanshuai Luo