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Multi-label Recognition (MLR) involves the identification of multiple objects within an image. To address the additional complexity of this problem, recent works have leveraged information from vision-language models (VLMs) trained on large…

计算机视觉与模式识别 · 计算机科学 2024-09-23 Samyak Rawlekar , Shubhang Bhatnagar , Vishnuvardhan Pogunulu Srinivasulu , Narendra Ahuja

Large Language Models (LLMs) have demonstrated great potential in Conversational Recommender Systems (CRS). However, the application of LLMs to CRS has exposed a notable discrepancy in behavior between LLM-based CRS and human recommenders:…

信息检索 · 计算机科学 2024-10-21 Dayu Yang , Fumian Chen , Hui Fang

The top-k recommendation is a fundamental task in recommendation systems which is generally learned by comparing positive and negative pairs. The Contrastive Loss (CL) is the key in contrastive learning that has received more attention…

信息检索 · 计算机科学 2021-09-02 Hao Tang , Guoshuai Zhao , Yuxia Wu , Xueming Qian

One of the well-known challenges in computer vision tasks is the visual diversity of images, which could result in an agreement or disagreement between the learned knowledge and the visual content exhibited by the current observation. In…

机器学习 · 计算机科学 2020-01-03 Yan Luo , Yongkang Wong , Mohan S. Kankanhalli , Qi Zhao

Multi-task learning (MTL) aims to improve the generalization of several related tasks by learning them jointly. As a comparison, in addition to the joint training scheme, modern meta-learning allows unseen tasks with limited labels during…

机器学习 · 计算机科学 2021-06-17 Haoxiang Wang , Han Zhao , Bo Li

Human action recognition (HAR) with multi-modal inputs (RGB-D, skeleton, point cloud) can achieve high accuracy but typically relies on large labeled datasets and degrades sharply when sensors fail or are noisy. We present Robust…

信号处理 · 电气工程与系统科学 2025-11-18 Hasan Akgul , Mari Eplik , Javier Rojas , Akira Yamamoto , Rajesh Kumar , Maya Singh

Sequential Recommendation (SR) has received increasing attention due to its ability to capture user dynamic preferences. Recently, Contrastive Learning (CL) provides an effective approach for sequential recommendation by learning invariance…

Contrastive learning is a well-established paradigm in representation learning. The standard framework of contrastive learning minimizes the distance between "similar" instances and maximizes the distance between dissimilar ones in the…

机器学习 · 计算机科学 2025-02-06 Naghmeh Ghanooni , Barbod Pajoum , Harshit Rawal , Sophie Fellenz , Vo Nguyen Le Duy , Marius Kloft

Recent advances in Multimodal Large Language Models (MLLMs) have enhanced their versatility as they integrate a growing number of modalities. Considering the heavy cost of training MLLMs, it is efficient to reuse the existing ones and…

机器学习 · 计算机科学 2025-10-23 Dingkun Zhang , Shuhan Qi , Xinyu Xiao , Kehai Chen , Xuan Wang

Multi-behavior sequential recommendation (MBSR) aims to learn the dynamic and heterogeneous interactions of users' multi-behavior sequences, so as to capture user preferences under target behavior for the next interacted item prediction.…

信息检索 · 计算机科学 2026-02-27 Ruochen Yang , Xiaodong Li , Jiawei Sheng , Jiangxia Cao , Xinkui Lin , Shen Wang , Shuang Yang , Zhaojie Liu , Tingwen Liu

Multi-modal contrastive learning (MMCL) has recently garnered considerable interest due to its superior performance in visual tasks, achieved by embedding multi-modal data, such as visual-language pairs. However, there still lack…

计算机视觉与模式识别 · 计算机科学 2023-06-08 Qi Zhang , Yifei Wang , Yisen Wang

Recommender systems are widely deployed in various web environments, and self-supervised learning (SSL) has recently attracted significant attention in this field. Contrastive learning (CL) stands out as a major SSL paradigm due to its…

信息检索 · 计算机科学 2025-01-17 Yu Zhang , Lei Sang , Yi Zhang , Yiwen Zhang , Yun Yang

Multi-behavior sequential recommendation aims to capture users' dynamic interests by modeling diverse types of user interactions over time. Although several studies have explored this setting, the recommendation performance remains…

信息检索 · 计算机科学 2025-12-16 Yupeng Li , Mingyue Cheng , Yucong Luo , Yitong Zhou , Qingyang Mao , Shijin Wang

The success of recommender systems in modern online platforms is inseparable from the accurate capture of users' personal tastes. In everyday life, large amounts of user feedback data are created along with user-item online interactions in…

机器学习 · 计算机科学 2019-06-25 Xiao Zhou , Danyang Liu , Jianxun Lian , Xing Xie

Modeling user's long-term and short-term interests is crucial for accurate recommendation. However, since there is no manually annotated label for user interests, existing approaches always follow the paradigm of entangling these two…

信息检索 · 计算机科学 2022-03-01 Yu Zheng , Chen Gao , Jianxin Chang , Yanan Niu , Yang Song , Depeng Jin , Yong Li

ELECTRA, the generator-discriminator pre-training framework, has achieved impressive semantic construction capability among various downstream tasks. Despite the convincing performance, ELECTRA still faces the challenges of monotonous…

计算与语言 · 计算机科学 2023-05-09 Beiduo Chen , Shaohan Huang , Zihan Zhang , Wu Guo , Zhenhua Ling , Haizhen Huang , Furu Wei , Weiwei Deng , Qi Zhang

Collaborative filtering often suffers from sparsity and cold start problems in real recommendation scenarios, therefore, researchers and engineers usually use side information to address the issues and improve the performance of recommender…

信息检索 · 计算机科学 2019-01-28 Hongwei Wang , Fuzheng Zhang , Miao Zhao , Wenjie Li , Xing Xie , Minyi Guo

In contrastive learning, two views of an original image, generated by different augmentations, are considered a positive pair, and their similarity is required to be high. Similarly, two views of distinct images form a negative pair, with…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Lei Wang , Piotr Koniusz , Tom Gedeon , Liang Zheng

In this paper, we study a multi-step interactive recommendation problem, where the item recommended at current step may affect the quality of future recommendations. To address the problem, we develop a novel and effective approach, named…

机器学习 · 计算机科学 2019-04-03 Yu Lei , Wenjie Li

Learning effective motion features is an essential pursuit of video representation learning. This paper presents a simple yet effective sample construction strategy to boost the learning of motion features in video contrastive learning. The…

计算机视觉与模式识别 · 计算机科学 2022-12-22 Yuan Liu , Jiacheng Chen , Hao Wu