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Meta-learning algorithms aim to learn two components: a model that predicts targets for a task, and a base learner that quickly updates that model when given examples from a new task. This additional level of learning can be powerful, but…

机器学习 · 计算机科学 2020-11-05 Janarthanan Rajendran , Alex Irpan , Eric Jang

In the one-class recommendation problem, it's required to make recommendations basing on users' implicit feedback, which is inferred from their action and inaction. Existing works obtain representations of users and items by encoding…

信息检索 · 计算机科学 2024-01-22 Chu-Jen Shao , Hao-Ming Fu , Pu-Jen Cheng

Existing domain adaptation methods assume that domain discrepancies are caused by a few discrete attributes and variations, e.g., art, real, painting, quickdraw, etc. We argue that this is not realistic as it is implausible to define the…

计算机视觉与模式识别 · 计算机科学 2022-08-30 Yinsong Xu , Zhuqing Jiang , Aidong Men , Yang Liu , Qingchao Chen

Unsupervised domain adaptive (UDA) person re-identification (re-ID) is a challenging task due to the missing of labels for the target domain data. To handle this problem, some recent works adopt clustering algorithms to off-line generate…

计算机视觉与模式识别 · 计算机科学 2021-09-29 Yongxing Dai , Jun Liu , Yan Bai , Zekun Tong , Ling-Yu Duan

Self-training emerges as an important research line on domain adaptation. By taking the model's prediction as the pseudo labels of the unlabeled data, self-training bootstraps the model with pseudo instances in the target domain. However,…

机器学习 · 计算机科学 2023-08-08 Menglong Lu , Zhen Huang , Yunxiang Zhao , Zhiliang Tian , Yang Liu , Dongsheng Li

Unsupervised domain adaption (UDA) is a transfer learning task where the data and annotations of the source domain are available but only have access to the unlabeled target data during training. Most previous methods try to minimise the…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Xinyao Shu , Shiyang Yan , Zhenyu Lu , Xinshao Wang , Yuan Xie

Recommender systems predict personalized item rankings based on user preference distributions derived from historical behavior data. Recently, diffusion models (DMs) have gained attention in recommendation for their ability to model complex…

信息检索 · 计算机科学 2025-04-22 Shuo Liu , An Zhang , Guoqing Hu , Hong Qian , Tat-seng Chua

For many recommender systems, the primary data source is a historical record of user clicks. The associated click matrix is often very sparse, as the number of users x products can be far larger than the number of clicks. Such sparsity is…

信息检索 · 计算机科学 2024-12-12 Julien Monteil , Volodymyr Vaskovych , Wentao Lu , Anirban Majumder , Anton van den Hengel

Recommender systems that learn from implicit feedback often use large volumes of a single type of implicit user feedback, such as clicks, to enhance the prediction of sparse target behavior such as purchases. Using multiple types of…

Cross-Domain Sequential Recommendation (CDSR) leverages user behaviors across domains to enhance recommendation quality. However, naive aggregation of sequential signals can introduce conflicting domain-specific preferences, leading to…

信息检索 · 计算机科学 2025-09-12 Xiaoxin Ye , Chengkai Huang , Hongtao Huang , Lina Yao

Reinforcement learning (RL) with verifiable rewards has recently catalyzed a wave of "MLLM-r1" approaches that bring RL to vision language models. Most representative paradigms begin with a cold start, typically employing supervised…

机器学习 · 计算机科学 2026-02-02 Kun Chen , Peng Shi , Haibo Qiu , Zhixiong Zeng , Siqi Yang , Wenji Mao , Lin Ma

Unsupervised domain adaptation (UDA) methods for person re-identification (re-ID) aim at transferring re-ID knowledge from labeled source data to unlabeled target data. Although achieving great success, most of them only use limited data…

计算机视觉与模式识别 · 计算机科学 2021-04-28 Zechen Bai , Zhigang Wang , Jian Wang , Di Hu , Errui Ding

Continual learning aims to rapidly and continually learn the current task from a sequence of tasks. Compared to other kinds of methods, the methods based on experience replay have shown great advantages to overcome catastrophic forgetting.…

机器学习 · 计算机科学 2022-09-14 Ya-nan Han , Jian-wei Liu

Cross domain recommender systems have been increasingly valuable for helping consumers identify useful items in different applications. However, existing cross-domain models typically require large number of overlap users, which can be…

信息检索 · 计算机科学 2021-04-21 Pan Li , Alexander Tuzhilin

With the rapid growth of digital information, personalized recommendation systems have become an indispensable part of Internet services, especially in the fields of e-commerce, social media, and online entertainment. However, traditional…

信息检索 · 计算机科学 2024-11-12 Yuanshuai Luo , Rui Wang , Yaxin Liang , Ankai Liang , Wenyi Liu

For unsupervised domain adaptation (UDA), to alleviate the effect of domain shift, many approaches align the source and target domains in the feature space by adversarial learning or by explicitly aligning their statistics. However, the…

计算机视觉与模式识别 · 计算机科学 2021-03-26 Guoqiang Wei , Cuiling Lan , Wenjun Zeng , Zhibo Chen

Unsupervised domain adaptation techniques have been successful for a wide range of problems where supervised labels are limited. The task is to classify an unlabeled `target' dataset by leveraging a labeled `source' dataset that comes from…

机器学习 · 计算机科学 2018-07-10 Issam Laradji , Reza Babanezhad

Multimodal information (e.g., visible and thermal) can generate robust pedestrian detections to facilitate around-the-clock computer vision applications, such as autonomous driving and video surveillance. However, it still remains a crucial…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Dayan Guan , Xing Luo , Yanpeng Cao , Jiangxin Yang , Yanlong Cao , George Vosselman , Michael Ying Yang

Practical sequence classification tasks in natural language processing often suffer from low training data availability for target classes. Recent works towards mitigating this problem have focused on transfer learning using embeddings…

计算与语言 · 计算机科学 2021-01-29 Manoj Kumar , Varun Kumar , Hadrien Glaude , Cyprien delichy , Aman Alok , Rahul Gupta

Practical recommender systems experience a cold-start problem when observed user-item interactions in the history are insufficient. Meta learning, especially gradient based one, can be adopted to tackle this problem by learning initial…

信息检索 · 计算机科学 2021-11-01 Xidong Feng , Chen Chen , Dong Li , Mengchen Zhao , Jianye Hao , Jun Wang