Search Results for author: Weitong Chen

Found 6 papers, 2 papers with code

Label-Agnostic Forgetting: A Supervision-Free Unlearning in Deep Models

1 code implementation31 Mar 2024 Shaofei Shen, Chenhao Zhang, Yawen Zhao, Alina Bialkowski, Weitong Chen, Miao Xu

Leveraging this approximation, we adapt the original model to eliminate information from the forgotten data at the representation level.

Machine Unlearning

CaMU: Disentangling Causal Effects in Deep Model Unlearning

1 code implementation30 Jan 2024 Shaofei Shen, Chenhao Zhang, Alina Bialkowski, Weitong Chen, Miao Xu

To address this shortcoming, the present study undertakes a causal analysis of the unlearning and introduces a novel framework termed Causal Machine Unlearning (CaMU).

Machine Unlearning

SWAP: Exploiting Second-Ranked Logits for Adversarial Attacks on Time Series

no code implementations6 Sep 2023 Chang George Dong, Liangwei Nathan Zheng, Weitong Chen, Wei Emma Zhang, Lin Yue

Time series classification (TSC) has emerged as a critical task in various domains, and deep neural models have shown superior performance in TSC tasks.

Time Series Time Series Classification

A Boosting Algorithm for Positive-Unlabeled Learning

no code implementations19 May 2022 Yawen Zhao, Mingzhe Zhang, Chenhao Zhang, Weitong Chen, Nan Ye, Miao Xu

This is because AdaPU learns a weak classifier and its weight using a weighted positive-negative (PN) dataset with some negative data weights $-$ the dataset is derived from the original PU data, and the data weights are determined by the current weighted classifier combination, but some data weights are negative.

Action Detection Activity Detection +1

DBRec: Dual-Bridging Recommendation via Discovering Latent Groups

no code implementations27 Sep 2019 Jingwei Ma, Jiahui Wen, Mingyang Zhong, Liangchen Liu, Chaojie Li, Weitong Chen, Yin Yang, Honghui Tu, Xue Li

In addition, we propose to jointly learn user-user group (item-item group) hierarchies, so that we can effectively discover latent groups and learn compact user/item representations.

Collaborative Filtering Recommendation Systems

Cascade and Parallel Convolutional Recurrent Neural Networks on EEG-based Intention Recognition for Brain Computer Interface

no code implementations22 Aug 2017 Dalin Zhang, Lina Yao, Xiang Zhang, Sen Wang, Weitong Chen, Robert Boots

Brain-Computer Interface (BCI) is a system empowering humans to communicate with or control the outside world with exclusively brain intentions.

Human-Computer Interaction Neurons and Cognition

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