Search Results for author: Shiji Zhou

Found 12 papers, 1 papers with code

Incremental Residual Concept Bottleneck Models

no code implementations13 Apr 2024 Chenming Shang, Shiji Zhou, Hengyuan Zhang, Xinzhe Ni, Yujiu Yang, Yuwang Wang

Concept Bottleneck Models (CBMs) map the black-box visual representations extracted by deep neural networks onto a set of interpretable concepts and use the concepts to make predictions, enhancing the transparency of the decision-making process.

Decision Making Descriptive

Robust Multi-Task Learning with Excess Risks

no code implementations3 Feb 2024 Yifei He, Shiji Zhou, Guojun Zhang, Hyokun Yun, Yi Xu, Belinda Zeng, Trishul Chilimbi, Han Zhao

To overcome this limitation, we propose Multi-Task Learning with Excess Risks (ExcessMTL), an excess risk-based task balancing method that updates the task weights by their distances to convergence instead.

Multi-Task Learning

Gradient-based Parameter Selection for Efficient Fine-Tuning

no code implementations15 Dec 2023 Zhi Zhang, Qizhe Zhang, Zijun Gao, Renrui Zhang, Ekaterina Shutova, Shiji Zhou, Shanghang Zhang

With the growing size of pre-trained models, full fine-tuning and storing all the parameters for various downstream tasks is costly and infeasible.

Image Classification Image Segmentation +2

Marketing Budget Allocation with Offline Constrained Deep Reinforcement Learning

no code implementations6 Sep 2023 Tianchi Cai, Jiyan Jiang, Wenpeng Zhang, Shiji Zhou, Xierui Song, Li Yu, Lihong Gu, Xiaodong Zeng, Jinjie Gu, Guannan Zhang

We further show that this method is guaranteed to converge to the optimal policy, which cannot be achieved by previous value-based reinforcement learning methods for marketing budget allocation.

Marketing reinforcement-learning

Model-free Reinforcement Learning with Stochastic Reward Stabilization for Recommender Systems

no code implementations25 Aug 2023 Tianchi Cai, Shenliao Bao, Jiyan Jiang, Shiji Zhou, Wenpeng Zhang, Lihong Gu, Jinjie Gu, Guannan Zhang

Model-free RL-based recommender systems have recently received increasing research attention due to their capability to handle partial feedback and long-term rewards.

Recommendation Systems reinforcement-learning

Improving Generalization of Meta-Learning With Inverted Regularization at Inner-Level

no code implementations CVPR 2023 Lianzhe Wang, Shiji Zhou, Shanghang Zhang, Xu Chu, Heng Chang, Wenwu Zhu

Despite the broad interest in meta-learning, the generalization problem remains one of the significant challenges in this field.

Meta-Learning

Revisiting Adversarial Attacks on Graph Neural Networks for Graph Classification

no code implementations13 Aug 2022 Xin Wang, Heng Chang, Beini Xie, Tian Bian, Shiji Zhou, Daixin Wang, Zhiqiang Zhang, Wenwu Zhu

Graph neural networks (GNNs) have achieved tremendous success in the task of graph classification and its diverse downstream real-world applications.

Graph Classification

Algorithms and Theory for Supervised Gradual Domain Adaptation

no code implementations25 Apr 2022 Jing Dong, Shiji Zhou, Baoxiang Wang, Han Zhao

We thus study the problem of supervised gradual domain adaptation, where labeled data from shifting distributions are available to the learner along the trajectory, and we aim to learn a classifier on a target data distribution of interest.

Domain Adaptation

Not All Low-Pass Filters are Robust in Graph Convolutional Networks

1 code implementation NeurIPS 2021 Heng Chang, Yu Rong, Tingyang Xu, Yatao Bian, Shiji Zhou, Xin Wang, Junzhou Huang, Wenwu Zhu

Graph Convolutional Networks (GCNs) are promising deep learning approaches in learning representations for graph-structured data.

Meta Learning with Minimax Regularization

no code implementations29 Sep 2021 Lianzhe Wang, Shiji Zhou, Shanghang Zhang, Wenpeng Zhang, Heng Chang, Wenwu Zhu

Even though meta-learning has attracted research wide attention in recent years, the generalization problem of meta-learning is still not well addressed.

Few-Shot Learning

Multi-Objective Online Learning

no code implementations29 Sep 2021 Jiyan Jiang, Wenpeng Zhang, Shiji Zhou, Lihong Gu, Xiaodong Zeng, Wenwu Zhu

This paper presents a systematic study of multi-objective online learning.

Online Continual Adaptation with Active Self-Training

no code implementations11 Jun 2021 Shiji Zhou, Han Zhao, Shanghang Zhang, Lianzhe Wang, Heng Chang, Zhi Wang, Wenwu Zhu

Our theoretical results show that OSAMD can fast adapt to changing environments with active queries.

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