Search Results for author: Zhiyi Chen

Found 8 papers, 2 papers with code

Co-Speech Gesture Video Generation via Motion-Decoupled Diffusion Model

1 code implementation2 Apr 2024 Xu He, Qiaochu Huang, Zhensong Zhang, Zhiwei Lin, Zhiyong Wu, Sicheng Yang, Minglei Li, Zhiyi Chen, Songcen Xu, Xiaofei Wu

While previous works mostly generate structural human skeletons, resulting in the omission of appearance information, we focus on the direct generation of audio-driven co-speech gesture videos in this work.

Video Generation

DiffPrep: Differentiable Data Preprocessing Pipeline Search for Learning over Tabular Data

1 code implementation20 Aug 2023 Peng Li, Zhiyi Chen, Xu Chu, Kexin Rong

Data preprocessing is a crucial step in the machine learning process that transforms raw data into a more usable format for downstream ML models.

AutoML

Principal Gradient Direction and Confidence Reservoir Sampling for Continual Learning

no code implementations21 Aug 2021 Zhiyi Chen, Tong Lin

In Principal Gradient Direction, we optimize a target gradient that not only represents the major contribution of past gradients, but also retains the new knowledge of the current gradient.

Continual Learning

Revisiting Gradient Episodic Memory for Continual Learning

no code implementations25 Sep 2019 Zhiyi Chen, Tong Lin*

Gradient Episodic Memory (GEM) is an effective model for continual learning, where each gradient update for the current task is formulated as a quadratic program problem with inequality constraints that alleviate catastrophic forgetting of previous tasks.

Continual Learning Transfer Learning

Security Matters: A Survey on Adversarial Machine Learning

no code implementations16 Oct 2018 Guofu Li, Pengjia Zhu, Jin Li, Zhemin Yang, Ning Cao, Zhiyi Chen

Adversarial machine learning is a fast growing research area, which considers the scenarios when machine learning systems may face potential adversarial attackers, who intentionally synthesize input data to make a well-trained model to make mistake.

BIG-bench Machine Learning

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