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Ziwen Liu

3 accepted papers

2026

Randomized Antipodal Search Done Right for Data Pareto Improvement of LLM Unlearning

ICLR 2026poster

Large language models (LLMs) sometimes memorize undesirable knowledge, which must be removed after deployment. Prior work on machine unlearning has focused largely on optimization methods that adjust parameters to enforce forgetting while preserving retention. However, these approaches assume that t…

Cited by 0SourceScholar
2024

Learning Dynamic Tetrahedra for High-Quality Talking Head Synthesis

CVPR 2024poster

Recent works in implicit representations such as Neural Radiance Fields (NeRF) have advanced the generation of realistic and animatable head avatars from video sequences. These implicit methods are still confronted by visual artifacts and jitters since the lack of explicit geometric constraints pose…

2022

BERT-Flow-VAE: A Weakly-supervised Model for Multi-Label Text Classification

COLING 2022main

Multi-label Text Classification (MLTC) is the task of categorizing documents into one or more topics. Considering the large volumes of data and varying domains of such tasks, fully supervised learning requires manually fully annotated datasets which is costly and time-consuming. In this paper, we pr…