← Search

Pengfei Wei

14 accepted papers

2026

Return of Frustratingly Easy Unsupervised Video Domain Adaptation

ICML 2026poster

Unsupervised video domain adaptation (UVDA) is a practical but under-explored problem. In this paper, we propose a frustratingly easy UVDA method, called \emph{MetaTrans}. Specifically, \emph{MetaTrans} adopts a concise learning objective that contains only two fundamental loss terms. Despite the si…

Cited by 0SourceScholar
2024

Mega-TTS 2: Boosting Prompting Mechanisms for Zero-Shot Speech Synthesis

ICLR 2024poster

Zero-shot text-to-speech (TTS) aims to synthesize voices with unseen speech prompts, which significantly reduces the data and computation requirements for voice cloning by skipping the fine-tuning process. However, the prompting mechanisms of zero-shot TTS still face challenges in the following aspe…

2024

Prior and Prediction Inverse Kernel Transformer for Single Image Defocus Deblurring

AAAI 2024technical

Defocus blur, due to spatially-varying sizes and shapes, is hard to remove. Existing methods either are unable to effectively handle irregular defocus blur or fail to generalize well on other datasets. In this work, we propose a divide-and-conquer approach to tackling this issue, which gives rise to…

2023

Adaptive Policy Learning for Offline-to-Online Reinforcement Learning

AAAI 2023technical

Conventional reinforcement learning (RL) needs an environment to collect fresh data, which is impractical when online interactions are costly. Offline RL provides an alternative solution by directly learning from the previously collected dataset. However, it will yield unsatisfactory performance if…

Cited by 27SourcePDFScholar
2023

Unsupervised Video Domain Adaptation for Action Recognition: A Disentanglement Perspective

NeurIPS 2023poster

Unsupervised video domain adaptation is a practical yet challenging task. In this work, for the first time, we tackle it from a disentanglement view. Our key idea is to handle the spatial and temporal domain divergence separately through disentanglement. Specifically, we consider the generation of c…

2023

Virtual Try-On with Pose-Garment Keypoints Guided Inpainting

ICCV 2023poster

Virtual try-on is an important technology supporting online apparel shopping, which provides consumers with a virtual experience to fit garments without physically wearing them. Recently, the image-based virtual try-on has received growing research attention. However, the synthetic results of existi…

Cited by 32PDFcodeScholar
2022

Language Adaptive Cross-Lingual Speech Representation Learning with Sparse Sharing Sub-Networks

ICASSP 2022accepted

Unsupervised cross-lingual speech representation learning (XLSR) has recently shown promising results in speech recognition by leveraging vast amounts of unlabeled data across multiple languages. However, standard XLSR model suffers from language interference problem due to the lack of language spec…

Cited by 0SourceScholar
2020

Cooperative Heterogeneous Deep Reinforcement Learning

NeurIPS 2020poster

Numerous deep reinforcement learning agents have been proposed, and each of them has its strengths and flaws. In this work, we present a Cooperative Heterogeneous Deep Reinforcement Learning (CHDRL) framework that can learn a policy by integrating the advantages of heterogeneous agents. Specifically…

2020

MESA: Boost Ensemble Imbalanced Learning with MEta-SAmpler

NeurIPS 2020poster

Imbalanced learning (IL), i.e., learning unbiased models from class-imbalanced data, is a challenging problem. Typical IL methods including resampling and reweighting were designed based on some heuristic assumptions. They often suffer from unstable performance, poor applicability, and high computat…

2017

Source-Target Similarity Modelings for Multi-Source Transfer Gaussian Process Regression

ICML 2017poster

A key challenge in multi-source transfer learning is to capture the diverse inter-domain similarities. In this paper, we study different approaches based on Gaussian process models to solve the multi-source transfer regression problem. Precisely, we first investigate the feasibility and performance…

Cited by 38SourcePDFScholar