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Yen-Cheng Liu

17 accepted papers

2025

LinGen: Towards High-Resolution Minute-Length Text-to-Video Generation with Linear Computational Complexity

CVPR 2025poster

Text-to-video generation enhances content creation but is highly computationally intensive: The computational cost of Diffusion Transformers (DiTs) scales quadratically in the number of pixels. This makes minute-length video generation extremely expensive, limiting most existing models to generatin…

2023

Fast Trainable Projection for Robust Fine-tuning

NeurIPS 2023poster

Robust fine-tuning aims to achieve competitive in-distribution (ID) performance while maintaining the out-of-distribution (OOD) robustness of a pre-trained model when transferring it to a downstream task. Recently, projected gradient descent has been successfully used in robust fine-tuning by constr…

2023

Trainable Projected Gradient Method for Robust Fine-Tuning

CVPR 2023poster

Recent studies on transfer learning have shown that selectively fine-tuning a subset of layers or customizing different learning rates for each layer can greatly improve robustness to out-of-distribution (OOD) data and retain generalization capability in the pre-trained models. However, most of thes…

2022

Cross-Domain Adaptive Teacher for Object Detection

CVPR 2022poster

We address the task of domain adaptation in object detection, where there is a domain gap between a domain with annotations (source) and a domain of interest without annotations (target). As an effective semi-supervised learning method, the teacher-student framework (a student model is supervised by…

Cited by 233PDFcodeScholar
2022

Open-Set Semi-Supervised Object Detection

ECCV 2022poster

"Recent developments for Semi-Supervised Object Detection (SSOD) have shown the promise of leveraging unlabeled data to improve an object detector. However, thus far these methods have assumed that the unlabeled data does not contain out-of-distribution (OOD) classes, which is unrealistic with large…

Cited by 30SourcePDFScholar
2022

Polyhistor: Parameter-Efficient Multi-Task Adaptation for Dense Vision Tasks

NeurIPS 2022accept

Adapting large-scale pretrained models to various downstream tasks via fine-tuning is a standard method in machine learning. Recently, parameter-efficient fine-tuning methods have shown promise in adapting a pretrained model to different tasks while training only a few parameters. Despite their succ…

Cited by 55SourcePDFScholar
2022

Unbiased Teacher v2: Semi-Supervised Object Detection for Anchor-Free and Anchor-Based Detectors

CVPR 2022poster

With the recent development of Semi-Supervised Object Detection (SS-OD) techniques, object detectors can be improved by using a limited amount of labeled data and abundant unlabeled data. However, there are still two challenges that are not addressed: (1) there is no prior SS-OD work on anchor-free…

Cited by 141PDFcodeScholar
2021

Overcoming Obstructions via Bandwidth-Limited Multi-Agent Spatial Handshaking

IROS 2021poster

In this paper, we address bandwidth-limited and obstruction-prone collaborative perception, specifically in the context of multi-agent semantic segmentation. This setting presents several key challenges, including processing and ex-changing unregistered robotic swarm imagery. To be successful, solut…

Cited by 24SourceScholar
2021

Unbiased Teacher for Semi-Supervised Object Detection

ICLR 2021poster

Semi-supervised learning, i.e., training networks with both labeled and unlabeled data, has made significant progress recently. However, existing works have primarily focused on image classification tasks and neglected object detection which requires more annotation effort. In this work, we revisit…

2020

Posterior Re-calibration for Imbalanced Datasets

NeurIPS 2020poster

Neural Networks can perform poorly when the training label distribution is heavily imbalanced, as well as when the testing data differs from the training distribution. In order to deal with shift in the testing label distribution, which imbalance causes, we motivate the problem from the perspective…

2020

UNO: Uncertainty-aware Noisy-Or Multimodal Fusion for Unanticipated Input Degradation

ICRA 2020poster

The fusion of multiple sensor modalities, especially through deep learning architectures, has been an active area of study. However, an under-explored aspect of such work is whether the methods can be robust to degradation across their input modalities, especially when they must generalize to degrad…

Cited by 39SourceScholar
2020

When2com: Multi-Agent Perception via Communication Graph Grouping

CVPR 2020poster

While significant advances have been made for single-agent perception, many applications require multiple sensing agents and cross-agent communication due to benefits such as coverage and robustness. It is therefore critical to develop frameworks which support multi-agent collaborative perception in…

Cited by 251PDFScholar
2020

Who2com: Collaborative Perception via Learnable Handshake Communication

ICRA 2020poster

In this paper, we propose the problem of collaborative perception, where robots can combine their local observations with those of neighboring agents in a learnable way to improve accuracy on a perception task. Unlike existing work in robotics and multi-agent reinforcement learning, we formulate the…

Cited by 180SourceScholar
2019

A Closer Look at Few-shot Classification

ICLR 2019poster

Few-shot classification aims to learn a classifier to recognize unseen classes during training with limited labeled examples. While significant progress has been made, the growing complexity of network designs, meta-learning algorithms, and differences in implementation details make a fair comparison d…

2019

Towards Scene Understanding: Unsupervised Monocular Depth Estimation With Semantic-Aware Representation

CVPR 2019oral

Monocular depth estimation is a challenging task in scene understanding, with the goal to acquire the geometric properties of 3D space from 2D images. Due to the lack of RGB-depth image pairs, unsupervised learning methods aim at deriving depth information with alternative supervision such as stereo…

Cited by 287PDFScholar
2018

A Unified Feature Disentangler for Multi-Domain Image Translation and Manipulation

NeurIPS 2018poster

We present a novel and unified deep learning framework which is capable of learning domain-invariant representation from data across multiple domains. Realized by adversarial training with additional ability to exploit domain-specific information, the proposed network is able to perform continuous c…

2018

Detach and Adapt: Learning Cross-Domain Disentangled Deep Representation

CVPR 2018poster

While representation learning aims to derive interpretable features for describing visual data, representation disentanglement further results in such features so that particular image attributes can be identified and manipulated. However, one cannot easily address this task without observing ground…

Cited by 127SourcePDFScholar