← Search

Liang Gou

7 accepted papers

2024

Hyp-OW: Exploiting Hierarchical Structure Learning with Hyperbolic Distance Enhances Open World Object Detection

AAAI 2024technical

Open World Object Detection (OWOD) is a challenging and realistic task that extends beyond the scope of standard Object Detection task. It involves detecting both known and unknown objects while integrating learned knowledge for future tasks. However, the level of "unknownness" varies significantly…

Cited by 23SourcePDFScholar
2024

MetaAT: Active Testing for Label-Efficient Evaluation of Dense Recognition Tasks

ECCV 2024poster

"In this study, we investigate the task of active testing for label-efficient evaluation, which aims to estimate a model’s performance on an unlabeled test dataset with a limited annotation budget. Previous approaches relied on deep ensemble models to identify highly informative instances for labeli…

Cited by 0SourcePDFScholar
2024

USE: Universal Segment Embeddings for Open-Vocabulary Image Segmentation

CVPR 2024poster

The open-vocabulary image segmentation task involves partitioning images into semantically meaningful segments and classifying them with flexible text-defined categories. The recent vision-based foundation models such as the Segment Anything Model (SAM) have shown superior performance in generating…

Cited by 5SourcePDFScholar
2023

CLIP-S4: Language-Guided Self-Supervised Semantic Segmentation

CVPR 2023highlight

Existing semantic segmentation approaches are often limited by costly pixel-wise annotations and predefined classes. In this work, we present CLIP-S^4 that leverages self-supervised pixel representation learning and vision-language models to enable various semantic segmentation tasks (e.g., unsuperv…

Cited by 58SourcePDFScholar
2023

GradOrth: A Simple yet Efficient Out-of-Distribution Detection with Orthogonal Projection of Gradients

NeurIPS 2023poster

Detecting out-of-distribution (OOD) data is crucial for ensuring the safe deployment of machine learning models in real-world applications. However, existing OOD detection approaches primarily rely on the feature maps or the full gradient space information to derive OOD scores neglecting the role of…

Cited by 16SourcePDFScholar
2023

UP-DP: Unsupervised Prompt Learning for Data Pre-Selection with Vision-Language Models

NeurIPS 2023poster

In this study, we investigate the task of data pre-selection, which aims to select instances for labeling from an unlabeled dataset through a single pass, thereby optimizing performance for undefined downstream tasks with a limited annotation budget. Previous approaches to data pre-selection relied…

Cited by 7SourcePDFScholar
2022

Self-supervised Semantic Segmentation Grounded in Visual Concepts

IJCAI 2022poster

Unsupervised semantic segmentation requires assigning a label to every pixel without any human annotations. Despite recent advances in self-supervised representation learning for individual images, unsupervised semantic segmentation with pixel-level representations is still a challenging task and r…

Cited by 10SourcePDFScholar