Search Results for author: Hai Liu

Found 6 papers, 1 papers with code

A Self-supervised Joint Training Framework for Document Reranking

no code implementations Findings (NAACL) 2022 Xiaozhi Zhu, Tianyong Hao, Sijie Cheng, Fu Lee Wang, Hai Liu

Pretrained language models such as BERT have been successfully applied to a wide range of natural language processing tasks and also achieved impressive performance in document reranking tasks.

Language Modelling Passage Ranking +1

Event Voxel Set Transformer for Spatiotemporal Representation Learning on Event Streams

no code implementations7 Mar 2023 Bochen Xie, Yongjian Deng, Zhanpeng Shao, Hai Liu, Qingsong Xu, Youfu Li

To fit the sparse nature of events and sufficiently explore the relationship between them, we develop a novel attention-aware model named Event Voxel Set Transformer (EVSTr) for spatiotemporal representation learning on event streams.

Action Recognition Representation Learning

TokenHPE: Learning Orientation Tokens for Efficient Head Pose Estimation via Transformers

1 code implementation CVPR 2023 Cheng Zhang, Hai Liu, Yongjian Deng, Bochen Xie, Youfu Li

To leverage the observed findings, we propose a novel critical minority relationship-aware method based on the Transformer architecture in which the facial part relationships can be learned.

Head Pose Estimation

TransIFC: Invariant Cues-aware Feature Concentration Learning for Efficient Fine-grained Bird Image Classification

no code implementations TIP 2022 Hai Liu, Cheng Zhang, Yongjian Deng, Bochen Xie, Tingting Liu, Zhaoli Zhang, You-Fu Li

To this end, two novel modules are proposed to leverage the characteristics of bird images, namely, the hierarchy stage feature aggregation (HSFA) module and the feature in feature abstraction (FFA) module.

feature selection Fine-Grained Image Classification

A Voxel Graph CNN for Object Classification with Event Cameras

no code implementations CVPR 2022 Yongjian Deng, Hao Chen, Hai Liu, Youfu Li

This study aims to address the core problem of balancing accuracy and model complexity for event-based classification models.

Classification Object Recognition

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