Search Results for author: Jiujiu Chen

Found 7 papers, 0 papers with code

Molecule Joint Auto-Encoding: Trajectory Pretraining with 2D and 3D Diffusion

no code implementations NeurIPS 2023 Weitao Du, Jiujiu Chen, Xuecang Zhang, ZhiMing Ma, Shengchao Liu

The fundamental building block for drug discovery is molecule geometry and thus, the molecule's geometrical representation is the main bottleneck to better utilize machine learning techniques for drug discovery.

Drug Discovery

Deep Joint Source-Channel Coding for Wireless Image Transmission with Semantic Importance

no code implementations5 Feb 2023 Qizheng Sun, Caili Guo, Yang Yang, Jiujiu Chen, Rui Tang, Chuanhong Liu

Specifically, we first propose semantic importance weight calculation method, which is based on the gradient of intelligent task's perception results with respect to the features.

Deep Joint Source-Channel Coding Based on Semantics of Pixels

no code implementations24 Aug 2022 Qizheng Sun, Caili Guo, Yang Yang, Jiujiu Chen, Rui Tang, Chuanhong Liu

The semantic information of the image for intelligent tasks is hidden behind the pixels, and slight changes in the pixels will affect the performance of intelligent tasks.

Semantic-assisted image compression

no code implementations29 Jan 2022 Qizheng Sun, Caili Guo, Yang Yang, Jiujiu Chen, Xijun Xue

Experimental results show that the proposed SAIC method can retain more semantic-level information and achieve better performance of downstream AI tasks compared to the traditional deep learning-based method and the advanced perceptual method at the same compression ratio.

Image Compression

Bandwidth and Power Allocation for Task-Oriented SemanticCommunication

no code implementations26 Jan 2022 Chuanhong Liu, Caili Guo, Yang Yang, Jiujiu Chen

The first subproblem is a compression ratio optimization problem with a given resource allocation scheme, which is solved by a enumeration algorithm.

Jointly Learning Agent and Lane Information for Multimodal Trajectory Prediction

no code implementations26 Nov 2021 Jie Wang, Caili Guo, Minan Guo, Jiujiu Chen

JAL-MTP use a Social to Lane (S2L) module to jointly represent the static lane and the dynamic motion of the neighboring agents as instance-level lane, a Recurrent Lane Attention (RLA) mechanism for utilizing the instance-level lanes to predict the map-adaptive future trajectories and two selectors to identify the typical and reasonable trajectories.

Autonomous Vehicles Trajectory Prediction

Semantic Communications With AI Tasks

no code implementations29 Sep 2021 Yang Yang, Caili Guo, Fangfang Liu, Chuanhong Liu, Lunan Sun, Qizheng Sun, Jiujiu Chen

A radical paradigm shift of wireless networks from ``connected things'' to ``connected intelligence'' undergoes, which coincides with the Shanno and Weaver's envisions: Communications will transform from the technical level to the semantic level.

Defect Detection

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