Search Results for author: Peixuan Li

Found 8 papers, 3 papers with code

UOR: Universal Backdoor Attacks on Pre-trained Language Models

no code implementations16 May 2023 Wei Du, Peixuan Li, Boqun Li, Haodong Zhao, Gongshen Liu

In this paper, we first summarize the requirements that a more threatening backdoor attack against PLMs should satisfy, and then propose a new backdoor attack method called UOR, which breaks the bottleneck of the previous approach by turning manual selection into automatic optimization.

Backdoor Attack Contrastive Learning +2

Millimeter-level Resolution Photonic Multiband Radar Using a Single MZM and Sub-GHz-Bandwidth Electronics

no code implementations18 Oct 2022 Peixuan Li, Wenlin Bai, Xihua Zou, Ningyuan Zhong, Wei Pan, Lianshan Yan

We here propose a novel cost-effective millimeter-level resolution photonic multiband radar system using a single MZM driven by a 1-GHz-bandwidth LFM signal.

Cost-effective photonic super-resolution millimeter-wave joint radar-communication system using self-coherent detection

no code implementations9 Oct 2022 Wenlin Bai, Peixuan Li, Xihua Zou, Ningyuan Zhong, Wei Pan, Lianshan Yan, Bin Luo

Then the self-coherent detection, as a simple and low-cost means, is accordingly facilitated for both de-chirping of MMW radar and frequency down-conversion reception of MMW communication, which circumvents the costly high-speed mixers along with MMW local oscillators and more significantly achieves the real-time decomposition of radar and communication information.

Joint Radar-Communication Super-Resolution

FedPrompt: Communication-Efficient and Privacy Preserving Prompt Tuning in Federated Learning

no code implementations25 Aug 2022 Haodong Zhao, Wei Du, Fangqi Li, Peixuan Li, Gongshen Liu

In this paper, we propose "FedPrompt" to study prompt tuning in a model split aggregation way using FL, and prove that split aggregation greatly reduces the communication cost, only 0. 01% of the PLMs' parameters, with little decrease on accuracy both on IID and Non-IID data distribution.

Backdoor Attack Data Poisoning +2

Time3D: End-to-End Joint Monocular 3D Object Detection and Tracking for Autonomous Driving

no code implementations CVPR 2022 Peixuan Li, Jieyu Jin

While separately leveraging monocular 3D object detection and 2D multi-object tracking can be straightforwardly applied to sequence images in a frame-by-frame fashion, stand-alone tracker cuts off the transmission of the uncertainty from the 3D detector to tracking while cannot pass tracking error differentials back to the 3D detector.

Autonomous Driving Monocular 3D Object Detection +2

RTS3D: Real-time Stereo 3D Detection from 4D Feature-Consistency Embedding Space for Autonomous Driving

1 code implementation30 Dec 2020 Peixuan Li, Shun Su, Huaici Zhao

Different from the 3D occupancy space in the Pseudo-LiDAR similar methods, we design a novel 4D feature-consistent embedding (FCE) space as the intermediate representation of the 3D scene without depth supervision.

3D Object Detection Autonomous Driving +1

Monocular 3D Detection with Geometric Constraints Embedding and Semi-supervised Training

1 code implementation2 Sep 2020 Peixuan Li

In this work, we propose a novel single-shot and keypoints-based framework for monocular 3D objects detection using only RGB images, called KM3D-Net.

Attribute Instance Segmentation +2

RTM3D: Real-time Monocular 3D Detection from Object Keypoints for Autonomous Driving

2 code implementations ECCV 2020 Peixuan Li, Huaici Zhao, PengFei Liu, Feidao Cao

Different from these approaches, our method predicts the nine perspective keypoints of a 3D bounding box in image space, and then utilize the geometric relationship of 3D and 2D perspectives to recover the dimension, location, and orientation in 3D space.

Autonomous Driving Vehicle Pose Estimation

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