Search Results for author: Ding Li

Found 16 papers, 6 papers with code

A Unified Membership Inference Method for Visual Self-supervised Encoder via Part-aware Capability

1 code implementation3 Apr 2024 Jie Zhu, Jirong Zha, Ding Li, Leye Wang

In this setting, considering that self-supervised model could be trained by completely different self-supervised paradigms, e. g., masked image modeling and contrastive learning, with complex training details, we propose a unified membership inference method called PartCrop.

Contrastive Learning Self-Supervised Learning

GraphAD: Interaction Scene Graph for End-to-end Autonomous Driving

1 code implementation28 Mar 2024 Yunpeng Zhang, Deheng Qian, Ding Li, Yifeng Pan, Yong Chen, Zhenbao Liang, Zhiyao Zhang, Shurui Zhang, Hongxu Li, Maolei Fu, Yun Ye, Zhujin Liang, Yi Shan, Dalong Du

With the representation of the ISG, the driving agents aggregate essential information from the most influential elements, including the road agents with potential collisions and the map elements to follow.

Autonomous Driving

No Privacy Left Outside: On the (In-)Security of TEE-Shielded DNN Partition for On-Device ML

1 code implementation11 Oct 2023 Ziqi Zhang, Chen Gong, Yifeng Cai, Yuanyuan Yuan, Bingyan Liu, Ding Li, Yao Guo, Xiangqun Chen

These solutions, referred to as TEE-Shielded DNN Partition (TSDP), partition a DNN model into two parts, offloading the privacy-insensitive part to the GPU while shielding the privacy-sensitive part within the TEE.

Inference Attack Membership Inference Attack

Cross-Stream Contrastive Learning for Self-Supervised Skeleton-Based Action Recognition

no code implementations3 May 2023 Ding Li, Yongqiang Tang, Zhizhong Zhang, Wensheng Zhang

Besides, to further exploit the potential of positive pairs and increase the robustness of self-supervised representation learning, we propose a Positive Feature Transformation (PFT) strategy which adopts feature-level manipulation to increase the variance of positive pairs.

Action Recognition Contrastive Learning +2

Conditional Goal-oriented Trajectory Prediction for Interacting Vehicles with Vectorized Representation

no code implementations19 Oct 2022 Ding Li, Qichao Zhang, Shuai Lu, Yifeng Pan, Dongbin Zhao

Our CGTP framework is an end to end and interpretable model, including three main stages: context encoding, goal interactive prediction and trajectory interactive prediction.

Motion Forecasting Trajectory Forecasting

Active Learning with Effective Scoring Functions for Semi-Supervised Temporal Action Localization

no code implementations31 Aug 2022 Ding Li, Xuebing Yang, Yongqiang Tang, Chenyang Zhang, Wensheng Zhang

And the other introduces a new metric based on mutual information between adjacent action proposals and evaluates the informativeness of video samples, named Temporal Context Inconsistency (TCI).

Active Learning Informativeness +1

Attentive pooling for Group Activity Recognition

no code implementations31 Aug 2022 Ding Li, Yuan Xie, Wensheng Zhang, Yongqiang Tang, Zhizhong Zhang

However, the existing methods simply employed max/average pooling in this framework, which ignored the distinct contributions of different individuals to the group activity recognition.

Group Activity Recognition

Diagnostic Communication and Visual System based on Vehicle UDS Protocol

no code implementations25 Jun 2022 Hong Zhang, Ding Li

Unified Diagnostic Services (UDS) is a diagnostic communication protocol used in electronic control units (ECUs) within automotive electronics, which is specified in the ISO 14229-1.

Multi-scale 2D Representation Learning for weakly-supervised moment retrieval

no code implementations4 Nov 2021 Ding Li, Rui Wu, Yongqiang Tang, Zhizhong Zhang, Wensheng Zhang

Specifically, we first construct a two-dimensional map for each temporal scale to capture the temporal dependencies between candidates.

Moment Retrieval Representation Learning +1

DistFL: Distribution-aware Federated Learning for Mobile Scenarios

1 code implementation22 Oct 2021 Bingyan Liu, Yifeng Cai, Ziqi Zhang, Yuanchun Li, Leye Wang, Ding Li, Yao Guo, Xiangqun Chen

Previous studies focus on the "symptoms" directly, as they try to improve the accuracy or detect possible attacks by adding extra steps to conventional FL models.

Federated Learning Privacy Preserving

Learning Heatmap-Style Jigsaw Puzzles Provides Good Pretraining for 2D Human Pose Estimation

no code implementations13 Dec 2020 Kun Zhang, Rui Wu, Ping Yao, Kai Deng, Ding Li, Renbiao Liu, Chuanguang Yang, Ge Chen, Min Du, Tianyao Zheng

We note that 2D pose estimation task is highly dependent on the contextual relationship between image patches, thus we introduce a self-supervised method for pretraining 2D pose estimation networks.

2D Human Pose Estimation 2D Pose Estimation +1

Structural Temporal Graph Neural Networks for Anomaly Detection in Dynamic Graphs

1 code implementation15 May 2020 Lei Cai, Zhengzhang Chen, Chen Luo, Jiaping Gui, Jingchao Ni, Ding Li, Haifeng Chen

Detecting anomalies in dynamic graphs is a vital task, with numerous practical applications in areas such as security, finance, and social media.

Anomaly Detection Network Embedding

SAQL: A Stream-based Query System for Real-Time Abnormal System Behavior Detection

1 code implementation25 Jun 2018 Peng Gao, Xusheng Xiao, Ding Li, Zhichun Li, Kangkook Jee, Zhen-Yu Wu, Chung Hwan Kim, Sanjeev R. Kulkarni, Prateek Mittal

To facilitate the task of expressing anomalies based on expert knowledge, our system provides a domain-specific query language, SAQL, which allows analysts to express models for (1) rule-based anomalies, (2) time-series anomalies, (3) invariant-based anomalies, and (4) outlier-based anomalies.

Cryptography and Security Databases

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