Search Results for author: Yiheng Sun

Found 7 papers, 5 papers with code

iLoRE: Dynamic Graph Representation with Instant Long-term Modeling and Re-occurrence Preservation

no code implementations5 Sep 2023 Siwei Zhang, Yun Xiong, Yao Zhang, Xixi Wu, Yiheng Sun, Jiawei Zhang

To overcome the indiscriminate updating issue, we introduce the Adaptive Short-term Updater module that will automatically discard the useless or noisy edges, ensuring iLoRE's effectiveness and instant ability.

Fraud Detection Representation Learning

SPEED: Streaming Partition and Parallel Acceleration for Temporal Interaction Graph Embedding

1 code implementation27 Aug 2023 Xi Chen, Yongxiang Liao, Yun Xiong, Yao Zhang, Siwei Zhang, Jiawei Zhang, Yiheng Sun

Simultaneously, resource consumption of a single-GPU can be diminished by up to 69%, thus enabling the multiple GPU-based training and acceleration encompassing millions of nodes and billions of edges.

Graph Embedding

Flexible Differentially Private Vertical Federated Learning with Adaptive Feature Embeddings

1 code implementation26 Jul 2023 Yuxi Mi, Hongquan Liu, Yewei Xia, Yiheng Sun, Jihong Guan, Shuigeng Zhou

The emergence of vertical federated learning (VFL) has stimulated concerns about the imperfection in privacy protection, as shared feature embeddings may reveal sensitive information under privacy attacks.

Vertical Federated Learning

TIGER: Temporal Interaction Graph Embedding with Restarts

1 code implementation13 Feb 2023 Yao Zhang, Yun Xiong, Yongxiang Liao, Yiheng Sun, Yucheng Jin, Xuehao Zheng, Yangyong Zhu

However, due to the entangled temporal and structural dependencies, existing methods have to process the sequence of events chronologically and consecutively to ensure node representations are up-to-date.

Graph Embedding

RuDi: Explaining Behavior Sequence Models by Automatic Statistics Generation and Rule Distillation

1 code implementation12 Aug 2022 Yao Zhang, Yun Xiong, Yiheng Sun, Caihua Shan, Tian Lu, Hui Song, Yangyong Zhu

We propose a two-stage method, RuDi, that distills the knowledge of black-box teacher models into rule-based student models.

Fairness

Identifying Backdoor Attacks in Federated Learning via Anomaly Detection

no code implementations9 Feb 2022 Yuxi Mi, Yiheng Sun, Jihong Guan, Shuigeng Zhou

For instance, studies have revealed that federated learning is vulnerable to backdoor attacks, whereby a compromised participant can stealthily modify the model's behavior in the presence of backdoor triggers.

Federated Learning Privacy Preserving +1

TransBoost: A Boosting-Tree Kernel Transfer Learning Algorithm for Improving Financial Inclusion

1 code implementation4 Dec 2021 Yiheng Sun, Tian Lu, Cong Wang, Yuan Li, Huaiyu Fu, Jingran Dong, Yunjie Xu

The prosperity of mobile and financial technologies has bred and expanded various kinds of financial products to a broader scope of people, which contributes to advocating financial inclusion.

Transfer Learning

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