Search Results for author: Zhihao Wen

Found 7 papers, 1 papers with code

Temporal and Heterogeneous Graph Neural Network for Remaining Useful Life Prediction

no code implementations7 May 2024 Zhihao Wen, Yuan Fang, Pengcheng Wei, Fayao Liu, Zhenghua Chen, Min Wu

To capture the nuances of the temporal and spatial relationships and heterogeneous characteristics in an interconnected graph of sensors, we introduce a novel model named Temporal and Heterogeneous Graph Neural Networks (THGNN).

SIBO: A Simple Booster for Parameter-Efficient Fine-Tuning

no code implementations19 Feb 2024 Zhihao Wen, Jie Zhang, Yuan Fang

Fine-tuning all parameters of large language models (LLMs) necessitates substantial computational power and extended time.

Voucher Abuse Detection with Prompt-based Fine-tuning on Graph Neural Networks

no code implementations19 Aug 2023 Zhihao Wen, Yuan Fang, Yihan Liu, Yang Guo, Shuji Hao

We design a novel graph prompting function to reformulate the downstream task into a similar template as the pretext task in pre-training, thereby narrowing the objective gap.

Abuse Detection Anomaly Detection

Prompt Tuning on Graph-augmented Low-resource Text Classification

1 code implementation15 Jul 2023 Zhihao Wen, Yuan Fang

During pre-training, we propose three graph interaction-based contrastive strategies to jointly pre-train a graph-text model; during downstream classification, we explore handcrafted discrete prompts and continuous prompt tuning for the jointly pre-trained model to achieve zero- and few-shot classification, respectively.

Information Retrieval Retrieval +2

Augmenting Low-Resource Text Classification with Graph-Grounded Pre-training and Prompting

no code implementations5 May 2023 Zhihao Wen, Yuan Fang

Text classification is a fundamental problem in information retrieval with many real-world applications, such as predicting the topics of online articles and the categories of e-commerce product descriptions.

Information Retrieval Retrieval +2

Meta-Inductive Node Classification across Graphs

no code implementations14 May 2021 Zhihao Wen, Yuan Fang, Zemin Liu

That is, MI-GNN does not directly learn an inductive model; it learns the general knowledge of how to train a model for semi-supervised node classification on new graphs.

Classification General Knowledge +6

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