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Guifeng Wang

5 accepted papers

2025

Towards Database-Free Text-to-SQL Evaluation: A Graph-Based Metric for Functional Correctness

COLING 2025main

Execution Accuracy and Exact Set Match are two predominant metrics for evaluating the functional correctness of SQL queries in modern Text-to-SQL tasks. However, both metrics have notable limitations: Exact Set Match fails when queries are functionally equivalent but syntactically different, while E…

Cited by 0SourcePDFScholar
2023

A new perspective on building efficient and expressive 3D equivariant graph neural networks

NeurIPS 2023poster

Geometric deep learning enables the encoding of physical symmetries in modeling 3D objects. Despite rapid progress in encoding 3D symmetries into Graph Neural Networks (GNNs), a comprehensive evaluation of the expressiveness of these network architectures through a local-to-global analysis lacks tod…

2023

Beyond Homophily: Robust Graph Anomaly Detection via Neural Sparsification

IJCAI 2023poster

Recently, graph-based anomaly detection (GAD) has attracted rising attention due to its effectiveness in identifying anomalies in relational and structured data. Unfortunately, the performance of most existing GAD methods suffers from the inherent structural noises of graphs induced by hidden anomal…

2023

PTADisc: A Cross-Course Dataset Supporting Personalized Learning in Cold-Start Scenarios

NeurIPS 2023poster

The focus of our work is on diagnostic tasks in personalized learning, such as cognitive diagnosis and knowledge tracing. The goal of these tasks is to assess students' latent proficiency on knowledge concepts through analyzing their historical learning records. However, existing research has been l…

2021

Coupling Macro-Sector-Micro Financial Indicators for Learning Stock Representations with Less Uncertainty

AAAI 2021technical

While the stock movement prediction has been intensively studied, existing work suffers from weak generalization because of the uncertainty in both data and modeling. On one hand, training a stock representation on stochastic stock data in an end-to-end manner may lead to excessive modeling, which i…