Bayesian Model Selection via Mean-Field Variational Approximation

no code implementations • 17 Dec 2023 • Yangfan Zhang, Yun Yang

This article considers Bayesian model selection via mean-field (MF) variational approximation.

Model Selection Variational Inference

Event-Centric Query Expansion in Web Search

no code implementations • 30 May 2023 • Yanan Zhang, Weijie Cui, Yangfan Zhang, Xiaoling Bai, Zhe Zhang, Jin Ma, Xiang Chen, Tianhua Zhou

In search engines, query expansion (QE) is a crucial technique to improve search experience.

Contrastive Learning Retrieval +1

Title2Event: Benchmarking Open Event Extraction with a Large-scale Chinese Title Dataset

no code implementations • 2 Nov 2022 • Haolin Deng, Yanan Zhang, Yangfan Zhang, Wangyang Ying, Changlong Yu, Jun Gao, Wei Wang, Xiaoling Bai, Nan Yang, Jin Ma, Xiang Chen, Tianhua Zhou

To the best of our knowledge, it is currently the largest manually-annotated Chinese dataset for open event extraction.

Benchmarking Event Extraction +2

Adaptive Inference for Change Points in High-Dimensional Data

no code implementations • 29 Jan 2021 • Yangfan Zhang, Runmin Wang, Xiaofeng Shao

In this article, we propose a class of test statistics for a change point in the mean of high-dimensional independent data.

Methodology