Search Results for author: Xiangfeng Luo

Found 10 papers, 5 papers with code

Back to Prior Knowledge: Joint Event Causality Extraction via Convolutional Semantic Infusion

no code implementations19 Feb 2021 Zijian Wang, Hao Wang, Xiangfeng Luo, Jianqi Gao

Joint event and causality extraction is a challenging yet essential task in information retrieval and data mining.

Information Retrieval Retrieval

A Targeted Universal Attack on Graph Convolutional Network

1 code implementation29 Nov 2020 Jiazhu Dai, Weifeng Zhu, Xiangfeng Luo

The experiments on three popular datasets show that the average attack success rate of the proposed attack on any victim node in the graph reaches 83% when using only 3 attack nodes and 6 fake nodes.

Adversarial Attack

Emotion Correlation Mining Through Deep Learning Models on Natural Language Text

no code implementations28 Jul 2020 Xinzhi Wang, Luyao Kou, Vijayan Sugumaran, Xiangfeng Luo, HUI ZHANG

That means, journalists may try to attract attention using fear and joy words but arouse the emotion love instead; After news release, netizens generate emotional comments to express their intense emotions, i. e., anger, sadness, and love.

Emotion Recognition

Enhancing Relation Extraction Using Syntactic Indicators and Sentential Contexts

1 code implementation4 Dec 2019 Qiongxing Tao, Xiangfeng Luo, Hao Wang

To leverage both syntactic indicators and sentential contexts, we propose an indicator-aware approach for relation extraction.

Relation Relation Extraction +1

Dependent Indian Buffet Process-based Sparse Nonparametric Nonnegative Matrix Factorization

no code implementations12 Jul 2015 Junyu Xuan, Jie Lu, Guangquan Zhang, Richard Yi Da Xu, Xiangfeng Luo

Under this same framework, two classes of correlation function are proposed (1) using Bivariate beta distribution and (2) using Copula function.

Clustering Recommendation Systems

Infinite Author Topic Model based on Mixed Gamma-Negative Binomial Process

no code implementations30 Mar 2015 Junyu Xuan, Jie Lu, Guangquan Zhang, Richard Yi Da Xu, Xiangfeng Luo

One branch of these works is the so-called Author Topic Model (ATM), which incorporates the authors's interests as side information into the classical topic model.

Information Retrieval Retrieval

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