个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:计算机科学与技术学院
电子邮箱:yangzh@dlut.edu.cn
Protein-Protein Interaction Extraction Based on Improved All-Paths Kernel
点击次数:
论文类型:期刊论文
发表时间:2011-10-01
发表刊物:JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE
收录刊物:Scopus、SCIE、EI
卷号:8
期号:10
页面范围:1925-1932
ISSN号:1546-1955
关键字:Interaction Extraction; Graph Kernel; Biomedical Literature
摘要:Extracting protein protein interactions from biomedical literatures is an important task in biomedical text mining. In this paper, we propose an improved all-paths kernel based method for this task. First, we improve all-paths kernel method by adding adjacent label to node label so that it can match the contiguous label sequences of graphs. Second, we divide the dependency graph into the token subgraph and relation subgraph which can better represent sentence structure to graph kernel and efficiently reduce the weak features in feature space. We evaluate the proposed method on five publicly available PPI corpora and perform detailed comparisons with other methods. As a result, our method significantly outperforms all-paths kernel method.