Title
A method for integrating and ranking the evidence for biochemical pathways by mining reactions from text.
Abstract
Motivation: To create, verify and maintain pathway models, curators must discover and assess knowledge distributed over the vast body of biological literature. Methods supporting these tasks must understand both the pathway model representations and the natural language in the literature. These methods should identify and order documents by relevance to any given pathway reaction. No existing system has addressed all aspects of this challenge. Method: We present novel methods for associating pathway model reactions with relevant publications. Our approach extracts the reactions directly from the models and then turns them into queries for three text mining-based MEDLINE literature search systems. These queries are executed, and the resulting documents are combined and ranked according to their relevance to the reactions of interest. We manually annotate document-reaction pairs with the relevance of the document to the reaction and use this annotation to study several ranking methods, using various heuristic and machine-learning approaches. Results: Our evaluation shows that the annotated document-reaction pairs can be used to create a rule-based document ranking system, and that machine learning can be used to rank documents by their relevance to pathway reactions. We find that a Support Vector Machine-based system outperforms several baselines and matches the performance of the rule-based system. The success of the query extraction and ranking methods are used to update our existing pathway search system, PathText.
Year
DOI
Venue
2013
10.1093/bioinformatics/btt227
BIOINFORMATICS
Keywords
Field
DocType
algorithms,artificial intelligence,data mining,support vector machines
Data mining,Heuristic,Text mining,Annotation,Information retrieval,Ranking,Computer science,Support vector machine,Natural language,Ranking (information retrieval),Bioinformatics,MEDLINE
Journal
Volume
Issue
ISSN
29
13
1367-4803
Citations 
PageRank 
References 
12
0.54
36
Authors
7
Name
Order
Citations
PageRank
Makoto Miwa174644.93
Tomoko Ohta2179493.54
Rafal Rak338218.30
Andrew Rowley41058.87
Douglas B Kell5100494.11
Sampo Pyysalo61941100.14
Sophia Ananiadou72658183.08