Email updates

Keep up to date with the latest news and content from BioData Mining and BioMed Central.

Open Access Highly Accessed Research

An automated framework for hypotheses generation using literature

Vida Abedi12, Ramin Zand3, Mohammed Yeasin12* and Fazle Elahi Faisal12

Author Affiliations

1 Department of Electrical and Computer Engineering, Memphis University, Memphis, TN, 38152, USA

2 College of Arts and Sciences, Bioinformatics Program, Memphis University, Memphis, TN, 38152, USA

3 Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, 38163, USA

For all author emails, please log on.

BioData Mining 2012, 5:13  doi:10.1186/1756-0381-5-13

Published: 29 August 2012

Abstract

Background

In bio-medicine, exploratory studies and hypothesis generation often begin with researching existing literature to identify a set of factors and their association with diseases, phenotypes, or biological processes. Many scientists are overwhelmed by the sheer volume of literature on a disease when they plan to generate a new hypothesis or study a biological phenomenon. The situation is even worse for junior investigators who often find it difficult to formulate new hypotheses or, more importantly, corroborate if their hypothesis is consistent with existing literature. It is a daunting task to be abreast with so much being published and also remember all combinations of direct and indirect associations. Fortunately there is a growing trend of using literature mining and knowledge discovery tools in biomedical research. However, there is still a large gap between the huge amount of effort and resources invested in disease research and the little effort in harvesting the published knowledge. The proposed hypothesis generation framework (HGF) finds “crisp semantic associations” among entities of interest - that is a step towards bridging such gaps.

Methodology

The proposed HGF shares similar end goals like the SWAN but are more holistic in nature and was designed and implemented using scalable and efficient computational models of disease-disease interaction. The integration of mapping ontologies with latent semantic analysis is critical in capturing domain specific direct and indirect “crisp” associations, and making assertions about entities (such as disease X is associated with a set of factors Z).

Results

Pilot studies were performed using two diseases. A comparative analysis of the computed “associations” and “assertions” with curated expert knowledge was performed to validate the results. It was observed that the HGF is able to capture “crisp” direct and indirect associations, and provide knowledge discovery on demand.

Conclusions

The proposed framework is fast, efficient, and robust in generating new hypotheses to identify factors associated with a disease. A full integrated Web service application is being developed for wide dissemination of the HGF. A large-scale study by the domain experts and associated researchers is underway to validate the associations and assertions computed by the HGF.

Keywords:
Disease network; Disease model; Biological literature-mining; Hypothesis generation; Knowledge discovery; MeSH ontology