Title
Towards the assessment of GRN algorithms based on (disease) ontology
Abstract
The inference of biological networks from experimental data is a growing area in bioinformatics and systems biology. Biological network inference aims to reconstruct network of interactions (or associations) among biological molecules (e.g. genes or proteins) starting from experimental observations. The growing of the number of these algorithms has been not accompanied from the appearance of fair assessments and comparisons. Current assessments are usually based on the comparison of the algorithms using reference networks or gold standard dataset. Low attention has been posed on the ability of algorithms to reconstruct network that are related to diseases or phenotypes. It has been observed that highly connected or central genes in a GRN or PPI networks are essential genes and possible key players for disease diagnosis. Consequently we designed a novel assessment methodology that relies on the ranking of inferred network on the basis of the similarity of their top genes (i.e. hubs) with respect to diseases. The assessment is based on a three step methodology. Initially, we infer regulatory networks using few popular inference methods. Next, we analyse the topology of the network to determine a list of top central genes and finally we match those genes to disease specific ontologies. We hypothesise that more number of top ranked genes from a GRN inferred by a method is matching with disease ontologies more it is influential. The results show a marked change in the ranking of participating methods while assessing network inferability with respect to disease specific ontologies.
Year
DOI
Venue
2015
10.1145/2808719.2812218
BCB
Field
DocType
Citations 
Data mining,Computer science,Artificial intelligence,Biological network inference,Ontology (information science),Disease,Disease Ontology,Ranking,Inference,Biological network,Systems biology,Algorithm,Bioinformatics,Machine learning
Conference
0
PageRank 
References 
Authors
0.34
15
3
Name
Order
Citations
PageRank
Pietro Hiram Guzzi154765.85
Marianna Milano2229.62
Swarup Roy35612.13