A tool for comparing multirelational networks from biology

This work presents a particular type of interaction networks encounter in biological and medical domains. The networks allow more than one interaction (or one relationship) between two entities. These are multi-relational networks. The existing tools dealing with social networks nowadays usually transform a multi-relational network into a single relational one and use the existing algorithms to process it. This might sometimes conduct to loss of generality. In this work we present an implementation of multirelational networks and basic operations required to compare two or more such networks. We consider practical examples from medicine and we compare three gene-gene interaction networks of representative genes for three types of related women cancers: breast, ovarian, and endometrial.