Analysis of Text-Enriched Heterogeneous Information Networks

Abstract

This chapter addresses the analysis of information networks, focusing on heterogeneous information networks with more than one type of nodes and arcs. After an overview of tasks and approaches to mining heterogeneous information networks, the presentation focuses on text-enriched heterogeneous information networks whose distinguishing property is that certain nodes are enriched with text information. A particular approach to mining text-enriched heterogeneous information networks is presented that combines text mining and network mining approaches. The approach decomposes a heterogeneous network into separate homogeneous networks, followed by concatenating the structural context vectors calculated from separate homogeneous networks with the bag-of-words vectors obtained from textual information contained in certain network nodes. The approach is show-cased on the analysis of two real-life text-enriched heterogeneous citation networks.