Most real-world information networks, such as social networks, are heterogeneous and as such, relationships in these networks can be of different types and hence carry differing semantics. Therefore techniques for link prediction in homogeneous networks cannot be directly applied on heterogeneous ones. On the other hand, works that investigate link prediction in heterogeneous networks do not necessarily consider network dynamism in sequential time intervals. In this work we propose a technique that leverages a combination of latent and topological features to predict a target relationship between two nodes in a dynamic heterogeneous information network. Our technique, called MetaDynaMix, effectively combines meta path-based topology features and inferred latent features that incorporate temporal network changes in order to capture network (1) heterogeneity and (2) temporal evolution, when making link predictions. Our experiment results on two real-world datasets show statistically significant improvement over AUCROC and prediction accuracy compared to the state of the art techniques.
A. Milani Fard, E. bagheri, K. Wang, "Relationship Prediction in Dynamic Heterogeneous Information Networks”, The 41st European Conference on Information Retrieval (ECIR), 2019.
The paper received the Best Paper Award in the conference!
@inproceedings{milanifard_ecir19,
author = {Milani Fard, Amin and Bagheri, Ebrahim and Wang, Ke},
title = {Relationship Prediction in Dynamic Heterogeneous Information Networks},
booktitle = {Proceedings of the European Conference on Information Retrieval (ECIR)},
publisher = {Springer},
pages={19--34},
year = {2019}
}