Representation Learning for Heterogeneous Information Networks via Embedding Events
Abstract
Network representation learning (NRL) has been widely used to help analyze large-scale networks through mapping original networks into a low-dimensional vector space. However, existing NRL methods ignore the impact of properties of relations on the object relevance in heterogeneous information networks (HINs). To tackle this issue, this paper proposes a new NRL framework, called Event2vec, for HINs to consider both quantities and properties of relations during the representation learning process. Specifically, an event (i.e., a complete semantic unit) is used to represent the relation among multiple objects, and both event-driven first-order and second-order proximities are defined to measure the object relevance according to the quantities and properties of relations. We theoretically prove how event-driven proximities can be preserved in the embedding space by Event2vec, which utilizes event embeddings to facilitate learning the object embeddings. Experimental studies demonstrate the advantages of Event2vec over state-of-the-art algorithms on four real-world datasets and three network analysis tasks (including network reconstruction, link prediction, and node classification).
Cite
@article{arxiv.1901.10234,
title = {Representation Learning for Heterogeneous Information Networks via Embedding Events},
author = {Guoji Fu and Bo Yuan and Qiqi Duan and Xin Yao},
journal= {arXiv preprint arXiv:1901.10234},
year = {2019}
}