HAHE: Hierarchical Attentive Heterogeneous Information Network Embedding

by   Sheng Zhou, et al.

Given the intractability of large scale HIN, network embedding which learns low dimensional proximity-preserved representations for nodes in the new space becomes a natural way to analyse HIN. However, two challenges arise in HIN embedding. (1) Different HIN structures with different semantic meanings play different roles in capturing relationships among nodes in HIN, how can we learn personalized preferences over different meta-paths for each individual node in HIN? (2) With the number of large scale HIN increasing dramatically in various web services, how can we update the embedding information of new nodes in an efficient way? To tackle these challenges, we propose a Hierarchical Attentive Heterogeneous information network Embedding (HAHE ) model which is capable of learning personalized meta-path preferences for each node as well as updating the embedding information for each new node efficiently with only its neighbor node information. The proposed HAHE model extracts the semantic relationships among nodes in the semantic space based on different meta-paths and adopts a neighborhood attention layer to conduct weighted aggregations of neighborhood structure features for each node, enabling the embedding information of each new node to be updated efficiently. Besides, a meta-path attention layer is also employed to learn the personalized meta-path preferences for each individual node. Extensive experiments on several real-world datasets show that our proposed HAHE model significantly outperforms the state-of-the-art methods in terms of various evaluation metrics.


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