Title
Efficient energy-based embedding models for link prediction in knowledge graphs.
Abstract
We focus on the problem of link prediction in Knowledge Graphs, with the goal of discovering new facts. To this purpose, Energy-Based Models for Knowledge Graphs that embed entities and relations in continuous vector spaces have been largely used. The main limitation in their applicability lies in the parameter learning phase, which may require a large amount of time for converging to optimal solutions. In this article, we first propose an unified view on different Energy-Based Embedding Models. Hence, for improving the model training phase, we propose the adoption of adaptive learning rates. We show that, by adopting adaptive learning rates during training, we can improve the efficiency of the parameter learning process by an order of magnitude, while leading to more accurate link prediction models in a significantly lower number of iterations. We extensively evaluate the proposed learning procedure on a variety of new models: our result show a significant improvement over state-of-the-art link prediction methods on two large Knowledge Graphs, namely WordNet and Freebase.
Year
DOI
Venue
2016
10.1007/s10844-016-0414-7
J. Intell. Inf. Syst.
Keywords
Field
DocType
Energy-based embedding models,Link predictions,RDF knowledge graphs
Data mining,Knowledge graph,Computer science,Parameter learning,Theoretical computer science,Artificial intelligence,Predictive modelling,WordNet,Vector space,Embedding,Efficient energy use,Adaptive learning,Machine learning
Journal
Volume
Issue
ISSN
47
1
0925-9902
Citations 
PageRank 
References 
5
0.43
15
Authors
3
Name
Order
Citations
PageRank
Pasquale Minervini111916.34
Claudia D'Amato273357.03
Nicola Fanizzi3112490.54