Variational Inference For Probabilistic Latent Tensor Factorization with KL Divergence

Probabilistic Latent Tensor Factorization (PLTF) is a recently proposed probabilistic framework for modelling multi-way data. Not only the common tensor factorization models but also any arbitrary tensor factorization structure can be realized by the PLTF framework. This paper presents full Bayesian inference via variational Bayes that facilitates more powerful modelling and allows more sophisticated inference on the PLTF framework. We illustrate our approach on model order selection and link prediction. Keywords-Probabilistic Latent Tensor Factorization(PLTF); Variational Bayes(VB); Link Prediction; missing data