Search Results for author: Sotirios P. Chatzis

Found 3 papers, 0 papers with code

Deep Network Regularization via Bayesian Inference of Synaptic Connectivity

no code implementations4 Mar 2018 Harris Partaourides, Sotirios P. Chatzis

To alleviate this burden, in this paper we regard the DNN regularization problem from a Bayesian inference perspective: We impose a sparsity-inducing prior over the network synaptic weights, where the sparsity is induced by a set of Bernoulli-distributed binary variables with Beta (hyper-)priors over their prior parameters.

Bayesian Inference Variational Inference

A Nonparametric Bayesian Approach Toward Stacked Convolutional Independent Component Analysis

no code implementations ICCV 2015 Sotirios P. Chatzis

Unsupervised feature learning algorithms based on convolutional formulations of independent components analysis (ICA) have been demonstrated to yield state-of-the-art results in several action recognition benchmarks.

Action Recognition Temporal Action Localization +1

Indian Buffet Process Deep Generative Models for Semi-Supervised Classification

no code implementations14 Feb 2014 Sotirios P. Chatzis

Based on this inspiration, in this paper we examine whether similar ideas from the field of Bayesian nonparametrics can be utilized in the context of modern DGMs in order to address the latent variable dimensionality inference problem.

Classification General Classification +1

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