Search Results for author: Cinzia Viroli

Found 5 papers, 2 papers with code

Mixed data Deep Gaussian Mixture Model: A clustering model for mixed datasets

1 code implementation13 Oct 2020 Robin Fuchs, Denys Pommeret, Cinzia Viroli

In this work we introduce a multilayer architecture model-based clustering method called Mixed Deep Gaussian Mixture Model (MDGMM) that can be viewed as an automatic way to merge the clustering performed separately on continuous and non-continuous data.

Clustering

Deep Mixtures of Unigrams for uncovering Topics in Textual Data

no code implementations18 Feb 2019 Cinzia Viroli, Laura Anderlucci

Mixtures of Unigrams are one of the simplest and most efficient tools for clustering textual data, as they assume that documents related to the same topic have similar distributions of terms, naturally described by Multinomials.

Classification Clustering +1

Classifying textual data: shallow, deep and ensemble methods

no code implementations18 Feb 2019 Laura Anderlucci, Lucia Guastadisegni, Cinzia Viroli

This paper focuses on a comparative evaluation of the most common and modern methods for text classification, including the recent deep learning strategies and ensemble methods.

General Classification text-classification +1

Deep Gaussian Mixture Models

no code implementations18 Nov 2017 Cinzia Viroli, Geoffrey J. McLachlan

Deep learning is a hierarchical inference method formed by subsequent multiple layers of learning able to more efficiently describe complex relationships.

Dimensionality Reduction

Infinite Mixtures of Infinite Factor Analysers

1 code implementation24 Jan 2017 Keefe Murphy, Isobel Claire Gormley, Cinzia Viroli

Factor-analytic Gaussian mixture models are often employed as a model-based approach to clustering high-dimensional data.

Methodology

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