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Hey there's DALILA: a DictionAry LearnIng LibrAry

Authors Veronica Tozzo, Vanessa D'Amario, Annalisa Barla

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Veronica Tozzo
Vanessa D'Amario
Annalisa Barla

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Veronica Tozzo, Vanessa D'Amario, and Annalisa Barla. Hey there's DALILA: a DictionAry LearnIng LibrAry. In 2017 Imperial College Computing Student Workshop (ICCSW 2017). Open Access Series in Informatics (OASIcs), Volume 60, pp. 6:1-6:14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018) https://doi.org/10.4230/OASIcs.ICCSW.2017.6

Abstract

Dictionary Learning and Representation Learning are machine learning methods for decomposition, denoising and reconstruction of data with a wide range of applications such as text recognition, image processing and biological processes understanding. In this work we present DALILA, a scientific Python library for regularised dictionary learning and regularised representation learning that allows to impose prior knowledge, if available. DALILA, differently from the others available libraries for this purpose, is flexible and modular. DALILA is designed to be easily extended for custom needs. Moreover, it is compliant with the most widespread ML Python library and this allows for a straightforward usage and integration.
We here present and discuss the theoretical aspects and discuss its strength points and implementation.

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Keywords
  • Machine learning
  • dictionary learning
  • representation learning
  • alternating proximal gradient descent
  • parallel computing

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