Text-mining the neurosynth corpus using deep boltzmann machines

Ricardo Monti, Romy Lorenz, Robert Leech, Christoforos Anagnostopoulos, Giovanni Montana

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

4 Citations (Scopus)

Abstract

Large-scale automated meta-analysis of neuroimaging data has recently established itself as an important tool in advancing our understanding of human brain function. This research has been pioneered by NeuroSynth, a database collecting both brain activation coordinates and associated text across a large cohort of neuroimaging research papers. One of the fundamental aspects of such meta-analysis is text-mining. To date, word counts and more sophisticated methods such as Latent Dirichlet Allocation have been proposed. In this work we present an unsupervised study of the NeuroSynth text corpus using Deep Boltzmann Machines (DBMs). The use of DBMs yields several advantages over the aforementioned methods, principal among which is the fact that it yields both word and document embeddings in a high-dimensional vector space. Such embeddings serve to facilitate the use of traditional machine learning techniques on the text corpus. The proposed DBM model is shown to learn embeddings with a clear semantic structure.

Original languageEnglish
Title of host publicationPRNI 2016 - 6th International Workshop on Pattern Recognition in Neuroimaging
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467365307
DOIs
Publication statusPublished - 24 Aug 2016
Event6th International Workshop on Pattern Recognition in Neuroimaging, PRNI 2016 - Trento, Italy
Duration: 22 Jun 201624 Jun 2016

Conference

Conference6th International Workshop on Pattern Recognition in Neuroimaging, PRNI 2016
Country/TerritoryItaly
CityTrento
Period22/06/201624/06/2016

Keywords

  • Deep Boltzmann machines
  • Meta-Analysis
  • text-mining
  • topic models

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