A Probabilistic Semi-Supervised Approach with Triplet Markov Chains

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Abstract

Triplet Markov chains are general generative models for sequential data which take into account three kinds of random variables: (noisy) observations, their associated discrete labels and latent variables which aim at strengthening the distribution of the observations and their associated labels. However, in practice, we do not have at our disposal all the labels associated to the observations to estimate the parameters of such models. In this paper, we propose a general framework based on a variational Bayesian inference to train parameterized triplet Markov chain models in a semi-supervised context. The generality of our approach enables us to derive semisupervised algorithms for a variety of generative models for sequential Bayesian classification.

Original languageEnglish
Title of host publicationProceedings of the 2023 IEEE 33rd International Workshop on Machine Learning for Signal Processing, MLSP 2023
EditorsDanilo Comminiello, Michele Scarpiniti
PublisherIEEE Computer Society
ISBN (Electronic)9798350324112
DOIs
Publication statusPublished - 1 Jan 2023
Event33rd IEEE International Workshop on Machine Learning for Signal Processing, MLSP 2023 - Rome, Italy
Duration: 17 Sept 202320 Sept 2023

Publication series

NameIEEE International Workshop on Machine Learning for Signal Processing, MLSP
Volume2023-September
ISSN (Print)2161-0363
ISSN (Electronic)2161-0371

Conference

Conference33rd IEEE International Workshop on Machine Learning for Signal Processing, MLSP 2023
Country/TerritoryItaly
CityRome
Period17/09/2320/09/23

Keywords

  • Generative Models
  • Semi-Supervised Learning
  • Triplet Markov Chains
  • Variational Inference

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