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Johan A. du Preez

3 papers here

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • last author3

Across the 3 of 3 papers where every author was matched, so the position is known.

fields
  • cs.LG2
  • eess.AS1
ORCID 0000-0001-6775-9220

identity via Semantic Scholar / OpenAlex

most citedA Temporal Extension of Latent Dirichlet Allocation for Unsupervised Acoustic Unit Discovery

1 citations · 1 across the 3 of their papers we have counts for

collaborators

3 papers

cs.LG2022

Rail break and derailment prediction using Probabilistic Graphical Modelling

Rebecca M. C. Taylor, Johan A. du Preez

Rail breaks are one of the most common causes of derailments internationally. This is no different for the South African Iron Ore line. Many rail breaks occur as a heavy-haul train…

cs.LG2022

SimLDA: A tool for topic model evaluation

Rebecca M. C. Taylor, Johan A. du Preez

Variational Bayes (VB) applied to latent Dirichlet allocation (LDA) has become the most popular algorithm for aspect modeling. While sufficiently successful in text topic extractio…

eess.AS2022★ 1 cited

A Temporal Extension of Latent Dirichlet Allocation for Unsupervised Acoustic Unit Discovery

Werner van der Merwe, Herman Kamper, Johan du Preez

Latent Dirichlet allocation (LDA) is widely used for unsupervised topic modelling on sets of documents. No temporal information is used in the model. However, there is often a rela…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.