Topic modelling for routine discovery from egocentric photo-streams

Estefanía Talavera Martínez*, Nicolai Petkov, Petia Radeva

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
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Abstract

Developing tools to understand and visualize lifestyle is of high interest when addressing the improvement of habits and well-being of people. Routine, defined as the usual things that a person does daily, helps describe the individuals’ lifestyle. With this paper, we are the first ones to address the development of novel tools for automatic discovery of routine days of an individual from his/her egocentric images. In the proposed model, sequences of images are firstly characterized by semantic labels detected by pre-trained CNNs. Then, these features are organized in temporal-semantic documents to later be embedded into a topic models space. Finally, Dynamic-Time-Warping and Spectral-Clustering methods are used for final day routine/non-routine discrimination. Moreover, we introduce a new EgoRoutine-dataset, a collection of 104 egocentric days with more than 100.000 images recorded by 7 users. Results show that routine can be discovered and behavioural patterns can be observed.

Original languageEnglish
Article number 107330
Number of pages14
JournalPattern recognition
Volume104
DOIs
Publication statusPublished - Aug-2020

Keywords

  • routine
  • egocentric vision
  • lifestyle
  • behaviour analysis
  • topic modelling

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