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Analysing Cooking Behaviour in Home Settings: Towards Health Monitoring

Research output: Contribution to journalArticle

Original languageEnglish
Article number646
Number of pages30
JournalSensors
Volume19
Issue number3
Early online date4 Feb 2019
DOIs
DateAccepted/In press - 1 Feb 2019
DateE-pub ahead of print - 4 Feb 2019
DatePublished (current) - Mar 2019

Abstract

Wellbeing is often affected by health-related conditions. Among them are nutrition-related health conditions, which can significantly decrease the quality of life. We envision a system that monitors the kitchen activities of patients and that based on the detected eating behaviour could provide clinicians with indicators for improving a patient's health. To be successful, such system has to reason about the person's actions and goals. To address this problem, we introduce a symbolic behaviour recognition approach, called Computational Causal Behaviour Models (CCBM). CCBM combines symbolic representation of person's behaviour with probabilistic inference to reason about one's actions, the type of meal being prepared, and its potential health impact. To evaluate the approach, we use a cooking dataset of unscripted kitchen activities, which contains data from various sensors in a real kitchen. The results show that the approach is able to reason about the person's cooking actions. It is also able to recognise the goal in terms of type of prepared meal and whether it is healthy. Furthermore, we compare CCBM to state-of-the-art approaches such as Hidden Markov Models (HMM) and decision trees (DT). The results show that our approach performs comparable to the HMM and DT when used for activity recognition. It outperformed the HMM for goal recognition of the type of meal with median accuracy of 1 compared to median accuracy of 0.12 when applying the HMM. Our approach also outperformed the HMM for recognising whether a meal is healthy with a median accuracy of 1 compared to median accuracy of 0.5 with the HMM.

    Research areas

  • activity recognition, behaviour monitoring, goal recognition, plan recognition, probabilistic models, sensor-based reasoning, symbolic models

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    Rights statement: This is the final published version of the article (version of record). It first appeared online via MDPI at https://www.mdpi.com/1424-8220/19/3/646 . Please refer to any applicable terms of use of the publisher.

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