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  4. Mind the Hazard: Modeling and Interpreting Comfort with Personalized Sensing
 
conference paper

Mind the Hazard: Modeling and Interpreting Comfort with Personalized Sensing

Zhang, Yufei  
•
Favero, Matteo  
•
Chwalek, Patrick
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October 29, 2024
BuildSys '24: Proceedings of the 11th ACM International Conference on Systems for Energy-Efficient Buildings, Cities, and Transportation
11th ACM International Conference on Systems for Energy-Efficient Buildings, Cities, and Transportation

Recent advances in personalized sensing and comfort feedback have spurred the development of data-driven comfort models tailored to individual needs. However, because current models treat sequential comfort feedback independently, they are subject to unstable predictions and limited interpretability, hindering their deployment in building management. This study introduces a dynamic modeling framework that utilizes a Neural Ordinary Differential Equations-based Continuous-time Markov Chain to model the transitions in comfort states over time. Our modeling approach, developed through a field study utilizing smart glasses and mobile app feedback, tracks occupants' comfort transitions across daily activities and contexts. The results demonstrate that this model not only predicts comfort states more accurately and stably than conventional classification models but also uniquely provides a representation of how the hazards of state transitions are influenced by changing ambient and contextual conditions. This approach, therefore, offers a new perspective on personalized building control, where predictions of comfort transition hazards can preemptively suggest building management interventions to avoid occupants experiencing discomfort. In addition, insights into how environmental and contextual characteristics relate to these hazards can guide holistic management strategies that dynamically balance comfort with energy targets in response to the occupants' activities and contexts.

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Type
conference paper
DOI
https://doi.org/10.1145/3671127.3698188
Author(s)
Zhang, Yufei  

EPFL

Favero, Matteo  

EPFL

Chwalek, Patrick

Massachusetts Institute of Technology

Zhong, Sailin

University of Fribourg

Lalanne, Denis

University of Fribourg

Paradiso, Joseph A.

Massachusetts Institute of Technology

Miller, Clayton

National University of Singapore

Sonta, Andrew  orcid-logo

EPFL

Date Issued

2024-10-29

Publisher

ACM - Association for Computing Machinery

Publisher place

New York, NY, USA

Published in
BuildSys '24: Proceedings of the 11th ACM International Conference on Systems for Energy-Efficient Buildings, Cities, and Transportation
DOI of the book
10.1145/3671127
ISBN of the book

979-8-4007-0706-3

Published in
Proceedings of the 11th ACM International Conference on Systems for Energy-Efficient Buildings, Cities, and Transportation
Start page

209

End page

213

Subjects

Indoor environment quality

•

Personalized comfort model

•

Wearable sensing

•

Continuous-time Markov Chain (CTMC)

•

Neural Ordinary Differential Equations (Neural ODEs)

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
ETHOS  
Event nameEvent acronymEvent placeEvent date
11th ACM International Conference on Systems for Energy-Efficient Buildings, Cities, and Transportation

BuildSys'24

Hangzhou, China

2024-11-07 - 2024-11-08

Available on Infoscience
March 14, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/247787
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