NDLI: Look twice: Uncover hidden information in room climate sensor data

Content Provider	IEEE Xplore Digital Library
Author	Worner, Dominic von Bomhard, Thomas Roschlin, Marc Wortmann, Felix
Copyright Year	2014
Description	Author affiliation: Institute of Technology Management, University of St. Gallen, Switzerland (von Bomhard, Thomas; Wortmann, Felix) \|\| Department of Management, Technology and Economics, ETH Zurich, Switzerland (Worner, Dominic; Roschlin, Marc)
Abstract	Connected sensors are on the march to become pervasive. While they are often deployed for a single purpose it is worth to take a second look. In this study, we show that the widespread Netatmo weather station which is intended to monitor and improve indoor climate can be used to estimate binary occupancy of individual rooms. We collected data from 11 rooms in 3 apartments including binary occupancy for several days. We show that CO2 measurements and derivatives thereof qualify as observables to be used in Hidden Markov Models and achieve accuracies well above 75% in most cases. However, we see that the accuracy metric is often misleading for such timeseries data and consider additional performance metrics as well which show varying results depending on the respective occupancy patterns of a room.
Starting Page	25
Ending Page	30
File Size	1788647
Page Count	6
File Format	PDF
ISBN	9781479951543
DOI	10.1109/IOT.2014.7030110
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Internet of things Accuracy Hidden Markov models Estimation Meteorology
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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