NDLI: Bayesian Changepoint Detection Through Switching Regressions: Contact Point Determination in Material Indentation Experiments

Content Provider	IEEE Xplore Digital Library
Author	Yuen, Shelten G. Rudoy, Daniel Howe, Robert D. Wolfe, Patrick J.
Copyright Year	2007
Description	Author affiliation: School of Engineering and Applied Sciences, Department of Statistics, Harvard University, Harvard-MIT Division of Health Sciences & Technology, Oxford Street, Cambridge, MA 02138 USA. sgyuen@seas.harvard.edu (Yuen, Shelten G.) \|\| School of Engineering and Applied Sciences, Department of Statistics, Harvard University, Harvard-MIT Division of Health Sciences & Technology, Oxford Street, Cambridge, MA 02138 USA. patrick@seas.harvard.edu (Wolfe, Patrick J.) \|\| School of Engineering and Applied Sciences, Department of Statistics, Harvard University, Harvard-MIT Division of Health Sciences & Technology, Oxford Street, Cambridge, MA 02138 USA. rudoy@seas.harvard.edu (Rudoy, Daniel) \|\| School of Engineering and Applied Sciences, Department of Statistics, Harvard University, Harvard-MIT Division of Health Sciences & Technology, Oxford Street, Cambridge, MA 02138 USA. howe@seas.harvard.edu (Howe, Robert D.)
Abstract	Material indentation is a popular method for determining the mechanical properties of biomaterials. The basic premise of an indentation experiment is to physically displace the sample using an indenter that measures resistive force, in order to formulate a force-displacement curve. However, doing so requires estimating the initial contact event between the indenter and the sample¿a statistical changepoint detection problem that has not been rigorously addressed in the biomaterials literature to date. Here we adopt a hierarchical Bayesian approach to contact point determination based on switching regressions, which generalizes an algorithm popular with practitioners and enables both hyperparameter estimation as well as uncertainty quantification. Results using several experimentally obtained silicone indentation data sets indicate that our approach outperforms existing techniques.
Starting Page	104
Ending Page	108
File Size	313583
Page Count	5
File Format	PDF
ISBN	9781424411979
DOI	10.1109/SSP.2007.4301227
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-08-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bayesian methods Force measurement Biological materials Uncertainty Atomic force microscopy Position measurement Material properties Mechanical factors Displacement measurement Polynomials soft tissue mechanics changepoint detection switching regressions Bayesian estimation material indentation
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