NDLI: Hydrologic model calibration using fuzzy TSK surrogate model

Content Provider	IEEE Xplore Digital Library
Author	Kamali, M. Ponnambalam, P. Soulis, E.D.
Copyright Year	2005
Description	Author affiliation: Dept. of Syst. Design Eng., Waterloo Univ., Ont., Canada (Kamali, M.; Ponnambalam, P.)
Abstract	In order to find the best parameter set of a hydrologic model, error minimization is often used. In this case, optimization is performed using fuzzy TSK surrogate model, a fuzzy Tagaki Sugeno Kang based method chosen for its efficiency and robustness. Parameter space exploration is performed using the surrogate model, thus avoiding the use of the computationally expensive full model. The dimensionality of the problem is not very high (requires the calibration of 15-150 parameters), however the computational cost for the evaluation of the cost function is significant. In order to evaluate the cost function for a single set of parameters, 2hrs (for watersheds smaller than 100 km/sup 2/) to 24 hrs (for watersheds larger than 100,000 km/sup 2/) of computer time is required. To avoid this cost, the surrogate model is constructed to approximate the actual model, which maps the known data points. Since the surrogate model is inexpensive to evaluate, we can explore the model space and find the optimum value cheaply. In each iteration, the surrogate model is used to predict the minimizer of the actual model, then the actual model is evaluated at the predicted minimizer and the surrogate is updated to include the new data. This process continues until sufficient cost function (error) reduction is achieved.
Starting Page	799
Ending Page	803
File Size	1002406
Page Count	5
File Format	PDF
ISBN	078039187X
DOI	10.1109/NAFIPS.2005.1548642
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Calibration Cost function Predictive models Design engineering Optimization methods Space exploration Parameter estimation Performance evaluation Computational efficiency Search methods
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	Mr. Siddhartha Mukherjee siddhartha@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	ndl-support@iitkgp.ac.in
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7	National Digital Libarray 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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