TY - GEN
T1 - Composing geoinformatics workflows with user preferences
AU - Chiu, David
AU - Deshpande, Sagar
AU - Agrawal, Gagan
AU - Li, Rongxing
N1 - Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2008
Y1 - 2008
N2 - With the advent of the data grid came a novel distributed scientific computing paradigm known as service-oriented science. Among the plethora of systems included under this framework are scientific workflow management systems, which enable large-scale process scheduling and execution. To ensure quality of service, these systems typically seek to minimize workflow execution time as well as costs for slices of data grid access. The geospatial domain, among other sciences, involves yet another optimization factor, the accuracy of results. The relationship between execution time and workow accuracy can often be exploited to offer more exibility in handling user preferences. We present a system which meets user constraints through a dynamic adjustment of the accuracy of workflow results.
AB - With the advent of the data grid came a novel distributed scientific computing paradigm known as service-oriented science. Among the plethora of systems included under this framework are scientific workflow management systems, which enable large-scale process scheduling and execution. To ensure quality of service, these systems typically seek to minimize workflow execution time as well as costs for slices of data grid access. The geospatial domain, among other sciences, involves yet another optimization factor, the accuracy of results. The relationship between execution time and workow accuracy can often be exploited to offer more exibility in handling user preferences. We present a system which meets user constraints through a dynamic adjustment of the accuracy of workflow results.
UR - http://www.scopus.com/inward/record.url?scp=70449727203&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70449727203&partnerID=8YFLogxK
U2 - 10.1145/1463434.1463500
DO - 10.1145/1463434.1463500
M3 - Conference contribution
AN - SCOPUS:70449727203
SN - 9781605583235
T3 - GIS: Proceedings of the ACM International Symposium on Advances in Geographic Information Systems
SP - 423
EP - 426
BT - Proceedings of the 16th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM GIS 2008
T2 - 16th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM GIS 2008
Y2 - 5 November 2008 through 7 November 2008
ER -