TY - GEN
T1 - Quality driven web services replication using directed acyclic graph coding
AU - Liu, An
AU - Li, Qing
AU - Huang, Liusheng
PY - 2011/10/19
Y1 - 2011/10/19
N2 - Web services cannot be always available as they are typically deployed in a dynamic environment. As an effective approach to improving Web services availability, replication has received much attention recently. How to design an optimal replication scheme with the best QoS, however, remains an open problem due to its inherent computational hardness. In this paper, we propose an efficient approach to designing a near-optimal replication scheme. We adopt directed acyclic graph (DAG) as the modeling tool for replication scheme and then utilize DAG coding for performance optimization. Simulation results show our approach can generate a near-optimal replication scheme with acceptable computation overheads.
AB - Web services cannot be always available as they are typically deployed in a dynamic environment. As an effective approach to improving Web services availability, replication has received much attention recently. How to design an optimal replication scheme with the best QoS, however, remains an open problem due to its inherent computational hardness. In this paper, we propose an efficient approach to designing a near-optimal replication scheme. We adopt directed acyclic graph (DAG) as the modeling tool for replication scheme and then utilize DAG coding for performance optimization. Simulation results show our approach can generate a near-optimal replication scheme with acceptable computation overheads.
UR - http://www.scopus.com/inward/record.url?scp=80054052209&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-24434-6_28
DO - 10.1007/978-3-642-24434-6_28
M3 - Conference article published in proceeding or book
AN - SCOPUS:80054052209
SN - 9783642244339
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 322
EP - 329
BT - Web Information System Engineering, WISE 2011 - 12th International Conference, Proceedings
T2 - 12th International Conference on Web Information System Engineering, WISE 2011
Y2 - 13 October 2011 through 14 October 2011
ER -