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\iteman{io-port 06094988}
\itemau{Lin, Hailun; Zhang, Cheng; Zhang, Peng}
\itemti{An optimization strategy for mashups performance based on relational algebra.}
\itemso{Sheng, Quan Z. (ed.) et al., Web technologies and applications. 14th Asia-Pacific web conference, APWeb 2012, Kunming, China, April 11--13, 2012. Proceedings. Berlin: Springer (ISBN 978-3-642-29252-1/pbk). Lecture Notes in Computer Science 7235, 366-375 (2012).}
\itemab
Summary: Recently, mashups as a new type of application have gained tremendous popularity, which provide opportunities of creating personalized Web applications using Internet-based resources to end-users. Meanwhile, the performance of mashups can not be neglected while the end-users participate in mashups construction. Nowadays, there is a lot of research work with a focus on developing tools or platforms to support mashups construction. However, there are few studies concerned about the performance of mashups. In order to improve mashups performance, this paper draws on experience of relational algebra query optimization to establish mashup query-tree model and mashup operator performance model, and defines mashup operators' equivalent transformation rules and query-tree heuristic rules. On this basis, this paper proposes an optimization algorithm for mashups performance. Experiments show that our strategy can effectively improve the run-time performance of mashups.
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\itemut{Web2.0; mashup; relational algebra; query optimization}
\itemli{doi:10.1007/978-3-642-29253-8\_31}
\end