Author
Listed:
- Damla Oguz
(Institute of Research in Computer Science of Toulouse (IRIT), Paul Sabatier University, Toulouse, France & Department of Computer Engineering, Izmir Institute of Technology, Izmir, Turkey & Department of Computer Engineering, Ege University, Izmir, Turkey)
- Shaoyi Yin
(Institute of Research in Computer Science of Toulouse (IRIT), Paul Sabatier University, Toulouse, France)
- Belgin Ergenç
(Department of Computer Engineering, Izmir Institute of Technology, Izmir, Turkey)
- Abdelkader Hameurlain
(Institute of Research in Computer Science of Toulouse (IRIT), Paul Sabatier University, Toulouse, France)
- Oguz Dikenelli
(Department of Computer Engineering, Ege University, Izmir, Turkey)
Abstract
The goal of query optimization in query federation over linked data is to minimize the response time and the completion time. Communication time has the highest impact on them both. Static query optimization can end up with inefficient execution plans due to unpredictable data arrival rates and missing statistics. This study is an extension of adaptive join operator which always begins with symmetric hash join to minimize the response time, and can change the join method to bind join to minimize the completion time. The authors extend adaptive join operator with bind-bloom join to further reduce the communication time and, consequently, to minimize the completion time. They compare the new operator with symmetric hash join, bind join, bind-bloom join, and adaptive join operator with respect to the response time and the completion time. Performance evaluation shows that the extended operator provides optimal response time and further reduces the completion time. Moreover, it has the adaptation ability to different data arrival rates.
Suggested Citation
Damla Oguz & Shaoyi Yin & Belgin Ergenç & Abdelkader Hameurlain & Oguz Dikenelli, 2017.
"Extended Adaptive Join Operator with Bind-Bloom Join for Federated SPARQL Queries,"
International Journal of Data Warehousing and Mining (IJDWM), IGI Global, vol. 13(3), pages 47-72, July.
Handle:
RePEc:igg:jdwm00:v:13:y:2017:i:3:p:47-72
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