کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
425496 685756 2008 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Grid query optimizer to improve query processing in grids
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نظریه محاسباتی و ریاضیات
پیش نمایش صفحه اول مقاله
Grid query optimizer to improve query processing in grids
چکیده انگلیسی

The emergence of computational grids, as global computing infrastructures, calls for development of new and advanced database techniques. While there exist algorithms and tools that facilitate database operations in grids, currently query optimization techniques are scant. In this paper, a query optimization technique, Grid Query Optimizer (GQO), that improves overall response time for grid-based query processing is presented. GQO features a resource selection strategy and a generic parallelism processing algorithm to balance optimization cost and query execution. GQO is tested using a simulated grid environment and compared with two other optimization techniques. Experiment results show that GQO provides better-than-average performance and is especially suitable for queries with large search spaces.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Future Generation Computer Systems - Volume 24, Issue 5, May 2008, Pages 342–353
نویسندگان
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