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Abstract: In this paper, we propose a new method for estimating query cost in client-server based heterogeneous database management system. The cost estimation parameters are adjusted by an Adaptive Cost Estimation (ACE) module which uses query execution feedback yielding more and more accurate cost estimates. The most important features of ACE are its detailed cost model which accounts for all costs incurred, its rapid convergence to the actual parameter values, and its low overhead which permits... (Update)
Context of citations to this paper: More
...and 2) choosing between a nested loops with an index scan over the inner relation and a hash join. Several research papers [DKS92, YCR96, ZL96] address the issue of query cost estimation for heterogeneous DBMSs. In all these papers, the authors use a calibration process for...
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BibTeX entry: (Update)
Yao, Z., Chen, C., and Roussopoulos, N., "Adaptive Cost Estimation for Client-Server based Heterogeneous Database Systems," University of Maryland Report, CS-TR-3648, May 1996. http://citeseer.ist.psu.edu/yao96adaptive.html More
@techreport{ yao96adaptive,
author = "Zhaohui Yao and Chungmin Melvin Chen and Nick Roussopoulos",
title = "Adaptive Cost Estimation for Client-Server based Heterogeneous Database Systems",
number = "CS-TR-3648",
year = "1996",
url = "citeseer.ist.psu.edu/yao96adaptive.html" }
Citations (may not include all citations):511 Federated Database Systems for Managing Distributed (context) - Sheth, Larson - 1990
389 Access Path Selection in a Relational Database Management Sy.. (context) - Selinger - 1979
311 Principles of Distributed Database Systems (context) - Ozsu, Valduriez - 1991
68 Query Optimization in Heterogeneous DBMS (context) - Du, Krishnamurthy et al. - 1992
49 Optimizer Validation and Performance Evaluation for Distribu.. (context) - Mackert, Lohman - 1986
46 Adaptive Selectivity Estimation Using Query Feedback - Chen, Roussopoulos - 1994
45 The Incremental Access Method of View Cache: Concept (context) - Roussopoulos - 1991
32 Recursive Estimation and Time-Series Analysis (context) - Young - 1984
24 Query Processing in Multidatabase System (context) - Dayal - 1985
19 A Query Sampling Method for Estimating Local Cost Parameters.. - Zhu, Larson - 1994
16 Reducing Multidatabase Query Response Time by Tree Balancing (context) - Du, Shan et al. - 1995
13 ADMS: A Testbed for Incremental Access Methods (context) - Roussopoulos, Economou et al. - 1993
11 Numerical Analysis --- A practical approach (context) - Maron - 1987
11 Management of Updates in the Enhanced Client-- Server DBMS - Delis, Roussopoulos - 1994
8 Principles and Techniques in the Design of ADMS \Sigma (context) - Roussopoulos, Kang - 1986
7 A Retrospective on the Wisconsin Benchmark (context) - Bitton, Turbyfill - 1994
4 Optimal Estimation (context) - Lee - 1964
3 Report on the Workshop on Heterogeneous Database Systems hel.. (context) - Scheuermann, Yu - 1989
1 Distributed Database Query Processing (context) - Kim - 1985
1 NFS Workshop on Heterogeneous Databases and Semantic Interop.. (context) - Lu, Shan et al. - 1992
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