Wavelet-based histograms for selectivity estimation
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
Selectivity estimation in spatial databases
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Selectivity estimation using probabilistic models
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
Wavelet synopses with error guarantees
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Selectivity Estimation for Spatial Joins with Geometric Selections
EDBT '02 Proceedings of the 8th International Conference on Extending Database Technology: Advances in Database Technology
Selectivity Estimation for Spatial Joins
Proceedings of the 17th International Conference on Data Engineering
Analyzing Range Queries on Spatial Data
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Spatial Selectivity Estimation Using Cumulative Density Wavelet Histogram
ICIC '07 Proceedings of the 3rd International Conference on Intelligent Computing: Advanced Intelligent Computing Theories and Applications. With Aspects of Artificial Intelligence
Estimating Selectivity for Current Query of Moving Objects Using Index-Based Histogram
ICIC '07 Proceedings of the 3rd International Conference on Intelligent Computing: Advanced Intelligent Computing Theories and Applications. With Aspects of Artificial Intelligence
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Selectivity estimation for spatial query is very important process in finding the most efficient execution plan. Many works have been performed to estimate accurate selectivity. However, the existing works require a large amount of memory to retain accurate selectivity, and these works can not get good results in little memory environments such as mobile-based small database. In order to solve this problem, we propose a new technique called MW histogram which is able to compress summary data and get reasonable results. The proposed method is based on the spatial partitioning algorithm of MinSkew histogram and wavelet transformation. The experimental results showed that the MW histogram has lower relative error than MinSkew histogram and gets a good selectivity in little memory.