Multi-dimensional selectivity estimation method using compressed histogram information압축 히스토그램 정보를 사용한 다차원 선택률 추정기법
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | 정진완 | ko |
| dc.date.accessioned | 2017-12-20T11:14:09Z | - |
| dc.date.available | 2017-12-20T11:14:09Z | - |
| dc.date.issued | 2001-10-30 | - |
| dc.identifier.uri | http://hdl.handle.net/10203/233651 | - |
| dc.description.abstract | Disclosed is a multi-dimensional selectivity estimation method using compressed histogram information which the database query optimizer in a database management system uses to find the most efficient execution plan among all possible plans. The method includes the several steps to generate a large number of small-sized multi-dimensional histogram buckets, sampling DCT coefficients which have high values with high probability, compressing information from the multi-dimensional histogram buckets using a multi-dimensional discrete cosine transform(DCT) and storing compressed information, and estimating the query selectivity by using compressed and stored histogram information as the statistics. | - |
| dc.title | Multi-dimensional selectivity estimation method using compressed histogram information | - |
| dc.title.alternative | 압축 히스토그램 정보를 사용한 다차원 선택률 추정기법 | - |
| dc.type | Patent | - |
| dc.type.rims | PAT | - |
| dc.contributor.localauthor | 정진완 | - |
| dc.contributor.assignee | KAIST | - |
| dc.identifier.iprsType | 특허 | - |
| dc.identifier.patentApplicationNumber | 09273131 | - |
| dc.identifier.patentRegistrationNumber | 6311181 | - |
| dc.date.application | 1999-03-19 | - |
| dc.date.registration | 2001-10-30 | - |
| dc.publisher.country | US | - |
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