Statistical representation of skewed data
US7386536B1 · kind B1 · utility
9Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2003 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | May 27, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99943
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, database system, and computer program for collecting statistics about a table are disclosed. The table includes one or more rows and each row includes a respective value. The method includes creating zero or more histogram buckets. Each histogram bucket includes a width representing a respective range of values and a height representing a count of rows having values in the range of values. The method further includes creating one or more high-bias buckets, each high-bias bucket represents one or more values that appear in a minimum percentage of rows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.