Name
Abstract | ||
|---|---|---|
Approximate is a query processor that makes approximate answers available if part of the data base is unavailable or there is not enough time to produce an exact answer. The accuracy of the approximate answers produced improves monotonicaIly with the amount of data retrieved to produce the result. We describe the approximation semantics of A pproximate that serves as the basis for meaningful approximations of both set- and single-valued queries. We show how APPROXIMATE is implemented to make effective use of semantic information, such as a distance function, to define and compare the accuracies of approximate answers with the exact answer. |
Year | DOI | Venue |
|---|---|---|
1994 | 10.1016/0164-1212(94)90046-9 | Journal of Systems and Software |
Keywords | Field | DocType |
single-valued query,producing approximate answer | Query language,Relational database,Computer science,Transactional analysis,Approximations of π,Metric (mathematics),Semantic information,Theoretical computer science,Semantics | Journal |
Volume | Issue | ISSN |
27 | 3 | The Journal of Systems & Software |
Citations | PageRank | References |
6 | 1.67 | 8 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Susan V. Vrbsky | 1 | 327 | 37.22 |
| Jane W.-S. Liu | 2 | 1399 | 337.97 |