Name
Abstract | ||
|---|---|---|
In this paper, we are interested in taking preferences into account for a family of queries inspired by the relational division. A division query aims at retrieving the elements associated with a specified set of values and usually the results remain not discriminated. So, we suggest the introduction of preferences inside such queries with the following specificities: (i) the user gives his/her preferences in an ordinal way and (ii) the preferences apply to the divisor which is defined as a hierarchy of sets. Different uses of the hierarchy are investigated, which leads to queries conveying different semantics and the property of the result in terms of a quotient is studied. Special attention is paid to the implementation of such extended division queries using a regular database management system along which some experiments to support the feasibility of the approach. Moreover, the issue of empty or overabundant answers is dealt with. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1007/s10844-010-0147-y | International Syposium on Methodologies for Intelligent Systems |
Keywords | Field | DocType |
different semantics,special attention,regular database management system,following specificities,overabundant answer,relational database · division · preference · ordinal scale · empty answers · overabundant answers,relational division,extended division,division query,ordinal preference,different use,relational database,division | Data mining,Ordinal Scale,Relational database,Ordinal number,Computer science,Quotient,Hierarchy,Divisor,Semantics | Journal |
Volume | Issue | ISSN |
37 | 3 | 0925-9902 |
Citations | PageRank | References |
1 | 0.35 | 9 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Patrick Bosc | 1 | 601 | 75.23 |
| Olivier Pivert | 2 | 891 | 101.81 |
| Olivier Soufflet | 3 | 4 | 1.12 |