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Repairing and Querying Databases under Aggregate Constraints
Research has deeply investigated several issues related to the use of integrity constraints on relational databases. In particular, a great deal of attention has been devoted to the problem of extracting "reliable" information from databases containing pieces of information inconsistent wi...
| Clasificación: | Libro Electrónico |
|---|---|
| Autores principales: | , , |
| Autor Corporativo: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
New York, NY :
Springer New York : Imprint: Springer,
2011.
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| Edición: | 1st ed. 2011. |
| Colección: | SpringerBriefs in Computer Science,
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| Temas: | |
| Acceso en línea: | Texto Completo |
MARC
| LEADER | 00000nam a22000005i 4500 | ||
|---|---|---|---|
| 001 | 978-1-4614-1641-8 | ||
| 003 | DE-He213 | ||
| 005 | 20220115191104.0 | ||
| 007 | cr nn 008mamaa | ||
| 008 | 111018s2011 xxu| s |||| 0|eng d | ||
| 020 | |a 9781461416418 |9 978-1-4614-1641-8 | ||
| 024 | 7 | |a 10.1007/978-1-4614-1641-8 |2 doi | |
| 050 | 4 | |a QA76.9.D3 | |
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| 072 | 7 | |a COM021000 |2 bisacsh | |
| 072 | 7 | |a UN |2 thema | |
| 082 | 0 | 4 | |a 005.74 |2 23 |
| 100 | 1 | |a Flesca, Sergio. |e author. |4 aut |4 http://id.loc.gov/vocabulary/relators/aut | |
| 245 | 1 | 0 | |a Repairing and Querying Databases under Aggregate Constraints |h [electronic resource] / |c by Sergio Flesca, Filippo Furfaro, Francesco Parisi. |
| 250 | |a 1st ed. 2011. | ||
| 264 | 1 | |a New York, NY : |b Springer New York : |b Imprint: Springer, |c 2011. | |
| 300 | |a VIII, 61 p. |b online resource. | ||
| 336 | |a text |b txt |2 rdacontent | ||
| 337 | |a computer |b c |2 rdamedia | ||
| 338 | |a online resource |b cr |2 rdacarrier | ||
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| 490 | 1 | |a SpringerBriefs in Computer Science, |x 2191-5776 | |
| 505 | 0 | |a Introduction -- Preliminaries -- Repairing and Querying: the Fundamental Decision Problems -- Computing Card-minimal Repairs -- Consistent Answers to Aggregate Queries -- Possible Extensions and Open Problems -- References. | |
| 520 | |a Research has deeply investigated several issues related to the use of integrity constraints on relational databases. In particular, a great deal of attention has been devoted to the problem of extracting "reliable" information from databases containing pieces of information inconsistent with regard to some integrity constraints. In this manuscript, the problem of extracting consistent information from relational databases violating integrity constraints on numerical data is addressed. Aggregate constraints defined as linear inequalities on aggregate-sum queries on input data are considered. The notion of repair as consistent set of updates at attribute-value level is exploited, and the characterization of several data-complexity issues related to repairing data and computing consistent query answers is provided. Moreover, a method for computing "reasonable" repairs of inconsistent numerical databases is introduced, for a restricted but expressive class of aggregate constraints. An extension of this method for dealing with the data repairing problem in the presence of weak aggregate constraints which are expected to be satisfied, but not required to, is presented. Furthermore, a technique for computing consistent answers of aggregate queries in the presence of a wide form of aggregate constraints is provided. Finally, extensions of the framework as well as several open problems are discussed. | ||
| 650 | 0 | |a Database management. | |
| 650 | 1 | 4 | |a Database Management. |
| 700 | 1 | |a Furfaro, Filippo. |e author. |4 aut |4 http://id.loc.gov/vocabulary/relators/aut | |
| 700 | 1 | |a Parisi, Francesco. |e author. |4 aut |4 http://id.loc.gov/vocabulary/relators/aut | |
| 710 | 2 | |a SpringerLink (Online service) | |
| 773 | 0 | |t Springer Nature eBook | |
| 776 | 0 | 8 | |i Printed edition: |z 9781461416401 |
| 776 | 0 | 8 | |i Printed edition: |z 9781461416425 |
| 830 | 0 | |a SpringerBriefs in Computer Science, |x 2191-5776 | |
| 856 | 4 | 0 | |u https://doi.uam.elogim.com/10.1007/978-1-4614-1641-8 |z Texto Completo |
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| 950 | |a Computer Science (R0) (SpringerNature-43710) | ||