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IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishIn this paper we describe a demo concerning the management of uncertain schemata. Many works have studied the problem of representing uncertainty on attribute values or tuples, like the fact that a value is 10 with probability .3 or 20 with probability .7, leading to the implementation of probabilistic database management systems. In our demo we deal with the representation of uncertainty about the meta-data, i.e., about the meaning of these values. Us- ing our system it is possible to create alternative proba- bilistic schemata on a database, execute queries over uncertain schemata and verify how this additional information is stored in an underlying relational database and how queries are executed.
| Titolo: | Us-sql: Managing uncertain schemata |
| Autore/i: | MAGNANI, MATTEO; MONTESI, DANILO |
| Autore/i Unibo: | |
| Anno: | 2010 |
| Titolo del libro: | Proceedings of the 2010 international conference on Management of data |
| Pagina iniziale: | 1195 |
| Pagina finale: | 1198 |
| Abstract: | In this paper we describe a demo concerning the management of uncertain schemata. Many works have studied the problem of representing uncertainty on attribute values or tuples, like the fact that a value is 10 with probability .3 or 20 with probability .7, leading to the implementation of probabilistic database management systems. In our demo we deal with the representation of uncertainty about the meta-data, i.e., about the meaning of these values. Us- ing our system it is possible to create alternative proba- bilistic schemata on a database, execute queries over uncertain schemata and verify how this additional information is stored in an underlying relational database and how queries are executed. |
| Data prodotto definitivo in UGOV: | 20-feb-2011 |
| Appare nelle tipologie: | 4.01 Contributo in Atti di convegno |
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