| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | De Almeida, Fabio Renato | |
| dc.creator | Valencio, Carlos Roberto | |
| dc.creator | Ferrizzi, Andre Cid | |
| dc.creator | Tronco, Mario Luiz | |
| dc.creator | De Souza, Rogeria Cristiane Gratao | |
| dc.date | 2014-05-27T11:27:18Z | |
| dc.date | 2016-10-25T18:40:03Z | |
| dc.date | 2014-05-27T11:27:18Z | |
| dc.date | 2016-10-25T18:40:03Z | |
| dc.date | 2012-12-01 | |
| dc.date.accessioned | 2017-04-06T02:04:09Z | |
| dc.date.available | 2017-04-06T02:04:09Z | |
| dc.identifier | Parallel and Distributed Computing, Applications and Technologies, PDCAT Proceedings, p. 213-218. | |
| dc.identifier | http://hdl.handle.net/11449/73828 | |
| dc.identifier | http://acervodigital.unesp.br/handle/11449/73828 | |
| dc.identifier | 10.1109/PDCAT.2012.91 | |
| dc.identifier | 2-s2.0-84884667166 | |
| dc.identifier | http://dx.doi.org/10.1109/PDCAT.2012.91 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/894612 | |
| dc.description | Non-conventional database management systems are used to achieve a better performance when dealing with complex data. One fundamental concept of these systems is object identity (OID). Two techniques can be used for the implementation of OIDs: physical or logical. A logical implementation of OIDs, based on an Indirection Table, is used by NuGeM, a multimedia data manager kernel which is described in this paper. NuGeM Indirection Table allows the relocation of all pages in a database. The proposed strategy modifies the workings of this table so that it is possible to reduce considerably the number of I/O operations during the request and release of pages containing objects and their OIDs. Tests show a reduction of 84% in reading operations and a 67% reduction in writing operations when pages are requested. Although no changes were observed in writing operations during the release of pages, a 100% of reduction in reading operations was obtained. © 2012 IEEE. | |
| dc.language | eng | |
| dc.relation | Parallel and Distributed Computing, Applications and Technologies, PDCAT Proceedings | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.subject | b+ tree | |
| dc.subject | complex data | |
| dc.subject | direct mapping | |
| dc.subject | hashing | |
| dc.subject | indirect mapping | |
| dc.subject | indirection table | |
| dc.subject | NuGeM | |
| dc.subject | object identifier | |
| dc.subject | object identity | |
| dc.subject | oid | |
| dc.subject | OODBMS | |
| dc.title | Managing object identity with less I/O operations | |
| dc.type | Otro | |
