In a scenario with “traditional” and “multimedia” data sources, this position paper discusses the following question: “How can a multimedia local source (e.g., Windsurf) supporting ranking queries be integrated into a mediator system without such capabilities (e.g., MOMIS)?” More precisely, “How to support ranking queries coming from a multimedia local source within a mediator system with a “traditional” query processor based on an SQL-engine?” We first describe a na¨ıve approach for the execution of range and Top-K global queries where the MOMIS query processing method remains substantially unchanged, but, in the case of Top-K queries, it does not guarantee to obtain K results. We then discuss two alternative modalities for allowing MOMIS to return the Top-K best results of a global query.

MOMIS Goes Multimedia: WINDSURF and the Case of Top-K Queries / Bartolini, Iaria; Beneventano, Domenico; Bergamaschi, Sonia; Ciaccia, Paolo; Corni, Alberto; Orsini, Mirko; Patella, Marco; Santese, MARCO MARIA. - STAMPA. - (2015), pp. 200-207. ((Intervento presentato al convegno Italian Symposium on Advanced Database Systems (SEBD - Sistemi Evoluti per Basi di Dati) tenutosi a Gaeta nel 14-17 June 2015.

MOMIS Goes Multimedia: WINDSURF and the Case of Top-K Queries

BENEVENTANO, Domenico;BERGAMASCHI, Sonia;CORNI, Alberto;ORSINI, Mirko;SANTESE, MARCO MARIA
2015

Abstract

In a scenario with “traditional” and “multimedia” data sources, this position paper discusses the following question: “How can a multimedia local source (e.g., Windsurf) supporting ranking queries be integrated into a mediator system without such capabilities (e.g., MOMIS)?” More precisely, “How to support ranking queries coming from a multimedia local source within a mediator system with a “traditional” query processor based on an SQL-engine?” We first describe a na¨ıve approach for the execution of range and Top-K global queries where the MOMIS query processing method remains substantially unchanged, but, in the case of Top-K queries, it does not guarantee to obtain K results. We then discuss two alternative modalities for allowing MOMIS to return the Top-K best results of a global query.
Italian Symposium on Advanced Database Systems (SEBD - Sistemi Evoluti per Basi di Dati)
Gaeta
14-17 June 2015
200
207
Bartolini, Iaria; Beneventano, Domenico; Bergamaschi, Sonia; Ciaccia, Paolo; Corni, Alberto; Orsini, Mirko; Patella, Marco; Santese, MARCO MARIA
MOMIS Goes Multimedia: WINDSURF and the Case of Top-K Queries / Bartolini, Iaria; Beneventano, Domenico; Bergamaschi, Sonia; Ciaccia, Paolo; Corni, Alberto; Orsini, Mirko; Patella, Marco; Santese, MARCO MARIA. - STAMPA. - (2015), pp. 200-207. ((Intervento presentato al convegno Italian Symposium on Advanced Database Systems (SEBD - Sistemi Evoluti per Basi di Dati) tenutosi a Gaeta nel 14-17 June 2015.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1084005
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