Collaborative OLAP with Tag Clouds: Web 2.0 OLAP Formalism and Experimental Evaluation

Kamel, Aouiche; Lemire, Daniel et Godin, Robert (2008). « Collaborative OLAP with Tag Clouds: Web 2.0 OLAP Formalism and Experimental Evaluation », dans WEBIST 2008 (4th International conference on Web Information Systems and Technologies, Funchal, Madeira - Portugal, 4-7 May 2008)

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Résumé

Increasingly, business projects are ephemeral. New Business Intelligence tools must support ad-lib data sources and quick perusal. Meanwhile, tag clouds are a popular community-driven visualization technique. Hence, we investigate tag-cloud views with support for OLAP operations such as roll-ups, slices, dices, clustering, and drill-downs. As a case study, we implemented an application where users can upload data and immediately navigate through its ad hoc dimensions. To support social networking, views can be easily shared and embedded in other Web sites. Algorithmically, our tag-cloud views are approximate range top-k queries over spontaneous data cubes. We present experimental evidence that iceberg cuboids provide adequate online approximations. We benchmark several browser-oblivious tag-cloud layout optimizations.

Type: Communication, article de congrès ou colloque
Mots-clés ou Sujets: OLAP, Web 2.0, Tag Cloud, Iceberg, Reordering
Unité d'appartenance: Télé-université > UER Science et Technologie
Déposé par: Daniel Lemire
Date de dépôt: 15 janv. 2008
Dernière modification: 20 avr. 2009 14:28
Adresse URL : http://archipel.uqam.ca/id/eprint/437

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