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AMW
2010
13 years 4 months ago
SQL Nested Queries in SPARQL
SPARQL currently does not include any form of nested queries. In this paper we present a proposal to incorporate nested queries into SPARQL along the design philosophy of SQL neste...
Renzo Angles, Claudio Gutierrez
AMW
2010
13 years 7 months ago
Generating XML/GML Schemas from Geographic Conceptual Schemas
Abstract. A large volume of data with complex structures is currently represented in GML (Geography Markup Language) for storing and exchanging geographic information. As the size ...
André C. Hora, Clodoveu A. Davis Jr., Mirel...
AMW
2010
13 years 7 months ago
Robust Clustering of Data Streams using Incremental Optimization
Discovering the patterns in evolving data streams is a very important and challenging task. In many applications, it is useful to detect the dierent patterns evolving over time and...
Basheer Hawwash, Olfa Nasraoui
AMW
2010
13 years 7 months ago
Query Rewriting under Non-Guarded Rules
We address the problem of answering conjunctive queries over knowledge bases, specified by sets of first-order sentences called tuple-generating dependencies (TGDs). This problem i...
Andrea Calì, Georg Gottlob, Andreas Pieris
AMW
2010
13 years 7 months ago
Cooperative Authorship Social Network
This paper introduces a set of challenges for developing a dissemination service over a Web collaborative network. We define specific metrics for working on a co-authorship researc...
Giseli Rabello Lopes, Mirella M. Moro, Leandro Kru...
Knowledge Management
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