586 search results - page 78 / 118 » Answering Multiple-Item Queries in Data Broadcast Systems |
VLDB
2005
ACM
15 years 6 months ago
2005
ACM
To answer user queries, a data integration system employs a set of semantic mappings between the mediated schema and the schemas of data sources. In dynamic environments sources o...
200
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ICDE
2007
IEEE
16 years 2 months ago
2007
IEEE
Elevation maps are a widely used spatial data representation in geographical information systems (GIS). Paths on elevation maps can be characterized by profiles, which describe re...
111
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CAISE
2005
Springer
15 years 6 months ago
2005
Springer
Abstract. Recently, the database and AI research communities have paid increased attention to ontologies. The main motivating reason is that ontologies promise solutions for comple...
215
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ICDE
2006
IEEE
16 years 2 months ago
2006
IEEE
Until recently, most data integration techniques involved central components, e.g., global schemas, to enable transparent access to heterogeneous databases. Today, however, with t...
238
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ICDE
2008
IEEE
16 years 2 months ago
2008
IEEE
Digital videos are increasingly adopted in various multimedia applications where they are usually broadcasted or transmitted as video streams. Continuously monitoring copies on the...