4041 search results - page 624 / 809 » time 2009 |
172
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AMW
2009
15 years 7 months ago
2009
Abstract. Rewriting of conjunctive queries using views has many applications in database and data integration. We investigate ways to improve performance of rewriting and propose a...
198
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ASWC
2009
Springer
15 years 7 months ago
2009
Springer
In this paper we propose algorithms for combining and ranking answers from distributed heterogeneous data sources in the context of a multi-ontology Question Answering task. Our pr...
182
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BCSHCI
2009
15 years 7 months ago
2009
In this paper we describe a design-orientated field study in which we deploy a novel digital display device to explore the potential integration of teenage and family photo displa...
162
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BILDMED
2009
15 years 7 months ago
2009
Abstract. Reflection of sound waves, due to acoustic impedance mismatch at the interface of two media, is the principal physical property which allows visualization with ultrasound...
178
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BILDMED
2009
15 years 7 months ago
2009
The qualitative and quantitative comparison of pre- and postoperative image data is an important possibility to validate computer assisted surgical procedures. Due to deformations ...