7280 search results - page 1240 / 1456 » Optimization Techniques |
140
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KDD
2010
ACM
15 years 9 months ago
2010
ACM
The fused Lasso penalty enforces sparsity in both the coefficients and their successive differences, which is desirable for applications with features ordered in some meaningful w...
182
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CONEXT
2008
ACM
15 years 9 months ago
2008
ACM
Abstract: Social virtual worlds such as Second Life are digital representations of the real world where human-controlled avatars evolve and interact through social activities. Unde...
200
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DAWAK
2008
Springer
15 years 9 months ago
2008
Springer
The DWS (Data Warehouse Striping) technique is a data partitioning approach especially designed for distributed data warehousing environments. In DWS the fact tables are distribute...
216
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DEXA
2008
Springer
2008
Springer
Evolutionary Clustering in Description Logics: Controlling Concept Formation and Drift in Ontologies
15 years 9 months ago
Abstract. We present a method based on clustering techniques to detect concept drift or novelty in a knowledge base expressed in Description Logics. The method exploits an effectiv...
232
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ER
2008
Springer
15 years 9 months ago
2008
Springer
Access limitations may occur when querying data sources over the web or heterogeneous data sources presented as relational tables: this happens, for instance, in Data Exchange and ...