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189
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DKE
2008
15 years 6 months ago
2008
We study an important data analysis operator, which extracts the k most important groups from data (i.e., the k groups with the highest aggregate values). In a data warehousing co...
199
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DSS
2008
15 years 6 months ago
2008
We develop a two-stage model for versioning products with respect to both vertical and horizontal attributes. At first, a firm positions its top-quality "flagship" produ...
171
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ECCC
2008
15 years 6 months ago
2008
Any proof of P = NP will have to overcome two barriers: relativization and natural proofs. Yet over the last decade, we have seen circuit lower bounds (for example, that PP does n...
172
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ENGL
2008
15 years 6 months ago
2008
High performance computing is becoming increasingly important in the field of financial computing, as the complexity of financial models continues to increase. Many of these financ...
175
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ENTCS
2008
15 years 6 months ago
2008
Defining operational semantics for a process algebra is often based either on labeled transition systems that account for interaction with a context or on the so-called reduction ...