1220 search results - page 180 / 244 » XML Structural Summaries |
164
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POPL
2006
ACM
15 years 10 months ago
2006
ACM
We define a new fixpoint modal logic, the visibly pushdown ?-calculus (VP-?), as an extension of the modal ?-calculus. The models of this logic are execution trees of structured p...
EDBT
2006
ACM
15 years 10 months ago
2006
ACM
Recent years have seen growing interest in effective algorithms for summarizing and querying massive, high-speed data streams. Randomized sketch synopses provide accurate approxima...
108
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IPPS
1999
IEEE
15 years 2 months ago
1999
IEEE
Multidimensional Analysis and On-Line Analytical Processing (OLAP) uses summary information that requires aggregate operations along one or more dimensions of numerical data value...
KDD
2012
ACM
13 years 7 days ago
2012
ACM
Online reviews provide consumers with valuable information that guides their decisions on a variety of fronts: from entertainment and shopping to medical services. Although the pr...
111
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DBPL
1993
Springer
15 years 1 months ago
1993
Springer
In this paper we study the expressive power of query languages for nested bags. We de ne the ambient bag language by generalizing the constructs of the relational language of Brea...