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GIS
2009
ACM
16 years 1 months ago
Topological relations from metric refinements
Naive Geography’s premise “Topology matters, metric refines” calls for metric properties that provide opportunities for finergrained distinctions than the purely qualitative...
Max J. Egenhofer, Matthew P. Dube
DEXAW
2009
IEEE
129views Database» more  DEXAW 2009»
16 years 1 months ago
RDFStats - An Extensible RDF Statistics Generator and Library
—In this paper RDFStats is introduced, which is a generator for statistics of RDF sources like SPARQL endpoints and RDF documents. RDFStats does not only provide a statistics gen...
Andreas Langegger, Wolfram Wöß
IDEAS
2009
IEEE
104views Database» more  IDEAS 2009»
16 years 1 months ago
An organizational file permission management system using the cellular data system
In designing dynamic situations such as cyberworlds, we the Incrementally Modular Abstraction Hierarchy (IMAH) to be an appropriate mathematical background to model dynamically ch...
Toshio Kodama, Tosiyasu L. Kunii, Yoichi Seki
ADBIS
2009
Springer
127views Database» more  ADBIS 2009»
16 years 1 months ago
Window Update Patterns in Stream Operators
Continuous queries applied over nonterminating data streams usually specify windows in order to obtain an evolving –yet restricted– set of tuples and thus provide timely result...
Kostas Patroumpas, Timos K. Sellis
ADC
2009
Springer
113views Database» more  ADC 2009»
16 years 1 months ago
Ranking-Constrained Keyword Sequence Extraction from Web Documents
Given a large volume of Web documents, we consider problem of finding the shortest keyword sequences for each of the documents such that a keyword sequence can be rendered to a g...
Ding-Yi Chen, Xue Li, Jing Liu, Xia Chen