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DAWAK
2000
Springer
15 years 11 months ago
COFE: A Scalable Method for Feature Extraction from Complex Objects
Abstract. Feature Extraction, also known as Multidimensional Scaling, is a basic primitive associated with indexing, clustering, nearest neighbor searching and visualization. We co...
Gabriela Hristescu, Martin Farach-Colton
VLDB
1999
ACM
87views Database» more  VLDB 1999»
15 years 11 months ago
Query Optimization for XML
XML is an emerging standard for data representation and exchange on the World-Wide Web. Due to the nature of information on the Web and the inherent flexibility of XML, we expect...
Jason McHugh, Jennifer Widom
SSD
1997
Springer
154views Database» more  SSD 1997»
15 years 10 months ago
On the Assessment of Generalisation Consistency
Theory, algorithms, techniques and tools for producing a generalisation of a map have long been available. In this paper we study the inverse problem, namely, given two maps L and...
Vasilis Delis, Thanasis Hadzilacos
148
Voted
DEXA
2008
Springer
87views Database» more  DEXA 2008»
15 years 8 months ago
Tracking Moving Objects in Anonymized Trajectories
Multiple target tracking (MTT) is a well-studied technique in the field of radar technology, which associates anonymized measurements with the appropriate object trajectories. This...
Nikolay Vyahhi, Spiridon Bakiras, Panos Kalnis, Ga...
PODS
2010
ACM
197views Database» more  PODS 2010»
15 years 6 months ago
When data dependencies over SQL tables meet the logics of paradox and S-3
We study functional and multivalued dependencies over SQL tables with NOT NULL constraints. Under a no-information interpretation of null values we develop tools for reasoning. We...
Sven Hartmann, Sebastian Link