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BNCOD
2003
138views Database» more  BNCOD 2003»
13 years 5 months ago
Aggregate Table-Driven Querying via Navigation Ontologies in Distributed Statistical Databases
In this paper we describe a query paradigm based on ontologies, aggregate table-driven querying and expansion of QBE. It has two novel features: visually specifying aggregate table...
Yaxin Bi, David A. Bell, Joanne Lamb
SIGMOD
2008
ACM
191views Database» more  SIGMOD 2008»
14 years 3 months ago
Efficient aggregation for graph summarization
Graphs are widely used to model real world objects and their relationships, and large graph datasets are common in many application domains. To understand the underlying character...
Yuanyuan Tian, Richard A. Hankins, Jignesh M. Pate...
ICDE
2010
IEEE
219views Database» more  ICDE 2010»
14 years 3 months ago
PIP: A Database System for Great and Small Expectations
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
Oliver Kennedy, Christoph Koch
WWW
2009
ACM
14 years 4 months ago
Evaluating similarity measures for emergent semantics of social tagging
Social bookmarking systems and their emergent information structures, known as folksonomies, are increasingly important data sources for Semantic Web applications. A key question ...
Benjamin Markines, Ciro Cattuto, Filippo Menczer, ...