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» Containment of Aggregate Queries
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134
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ICDCS
2006
IEEE
15 years 11 months ago
PastryStrings: A Comprehensive Content-Based Publish/Subscribe DHT Network
In this work we propose and develop a comprehensive infrastructure, coined PastryStrings, for supporting rich queries on both numerical (with range, and comparison predicates) and...
Ioannis Aekaterinidis, Peter Triantafillou
147
Voted
ICTIR
2009
Springer
15 years 2 months ago
An Analysis of NP-Completeness in Novelty and Diversity Ranking
Abstract. A useful ability for search engines is to be able to rank objects with novelty and diversity: the top k documents retrieved should cover possible interpretations of a que...
Ben Carterette
OTM
2009
Springer
15 years 11 months ago
Automatic Detection of Terminology Evolution
As archives contain documents that span over a long period of time, the language used to create these documents and the language used for querying the archive can differ. This di...
Nina Tahmasebi
APWEB
2005
Springer
15 years 10 months ago
Summarizing Spatial Relations - A Hybrid Histogram
Summarizing topological relations is fundamental to many spatial applications including spatial query optimization. In this paper, we examine the selectivity estimation for range w...
Qing Liu, Xuemin Lin, Yidong Yuan
IFIP
2004
Springer
15 years 10 months ago
On Complexity of Model-Checking for the TQL Logic
In this paper we study the complexity of the model-checking problem for the tree logic introduced as the basis for the query language TQL [Cardelli and Ghelli, 2001]. We define tw...
Iovka Boneva, Jean-Marc Talbot