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SSD
1999
Springer
106views Database» more  SSD 1999»
13 years 11 months ago
XZ-Ordering: A Space-Filling Curve for Objects with Spatial Extension
There is an increasing need to integrate spatial index structures into commercial database management systems. In geographic information systems (GIS), huge amounts of information ...
Christian Böhm, Gerald Klump, Hans-Peter Krie...
VLDB
1989
ACM
98views Database» more  VLDB 1989»
13 years 11 months ago
A Family of Incomplete Relational Database Models
In this paper. we utilize intervals for unknown values in incompleterelational databases.We usetablesto representunknown relations. First, we define three partial tuple types in a...
Adegbemiga Ola, Gultekin Özsoyoglu
NDQA
2003
156views Education» more  NDQA 2003»
13 years 8 months ago
Toward a Question Answering Roadmap
Growth in government investment, academic research, and commercial question answering (QA) systems is motivating a need for increased planning and coordination. The internationali...
Mark T. Maybury
ESORICS
2010
Springer
13 years 8 months ago
Web Browser History Detection as a Real-World Privacy Threat
Web browser history detection using CSS visited styles has long been dismissed as an issue of marginal impact. However, due to recent changes in Web usage patterns, coupled with br...
Artur Janc, Lukasz Olejnik
IR
2006
13 years 7 months ago
Hierarchical clustering of a Finnish newspaper article collection with graded relevance assessments
Search facilitated with agglomerative hierarchical clustering methods was studied in a collection of Finnish newspaper articles (N = 53,893). To allow quick experiments, clustering...
Tuomo Korenius, Jorma Laurikkala, Martti Juhola, K...