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GIS
2010
ACM
15 years 5 months ago
Verifying spatial queries using Voronoi neighbors
With the popularity of location-based services and the abundant usage of smart phones and GPS enabled devices, the necessity of outsourcing spatial data has grown rapidly over the...
Ling Hu, Wei-Shinn Ku, Spiridon Bakiras, Cyrus Sha...
COMPGEOM
2010
ACM
15 years 11 months ago
Orthogonal range reporting: query lower bounds, optimal structures in 3-d, and higher-dimensional improvements
Orthogonal range reporting is the problem of storing a set of n points in d-dimensional space, such that the k points in an axis-orthogonal query box can be reported efficiently. ...
Peyman Afshani, Lars Arge, Kasper Dalgaard Larsen
IEICET
2008
67views more  IEICET 2008»
15 years 6 months ago
Learning of Finite Unions of Tree Patterns with Internal Structured Variables from Queries
We consider the polynomial time learnability of finite unions of ordered tree patterns with internal structured variables, in the query learning model of Angluin (1988). An ordered...
Satoshi Matsumoto, Takayoshi Shoudai, Tomoyuki Uch...
ICDE
2009
IEEE
158views Database» more  ICDE 2009»
16 years 8 months ago
BioNav: Effective Navigation on Query Results of Biomedical Databases
Search queries on biomedical databases like PubMed often return a large number of results, only a small subset of which is relevant to the user. Ranking and categorization, which c...
Abhijith Kashyap, Vagelis Hristidis, Michalis Petr...
WWW
2005
ACM
16 years 7 months ago
Adaptive query routing in peer web search
An unstructured peer network application was proposed to address the query forwarding problem of distributed search engines and scalability limitations of centralized search engin...
Le-Shin Wu, Ruj Akavipat, Filippo Menczer