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» On Using Query Logs for Static Index Pruning
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GEOINFORMATICA
2007
223views more  GEOINFORMATICA 2007»
13 years 7 months ago
Algorithms for Nearest Neighbor Search on Moving Object Trajectories
Nearest Neighbor (NN) search has been in the core of spatial and spatiotemporal database research during the last decade. The literature on NN query processing algorithms so far d...
Elias Frentzos, Kostas Gratsias, Nikos Pelekis, Ya...
SIGMOD
2010
ACM
210views Database» more  SIGMOD 2010»
13 years 7 months ago
Searching trajectories by locations: an efficiency study
Trajectory search has long been an attractive and challenging topic which blooms various interesting applications in spatial-temporal databases. In this work, we study a new probl...
Zaiben Chen, Heng Tao Shen, Xiaofang Zhou, Yu Zhen...
ECCV
2010
Springer
13 years 11 months ago
Accurate Image Localization Based on Google Maps Street View
Abstract. Finding an image’s exact GPS location is a challenging computer vision problem that has many real-world applications. In this paper, we address the problem of finding ...
GIS
2009
ACM
14 years 2 months ago
Constrained reverse nearest neighbor search on mobile objects
In this paper, we formalize the novel concept of Constrained Reverse k-Nearest Neighbor (CRkNN) search on mobile objects (clients) performed at a central server. The CRkNN query c...
Tobias Emrich, Hans-Peter Kriegel, Peer Kröge...
CIKM
2007
Springer
14 years 1 months ago
Recognition and classification of noun phrases in queries for effective retrieval
It has been shown that using phrases properly in the document retrieval leads to higher retrieval effectiveness. In this paper, we define four types of noun phrases and present an...
Wei Zhang, Shuang Liu, Clement T. Yu, Chaojing Sun...