858 search results - page 21 / 172 » An Efficient Spatial Search Method Based on SG-Tree |
TIT
2002
13 years 8 months ago
2002
In this semitutorial paper, a comprehensive survey of closest point search methods for lattices without a regular structure is presented. The existing search strategies are describ...
PODS
2004
ACM
14 years 9 months ago
2004
ACM
We present a novel coding-based technique for answering spatial and spatiotemporal queries on objects moving along a system of curves on the plane such as many road networks. We h...
ICDE
2007
IEEE
14 years 10 months ago
2007
IEEE
A spatial preference query ranks objects based on the qualities of features in their spatial neighborhood. For example, consider a real estate agency office that holds a database ...
KDD
2009
ACM
14 years 9 months ago
2009
ACM
Spatial classification is the task of learning models to predict class labels based on the features of entities as well as the spatial relationships to other entities and their fe...
ICASSP
2011
IEEE
13 years 23 days ago
2011
IEEE
In this paper, we consider improvement of parameter estimation accuracy of multicomponent polynomial-phase signals (mc-PPSs) using the product high-order ambiguity function (PHAF)...