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ICDE
2012
IEEE
343views Database» more  ICDE 2012»
11 years 10 months ago
Bi-level Locality Sensitive Hashing for k-Nearest Neighbor Computation
We present a new Bi-level LSH algorithm to perform approximate k-nearest neighbor search in high dimensional spaces. Our formulation is based on a two-level scheme. In the first ...
Jia Pan, Dinesh Manocha
SAC
2009
ACM
14 years 2 months ago
GPU-based computation of distance functions on road networks with applications
We present a GPU-based algorithm for computing discretized distance functions on road networks. As applications, we provide algorithms for computing discrete Order-k Network Voron...
Marta Fort, Joan Antoni Sellarès
SIGMOD
2003
ACM
134views Database» more  SIGMOD 2003»
14 years 7 months ago
Location-based Spatial Queries
In this paper we propose an approach that enables mobile clients to determine the validity of previous queries based on their current locations. In order to make this possible, th...
Jun Zhang, Manli Zhu, Dimitris Papadias, Yufei Tao...
SBBD
2007
97views Database» more  SBBD 2007»
13 years 9 months ago
Constrained Aggregate Similarity Queries in Metric Spaces
The optimization of similarity queries using metric access methods has been widely discussed in the last decades. Similarity queries consider one object as the query center, and re...
Humberto Luiz Razente, Maria Camila Nardini Barion...
ACCV
2007
Springer
13 years 11 months ago
Efficient Search in Document Image Collections
This paper presents an efficient indexing and retrieval scheme for searching in document image databases. In many non-European languages, optical character recognizers are not very...
Anand Kumar 0002, C. V. Jawahar, R. Manmatha