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» Towards a Theory of Spatial Database Queries
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SSDBM
1998
IEEE
101views Database» more  SSDBM 1998»
13 years 12 months ago
Specifications for Efficient Indexing in Spatiotemporal Databases
: A new issue that arises in modern applications involves the efficient manipulation of (static or moving) spatial objects, and the relationships among them. As a result, modern da...
Yannis Theodoridis, Timos K. Sellis, Apostolos Pap...
MM
1994
ACM
143views Multimedia» more  MM 1994»
13 years 11 months ago
Quad-Tree Segmentation for Texture-Based Image Query
In this paper we propose a technique for segmenting images by texture content with application to indexing images in a large image database. Using a quad-tree decomposition, textu...
Jonathan M. Smith, Shih-Fu Chang
DEXA
1997
Springer
137views Database» more  DEXA 1997»
13 years 12 months ago
A Retrieval Mechanism for Semi-Structured Photographic Collections
Abstract. In this paper, a new approach for retrieval from semistructured photographic collections is described. We have developed a retrieval model based on the Dempster-Shafer th...
Joemon M. Jose, David J. Harper
ICDE
2007
IEEE
128views Database» more  ICDE 2007»
14 years 9 months ago
SD-Rtree: A Scalable Distributed Rtree
We propose a scalable distributed data structure (SDDS) called SD-Rtree. We intend our structure for point and window queries over possibly large spatial datasets distributed on c...
Cédric du Mouza, Philippe Rigaux, Witold Li...
GIS
2010
ACM
13 years 5 months ago
Towards location-based social networking services
Social networking applications have become very important web services that provide Internet-based platforms for their users to interact with their friends. With the advances in t...
Chi-Yin Chow, Jie Bao 0003, Mohamed F. Mokbel