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DMSN
2004
ACM
15 years 6 months ago
A framework for spatio-temporal query processing over wireless sensor networks
Wireless sensor networks consist of nodes with the ability to measure, store, and process data, as well as to communicate wirelessly with nodes located in their wireless range. Us...
Alexandru Coman, Mario A. Nascimento, Jörg Sa...
SBBD
2007
68views Database» more  SBBD 2007»
15 years 2 months ago
Querying Geographical Data Warehouses With GeoMDQL
Integrating geographical and multidimensional processing has been proposed in several researches in the database literature. One of the most important issues of this process is dat...
Joel da Silva, Ausberto S. Castro Vera, Anjolina G...
GIS
2006
ACM
16 years 2 months ago
Exploiting a page-level upper bound for multi-type nearest neighbor queries
Given a query point and a collection of spatial features, a multi-type nearest neighbor (MTNN) query finds the shortest tour for the query point such that only one instance of eac...
Xiaobin Ma, Shashi Shekhar, Hui Xiong, Pusheng Zha...
WWW
2001
ACM
16 years 1 months ago
Efficient Acquisition of Web Data through Restricted Query Interfaces
A wealth of information is available on the Web. But often, such data are hidden behind form interfaces which allow only a restrictive set of queries over the underlying databases...
Cláudio T. Silva, Juliana Freire, Simon Bye...
ICPR
2008
IEEE
16 years 2 months ago
Detecting global motion patterns in complex videos
Learning dominant motion patterns or activities from a video is an important surveillance problem, especially in crowded environments like markets, subways etc., where tracking of...
Min Hu, Mubarak Shah, Saad Ali