'Spatial joins' diaporamas de présentation

Spatial Queries

907 views • 56 slides

An Incremental Refining Spatial Join Algorithm for Estimating Query Results in GIS

An Incremental Refining Spatial Join Algorithm for Estimating Query Results in GIS. Wan D. Bae, Shayma Alkobaisi, Scott T. Leutenegger Department of Computer Science University of Denver {wbae, salkobai, leut}@cs.du.edu. Outline. Introduction Motivation Spatial Join Estimation

455 views • 35 slides

Ad-hoc Distributed Spatial Joins on Mobile Devices

Ad-hoc Distributed Spatial Joins on Mobile Devices. Panos Kalnis, Xiaochen Li National University of Singapore Nikos Mamoulis The University of Hong Kong Spiridon Bakiras Hong Kong University of Science and Technology. Restaurants. Hotels. Motivation.

247 views • 24 slides

Optimization of Spatial Joins on Mobile Devices

Optimization of Spatial Joins on Mobile Devices. N. Mamoulis 1 , P. Kalnis 2 , S. Bakiras 3 , X. Li 2. 1 Department of Computer Science and Information Systems, University of Hong Kong. 2 Department of Computer Science, National University of Singapore.

290 views • 19 slides

Optimization of Spatial Joins on Mobile Devices

Optimization of Spatial Joins on Mobile Devices. N. Mamoulis 1 , P. Kalnis 2 , S. Bakiras 3 , X. Li 2. 1 Department of Computer Science and Information Systems, University of Hong Kong. 2 Department of Computer Science, National University of Singapore.

197 views • 19 slides

Spatial Join

392 views • 18 slides

Spatial Join

299 views • 18 slides

Basic Spatial Analysis Tools

Basic Spatial Analysis Tools. Queries Spatial Joins Map Overlays Buffers. Queries. Attribute Queries Select spatial features based on attribute information. e.g. Find all the Canadian cities with over 1 million inhabitants. Spatial Queries

215 views • 14 slides