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GIS
2006
ACM
14 years 9 months ago
Generalization of land cover maps by mixed integer programming
We present a novel method for the automatic generalization of land cover maps. A land cover map is composed of areas that collectively form a tessellation of the plane and each ar...
Jan-Henrik Haunert, Alexander Wolff
VLDB
2008
ACM
147views Database» more  VLDB 2008»
14 years 9 months ago
Tree-based partition querying: a methodology for computing medoids in large spatial datasets
Besides traditional domains (e.g., resource allocation, data mining applications), algorithms for medoid computation and related problems will play an important role in numerous e...
Kyriakos Mouratidis, Dimitris Papadias, Spiros Pap...
SIGMOD
2009
ACM
177views Database» more  SIGMOD 2009»
14 years 9 months ago
Exploiting context analysis for combining multiple entity resolution systems
Entity Resolution (ER) is an important real world problem that has attracted significant research interest over the past few years. It deals with determining which object descript...
Zhaoqi Chen, Dmitri V. Kalashnikov, Sharad Mehrotr...
SIGMOD
2008
ACM
89views Database» more  SIGMOD 2008»
14 years 9 months ago
Towards identity anonymization on graphs
The proliferation of network data in various application domains has raised privacy concerns for the individuals involved. Recent studies show that simply removing the identities ...
Kun Liu, Evimaria Terzi
PODS
2010
ACM
215views Database» more  PODS 2010»
14 years 1 months ago
An optimal algorithm for the distinct elements problem
We give the first optimal algorithm for estimating the number of distinct elements in a data stream, closing a long line of theoretical research on this problem begun by Flajolet...
Daniel M. Kane, Jelani Nelson, David P. Woodruff