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MMS
2006
15 years 6 months ago
Update Relevance under the Multiset Semantics of RDBMS
: In order to reduce transmission costs and response time, mobile clients typically cache data locally. But, avoiding the usage of outdated data and maintaining the consistency of ...
Hagen Höpfner
IPL
2007
95views more  IPL 2007»
15 years 6 months ago
Optimal implementations of UPGMA and other common clustering algorithms
In this work we consider hierarchical clustering algorithms, such as UPGMA, which follow the closest-pair joining scheme. We survey optimal O(n2)-time implementations of such algo...
Ilan Gronau, Shlomo Moran
CN
2000
75views more  CN 2000»
15 years 6 months ago
Graph structure in the Web
The study of the web as a graph is not only fascinating in its own right, but also yields valuable insight into web algorithms for crawling, searching and community discovery, and...
Andrei Z. Broder, Ravi Kumar, Farzin Maghoul, Prab...
MVA
2002
226views Computer Vision» more  MVA 2002»
15 years 6 months ago
Adaptive Background Estimation and Shadow Removal in Indoor Scenes
2 Background Model Background subtraction algorithm is susceptible to both global and local illumination changes such as shadows, sunlight and reflection. These changes sometimes c...
Junya Morita, Yoshio Iwai, Masahiko Yachida
ACSD
2004
IEEE
160views Hardware» more  ACSD 2004»
15 years 10 months ago
Concurrency in Synchronous Systems
In this paper we introduce the notion of weak endochrony, which extends to a synchronous setting the classical theory of Mazurkiewicz traces. The notion is useful in the synthesis ...
Dumitru Potop-Butucaru, Benoît Caillaud, Alb...