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ICWS
2008
IEEE
15 years 7 months ago
A Theory of Role Composition
We study the access control integration problem for web services. Organizations frequently use many services, each with its own access control policies, that must interoperate whi...
Jeffrey Fischer, Rupak Majumdar
ICWS
2008
IEEE
15 years 7 months ago
A Temporal Data-Mining Approach for Discovering End-to-End Transaction Flows
Effective management of Web Services systems relies on accurate understanding of end-to-end transaction flows, which may change over time as the service composition evolves. This ...
Ting Wang, Chang-Shing Perng, Tao Tao, Chunqiang T...
PEWASUN
2008
ACM
15 years 7 months ago
Modular network trace analysis
In this paper we present EDAT, a tool designed for the analysis of trace files from network simulations and experiments. The EDAT framework encapsulates analysis steps in extensib...
Wolfgang Kieß, Nadine Chmill, Ulrich Wittels...
SDM
2008
SIAM
136views Data Mining» more  SDM 2008»
15 years 7 months ago
Exploration and Reduction of the Feature Space by Hierarchical Clustering
In this paper we propose and test the use of hierarchical clustering for feature selection. The clustering method is Ward's with a distance measure based on GoodmanKruskal ta...
Dino Ienco, Rosa Meo
SODA
2008
ACM
131views Algorithms» more  SODA 2008»
15 years 7 months ago
Approximating connected facility location problems via random facility sampling and core detouring
We present a simple randomized algorithmic framework for connected facility location problems. The basic idea is as follows: We run a black-box approximation algorithm for the unc...
Friedrich Eisenbrand, Fabrizio Grandoni, Thomas Ro...