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SAC
2008
ACM
15 years 3 months ago
XEdge: clustering homogeneous and heterogeneous XML documents using edge summaries
In this paper we propose a unified clustering algorithm for both homogeneous and heterogeneous XML documents. Depending on the type of the XML documents, the proposed algorithm mo...
Panagiotis Antonellis, Christos Makris, Nikos Tsir...
EMO
2003
Springer
86views Optimization» more  EMO 2003»
15 years 9 months ago
No Free Lunch and Free Leftovers Theorems for Multiobjective Optimisation Problems
Abstract. The classic NFL theorems are invariably cast in terms of single objective optimization problems. We confirm that the classic NFL theorem holds for general multiobjective ...
David Corne, Joshua D. Knowles
DSN
2000
IEEE
15 years 8 months ago
On the Quality of Service of Failure Detectors
ÐWe study the quality of service (QoS) of failure detectors. By QoS, we mean a specification that quantifies 1) how fast the failure detector detects actual failures and 2) how we...
Wei Chen, Sam Toueg, Marcos Kawazoe Aguilera
CIKM
2008
Springer
15 years 6 months ago
On low dimensional random projections and similarity search
Random projection (RP) is a common technique for dimensionality reduction under L2 norm for which many significant space embedding results have been demonstrated. However, many si...
Yu-En Lu, Pietro Liò, Steven Hand
SAC
2008
ACM
15 years 3 months ago
A cost-driven approach to role engineering
In recent years role-based access control (RBAC) has been spreading within organizations. However, companies still have considerable difficulty migrating to this model, due to the...
Alessandro Colantonio, Roberto Di Pietro, Alberto ...