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SAC
2010
ACM
15 years 11 months ago
Background knowledge in formal concept analysis: constraints via closure operators
The aim of this short paper is to present a general method of using background knowledge to impose constraints in conceptual clustering of object-attribute relational data. The pr...
Radim Belohlávek, Vilém Vychodil
SIGMOD
2009
ACM
172views Database» more  SIGMOD 2009»
15 years 11 months ago
Self-organizing tuple reconstruction in column-stores
Column-stores gained popularity as a promising physical design alternative. Each attribute of a relation is physically stored as a separate column allowing queries to load only th...
Stratos Idreos, Martin L. Kersten, Stefan Manegold
EUROSSC
2009
Springer
15 years 11 months ago
Time-Lag as Limiting Factor for Indoor Walking Navigation
Several navigation situations can be imagined where visual cueing is not practical or unfeasible, and where the hands are required exclusively for a certain task. The utilization o...
Andreas Riener, Markus Straub, Alois Ferscha
CISS
2008
IEEE
15 years 11 months ago
Rate adaptation via link-layer feedback for goodput maximization over a time-varying channel
Abstract—We consider adapting the transmission rate to maximize the goodput, i.e., the amount of data transmitted without error, over a continuous Markov flat-fading wireless ch...
Rohit Aggarwal, Phil Schniter, Can Emre Koksal
GLOBECOM
2007
IEEE
15 years 10 months ago
GMPLS-Based Hybrid 1+N Link Protection Over p-Cycles: Design and Performance
—In [1], the author introduced a strategy to use network coding on p-Cycles in order to provide 1+N protection for straddling connections and links against single link failures i...
Ahmed E. Kamal