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CPM
2000
Springer
160views Combinatorics» more  CPM 2000»
15 years 1 months ago
Approximation Algorithms for Hamming Clustering Problems
We study Hamming versions of two classical clustering problems. The Hamming radius p-clustering problem (HRC) for a set S of k binary strings, each of length n, is to find p bina...
Leszek Gasieniec, Jesper Jansson, Andrzej Lingas
INFOCOM
2011
IEEE
14 years 28 days ago
There's something about MRAI: Timing diversity can exponentially worsen BGP convergence
—To better support interactive applications, individual network operators are decreasing the timers that affect BGP convergence, leading to greater diversity in the timer setting...
Alex Fabrikant, Umar Syed, Jennifer Rexford
BROADNETS
2006
IEEE
15 years 3 months ago
An Energy Efficient and Accurate Slot Synchronization Scheme for Wireless Sensor Networks
Existing slotted channel access schemes in wireless networks assume that slot boundaries at all nodes are synchronized. In practice, relative clock drifts among nodes cause slot mi...
Lillian Dai, Prithwish Basu, Jason Redi
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PODS
2007
ACM
159views Database» more  PODS 2007»
15 years 9 months ago
Generalized hypertree decompositions: np-hardness and tractable variants
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...
Georg Gottlob, Thomas Schwentick, Zoltán Mi...
BMCBI
2008
81views more  BMCBI 2008»
14 years 9 months ago
A perspective for biomedical data integration: Design of databases for flow cytometry
Background: The integration of biomedical information is essential for tackling medical problems. We describe a data model in the domain of flow cytometry (FC) allowing for massiv...
John Drakos, Marina Karakantza, Nicholas C. Zoumbo...