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» Lower Bounds on the Size of Test Data Sets
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IPL
2010
111views more  IPL 2010»
13 years 6 months ago
Connecting face hitting sets in planar graphs
We show that any face hitting set of size n of a connected planar graph with a minimum degree of at least 3 is contained in a connected subgraph of size 5n − 6. Furthermore we s...
Pascal Schweitzer, Patrick Schweitzer
IPL
2011
94views more  IPL 2011»
12 years 11 months ago
Lower bounds for context-free grammars
Ellul, Krawetz, Shallit and Wang prove an exponential lower bound on the size of any context-free grammar generating the language of all permutations over some alphabet. We genera...
Yuval Filmus
PODS
2007
ACM
108views Database» more  PODS 2007»
14 years 7 months ago
Machine models and lower bounds for query processing
This paper gives an overview of recent work on machine models for processing massive amounts of data. The main focus is on generalizations of the classical data stream model where...
Nicole Schweikardt
FOCS
2005
IEEE
14 years 1 months ago
Linear Lower Bounds on Real-World Implementations of Concurrent Objects
This paper proves   ¡ £ ¥ lower bounds on the time to perform a single instance of an operation in any implementation of a large class of data structures shared by £ processe...
Faith Ellen Fich, Danny Hendler, Nir Shavit
RSFDGRC
2009
Springer
119views Data Mining» more  RSFDGRC 2009»
14 years 2 months ago
Interval Set Cluster Analysis: A Re-formulation
A new clustering strategy is proposed based on interval sets, which is an alternative formulation different from the ones used in the existing studies. Instead of using a single s...
Yiyu Yao, Pawan Lingras, Ruizhi Wang, Duoqian Miao