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ICALP
2009
Springer
14 years 5 months ago
Towards Optimal Range Medians
We consider the following problem: given an unsorted array of n elements, and a sequence of intervals in the array, compute the median in each of the subarrays defined by the inter...
Beat Gfeller, Peter Sanders
ISAAC
2003
Springer
93views Algorithms» more  ISAAC 2003»
13 years 10 months ago
Range Mode and Range Median Queries on Lists and Trees
We consider algorithms for preprocessing labelled lists and trees so that, for any two nodes u and v we can answer queries of the form: What is the mode or median label in the sequ...
Danny Krizanc, Pat Morin, Michiel H. M. Smid
STACS
2005
Springer
13 years 10 months ago
Approximate Range Mode and Range Median Queries
Abstract. We consider data structures and algorithms for preprocessing a labelled list of length n so that, for any given indices i and j we can answer queries of the form: What is...
Prosenjit Bose, Evangelos Kranakis, Pat Morin, Yih...
ESA
2008
Springer
71views Algorithms» more  ESA 2008»
13 years 7 months ago
Range Medians
Sariel Har-Peled, S. Muthukrishnan
IWPEC
2010
Springer
13 years 3 months ago
Partial Kernelization for Rank Aggregation: Theory and Experiments
RANK AGGREGATION is important in many areas ranging from web search over databases to bioinformatics. The underlying decision problem KEMENY SCORE is NP-complete even in case of fo...
Nadja Betzler, Robert Bredereck, Rolf Niedermeier