Title
Competitive Search for Longest Empty Intervals
Abstract
A problem arising in statistical data analysis and pat- tern recognition is to find a longest interval free of data points, given a set of data points in the unit interval. We use the inverse length of the empty interval as a pa- rameter in the complexity bounds, since it is small in statistically relevant cases. For sorted point sets we get nearly optimal strategies. While the asymptotic com- plexities are trivial, achieving an optimal number of op- erations appears to be dicult. Constant factors can be of practical interest for huge data sets. We derive de- terministic and randomized upper and lower bounds. Matching bounds and smooth trade-os between the dierent operations (reads, comparisons, subtractions) are open questions. For unsorted point sets, the com- plexity is at least linear. Therefore we also use statistical inference to get approximate solutions in sublinear time. We also point out some extensions to multidimensional analogues of the problems.
Year
Venue
Keywords
2008
CCCG
statistical inference,upper and lower bounds
Field
DocType
Citations 
Data point,Randomized algorithm,Discrete mathematics,Inverse,Data set,Combinatorics,Upper and lower bounds,Unit interval,Statistical inference,Group testing,Mathematics
Conference
0
PageRank 
References 
Authors
0.34
9
1
Name
Order
Citations
PageRank
Peter Damaschke147156.99