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STOC
2012
ACM
217views Algorithms» more  STOC 2012»
11 years 10 months ago
Tight lower bounds for the online labeling problem
We consider the file maintenance problem (also called the online labeling problem) in which n integer items from the set {1, . . . , r} are to be stored in an array of size m ≥...
Jan Bulánek, Michal Koucký, Michael ...
ECCC
2010
80views more  ECCC 2010»
13 years 7 months ago
Regret Minimization for Online Buffering Problems Using the Weighted Majority Algorithm
Suppose a decision maker has to purchase a commodity over time with varying prices and demands. In particular, the price per unit might depend on the amount purchased and this pri...
Melanie Winkler, Berthold Vöcking, Sascha Geu...
FAW
2010
Springer
203views Algorithms» more  FAW 2010»
13 years 6 months ago
Online Algorithms for the Newsvendor Problem with and without Censored Demands
The newsvendor problem describes the dilemma of a newspaper salesman—how many papers should he purchase each day to resell, when he doesn’t know the demand? We develop approach...
Peter Sempolinski, Amitabh Chaudhary
JCSS
2006
89views more  JCSS 2006»
13 years 7 months ago
Ramsey-type theorems for metric spaces with applications to online problems
A nearly logarithmic lower bound on the randomized competitive ratio for the metrical task systems problem is presented. This implies a similar lower bound for the extensively stu...
Yair Bartal, Béla Bollobás, Manor Me...