Title
Scheduling algorithms for procrastinators
Abstract
This paper presents scheduling algorithms for procrastinators, where the speed that a procrastinator executes a job increases as the due date approaches. We give optimal off-line scheduling policies for linearly increasing speed functions. We then explain the computational/numerical issues involved in implementing this policy. We next explore the online setting, showing that there exist adversaries that force any online scheduling policy to miss due dates. This impossibility result motivates the problem of minimizing the maximum interval stretch of any job; the interval stretch of a job is the job's flow time divided by the job's due date minus release time. We show that several common scheduling strategies, including the "hit-the-highest-nail" strategy beloved by procrastinators, have arbitrarily large maximum interval stretch. Then we give the "thrashing" scheduling policy and show that it is a 驴(1) approximation algorithm for the maximum interval stretch.
Year
DOI
Venue
2006
10.1007/s10951-007-0038-4
Clinical Orthopaedics and Related Research
Keywords
DocType
Volume
Hit-the-highest-nail,Interval stretch,NP-complete,Online scheduling,Procrastinate,Procrastinator,Stretch,Sum-of-squares problem
Journal
11
Issue
ISSN
Citations 
2
1094-6136
5
PageRank 
References 
Authors
0.44
23
3
Name
Order
Citations
PageRank
Michael A. Bender12144138.24
Raphaël Clifford226828.57
Kostas Tsichlas320925.21