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ICTCS
2005
Springer
14 years 3 months ago
Inapproximability Results for the Lateral Gene Transfer Problem
This paper concerns the Lateral Gene Transfer Problem. This minimization problem, defined by Hallet and Lagergren [6], is that of finding the most parsimonious lateral gene trans...
Bhaskar DasGupta, Sergio Ferrarini, Uthra Gopalakr...
ICTCS
2005
Springer
14 years 3 months ago
Laxity Helps in Broadcast Scheduling
We study the effect of laxity, or slack time, on the online scheduling of broadcasts with deadlines. The laxity of a request is defined to be the ratio between its span (differe...
Stanley P. Y. Fung, Francis Y. L. Chin, Chung Keun...
ICTCS
2005
Springer
14 years 3 months ago
Improved Algorithms for Polynomial-Time Decay and Time-Decay with Additive Error
Abstract. We consider the problem of maintaining polynomial and exponential decay aggregates of a data stream, where the weight of values seen from the stream diminishes as time el...
Tsvi Kopelowitz, Ely Porat