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FOSSACS
2009
Springer
15 years 7 months ago
Minimal Cost Reachability/Coverability in Priced Timed Petri Nets
Abstract. We extend discrete-timed Petri nets with a cost model that assigns token storage costs to places and firing costs to transitions, and study the minimal cost reachability...
Parosh Aziz Abdulla, Richard Mayr
SIGECOM
2003
ACM
92views ECommerce» more  SIGECOM 2003»
15 years 6 months ago
Strategyproof cost-sharing mechanisms for set cover and facility location games
Strategyproof cost-sharing mechanisms, lying in the core, that recover 1/a fraction of the cost, are presented for the set cover and facility location games: a=O(log n) for the fo...
Nikhil R. Devanur, Milena Mihail, Vijay V. Vaziran...
93
Voted
BMCBI
2007
154views more  BMCBI 2007»
15 years 26 days ago
Bounds on the distribution of the number of gaps when circles and lines are covered by fragments: Theory and practical applicati
Background: The question of how a circle or line segment becomes covered when random arcs are marked off has arisen repeatedly in bioinformatics. The number of uncovered gaps is o...
John Moriarty, Julian R. Marchesi, Anthony Metcalf...
DAM
2008
139views more  DAM 2008»
15 years 24 days ago
Covering symmetric semi-monotone functions
We define a new set of functions called semi-monotone, a subclass of skew-supermodular functions. We show that the problem of augmenting a given graph to cover a symmetric semi-mo...
Roland Grappe, Zoltán Szigeti
116
Voted
CORR
2006
Springer
160views Education» more  CORR 2006»
15 years 23 days ago
Frugality ratios and improved truthful mechanisms for vertex cover
In set-system auctions, there are several overlapping teams of agents, and a task that can be completed by any of these teams. The auctioneer's goal is to hire a team and pay...
Edith Elkind, Leslie Ann Goldberg, Paul W. Goldber...