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» The Guarding Problem - Complexity and Approximation
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WINE
2010
Springer
149views Economy» more  WINE 2010»
15 years 2 months ago
Winner-Imposing Strategyproof Mechanisms for Multiple Facility Location Games
We study Facility Location games, where a number of facilities are placed in a metric space based on locations reported by strategic agents. A mechanism maps the agents' locat...
Dimitris Fotakis, Christos Tzamos
WINE
2010
Springer
220views Economy» more  WINE 2010»
15 years 2 months ago
Threshold Models for Competitive Influence in Social Networks
The problem of influence maximization deals with choosing the optimal set of nodes in a social network so as to maximize the resulting spread of a technology (opinion, productowne...
Allan Borodin, Yuval Filmus, Joel Oren
IOR
2010
71views more  IOR 2010»
15 years 1 months ago
Stochastic Root Finding and Efficient Estimation of Convex Risk Measures
Reliable risk measurement is a key problem for financial institutions and regulatory authorities. The current industry standard Value-at-Risk has several deficiencies. Improved ri...
Jörn Dunkel, Stefan Weber
ALGORITHMICA
2011
14 years 11 months ago
Crossing Numbers of Graphs with Rotation Systems
We show that computing the crossing number and the odd crossing number of a graph with a given rotation system is NP-complete. As a consequence we can show that many of the well-k...
Michael J. Pelsmajer, Marcus Schaefer, Daniel Stef...
CDC
2010
IEEE
119views Control Systems» more  CDC 2010»
14 years 11 months ago
Motion planning in quantum control via intersection of eigenvalues
In this paper we consider the problem of inducing a transition in a controlled quantum mechanical system whose spectrum loses simplicity for some values of the control. We study th...
Ugo V. Boscain, Francesca C. Chittaro, Paolo Mason...