419 research outputs found
Sonet Network Design Problems
This paper presents a new method and a constraint-based objective function to
solve two problems related to the design of optical telecommunication networks,
namely the Synchronous Optical Network Ring Assignment Problem (SRAP) and the
Intra-ring Synchronous Optical Network Design Problem (IDP). These network
topology problems can be represented as a graph partitioning with capacity
constraints as shown in previous works. We present here a new objective
function and a new local search algorithm to solve these problems. Experiments
conducted in Comet allow us to compare our method to previous ones and show
that we obtain better results
Bargaining Mechanisms for One-Way Games
We introduce one-way games, a framework motivated by applications in
large-scale power restoration, humanitarian logistics, and integrated
supply-chains. The distinguishable feature of the games is that the payoff of
some player is determined only by her own strategy and does not depend on
actions taken by other players. We show that the equilibrium outcome in one-way
games without payments and the social cost of any ex-post efficient mechanism,
can be far from the optimum. We also show that it is impossible to design a
Bayes-Nash incentive-compatible mechanism for one-way games that is
budget-balanced, individually rational, and efficient. To address this negative
result, we propose a privacy-preserving mechanism that is incentive-compatible
and budget-balanced, satisfies ex-post individual rationality conditions, and
produces an outcome which is more efficient than the equilibrium without
payments. The mechanism is based on a single-offer bargaining and we show that
a randomized multi-offer extension brings no additional benefit.Comment: An earlier, shorter version of this paper appeared in Proceedings of
the Twenty-Fourth International joint conference on Artificial Intelligence
(IJCAI) 201
- …