Results 11 to 20 of about 14,108 (307)

Coalition Structure Generation over Graphs [PDF]

open access: yesJournal of Artificial Intelligence Research, 2012
We give the analysis of the computational complexity of coalition structure generation over graphs. Given an undirected graph G = (N,E) and a valuation function v : P(N) → R over the subsets of nodes, the problem is to find a partition of N into connected subsets, that maximises the sum of the components’ values.
Thomas Voice   +2 more
openaire   +6 more sources

Comparing Discourse and Policy Network Approaches: Evidence from Water Policy on Micropollutants

open access: yesPolitics and Governance, 2020
To understand how actors make collective policy decisions, scholars use policy and discourse network approaches to analyze interdependencies among actors.
Simon Schaub, Florence Metz
doaj   +1 more source

Who influences nutrition policy space using international trade and investment agreements? A global stakeholder analysis

open access: yesGlobalization and Health, 2021
Background Regulation of food environments is needed to address the global challenge of poor nutrition, yet policy inertia has been a problem. A common argument against regulation is potential conflict with binding commitments under international trade ...
Kelly Garton   +2 more
doaj   +1 more source

Protest and Political Change in Ethiopia

open access: yesNordic Journal of African Studies, 2021
Ethiopia was until recently perceived to be a strong state, with a coherent governing coalition party, the Ethiopian Peoples’ Revolutionary Democratic Front, dominated by its minority Tigrayan component party.
Thea Forsén, Kjetil Tronvoll
doaj   +1 more source

Complexity of coalition structure generation

open access: yesInternational Joint Conference on Autonomous Agents and Multiagent Systems, 2011
We revisit the coalition structure generation problem in which the goal is to partition the players into exhaustive and disjoint coalitions so as to maximize the social welfare. One of our key results is a general polynomial-time algorithm to solve the problem for all coalitional games provided that player types are known and the number of player types
H. Aziz, B. de Keijzer (Bart)
openaire   +4 more sources

Solidarity in games with a coalition structure [PDF]

open access: yesMathematical Social Sciences, 2010
A new axiomatic characterization of the two-step Shapley value Kamijo (2009) is presented based on a solidarity principle of the members of any union: when the game changes due to the addition or deletion of players outside the union, all members of the union will share the same gains/losses.
Emilio Calvo, Esther Gutiérrez
openaire   +2 more sources

A Cross-Layer Optimization Approach for Energy Efficient Wireless Sensor Networks: Coalition-Aided Data Aggregation, Cooperative Communication, and Energy Balancing

open access: yesAdvances in Multimedia, 2007
We take a cross-layer optimization approach to study energy efficient data transport in coalition-based wireless sensor networks, where neighboring nodes are organized into groups to form coalitions and sensor nodes within one coalition carry out ...
Qinghai Gao   +3 more
doaj   +1 more source

The Two-Stage Game Approach to Coalition Formation: Where We Stand and Ways to Go

open access: yesGames, 2020
Coalition formation is often analysed in an almost non-cooperative way, as a two-stage game that consists of a first stage comprising membership actions and a second stage with physical actions, such as the provision of a public good.
Achim Hagen   +2 more
doaj   +1 more source

‘Triage, transition, and transformation’: Advocacy discourse in urban school reform

open access: yesEducation Policy Analysis Archives, 2019
Advocacy coalitions have the potential to be a vehicle for community-based education reform in urban school systems, where state legislatures have increasingly adopted top-down policies such as state takeover and accountability systems.
Sarah Winchell Lenhoff   +3 more
doaj   +1 more source

Coalition Formation Approaches for Cooperative Networks With SWIPT

open access: yesIEEE Access, 2017
This paper proposes three game-theoretic approaches for coalition formation in cooperative networks with simultaneous wireless information and power transfer.
Jie Ren   +4 more
doaj   +1 more source

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