The complexity of controlling candidate-sequential elections

@article{Hemaspaandra2017TheCO,
  title={The complexity of controlling candidate-sequential elections},
  author={Edith Hemaspaandra and Lane A. Hemaspaandra and J{\"o}rg Rothe},
  journal={Theor. Comput. Sci.},
  year={2017},
  volume={678},
  pages={14-21}
}
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12 Citations
Background Citations
4
Methods Citations
3
Results Citations
1

12 Citations

Complexity of control by partitioning veto elections and of control by adding candidates to plurality elections
TLDR
It is observed that a reduction from the literature showing the parameterized complexity of control by adding candidates to plurality elections, parameterized by the number of voters, is technically flawed, and it is shown how this reduction can be adapted to make it correct.
Closing the Gap of Control Complexity in Borda Elections : Solving Twelve Open Cases 1
We consider the problem of control in elections where an election chair seeks to either make a designated candidate win, or prevent her from winning, via actions such as adding, deleting, or…
The Complexity of Online Bribery in Sequential Elections
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It is shown that even for election systems whose winner-determination problem is polynomial-time computable, an online, sequential setting may vastly increase the complexity of bribery, in fact jumping the problem up to completeness for high levels of thePolynomial hierarchy or even PSPACE.
Election-Attack Complexity for More Natural Models
TLDR
A model of electoral control in the setting where some of the voters act strategically (i.e., are manipulators) is introduced, and both the case where the agent controlling the election and the manipulators share a goal, and the cases where they have competing goals are considered.
Solving Seven Open Problems of Offline and Online Control in Borda Elections
TLDR
This work reduces the number of missing cases by pinpointing the complexity of three control scenarios for Borda elections, including some that arguably are among the practically most relevant ones.
Optimal defense against election control by deleting voter groups
Borda Count in Collective Decision Making: A Summary of Recent Results
TLDR
It is described how Borda can be used to maximize social welfare when indivisible goods are to be allocated to agents with ordinal preferences and the use of Borda in forming coalitions of players in a certain type of hedonic game is illustrated.
Dynamic Proportional Rankings
TLDR
This work proposes generalizations of well-known aggregation rules to this setting and studies their monotonicity and proportionality properties, and evaluates the performance of these rules experimentally, using realistic probabilistic assumptions on the selection procedure.
How Can We Model Emotional and Behavioral Dynamics in Collective Decision Making?
  • J. Rothe
  • Psychology
    The Future of Economic Design
  • 2019
TLDR
It is proposed to model collective decision making more dynamically and by taking into account how the agents’ preferences and behavior evolve over time and based on their emotions.
Perpetual Voting: Fairness in Long-Term Decision Making
TLDR
This paper explores the proposed voting rules via an axiomatic analysis as well as a quantitative evaluation by computer simulations and identifies two perpetual voting rules as particularly recommendable in long-term collective decision making.
...
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