svvamp 0.0.4

Simulator of Various Voting Algorithms in Manipulating Populations

SVVAMP

Simulator of Various Voting Algorithms in Manipulating Populations

• Free software: GNU General Public License version 3.

• Code: https://github.com/francois-durand/svvamp.

• Documentation: https://svvamp.readthedocs.org.

• Installation: https://svvamp.readthedocs.org/en/latest/installation.html.

Features

• Define populations of voters with preferences over a set of candidates. Preferences can be generated by several probabilistic models, entered manually or imported from an external file.

• Compute the result of several voting systems (ballots, winner, scores, etc.).

• Decide Condorcet notions.

• Decide Independence of Irrelevant Alternatives.

• Decide Individual Manipulation.

• Decide Coalitional Manipulation and variants: Ignorant-Coalition Manipulation, Trivial Manipulation and Unison Manipulation.

History

0.0.4 (2015-03-10)

• Correct a minor bug in Plurality.IM (voters_IM is now updated).

0.0.3 (2015-02-28)

• Rename functions and attributes with suffix _vtb to _rk.

• Allow to define a population by both utilities and rankings.

• Add shift to Euclidean box model.

• Range voting / Majority Judgment: with a discrete set of grades, send to closest authorized grades.

0.0.2 (2015-02-16)

• 8 population models and 23 voting systems.

0.0.1 (2015-02-14)

• First release on PyPI.