Soltanifar, M.Sharafi, H.Hosseinzadeh Lotfi, F.Pedrycz, W.Allahviranloo, T.2024-05-192024-05-1920232198-4182https://doi.org/10.1007/978-3-031-30403-3_5https://hdl.handle.net/20.500.12713/4458Vote aggregation models in preferential voting that use DEA policy use an optimistic view in candidate evaluation. This increases the number of efficient candidates. Basic models do not allow discrimination between efficient candidates. Therefore, researchers presented ranking models from different perspectives. Some of these models focus on vote structure and some on weight restrictions. In this chapter, some of these models and ideas are presented. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.eninfo:eu-repo/semantics/closedAccessBook Chapter47165912-s2.0-8515995889410.1007/978-3-031-30403-3_5Q4