{"type":"ScholarlyArticle","title":"Time-Constrained Participatory Budgeting Under Uncertain Project Costs","authors":[{"name":"Dorothea Baumeister","slug":"dorothea-baumeister","given":"Dorothea","family":"Baumeister","affiliation":"University Düsseldorf"},{"name":"Linus Boes","slug":"linus-boes","given":"Linus","family":"Boes","affiliation":"University Düsseldorf"},{"name":"Christian Laußmann","slug":"christian-lau-mann","given":"Christian","family":"Laußmann","affiliation":"University Düsseldorf"}],"abstract":"In participatory budgeting the stakeholders collectively decide which projects from a set of proposed projects should be implemented.\r\nThis decision underlies both time and monetary constraints.\r\nIn reality it is often impossible to figure out the exact cost of each project in advance, it is only known after a project is finished.\r\nTo reduce risk, one can implement projects one after the other to be able to react to higher costs of a previous project.\r\nHowever, this will increase execution time drastically.\r\nWe generalize existing frameworks to capture this setting, study desirable properties of algorithms for this problem, and show that some desirable properties are incompatible.\r\nThen we present and analyze algorithms that trade-off desirable properties.","doi":"10.24963/ijcai.2022/11","url":"https://ijcai.org/proceedings/2022/11","pdf":"https://ijcai.org/proceedings/2022/0011.pdf","markdown":"https://ijcai.org/proceedings/2022/11.md","bibtex":"https://ijcai.org/proceedings/2022/bibtex/11","volume":{"slug":"2022","title":"Proceedings of the Thirty-First International Joint Conference on Artificial Intelligence","short_title":"IJCAI 2022","url":"https://ijcai.org/proceedings/2022/","year":2022,"location":"Vienna","dates":"23-29 July 2022","editors":"Luc De Raedt","isbn":"978-1-956792-00-3","publisher":"International Joint Conferences on Artificial Intelligence Organization","doi_prefix":"10.24963/ijcai.2022"},"section":"Agent-based and Multi-agent Systems","track":"Main Track","number":11,"pages":{"first":74,"last":80},"keywords":["Planning and Scheduling: Planning with Incomplete Information","Agent-based and Multi-agent Systems: Computational Social Choice"],"videos":[{"label":"Video #1","url":"https://slideslive.com/38986966","length_sec":64,"provider":"slideslive"},{"label":"Video #2","url":"https://slideslive.com/38985109","length_sec":598,"provider":"slideslive"}],"references":[{"position":1,"raw":"[Aziz and Shah, 2021] Haris Aziz and Nisarg Shah. 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