Aragón, PabloBermejo, YagoGómez, VicençKaltenbrunner, Andreas2019-05-162019-05-162018Aragon P, Bermejo Y, Gómez V, Kaltenbrunner A. Interactive discovery system for direct democracy. In: 2018 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM); 2018 Aug 28-31; Barcelona, Spain. New Jersey: Institute of Electrical and Electronics Engineers; 2018. p. 601-4. DOI: 10.1109/ASONAM.2018.85085542473-991Xhttp://hdl.handle.net/10230/37241Decide Madrid is the civic technology of Madrid City Council which allows users to create and support online petitions. Despite the initial success, the platform is encountering problems with the growth of petition signing because petitions are far from the minimum number of supporting votes they must gather. Previous analyses have suggested that this problem is produced by the interface: a paginated list of petitions which applies a non-optimal ranking algorithm. For this reason, we present an interactive system for the discovery of topics and petitions. This approach leads us to reflect on the usefulness of data visualization techniques to address relevant societal challenges.application/pdfeng© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The final published article can be found at https://ieeexplore.ieee.org/document/8508554info:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.1109/ASONAM.2018.8508554Online petitionsText clusteringData visualizationPlatform designCollective actione-democracyDecide MadridTechnopoliticsCivic technologyinfo:eu-repo/semantics/openAccess