TY - RPRT Y1 - 2011/// A1 - Paolucci, Mario A1 - Picascia, Stefano A1 - Quattrociocchi, Walter N2 - In this paper, we describe a proposal for improving the practice of web-based collective filtering, in particular for what regards discussions and selection of issues about policy, based on the intuitive concept of causality. Causality, especially when presented in visual form, is especially suited to the task since it is intuitive to understand and to use, and at the same time, it's rich enough to create a semantic network between the representations of real world facts. We give some examples of the suggested system workflow and we present guidelines for its implementation. VL - doi:10.2139/ssrn.1846575 TI - Causality in collective filtering ID - eprints2110 UR - http://dx.doi.org/10.2139/ssrn.1846575 EP - 12 PB - SSRN KW - Causality KW - Crowdsourcing AV - public M1 - working_paper ER -