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The growing number of textual reports poses a great challenge for investigative analysis. However, text visualization has the potential to address this problem by automating the analysis of text reports, thus reducing workloads and providing new insights for crime analysts. We are developing a crime report visualization system for such investigative analysis. Our system leverages natural language...
This paper presents a novel approach called PEPA (Perceptual Edges Preservation Algorithm) which enables computing machines to mimic the human vision capability in perceiving meaningful objects in an input scene, characterized in that the preserved edges are conformal to human vision perception. The approach mainly comprises three stages: (1) applying linear and nonlinear filtering to mimic the capability...
We used a design science approach to explore if a social visualization of the symmetry of relationships existing among members in an online community can motivate participation in terms of reciprocation and responding / commenting to each other's posts. Two different designs are presented: one successful and one that failed to stimulate acts of reciprocation among the users and to increase their level...
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