Vasco Furtado, Leonardo Ayres, Marcos de Oliveira, Carlos Gustavo, Juliana Oliveira
Collaboration is on the rise, primarily leveraged by the Web 2.0 in which the quantitative difference between information producer and consumer decreases significantly. In this paper, we describe WikiCrimes, a typical Web 2.0 application that offers a collaborative environment, based on the use and direct manipulation of maps in order to register and search criminal events. WikiCrimes is driven by three goals: i) to give more transparency and publicity to criminal information, ii) to provide means for citizen prevention, and iii) to reduce the phenomena of under-reporting (crimes that are not reported to authorities). We pay particular attention to how WikiCrimes can be leveraged by semantic web by means of the use of explanation ontologies to connect people, provide information about reliable and reputable sources, and provide rich filter mechanisms for citizen information and prevention.