Searching the Web for Illegal Content: The Anatomy of a Semantic Search Engine

In this paper we describe the challenges in the realization of a semantic search engine, suited to help law enforcements in the fight against the online drug marketplaces, where New Psychoactive Substances (NPS) are sold. This search engine has been developed under the Semantic Illegal Content Hunter (SICH) Project, with the financial support of the Prevention of and Fight Against Crime Programme ISEC 2012 European Commission. The SICH Project specific objective is to develop new strategic tools and assessment techniques, based on semantic analysis on texts, to support the dynamic mapping and the automatic identification of illegal content over the Net.

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