Complex Event Processing in Heterogeneous Domains

The technique of recording and evaluating (processing) streams of data about occurrences and drawing conclusions from them is known as Complex Event Processing, or CEP. In recent years, due to ever-increasing security concerns, CEP is being applied increasingly broadly in heterogeneous domains in order to detect potentially dangerous events early or even prevent their occurrence; possible examples are bank robberies in the context of video surveillance, or identity theft in the domain of social network analysis. For such reasons, in this paper we propose a survey reporting the most interesting and innovative approaches to complex event processing in heterogeneous domains; specifically, here we focus on video analysis, social network analysis, and healthcare, classifying the papers into different subcategories and highlighting their advantages and disadvantages.