Project: Topic/trend detection systems composed of crawler and extractor, topic extractor and topic detector. My project will focus on the crawler and extractor, which will restrict the web data from media resources. I observed that the existing approaches including the focused crawler intrinsically include Slow Intelligent System (SIS) modeling principles including Enumerate, Adapt, Eliminate and Concentrate. Time controller model has not been introduced yet to the existing approaches. For the first phase of my project, I will select the most proper solutions from focused crawlers, other adaptive crawlers and extractors with respect to closeness of SIS models. The selected approaches can be modeled as relevant SIS patterns (e.g., Classifier from focused crawlers can be modeled Enumerator or Adaptor) and attributes for the extracted models. Then finally the informally modeled patterns can be represented as PetriNet model or relevant modeling, which can be exported as an XML format. I will: 1) Investigate patterns for the existing approaches to restrict the web data 2) Model the patterns of 1) in SIS principles by utilizing PetriNet or other relevant modeling tools. Comments: What patterns? You need to be more specific by giving perhaps one example of a patter you found.