Internet search engines are the central startting point for satisfying today‘s information needs. These engines are representatives of the broader class of informaiton retrieval systems, which are applied in many other environments (like e.g. internet shops, digital libraries, help systems, enterprise search).
This course will introduce the basic models and concepts for content-oriented search in the Web and other text collections. collections of text documents. of this area. In the exercises, examples will deepen the understanding of the theoretical concepts, and small practical exercises will be carried out. In the lab part, students will wokr on th configuration, application and evaluation of search engines.
- Basic concepts (information literacy, vagueness and uncertainty, data, information and knowledge)
- Representation of text content (free text search, classifications, ontologies)
- Models (boolean, fuzzy, vector space, probabilistic retrieval, Web retrieval)
. Evaluation (effectiveness vs efficiency, relevance, metrics for boolean retrieval, evaluation of linear rankings)
- Interactive Retrieval (information seeking behavior; information search; system functions, user interfaces)
- Bruce Croft, Donald Metzler, Trevor Strohman: Search Engines: Information Retrieval in Practice by Addison Wesley, 2009.
- Christopher D. Manning, Prabhakar Raghavan and Hinrich Schütze, Introduction to Information Retrieval, Cambridge University Press. 2008.