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                      | Detailed information |  
                      | Original study plan | Master's programme Computer Science 2021W |  
                      | Objectives | Students have competence in fundamentals and technologies of (1) Information Retrieval, comprising representation, storage and retrieval of textual unstructured information, (2) Information Extraction, comprising Named Entity Recognition (NER) and Natural Language Processing/Understanding (NLP/NLU), and (3) Dialogue Systems. They are able to implement and evaluate applications in these fields and have knowledge about related fields and current research topics. |  
                      | Subject | 1) Fundamentals and concepts of traditional information retrieval (IR) Document representation: indexing, weighting (tf*idf)
IR models: boolsch, vector space etc.
Architectures and (natural language) user interfaces
Evaluation in IR: recall, precision
Related concepts: string similarity, thesaurus, classification, relevance feedback, query expansion, context-based IR
IR tools and applications
 2) Fundamentals and concepts of information extraction (IE)
 IE types: NER, relation extraction etc.
IE approaches and architectures: focusing on knowledge/rule-based approaches
natural language processing/understanding (NLP/NLU)
evaluation in IE
IE tools and applications
 3)Fundamentals and concepts of dialogue systems (DS)
 properties of human conversation, dialogue structure and state
DS approaches, architectures, end evaluation 
search and extraction in dialogue systems
DS tools and applications
 4) Selected topics and current research
 information filtering & recommender systems
text recognition, optical character recognition (OCR)
multilingual/crosslingual IR
text summarization
natural language generation (NLG) etc
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                      | Criteria for evaluation | exercises, exam, in-class contribution |  
                      | Methods | slide presentation (slides on Moodle), exercises (group work) |  
                      | Language | English |  
                      | Study material | Ricardo Baeza-Yates, Berthier Ribeiro-Neto: Modern Information Retrieval, Addison Wesley 2010
Christopher D. Manning, Prabhakar Raghavan and Hinrich Schütze: Introduction to Information Retrieval, Cambridge University Press 2008
W. Bruce Croft, Donald Metzler, Trevor Strohman: Search Engines – Information Retrieval in Practice, Pearson 2009
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                      | Changing subject? | No |  
                      | Corresponding lecture | in collaboration with 921INSYASWK13: KV Accessible Software and Web Design (1,5 ECTS) equivalent to INMIPKVKCSY: KV Knowledge-centered Systems (4,5 ECTS)
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