TU Wien:Grundlagen des Information Retrieval VU (Rauber)/Prüfung 2012-06-11

folgende Fragen sind gekommen:

• Either show that there always exists a break-even point in the precision-recall curve or show a counterexample where this is not the case.
• An example where pooling is not appropriate
• 3 genres which can't be easily identified by accustic features. Describe how you might identify them
• Explain 3 MPEG-7 features
• What are document surrogates, information which they contain, ...
• What's the problem with the standard information retrieval model (skizze war gegeben). How does berry picking improve this problem?
• Difference between constitutional and dependence parser + examples
• What's the difference in IE evaluation and IR evaluation.