High Level Overview of IR

An Information Retrieval system, commonly known as a search engine, is a tool that takes as input some query and returns as output some set of information. This paper will focus on IR systems that take textual queries as input and returns a set of documents as output.

 
• User-level View
• Query Expansion and Relevance Feedback
• Term Weighting and Term Selection
• Common IR Techniques
• Evaluation and Comparison of IR systems