• William Hersh
Part of the Health Informatics book series (HI)

A recurring theme throughout the book thus far is that the information retrieval (IR) world has changed substantially since the first two editions, particularly with the ubiquity of the World Wide Web. From this, one would have expected a substantial increase in the amount and quality of evaluation research. However, this is not the case. While a modest number of new evaluation studies have appeared since the last edition, growth of evaluation research has not paralleled the explosion of new content and systems. This may well be due to the overall success and ubiquity of IR systems in the Web era, i.e., such systems are so ingrained in the lives of users that few believe that the need to evaluate them still exists. This is of course not the case, for much can be learned from looking at how these resources are used and from identifying areas calling for improvement.

In this chapter, we will mainly focus on the evaluation of operational IR systems. (Research system evaluation will be...


Medical Student User Satisfaction Retrieval Performance Information Retrieval System Relevance Judgment 
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Copyright information

© Springer Science + Business Media, LLC 2009

Authors and Affiliations

  • William Hersh
    • 1
  1. 1.Department of Medical Informatics & Clinical EpidemiologyOregon Health & Science UniversityBICC PortlandUSA

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