Presenting Results of a Search Engine for Recorded Lectures in order to Support Relevance Decisions by the User

In addition to correct results, search engines often return documents with less or minor relevance. Therefore, one of the main challenges for search engine interface design is to present the results in a way that supports the users in selecting the documents that are really relevant for their particular information needs. In addition, different search tasks make varying demands on the interface design and different application domains allow to present different information to the users. In this paper, we discuss some issues evolving when designing a search engine for recorded lectures. An evaluation with different user interfaces for such a search engine is presented in order to identify the problems and issues that arise for this particular task.