Understanding complex casual leisure information needs: an analysis of search requests for books, games, movies and music.

In this paper, we introduce the CRISPS (CRoss-domaIn relevance aSPects Scheme) coding scheme for complex information needs in the four leisure domains of books, games, movies and music. It categorizes the relevance aspects people consider when searching for these resources. The coding scheme and findings help search engines to better support complex information needs, both by prioritizing which aspects are easier to classify automatically and by determining which information sources should be considered.

A cross-domain classification scheme for relevance aspects and information needs in casual leisure domains (CRISPS) is developed and applied. The paper provides the documentation of the scheme development and annotation process as well as a detailed, large-scale analysis of 2000 requests (500 per domain) and relevance aspects for four domains as expressed in complex search requests in everyday life information seeking posted to online forums.

We identify and discuss relevance aspect frequencies, information need types and the described search process of the requests. Furthermore, the coding scheme development and the annotation process are documented and reflected on.
This is the first categorization and analysis of complex information needs in these four leisure domains combined. The coding scheme and findings can be used to develop new types of search interfaces that incorporate the kinds of relevance aspects identified in the scheme, allowing to express complex needs in the form of structured queries.