The Accessibility Dimension for Structured Document Retrieval
- Cite this paper as:
- Roelleke T., Lalmas M., Kazai G., Ruthven I., Quicker S. (2002) The Accessibility Dimension for Structured Document Retrieval. In: Crestani F., Girolami M., van Rijsbergen C.J. (eds) Advances in Information Retrieval. ECIR 2002. Lecture Notes in Computer Science, vol 2291. Springer, Berlin, Heidelberg
Structured document retrieval aims at retrieving the document components that best satisfy a query, instead of merely retrieving pre-defined document units. This paper reports on an investigation of a tf -idf -acc approach, where tf and idf are the classical term frequency and inverse document frequency, and acc, a new parameter called accessibility, that captures the structure of documents. The tf -idf -acc approach is defined using a probabilistic relational algebra. To investigate the retrieval quality and estimate the acc values, we developed a method that automatically constructs diverse test collections of structured documents from a standard test collection, with which experiments were carried out. The analysis of the experiments provides estimates of the acc values.
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