Structural Relevance in XML Retrieval Evaluation

• Current approaches to evaluation in XML retrieval rely on ideal recall base • How to evaluate without defining an ideal recall base? • Our Approach: Differentiate between the relevance of a retrieval element in isolation and the relevance of a retrieval element as a member of a set (i.e. a ranked list) of nondisjoint elements using structure of elements in collection Documents XML Elements Measuring Effectiveness