Evaluating hierarchical organisation structures for exploring digital libraries

Hall, Mark M., Fernando, Samuel, Clough, PaulD., Soroa, Aitor, Agirre, Eneko and Stevenson, Mark (2014) Evaluating hierarchical organisation structures for exploring digital libraries. Information Retrieval, 17 (4). pp. 351-379. DOI https://doi.org/10.1007/s10791-014-9242-y

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Abstract

Search boxes providing simple keyword-based search are insufficient when users have complex information needs or are unfamiliar with a collection, for example in large digital libraries. Browsing hierarchies can support these richer interactions, but many collections do not have a suitable hierarchy available. In this paper we present a number of approaches for automatically creating hierarchies and mapping items into them, including a novel technique which automatically adapts a Wikipedia-based taxonomy to the target collection. These approaches are applied to a large collection of cultural heritage items which is formed through the aggregation of other collections and for which no unified hierarchy is available. We investigate a number of novel user-evaluated metrics to quantify the hierarchies' quality and performance, showing that the proposed technique is preferred by users. From this we draw a number of conclusions as to what makes a hierarchy useful to the user.

Item Type: Article
Uncontrolled Keywords: Evaluation; Hierarchical structures; Exploratory search; Interactive information retrieval; Browsing
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Z Bibliography. Library Science. Information Resources > Z665 Library Science. Information Science
Divisions: Computing and Information Systems
Date Deposited: 21 Aug 2014 11:08
URI: http://repository.edgehill.ac.uk/id/eprint/6124

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