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Angle Seeking as a Scenario for Task-Based Evaluation of Information Access Technologies

In this paper we propose angle seeking as an appropriate task for the evaluation of information access technologies. We first describe angle seeking in the context of writing background to breaking news, analysing the types of information seeking activity it typically engenders, and then present a case study in which angle seeking forms the basis for a task-based evaluation in which a novel associative summary technology is compared with a conventional document retrieval engine. While neither technology is conclusively proved superior, this study both provides insights into these technologies and shows how a novel task-based evaluation can provide new information access technologies with a forum in which to establish themselves.