Summary: Query Ambiguity Revisited: Clickthrough Measures for Distinguishing
Informational and Ambiguous Queries
Yu Wang
Math & Computer Science Department
Emory University
yu.wang@emory.edu
Eugene Agichtein
Math & Computer Science Department
Emory University
eugene@mathcs.emory.edu
Abstract
Understanding query ambiguity in web search re-
mains an important open problem. In this pa-
per we reexamine query ambiguity by analyz-
ing the result clickthrough data. Previously pro-
posed clickthrough-based metrics of query ambi-
guity tend to conflate informational and ambigu-
ous queries. To distinguish between these query
classes, we introduce novel metrics based on the
entropy of the click distributions of individual

Source: Agichtein, Eugene - Department of Mathematics and Computer Science, Emory University

Collections: Computer Technologies and Information Sciences