Keynote Speakers

Fabio Crestani

The Challenges of Opinion Retrieval

Abstract : Opinion retrieval is concerned with finding documents that are both relevant and opinionated to a user information need. Information retrieval (IR) has dealt with relevance for a long time, but opinion is a more recent issue whose solution seems to go beyond what can be achieved with the techniques developed in IR. In this talk I will present some of the challenges that opinion retrieval brings to IR and show how we can still find acceptable solutions to it within IR, without resorting to Natural Language Processing techniques that would not scale up easily.