Publication: Research - peer-review › Paper
evidence or practical application has so far validated this model.
We extend the work of Lioma et al. (2010) , by providing a practical application and analysis of the model. We show how to map the abstract notions of belief and uncertainty to real-life evidence drawn from a retrieval dataset.
We also show how to estimate two dierent types of polyrepresentation assuming either (a) independence or (b) dependence between the information objects that are combined.
We focus on the polyrepresentation of different types of context relating to user information needs (i.e. work task, user background knowledge, ideal answer) and show that the subjective logic model can predict their optimal combination
prior and independently to the retrieval process.
|Publication date||24 Aug 2012|
|Number of pages||10|