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Query Adaptation Techniques
“In the course of a search session, a user creates and moves along a path of images. In every iteration, the path changes and the query needs to be adapted accordingly. The objects are treated as evidence of the user’s information need, with a changing degree of uncertainty associated to each object: the older the evidence, the more uncertain it is that it is still indicative of the current information need. The degree of uncertainly is represented by the ostensive relevance profile.
The query is comprised of the weighted sum of evidence found in the path objects … collected from the documents’ features.”
[See sections 4 & 4.1]