Skip to yearly menu bar Skip to main content


Poster

Online Learning to Rank with Features

Shuai Li · Tor Lattimore · Csaba Szepesvari

Pacific Ballroom #128

Keywords: [ Bandits ]


Abstract:

We introduce a new model for online ranking in which the click probability factors into an examination and attractiveness function and the attractiveness function is a linear function of a feature vector and an unknown parameter. Only relatively mild assumptions are made on the examination function. A novel algorithm for this setup is analysed, showing that the dependence on the number of items is replaced by a dependence on the dimension, allowing the new algorithm to handle a large number of items. When reduced to the orthogonal case, the regret of the algorithm improves on the state-of-the-art.

Live content is unavailable. Log in and register to view live content