Search engines, which receive approximately a million requests per day, play a vital role in finding and filtering the vast amount of data available on the Web. On the basis of some algorithm, a search engine decides the rank of the page content and displays the pages in that order. In the...

Consider the problem faced by a decision maker (DM) who must select the order in which to evaluate the unknown alternatives displayed by an online search engine. DMs do not know the distribution of the realizations that result from clicking on an alternative and must therefore account for the...