1. A computer-implemented method, comprising: selecting a candidate query in a query sequence stored in a query log, the query sequence including an initial query and one or more revised queries and defining an order in which the queries were submitted for a search session; selecting a revised query subsequent to the candidate query in the order; determining a probability of revision from the candidate query to the revised query; determining a probability of entry of the revised query; and determining that the probability of revision from the candidate query to the revised query is greater than the probability of entry of the revised query, and in response: identifying a navigational resource for the revised query; and associating the navigational resource with the candidate query, the association specifying the navigational resource as being relevant to the candidate query in a search operation.