23. A physical memory device including instructions, executable by one or more processors, to perform a method, the method comprising: submitting at least one search query to a search engine; identifying documents relevant to the at least one search query from the search engine, where the identified documents include web documents; obtaining data based on the at least one search query and the identified documents, where the obtained data includes: data that is based on a value indicating a portion of users that selected a document, from the identified documents, before selecting another document from the identified documents; and obtaining, based on the obtained data, predicted human relevance evaluations to rank the identified documents, the predicted relevance evaluations being obtained from an evaluation model based on the obtained data and based on information associated with human generated evaluations, where the evaluation model is trained to predict a human relevance evaluation of a particular document to a corresponding search query.
23. A physical memory device including instructions, executable by one or more processors, to perform a method, the method comprising: submitting at least one search query to a search engine; identifying documents relevant to the at least one search query from the search engine, where the identified documents include web documents; obtaining data based on the at least one search query and the identified documents, where the obtained data includes: data that is based on a value indicating a portion of users that selected a document, from the identified documents, before selecting another document from the identified documents; and obtaining, based on the obtained data, predicted human relevance evaluations to rank the identified documents, the predicted relevance evaluations being obtained from an evaluation model based on the obtained data and based on information associated with human generated evaluations, where the evaluation model is trained to predict a human relevance evaluation of a particular document to a corresponding search query. 26. The physical memory device of claim 23 , where the evaluation model is trained further based on a regression analysis technique.