A computer system presents retrieved documents to a user, with documents most similar to documents in which the user previously showed high interest being ranked higher than other retrieved documents. The system compares a query vector with feedback query vectors, where each feedback query vector is associated with at least one user feedback vector, and each user feedback vector indicates an aggregate user interest in documents including terms associated with the user feedback vector. The system determines a feedback query vector that is most similar to the query vector, compares the document vectors with a user feedback vector associated with the most similar feedback query vector, and determines the document vector that is most similar to such user feedback vector. The document associated with the most similar document vector is ranked higher than the remaining retrieved documents, when presented to the user.