DOCUMENT PROCESSOR, DOCUMENT PROCESSING METHOD AND PROGRAM

PROBLEM TO BE SOLVED: To provide a document processor for reducing possibility that an order with which document specification information for specifying a document whose correlation with a character string for retrieval is small is output is excessively set to a high order.SOLUTION: A document processor 100 includes: a retrieval processing execution part 102 for executing retrieval processing to specify a document including the same character string as an accepted character string for retrieval, and to, with respect to each of the specified documents, generate document specification information for specifying the document and order information showing an order with which the document specification information is output; a retrieval result storage part 103 for storing a character string for retrieval and the document specification information generated with respect to the character string for retrieval in association with each other; and an order correction part 104 for, when the accepted character string for retrieval is matched with a portion of the character string for retrieval stored in association with the document specification information generated by the retrieval processing, correcting the order information to decrease the order shown by the order information generated with respect to the document specification information.