Expert search device, expert search method and expert search program

摘要

An information processing method executed by an information processing apparatus, includes receiving a keyword; extracting one or more experts related to a document including the keyword from document information, the document information including a plurality of documents registered within a period of time including a plurality of periods and information on an expert related to each of the plurality of documents; determining a score in each period based on a ratio of a number of registered documents related to the keyword to a number of all registered documents and a coefficient increased in value as the period becomes newer, with respect to each of the one or more experts; determining an expert value related to the keyword for each of the one or more experts by adding together the score in each period; and ranking each of the one or more experts based on comparison of the expert value.