1. An information processing apparatus comprising: an evaluation information extraction section configured to extract evaluation information including an object targeted to be evaluated and an evaluation of said object targeted to be evaluated from a linguistic expression given as information expressed linguistically by a user of interest; an identification section configured to identify whether said evaluation information is of a first type regarding content or of a second type regarding another user; and an evaluation prediction section configured to predict the evaluation by said user of interest regarding said content, based on the evaluation information of said first type given by said user of interest and on the evaluation information given by said other user in the evaluation information of said second type given by said user of interest, wherein said evaluation information of said second type includes said evaluation information in which said linguistic expression given by said other user is targeted to be evaluated; and wherein said evaluation prediction section predicts the evaluation by said user of interest regarding said content, based on said evaluation information of said first type given by said user of interest and on said evaluation information included in said linguistic expression given by said other user targeted to be evaluated in said evaluation information of said second type given by said user of interest.