RETRIEVAL DEVICE, RETRIEVAL METHOD AND RETRIEVAL PROGRAM

摘要

PROBLEM TO BE SOLVED: To properly assist input when a user performs retrieval.SOLUTION: A retrieval device includes an acquisition part and a presentation part. The acquisition part acquires an attentional word that is attentional information determined to be focused for a prescribed period, on the basis of information that is information on Web content and contains information other than a retrieval query input in the past. The presentation part presents an attentional word to be attentional information corresponding to information input as the retrieval query as a candidate.