PROBLEM TO BE SOLVED: To accurately process information of a spot that is visited by a visitor.;SOLUTION: A visit spot detection device in the embodiment is characterized by: detecting a visit spot corresponding to the beacon closest to a visitor for each of predetermined time, based on a threshold of a received electric wave strength concerning at least one beacon and a detection parameter including the threshold of the radio wave receiving frequency; creating a character string including the character string obtained by arranging each detected spot in the visit order about the spot detected in the pattern of the parameter; finding perplexity serving as an index of prediction accuracy from a character just before that to the next character in the created character string, based on evaluation results according to a statistical language model to the continuity of the spot detected in this character string; and outputting the information of the visit spot detected by using the parameter used when the number of the detected spot type is the predetermined number or more in each of the pattern and the value of the perplexity is the smallest.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT
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