Number of terminal estimation device and number of terminal estimation method

A number-of-terminals estimation system comprising:

• circuitry configured to
• acquire location data including identification information to identify a mobile terminal, location information about a location of the mobile terminal, and location acquisition time information on a time when the location information is acquired;
• acquire as observation target location data, one or more pieces of location data, each as first location data, including location acquisition time information after an observation start time and before an observation end time about an observation period to be observed, and including location information associated with observation area information about an observation area to be observed;
• for each piece of the first location data, acquire location acquisition time information of second location data which is location data acquired at a time preceding the first location data, and location acquisition time information of third location data which is location data acquired at a time following the first location data, from location data including the same identification information as that of the first location data;
• for each piece of the first location data, calculate a feature amount of the first location data, based on at least a location acquisition time of the second location data and a location acquisition time of the third location data;
• and
• estimate a value of a number of mobile terminals located in the observation area during the observation period, based on the feature amount calculated for each piece of the first location data, and a length of the observation period which is a difference between the observation start time and the observation end time.

A number-of-terminals estimation method executed by a number-of-terminals estimation system having circuitry, comprising:

• acquiring location data including identification information to identify a mobile terminal, location information about a location of the mobile terminal, and location acquisition time information on a time when the location information is acquired;
• acquiring as observation target location data, one or more pieces of location data, each as first location data, including location acquisition time information after an observation start time and before an observation end time about an observation period to be observed, and including location information associated with observation area information about an observation area to be observed;
• for each piece of the first location data, acquiring location acquisition time information of second location data which is location data acquired at a time preceding the first location data and location acquisition time information of third location data which is location data acquired at a time following the first location data, from location data including the same identification information as that of the first location data;
• for each piece of the first location data, calculating a feature amount of the first location data, based on at least two of the location acquisition time information of the first location data, the location acquisition time information of the second location data, and the location acquisition time information of the third location data;
• and
• estimating, by the circuitry, a value of a number of mobile terminals located in the observation area during the observation period, based on the feature amount calculated for each piece of the first location data obtained by the calculation, and a length of the observation period which is a difference between the observation start time and the observation end time.

A number-of-terminals estimation method executed by a number-of-terminals estimation system having circuitry, comprising:

• acquiring location data, each piece being acquired as first location data, including identification information to identify a mobile terminal, location information about a location of the mobile terminal, and location acquisition time information on a time when the location information is acquired;
• for each piece of the first location data, acquiring location acquisition time information of second location data which is location data acquired at a time preceding the first location data and location acquisition time information of third location data which is location data acquired at a time following the first location data, from location data including the same identification information as that of the first location data;
• calculating feature amounts of respective pieces of all the first location data, based on at least two of the location acquisition time information of the first location data, the location acquisition time information of the second location data, and the location acquisition time information of the third location data;
• acquiring as observation target location data, one or more pieces of the first location data including location acquisition time information after an observation start time and before an observation end time about an observation period to be observed, and including location information associated with observation area information about an observation area to be observed;
• and
• estimating, by the circuitry, a value of a number of mobile terminals located in the observation area during the observation period, based on a feature amount of the observation target location data out of the feature amounts of the respective pieces of all the first location data obtained by calculation, and a length of the observation period which is a difference between the observation start time and the observation end time.

A number-of-terminals estimation method executed by a number-of-terminals estimation system having circuitry, comprising:

• acquiring location data including identification information to identify a mobile terminal, location information about a location of the mobile terminal, and location acquisition time information on a time when the location information is acquired;
• acquiring as observation target location data, one or more pieces of location data, each as first location data, including location acquisition time information after an observation start time and before an observation end time about an observation period to be observed, and including location information associated with observation area information about an observation area to be observed;
• for each piece of the first location data, acquiring location acquisition time information of second location data which is location data acquired at a time preceding the first location data and location acquisition time information of third location data which is location data acquired at a time following the first location data, from location data including the same identification information as that of the first location data;
• for each piece of the first location data, calculating a feature amount of the first location data, based on at least a location acquisition time of the second location data and a location acquisition time of the third location data;
• and
• estimating, by the circuitry, a value of a number of mobile terminals located in the observation area during the observation period, based on the feature amount calculated for each piece of the first location data, and a length of the observation period which is a difference between the observation start time and the observation end time.

A number-of-terminals estimation method executed by a number-of-terminals estimation system having circuitry, comprising:

• acquiring location data, each piece being acquired as first location data, including identification information to identify a mobile terminal, location information about a location of the mobile terminal, and location acquisition time information on a time when the location information is acquired;
• for each piece of the first location data, acquiring location acquisition time information of second location data which is location data acquired at a time preceding the first location data and location acquisition time information of third location data which is location data acquired at a time following the first location data, from location data including the same identification information as that of the first location data;
• calculating a feature amount of each piece of all the first location data, based on at least a location acquisition time of the second location data and a location acquisition time of the third location data;
• acquiring as observation target location data, one or more pieces of the first location data including location acquisition time information after an observation start time and before an observation end time about an observation period to be observed, and including location information associated with observation area information about an observation area to be observed;
• and
• estimating, by the circuitry, a value of a number of mobile terminals located in the observation area during the observation period, based on a feature amount of the observation target location data out of the feature amounts of the respective pieces of all the first location data obtained by the calculation, and a length of the observation period which is a difference between the observation start time and the observation end time.