Information processing device, information processing method, and program
First Claim
1. An information processing device comprising:
- one or more processors configured to;
acquire, from a position sensor, an immediate movement history which comprises time series position data;
receive, from a memory, search data which comprises past time series position data;
calculate a similarity, as a goodness of fit, between the immediate movement history and the past time series position data,wherein the goodness of fit is calculated based on distances between a first plurality of positions including a current position and at least one position preceding the current position in the immediate movement history and a second plurality of positions corresponding to the first plurality of positions, in the past time series position data andwherein the second plurality of positions are obtained by tracking back a number of positions from a predetermined position in the past time series position data;
determine whether or not the goodness of fit calculated for the past time series position data and the immediate movement history is a predetermined threshold or more; and
control an acquisition interval of the position sensor to acquire the time series position data according to the determination of the goodness of fit.
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Accused Products
Abstract
The present technique relates to an information processing device, an information processing method and a program which can accumulate sufficient movement history data with a little power consumption. A similarity search unit searches for a past route similar to the immediate movement history which is acquired by a position sensor unit and which has time series position data, from the search data stored in a past history DB. A fitness determination unit determines whether or not goodness of fit of the past route searched by the similarity search unit and the immediate movement history is a predetermined threshold or more. A sensor control unit controls an acquisition interval of the position data of the position sensor unit according to a determination result of the fitness determination unit. The technique of this disclosure is applicable to a prediction device which, for example, acquires position data and predicts a predicted route.
22 Citations
17 Claims
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1. An information processing device comprising:
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one or more processors configured to; acquire, from a position sensor, an immediate movement history which comprises time series position data; receive, from a memory, search data which comprises past time series position data; calculate a similarity, as a goodness of fit, between the immediate movement history and the past time series position data, wherein the goodness of fit is calculated based on distances between a first plurality of positions including a current position and at least one position preceding the current position in the immediate movement history and a second plurality of positions corresponding to the first plurality of positions, in the past time series position data and wherein the second plurality of positions are obtained by tracking back a number of positions from a predetermined position in the past time series position data; determine whether or not the goodness of fit calculated for the past time series position data and the immediate movement history is a predetermined threshold or more; and control an acquisition interval of the position sensor to acquire the time series position data according to the determination of the goodness of fit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An information processing method comprising:
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in one or more processors; acquiring, from a position sensor, an immediate movement history which comprises time series position data; receiving, from a memory, search data which comprises past time series position data; calculating a similarity, as a goodness of fit, between the immediate movement history and the past time series position data, wherein the goodness of fit is calculated based on distances between a first plurality of positions including a current position and at least one position preceding the current position in the immediate movement history and a second plurality of positions corresponding to the first plurality of positions in the past time series position data, and wherein the second plurality of positions are obtained by tracking back a number of positions from a predetermined position in the past time series position data; determining whether or not the goodness of fit calculated for the past time series position data and the immediate movement history is a predetermined threshold or more; and controlling an acquisition interval of the position sensor to acquire the time series position data according to the determination of the goodness of fit.
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17. A non-transitory computer readable medium having stored thereon, a set of computer-executable instructions, for causing a computer to perform steps comprising:
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acquiring, from a position sensor, an immediate movement history which comprises time series position data; receiving, from a memory, search data which comprises past time series position data; calculating a similarity, as a goodness of fit, between the immediate movement history and the past time series position data, wherein the goodness of fit is calculated based on distances between a first plurality of positions including a current position and at least a position preceding the current position in the immediate movement history and a second plurality of positions corresponding to the first plurality of positions in the past time series position data, and wherein the second plurality of positions are obtained by tracking back a number of positions from a predetermined position in the past time series position data; determining whether or not the goodness of fit calculated for the past time series position data and the immediate movement history is a predetermined threshold or more; and controlling an acquisition interval of the position sensor to acquire the time series position data according to the determination result of the goodness of fit.
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Specification