Item selecting apparatus, item selecting method and item selecting program
First Claim
1. An item selecting apparatus comprising:
- a usage characteristics information calculator configured to;
calculate an elapsed value as a difference between a time point of item time information representing a time point of creating an item or a time point of starting providing of the item and a given time point; and
calculate usage characteristics information of a use subject with respect to item usage conditions based on a distribution of elapsed values calculated for the use subject; and
an item selector configured to;
select a correspondence rule in accordance with the usage characteristics information from a plurality of correspondence rules with different characteristics;
calculate a novelty index for each item using the correspondence rule and the item time information;
calculate a popularity index as a numerical value associated with the number of usages for each item or the number of use subjects for each item;
calculate a priority that takes a higher value as the novelty index takes a higher value and the popularity index takes a higher value; and
select a recommendation item for the use subject based on the priority;
wherein the usage characteristics information calculator and the item selector are hardware or a combination of hardware and software.
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Accused Products
Abstract
In an item selecting apparatus performing a selection of an item to be recommended for each user, it is performed to calculate, with respect to each usage registration of an item by a user, an elapsed value as a difference between a time point of creating the item or staring providing of the item and a predetermined time point, acquire a usage characteristics of each user based on the elapsed value and calculate a freshness value representing a degree of freshness about each item. Further, using correspondence rules of different characteristics corresponding to the usage characteristics, it is performed to calculate a novelty index by applying the freshness value of each item on the correspondence rule corresponding to the usage characteristics of each user, calculate a priority of the item for each user, based on the novelty index and performing a selection of the item.
76 Citations
16 Claims
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1. An item selecting apparatus comprising:
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a usage characteristics information calculator configured to; calculate an elapsed value as a difference between a time point of item time information representing a time point of creating an item or a time point of starting providing of the item and a given time point; and calculate usage characteristics information of a use subject with respect to item usage conditions based on a distribution of elapsed values calculated for the use subject; and an item selector configured to; select a correspondence rule in accordance with the usage characteristics information from a plurality of correspondence rules with different characteristics; calculate a novelty index for each item using the correspondence rule and the item time information; calculate a popularity index as a numerical value associated with the number of usages for each item or the number of use subjects for each item; calculate a priority that takes a higher value as the novelty index takes a higher value and the popularity index takes a higher value; and select a recommendation item for the use subject based on the priority; wherein the usage characteristics information calculator and the item selector are hardware or a combination of hardware and software. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An item selecting method performed with a processor or a computing system for selecting an item, comprising the steps of:
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calculating an elapsed value as a difference between a time point of item time information representing a time point of creating an item or a time point of starting providing of the item and a given time point; calculating usage characteristics information of a use subject with respect to item usage conditions based on a distribution of elapsed values calculated for the use subject; selecting a correspondence rule in accordance with the usage characteristics information from a plurality of correspondence rules with different characteristics; calculating a novelty index for each item using the correspondence rule and the item time information; calculating a popularity index as a numerical value associated with the number of usages for each item or the number of use subjects for each item; calculating a priority that takes a higher value as the novelty index takes a higher value and the popularity index takes a higher value; and selecting a recommendation item for the use subject based on the priority.
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16. A non-transitory computer readable medium storing an item selecting program for causing a computer to execute the steps of:
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calculating an elapsed value as a difference between a time point of item time information representing a time point of creating an item or a time point of starting providing of the item and a given time point; calculating usage characteristics information of a use subject with respect to item usage conditions based on a distribution of elapsed values calculated for the use subject; selecting a correspondence rule in accordance with the usage characteristics information from a plurality of correspondence rules with different characteristics; calculating a novelty index for each item using the correspondence rule and the item time information; calculating a popularity index as a numerical value associated with the number of usages for each item or the number of use subjects for each item; calculating a priority that takes a higher value as the novelty index takes a higher value and the popularity index takes a higher value; and selecting a recommendation item for the use subject based on the priority.
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Specification