Item Selecting Apparatus, Item Selecting Method and Item Selecting Program
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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 (S420), calculate a priority of the item for each user, based on the novelty index (S430) and performing a selection of the item (S440).
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Citations
37 Claims
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1-20. -20. (canceled)
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21. 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; and select a recommendation item for the usage subject based on the novelty index; wherein the usage characteristics information calculator and the item selector are hardware or a combination of hardware and software. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. An item selecting method 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; and selecting a recommendation item for the usage subject based on the novelty index.
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37. 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; and selecting a recommendation item for the usage subject based on the novelty index.
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Specification