User information inferring system
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United States of America Patent
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Oct 18, 2005
Grant Date -
May 30, 2002
app pub date -
Sep 18, 2001
filing date -
Sep 20, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A user information inferring system defines user information according to five categories, that is, user environment, circumstance, condition, request, and action, and further defines a sixth category, that is, situation data encompassing these other five categories. User information in each of the defined categories, that is, environment, circumstance, condition, request, action, and situation, is then described using item values, and operating units infer the item values. The inference operation uses temporal-spatial characteristics indicative of the effect of temporal-spatial elements on the item values, information about inferred situations, a rule database containing rules describing the relationships between items, and an optimization process for the defined categories using vector expressions.
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