| 摘要 |
A system and method for transaction profiling (103) in a privacy-protected manner (915), wherein the transaction generally refers to an intentional action by a user. For example, in the context of television programming, the transaction data may relate to programming and advertisements watched by the user over a pre-determined period of time (905). A transaction profile vector (103) based on the evaluation of the recorded transaction data (905) is then computed, wherein the transaction profile vector may include demographic attributes such as probable age, household size, income level of the user, or preference attributes indicating probable products and services preferred by the user. To protect privacy, the generation of the transaction profile vector (also known as profile vector) preferably takes place local to the transaction (925).
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