| 摘要 |
A method is disclosed for rendering advertisement messages to a user of a mobile device according to the user's commercial interests determined based upon contents of voice communication. A display screen of a mobile device is used to present an advertisement message during or after a voice communication. The contents of the voice communication are recorded and analyzed. According to one aspect of the present invention, the user's commercial interest is determined by ranking frequency of appearance of keywords. According to another aspect, the user's commercial interest is determined by ranking an increased rate of appearance of the keywords over a period of time.
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