| 摘要 |
A database tool comprises a computer-implemented method for extracting systematic information from one or more databases that apparently only comprise data noise or seemingly unrelated data items. Criminal and community relationships that exist amongst telephone and internet subscribers are extracted from large telephone databases derived from wire taps and/or long distance telephone records. A telephone records file is used that comprises a caller's telephone number, dialed telephone numbers, and the time. A second database comprises a list of telephone numbers which are suspicious for some reason, and a descriptor as to why each such telephone number is suspicious. A third database includes biographical data about the telephone subscribers, such as name, address, and other facts. The unique telephone numbers in the database are identified. Matches between the first and second databases are made. Related components are grouped into clusters. The valence for each telephone number is computed. The relational distances between each pair of telephone numbers in a cluster are determined. The telephone numbers are represented as points in the x,y-plane of a display, with the distance between the points representing the strength of the relationship based on call frequency and other criteria. An interactive interface is provided for the user to click on items to see the background information associated with each point.
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