Method and apparatus for determining rule in database
First Claim
1. A method for determining a rule associated with an objective attribute of data in a database to predict the objective attribute value of data, said method comprising the steps of:
- storing values relative to data belonging to each bucket, said values corresponding to each said bucket in a plane, wherein said plane has two axes respectively corresponding to two predicative numeric attributes of data and is divided into N×
M buckets;
segmenting a bucket region that is satisfied with a predetermined condition, from said plane;
performing a smoothing processing for a boundary of the segmented bucket region; and
determining a rule for predicting the object attribute value of said data by the smoothed region.
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Abstract
When determining a rule associated with an objective attribute of data in a database to predict the objective attribute value of data, following steps are performed: storing values relative to data belonging to each bucket wherein the values correspond to each bucket in a plane, and the plane has two axes respectively corresponding to two predicative numeric attributes of data and is divided into N×M buckets; segmenting a bucket region that is satisfied with a predetermined condition, from the plane; performing a smoothing processing for a boundary of the segmented bucket region; and determining a rule for predicting the object attribute value of the data by the smoothed region.
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Citations
19 Claims
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1. A method for determining a rule associated with an objective attribute of data in a database to predict the objective attribute value of data, said method comprising the steps of:
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storing values relative to data belonging to each bucket, said values corresponding to each said bucket in a plane, wherein said plane has two axes respectively corresponding to two predicative numeric attributes of data and is divided into N×
M buckets;
segmenting a bucket region that is satisfied with a predetermined condition, from said plane;
performing a smoothing processing for a boundary of the segmented bucket region; and
determining a rule for predicting the object attribute value of said data by the smoothed region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for determining a rule associated with an objective attribute of data in a database to predict the objective attribute value of data, comprising:
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means for storing values relative to data belonging to each bucket, said values corresponding to each said bucket in a plane, wherein said plane has two axes respectively corresponding to two predicative numeric attributes of data and is divided into N×
M buckets;
means for segmenting a bucket region that is satisfied with a predetermined condition, from said plane;
means for performing a smoothing processing for a boundary of the segmented bucket region; and
means for determining a rule for predicting the object attribute value of said data by the smoothed region.
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15. An apparatus for determining a rule associated with an objective attribute of data in a database to predict the objective attribute value of data, said apparatus comprising:
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a means for storing values relative to data belonging to each bucket, said values corresponding to each said bucket in a plane, wherein said plane has two axes respectively corresponding to two predicative numeric attributes of data and is divided into N×
M buckets;
a means for segmenting a bucket region that is satisfied with a predetermined condition, from said plane;
a means for performing a smoothing processing for a boundary of the segmented bucket region; and
a means for determining a rule for predicting the object attribute value of said data by the smoothed region.
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16. A storage medium for storing a program for causing a computer to determine a rule associated with an objective attribute of data in a database to predict the objective attribute value of data, said program comprising the steps of:
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storing values relative to data belonging to each bucket, said values corresponding to each said bucket in a plane, wherein said plane has two axes respectively corresponding to two predicative numeric attributes of data and is divided into N×
M buckets;
segmenting a bucket region that is satisfied with a predetermined condition, from said plane;
performing a smoothing processing for a boundary of the segmented bucket region; and
determining a rule for predicting the object attribute value of said data by the smoothed region. - View Dependent Claims (17, 18, 19)
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Specification