Spatial data analysis apparatus and spatial data analysis method
First Claim
1. A spatial data analysis apparatus comprising:
- a storage configured to store a record group of records each including a multi-dimensional spatial attribute containing a place and a description attribute regarding the spatial attribute;
a divider configured to divide the record group into a plurality of virtual record groups corresponding to a plurality of places according to each of a plurality of conditions determined by the description attribute;
a calculator configured to calculate a degree of spatial dispersion of records of each of the plurality of virtual record groups in the places to obtain a plurality of degrees of dispersion; and
a selector configured to select from the conditions a condition corresponding to a virtual record group that indicates a lowest degree of dispersion among the degrees of dispersion, and whereinthe divider re-divides the virtual record group into a plurality of re-divided virtual record groups; and
the calculator computes a degree of spatial dispersion of records of each of the re-divided virtual record groups that are recursively generated by re-dividing recursively the virtual record group with the divider, to make a tree structure for determining a final division condition and a final virtual record group.
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Accused Products
Abstract
A spatial data analysis apparatus includes a storage configured to store a record group of records each including a multi-dimensional spatial attribute containing a place and a description attribute regarding the spatial attribute; a divider configured to divide the record group into a plurality of virtual record groups corresponding to a plurality of places according to each of a plurality of conditions determined by the description attribute; a calculator configured to calculate a degree of spatial dispersion of records of each of the plurality of virtual record groups in the places to obtain a plurality of degrees of dispersion; and a selector configured to select from the conditions a condition corresponding to a virtual record group that indicates a lowest degree of dispersion among the degrees of dispersion. The divider re-divides the virtual record group into a plurality of re-divided virtual record groups, and the calculator computes a degree of spatial dispersion of records of each of the re-divided virtual record groups that are recursively generated by re-dividing recursively the virtual record group with the divider, to make a tree structure for determining a final division condition and a final virtual record group.
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Citations
15 Claims
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1. A spatial data analysis apparatus comprising:
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a storage configured to store a record group of records each including a multi-dimensional spatial attribute containing a place and a description attribute regarding the spatial attribute; a divider configured to divide the record group into a plurality of virtual record groups corresponding to a plurality of places according to each of a plurality of conditions determined by the description attribute; a calculator configured to calculate a degree of spatial dispersion of records of each of the plurality of virtual record groups in the places to obtain a plurality of degrees of dispersion; and a selector configured to select from the conditions a condition corresponding to a virtual record group that indicates a lowest degree of dispersion among the degrees of dispersion, and wherein the divider re-divides the virtual record group into a plurality of re-divided virtual record groups; and the calculator computes a degree of spatial dispersion of records of each of the re-divided virtual record groups that are recursively generated by re-dividing recursively the virtual record group with the divider, to make a tree structure for determining a final division condition and a final virtual record group. - View Dependent Claims (2, 3, 4)
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5. A computer-implanted spatial data analysis method comprising:
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storing in a storage a record group of records each including a multi-dimensional spatial attribute containing a place and a description attribute regarding the spatial attribute; dividing the record group into a plurality of virtual record groups corresponding to a plurality of places according to each of a plurality of conditions determined by the description attribute; computing a degree of spatial dispersion of records of each of the plurality of virtual record groups in the places to obtain a plurality of degrees of dispersion; selecting from the conditions a condition corresponding to a virtual record group that indicates a lowest degree of dispersion among the degrees of dispersion; re-dividing the virtual record group into a plurality of re-divided virtual record groups; and computing with said computer a degree of spatial dispersion of records of each of the re-divided virtual record groups that are recursively generated, to make a tree structure for determining a final division condition and a final virtual record group. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A computer readable storage medium storing a spatial data analysis program which when executed by a computer causes the computer to perform steps comprising:
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storing in a storage a record group of records each including a multi-dimensional spatial attribute containing a place and a description attribute regarding the spatial attribute; dividing the record group into a plurality of virtual record groups corresponding to a plurality of places according to each of a plurality of conditions determined by the description attribute; dividing a degree of spatial dispersion of records of each of the plurality of virtual record groups in the places to obtain a plurality of degrees of dispersion; select selecting from the conditions a condition corresponding to a virtual record group that indicate a lowest degree of dispersion among the plurality of degrees of spatial dispersion; dividing virtually the selected virtual record group into a plurality of re-divided virtual record groups; and computing a degree of spatial dispersion of records of each of the re-divided virtual record groups that are recursively generated, to make a tree structure for determining a final division condition and a final virtual record group. - View Dependent Claims (12, 13, 14, 15)
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Specification