Predicting apparatus, predicting method, and computer product

• US 7,668,826 B2
• Filed: 06/06/2006
• Issued: 02/23/2010
• Est. Priority Date: 07/27/2005
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Watanabe, Masaru, Hanaoka, Hideki
• Primary Examiner(s): Cottingham; John R.
• Assistant Examiner(s): Uddin; Mohammed R
• Application Number:
  US11/447,145
• Publication Number:
  US 20070038587A1
• Time in Patent Office: 1,358 Days
• Field of Search: 707/6, 707/102, 707/3, 707/104
• US Class Current: 1/1
• CPC Class Codes: G06N 20/00 Machine learning
• CPC Class Codes: G06N 5/02 Knowledge representation; Symbolic representation
• CPC Class Codes: Y10S 707/941 Human sciences
• CPC Class Codes: Y10S 707/99936 Pattern matching access

Abstract

A structuring unit generates a combination pattern of the attribute values by combining an attribute value of the assessment target data with an attribute value indicating a unspecified value. A reconstructing unit searches data matching the combination pattern from the accumulation data, and generates subset data. An index setting unit sets an index indicating significance of relationship between the generated subset data with assessment data. An assessing unit selects subset data that becomes a basis of assessment, based on the set index, and performs an assessment on a prediction result based on the selected subset data.

Claims

1. A computer-readable recording medium storing instructions for predicting a result of assessment target data including a new combination of the attribute values, which when executed by a computer having at least one processor and at least one storage device, causes the computer to perform:

structuring by the processor by generating a combination pattern of the attribute values by combining an attribute value of the assessment target data with an attribute value indicating an unspecified value;

reconstructing by the processor by searching for data matching the combination pattern from accumulation data in the storage device in which a correlation between a combination of attribute values and a result of the combination is accumulated, and generating a plurality of subset data;

setting by the processor a risk assessment index for each of the plurality of subset data generated in the reconstructing, the risk assessment index indicating a significance of a relationship between each of the plurality of subset data and the assessment target data, in such manner that, when first subset data and second subset data are included in subset data in which a combination of attribute values is statistically valid, and when the first subset data is included in the second subset data, a value indicating that the first subset data has precedence over the second subset data is set as the risk assessment index;

predicting by the processor the result of assessment target data based on the accumulation data; and

assessing including selecting subset data that becomes a basis of assessment, based on the risk assessment index set by the processor, and performing by the processor, an assessment on a prediction result based on the selected subset data.

2. The computer-readable recording medium according to claim 1, wherein

the setting includes setting the index in such a manner that subset data having larger number of attribute values matching the assessment data has precedence over other subset data.

3. The computer-readable recording medium according to claim 2, wherein the assessing includes

preparing a plurality of methods for assessing the prediction result based on the subset data;

and

performing the assessment on the prediction result by changing the methods.

4. The computer-readable recording medium according to claim 1, wherein the assessing includes

a plurality of methods for assessing the prediction result based on the subset data;

and

performing the assessment on the prediction result by changing the methods.

5. The computer-readable recording medium according to claim 1, wherein the assessing includes

preparing a plurality of methods for assessing the prediction result based on the subset data;

and

performing the assessment on the prediction result by changing the methods.

6. The computer-readable recording medium according to claim 1, wherein the setting includes

a plurality of methods for determining a statistic validity of the combination;

and

the index by changing the methods.

7. The computer-readable recording medium according to claim 1, wherein

the instructions further cause the computer to perform:

simulating including repeatedly changing a parameter until a predetermined condition is satisfied.

8. The computer-readable recording medium according to claim 1, wherein the instructions further cause the computer to perform:

employing a user interface capable of displaying information used for each process.

9. An apparatus, having at least one Processor and at least one storage device, for predicting a result of assessment target data including a new combination of the attribute values, the apparatus comprising:

a structuring unit that generates by the processor a combination pattern of the attribute values by combining an attribute value of the assessment target data with an attribute value indicating a unspecified value;

a reconstructing unit that searches by the processor for data matching the combination pattern from accumulation data in which a correlation between a combination of attribute values and a result of the combination is accumulated, and generates a plurality of subset data;

an index setting unit that sets by the processor a risk assessment index for each of the plurality of subset data generated by the reconstructing unit, the risk assessment index indicating a significance of a relationship between each of the plurality of subset data and the assessment target data, in such manner that, when first subset data and second subset data are included in subset data in which a combination of attribute values is statistically valid, and when the first subset data is included in the second subset data, a value indicating that the first subset data has precedence over the second subset data is set as the risk assessment index;

a predicting unit that predicts by the processor the result of assessment target data based on the accumulation data; and

an assessing unit that selects subset data that becomes a basis of assessment, based on the risk assessment index set by the index setting unit, and performs an assessment on a prediction result based on the selected subset data.

10. A method of predicting a result of assessment target data including a new combination of the attribute values, using a computer having at least one processor and at least one storage device, the method comprising:

structuring including

combining by the processor an attribute value of the assessment target data with an attribute value indicating an unspecified value; and

generating by the processor a combination pattern of the attribute values;

reconstructing including

searching by the processor data matching the combination pattern from accumulation data in which a correlation between a combination of attribute values and a result of the combination is accumulated; and

generating by the processor a plurality of subset data;

setting by the processor a risk assessment index for each of the plurality of subset data generated in the reconstructing, the risk assessment index indicating a significance of a relationship between each of the plurality of subset data and the assessment target data, in such manner that, when first subset data and second subset data are included in subset data in which a combination of attribute values is statistically valid, and when the first subset data is included in the second subset data, a value indicating that the first subset data has precedence over the second subset data is set as the risk assessment index;

predicting by the processor the result of the assessment target data based on accumulation data; and

assessing including

selecting subset data that becomes a basis of assessment, based on the risk assessment index set by the processor; and

performing an assessment on a prediction result based on the selected subset data.