ADAPTABLE FRAMEWORK FOR ONTOLOGY-BASED INFORMATION EXTRACTION

• US 20140258304A1
• Filed: 03/11/2013
• Published: 09/11/2014
• Est. Priority Date: 03/11/2013
• Status: Abandoned Application

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Case, Martin, De, Soumen, Rajpathak, Dnyanesh, Sabanski, Gregory D.
• Application Number:
  US13/792,913
• Publication Number:
  US 20140258304A1
• Time in Patent Office: Days
• US Class Current: 707/740
• CPC Class Codes: G06F 16/904 Browsing; Visualisation therefor for navigating the web G06F16/954; browsing optimisation for the web G06F16/957

Abstract

A warranty database stores service repair verbatims. An ontology database that specifies relationships between service terms includes linking relationships between vehicle terminology and cluster categories. The ontology database is reconfigurable for allowing a user to add, delete, and modify contents within the ontology database. A verbatim extraction tool extracts service repair verbatims from the warranty database as function of user selected parameters and a user selected ontology. The user selected ontology is a subset of the ontology database. The service verbatims are segregated into a plurality of cluster categories as a function of the selected parameters and the user selected ontology. A report generating device selectively generated reports based on segregating service verbatims into a plurality of cluster categories. Each respective cluster category includes associated service repair verbatims that are selected as a function of the linking relationship of terms within the service verbatim and the user selected ontology.

Claims

1. A warranty detection system for service repairs of vehicles, the system comprising:

a warranty database for storing service repair verbatims, the service repair verbatims including information relating to an identified concern with the vehicle;

an ontology database that specifies relationships between service terms includes linking relationships between vehicle terminology and cluster categories, the ontology database being reconfigurable for allowing a user to add, delete, and modify contents within the ontology database;

a verbatim extraction tool for extracting service repair verbatims from the warranty database as function of user selected parameters and a user selected ontology, wherein the user selected ontology is a subset of the ontology database, wherein the service verbatims are segregated into a plurality of cluster categories as a function of the selected parameters and the user selected ontology; and

a report generating device for selectively generating reports based on segregating service verbatims into a plurality of cluster categories, the reports identifying an aggregate number of service verbatims associated with respective cluster categories, wherein each respective cluster category includes associated service repair verbatims that are selected as a function of the linking relationship of terms within the service verbatim and the user selected ontology.

2. The system of claim 1 wherein the wherein the ontology database as reconfigured by the user is a local ontology database, wherein the local ontology database is downloaded from a primary ontology database for allowing the user to revise and manage the local ontology database.

3. The system of claim 2 wherein the wherein the user selects an ontology subset from the ontology database, the ontology subset including a plurality of terms associated with a respective vehicle technology.

4. The system of claim 3 wherein the user selectively prunes terms from the selected ontology subset.

5. The method of claim 3 wherein the user merges a second ontology subset with the selected ontology subset for generating a merged ontology subset.

6. The system of claim 5 wherein duplicate terms are removed from the merged ontology subset.

7. The system of claim 1 wherein the plurality of cluster categories includes a no-match cluster category, wherein service verbatims not matching any of the clusters in the selected ontology subset are entered into the no-match cluster category.

8. The system of claim 1 further including an ontology wizard wherein a text phrase of a service verbatim in the no-match category is selected for generating a new cluster category or for mapping to an existing category.

9. The system of claim 8 wherein the ontology wizard autonomously generated the new cluster category based on frequently occurring text phrases and maps the text phrases to the new cluster category.

10. The system of claim 8 wherein the ontology wizard autonomously maps the text phrases to an existing cluster category based on frequently occurring text phrases substantially similar to existing text phrases within the existing cluster category.

11. The system of claim 8 wherein each service verbatim in the no-match cluster is analyzed for identifying text phrases substantially similar to text phrases associated with the added text phrases in the new cluster category or existing cluster category.

12. The system of claim 1 wherein the selected parameters includes labor codes.

13. A method of categorizing service verbatims in a vehicle service reporting system, the method comprising the steps of:

storing service repair verbatims in a warranty storage database that includes at least one memory storage device, the service repair verbatims including information relating to an identified concern with the vehicle;

generating an ontology database that specifies relationships between service terms that includes linking relationships between vehicle terminology and cluster categories, the ontology database being reconfigurable for allowing a user to add, delete, and modify contents within the ontology database;

extracting service repair verbatims from the warranty database as function of user selected parameters and a user selected ontology utilizing a verbatim extraction tool, wherein the user selected ontology is a subset of the ontology database, wherein the service verbatims are segregated into a plurality of cluster categories as a function of the selected parameters and the user selected ontology; and

selectively generating reports based on segregating service verbatims into a plurality of cluster categories using a report generating device, the reports identifying an aggregate number of service verbatims associated with respective cluster categories, wherein each respective cluster category includes associated service repair verbatims that are selected as a function of the linking relationship of terms within the service verbatim and the user selected ontology.

14. The system of claim 13 wherein the ontology database as reconfigured by the user is a local ontology database, wherein the local ontology database is downloadable from a primary ontology database for allowing the user to revise and manage the local ontology database.

15. The system of claim 14 wherein the wherein the user selects an ontology subset from the local ontology database, the ontology subset including a plurality of terms localized to a specific vehicle system.

18. The method of claim 13 further comprising the step of creating a no-match cluster category, wherein service verbatims not matching any of the plurality of clusters in the selected ontology subset are binned to the no-match cluster category.

19. The method of claim 18 wherein a text phrase from a service verbatim in the no-match category is selected for generating a new cluster category or for mapping to an existing category.

20. The method of claim 19 wherein the new cluster category is autonomously generated based on frequently occurring text phrases, and wherein the frequently occurring text phrases are mapped to the new cluster category.

21. The method of claim 18 wherein a text phrase in the no-match category that is substantially similar to an existing test phrase in an existing cluster category is mapped existing cluster category.

22. The method of claim 13 wherein labor codes are utilized as the user selected parameters.

23. The method of claim 13 wherein the user selected parameters include domain specific parameters.

24. The method of claim 13 wherein the user selected parameters include special case parameters.

16. The system of claim 16 wherein the user selectively prunes terms from the selected ontology subset, wherein pruning includes discarding unwanted ontology from the local ontology database.

17. The method of claim 16 wherein the user merges a second ontology subset with the selected ontology subset for generating a merged ontology subset, wherein one of the duplicate terms within the merged ontology subset is removed.