Phonetic distance calculation method for similarity comparison between phonetic transcriptions of foreign words
Patent 6581034 Issued on June 17, 2003. Estimated Expiration Date: 
January 17, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 17, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesElectronic spelling machine having ordered candidate words 6256630 InventorsAssigneeApplicationNo. 483860 filed on 01/17/2000US Classes:704/238, Distance704/10Dictionary building, modification, or prioritizationExaminersPrimary: Banks-Harold, Marsha D.Assistant: Harper, V. Paul Attorney, Agent or FirmInternational ClassesG10L 015/10G06F 017/21 Foreign Application Priority Data1999-10-01 KRAbstractA phonetic distance calculation method for similarity comparison between phonetic transcriptions of foreign words. A system manager defines character element transformation patterns occurrable between phonetic transcriptions derived from the same foreign language. A system generates new phonetic transcriptions according to the defined character element transformation patterns and assigns a demerit mark to each of the generated phonetic transcriptions according to a phonetic distance. A minimum phonetic distance between each of the generated phonetic transcriptions and a given phonetic transcription is calculated on the basis of a minimum edit distance calculation method. Any one of the generated phonetic transcriptions with a smallest one of the calculated minimum phonetic distances is determined to be most similar to the given phonetic transcription. Therefore, a document retrieval operation can accurately be performed in a document retrieval system and a document retrieval time can be reduced therein, resulting in a significant improvement in the performance of the document retrieval system.Other References
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