Application and Extraction of Postal Addresses and Related Information
碩士 === 國立中央大學 === 資訊工程研究所 === 97 === Address Information is closely linked to people''s daily life. People often need to query addresses of related brick-and-mortar shopping malls、schools and organization. And using the service of map marking identified the real direction. But there are no...
| Main Authors: | , |
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2009
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| Online Access: | http://ndltd.ncl.edu.tw/handle/h86m35 |
| Summary: | 碩士 === 國立中央大學 === 資訊工程研究所 === 97 === Address Information is closely linked to people''s daily life. People often need to query addresses of related brick-and-mortar shopping malls、schools and organization. And using the service of map marking identified the real direction. But there are not all web pages providing addresses and facility of map marking. Therefore, designing a service of extracting English addresses automatically from web pages is the goal of our research. And the service combines the facility of map marking and marks the extracted addresses and the related information on the map. The service provides users in a convenient and easy way to using the information service of map marking. Our system is divided into two steps: the first step is using Conditional Random fields to train the model of address extraction. Page we input enters the testing process of model of address extraction and outputs the segment of address. The second step is using extracted addresses as landmarks to extract related information and finding out the correct boundary of address blocks. In terms of the result of experiment, the F-measure of extraction by Conditional Random field is up to 0.913. And we also propose the method of adjustment to revise the incorrect boundary. The accuracy after adjusting is from 0.8506 to 0.8689.
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