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Designing A Syntax Based Retrieval System03

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Avelin Huo
Avelin Huo
TecnologiaEducação
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Designing a Syntax-Based Retrieval System for Supporting Language Learning Educational Technology & Society Nai-Lung Tsao1, Chin-Hwa Kuo2, David Wible1 and Tsung-Fu Hung2 Kaun-Hua Huo( 霍冠樺 ) 2009/09/29
Outline ,[object Object],[object Object],[object Object],[object Object]
Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Regular expression search engine ,[object Object]
Figure 1 : The illustrative figure of a typical regular expression search engine
Index construction ,[object Object],[object Object],[object Object],Index construction Query processing
Notations and definitions ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
Index construction algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],We use inverted indices as our index storage structure, which is easily accessed by RDBMS.
Index construction structure ,[object Object],[object Object]
Query processing ,[object Object],Index construction Query processing
Query processing algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Example 2 : V + problem
Query processing algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Syntax-based text retrieval system ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Tagged corpus Filter factor Evaluation Query Generator
Tagged corpus ,[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Filter factor ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
Evaluation The following shows ten query samples.
[object Object]
 
Query Generator
Examples ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conclusion and future works ,[object Object],[object Object],[object Object]

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Designing A Syntax Based Retrieval System03

  • 1. Designing a Syntax-Based Retrieval System for Supporting Language Learning Educational Technology & Society Nai-Lung Tsao1, Chin-Hwa Kuo2, David Wible1 and Tsung-Fu Hung2 Kaun-Hua Huo( 霍冠樺 ) 2009/09/29
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7. Figure 1 : The illustrative figure of a typical regular expression search engine
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19.
  • 20.
  • 21.
  • 22.
  • 23.
  • 24. Evaluation The following shows ten query samples.
  • 25.
  • 26.  
  • 28.
  • 29.