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How to Use Valency Patterns

Table 1 shows an example Japanese sentence of the speech input data.



Table 1: Input Sentence (Example)
「私は彼の高校を受験する.」
``Watashiwa kareno koukouwo jyukeNsuru.''
` I will take an entrance examination for his high school.'


We used the word bigram model to generate the 2-best output sentences (table 2).



Table 2: Examples of Output Sentences
 order  output sentence  
 1  「私からの高校と受験する.」 (UGS)  
    ``watashikarano koukouto jyukeN suru.'' (UGS)  
    `I take examination with a senior high school from me.'  
    (UGS)  
 2  「私は彼の高校を受験する.」  
    ``watashiha kareno koukouwo jyukeN suru.''  
    `I take an examination to his senior high school.'  


Table 3 shows the valency patterns for the Japanese verb 「受験する」('take an examination'). In this table, Japanese or English words in parentheses mean the semantic categories for the N's.



Table 3: The Valency Patterns for 「受験する」 (`take an examination')
1 $N1$( 人) [は/が] $N2$(362 組織) を 受験する」
  ` $N1$( human ) [ha/ga] $N2$(362 Organization ) take an examination '
2 $N1$( 人) [は/が] $N2$(1426 試験) を 受験する」
  ` $N1$( human) [ha/ga] $N2$(1426 Examination ) take an examination '
3 $N1$ ( 人) [は/が] 受験する」
  ` $N1$ ( human) [ha/ga]take an examination '


Because none of the valency patterns in Table 3 match the first candidate, it must be discarded as an ungrammatical sentence. Whereas, since one of the valency patterns in Table 3 matches the second candidate, it becomes the first candidate.


next up previous
Next: Experiment using Valency Patterns Up: Speech Recognition using Valency Previous: Word Dictionary
Jin'ichi Murakami 2005-08-25