This paper presents a practical method for a global structure analyzing Mgorithm of Japanese long sentences with lexical information, a method which we call Lexical Discourse Grammar (LDG). This method assumes that .Japanese function words, such as conjunctive particles (postpositions) located at the end of each clause, have modality and suggest global structures of Japanese long sentences in cooperation with modality within predicates or auxiliary verbs. LDG classifies the encapsulating powers of function words into six levels, and modality in predicates into four types. LDG presumes tile inter-clausal dependency within Japanese sentences prior to syntactic and semantic analyses, by utilizing the differences of the encapsulating powers each Japanese function word has, and by utilizing modification preference between function words and predicates that reflects consistency of modality in them. In order to confirm the encapsulation power of Japanese function words, we analyzed the speech utterances of a male announcer and found the correlation between a particle's encapsulating power and the pause length inserted after the clause with a conjunctive particle.
Degree words in natural lauguage, such as 'often' ~md %ometinies,' do not ha.ve (ieln)t,~tions in the reid world. This causes some interesting clmracteristics tor degree words. For exami)h; ~ the correspondence between the. English word 'often' :rod the intuitively corresponding aa>nese word is not ebvhms. This paper proposes a conceptual representat;ion to describe a wide range of linguistic phenomelul, which are rehtted to degree concepts in natural language.
We present an interactive translation method to support non-professional users to write an original document.The method, combining dictionary lookup function and user-guided stepwise interactive machine translation, allows the user to obtain clear result with an easy operation. We implemented the method as an English writing support facility that serves as a translation support front-end to an arbitrary application.
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