한국어 모음조화의 약화 현상에 대한 정보이론 기반 분석 = The diachronic declination of Korean vowel harmony from the perspective of Information Theory

다국어 초록 (Multilingual Abstract)

This study investigates the declination of vowel harmony in Korean from the 15th century to the 18th century. Between the 15th and the 18th century, restructuring of the vowel system resulting from vowel shift brought about diachronic declination of palatal vowel harmony between front and back vowels. Since the 15th century, vowel harmony in Korean has been in steady decline. Noting this, the present paper examines the frequencies of vowel harmony from the 15th to the 18th century. To do so, it analyzes a historical Korean corpus from the perspective of Information Theory, measuring the quantitative analysis index of vowel harmony by the information-theoretic notions of ‘positive logarithm’ and ‘mutual information.’ Mutual information (MI) between the vowels in autosegmental tiers leads to two findings about the declination of vowel harmony in Korean. Firstly, there were two sharp declines of vowel harmony in the historical Korean corpus. There was first a declination between the 15<SUP>th</SUP> and 16<SUP>th</SUP> centuries, and the second declination occurred between the 17<SUP>th</SUP> and 18<SUP>th</SUP> centuries. Secondly, the prohibition of non-harmonic vowels is more effective than the preference for harmonic vowels in Korean vowel harmony.

목차 (Table of Contents)

• 1. 머리말
• 2. 한국어의 모음체계와 모음조화
• 3. 상호정보량과 모음조화
• 4. 말뭉치의 가공과 상호정보량 측정
• 5. 분석 결과와 논의
• 6. 맺음말
• REFERENCES

참고문헌 (Reference)

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