• The Journal of the Acoustical Society of Korea
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• v.5 no.2
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• pp.3-12
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• 1986

본 논문은 불특정 화자의 음성을 인식시키기 위하여 한국어 150 숫자음에 대하여 10개의 표준 패턴을 설정하는데 목적을 두고 연구하였다. 남성 화자 3인이 각 숫자음을 5번씩 반복 발음한 150숫자 음을 집단화 하여 표준 패턴을 설정하였다. 특징 피라미터는 포르만트 주파수를 이용하였고 유크리드 거리 측정법을 유사도 비교에 사용하였다. 실험 결과는 85.3%의 인식율을 얻었다.

• The KIPS Transactions:PartB
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• v.9B no.6
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• pp.827-834
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• 2002

In this paper, we proposed the formation of Korean-Roman alphabet notation conversion table for the generation of Korean-Roman alphabet notation that also meets revised Roman alphabet notation. Introduced a mathematical analyzing method of the natural language which used a petrinet model so that a base of Roman alphabet notation analyzed standard pronunciation and Roman alphabet notation to work mathematically. It display the practical example through a petrinet modeling of a plan and Roman alphabet notation to create a Korean Roman alphabet notation conversion table with the method of the analysis that used a petrinet model, and present a mathematical modeling plan and application method of Korean. We developed application program based on window in order to verify a created Korean-Roman alphabet notation conversion table, and compared the result of an application program with Roman alphabet notation of an Roman alphabet notation example dictionary.

• KIPS Transactions on Software and Data Engineering
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• v.1 no.2
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• pp.91-102
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• 2012

Computer aided language learning has become popular. But the level of automation of constructing a Korean learning assistant system is not so high because a practical language learning system needs large scale knowledge resources, which is very hard to acquire. In this paper, we propose a Korean learning assistant system that utilizes easily obtainable knowledge resources like a corpus, web documents and a lexicon. Our system has three modules - problem solving, pronunciation marker and writing assistant. Automatic problem generator uses a corpus and a lexicon to make problems with one correct answer and three distracters, then verifies their suitability by utilizing frequency information from web documents. We analyze pronunciation rules for a pronunciation marker and recommend appropriate words and sentences in real-time by using data extracted from a corpus. In experiment, we evaluate 400 automatically generated problems, which show 89.9% problem suitability and 64.9% example suitability.

• The Journal of the Acoustical Society of Korea
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• v.21 no.7
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• pp.656-664
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• 2002

We present a statistical analysis of Korean phonological variations using a Grapheme-to-Phoneme (GPT) system. The GTP system used for experiments generates pronunciation variants by applying rules modeling obligatory and optional phonemic changes and allophonic changes. These rules are derived form morphophonological analysis and government standard pronunciation rules. The GTP system is optimized for continuous speech recognition by generating phonetic transcriptions for training and constructing a pronunciation dictionary for recognition. In this paper, we describe Korean phonological variations by analyzing the statistics of phonemic change rule applications for the 60,000 sentences in the Samsung PBS Speech DB. Our results show that the most frequently happening obligatory phonemic variations are in the order of liaison, tensification, aspirationalization, and nasalization of obstruent, and that the most frequently happening optional phonemic variations are in the order of initial consonant h-deletion, insertion of final consonant with the same place of articulation as the next consonants, and deletion of final consonant with the same place of articulation as the next consonant's, These statistics can be used for improving the performance of speech recognition systems.

• MALSORI
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• no.50
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• pp.23-39
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• 2004

Current 'Pronunciation Methods of Standard Korean(PMSK)' has several problems. Some of those are from conflicts with linguistic reality, and the rest are from their internal inconsistencies. So, we feel that it should be revised as soon as possible. But it seems that the revision is not the best way, because linguistic change will make us revise it continually. The only way to establish its reasonable alternative is that we should update our descriptive dictionary whenever we need to.

• Annual Conference on Human and Language Technology
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• 2001.10d
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• pp.193-198
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• 2001

본 논문에서는 개정된 국어의 로마자 표기법에 근거한 로마자 표기 변환기를 생성하기 위하여 한글-로마자 표기 변환시스템을 설계하였다. 한글-로마자 표기의 규칙변환을 위하여 로마자 표기법중 표기의 변환에 관련된 항과 그렇지 않은 항으로 분리하여 규칙 변환을 위한 로마자 표기법을 정리하였으며, 로마자 표기법의 근간이 되는 표준 발음법을 페트리넷으로 모델링 후 분석하여 표기-음가 변환표를 생성하고, 표기-음가 변환표에서 로마자 표기법에 해당하지 않는 부분을 제거하여 한글 - 로마자 표기 변환표를 생성하고 이를 바탕으로 한글-로마자 변환 시스템을 구현하였다.

• Journal of the Korea Computer Industry Society
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• v.3 no.12
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• pp.1679-1690
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• 2002

This paper, describe about a generation of a syllable restoration regulation for a post processing of a speech recognition and a decrease of a restoration candidate. It created a syllable restoration regulation to create a restoration candidate pronounced with phonetic value recognized through a post processing of the formula system that was a tone to recognize syllable unit phonetic value for a performance enhancement of a dialogue serial speech recognition. Also, I presented a plan to remove a regulation to create unused notation from a real life in a restoration regulation with a plan to reduce number candidate of a restoration meeting. A design implemented a restoration candidate set generator in order a syllable restoration regulation display that it created a proper restoration candidate set. The proper notation meeting that as a result of having proved about a standard pronunciation example and a word extracted from a pronunciation dictionary at random, the notation that an utterance was former was included in proved with what a generation became.

• Annual Conference on Human and Language Technology
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• 2009.10a
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• pp.266-270
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• 2009

IT 관련 산업의 발전에 의한 저변의 확대로 장애우들의 IT 사용 수요가 늘고 있다. 본 논문에서는 IT분야에서 가장 기초적으로 활용되는 E-Mail을 시각 장애우가 활용 하는 데에 불편함이 없도록 하는 이메일 매니저 개발에 관련된 기법에 대해 논하고자 한다. TTS(Text-To Speech : 문자 텍스트를 음성으로 전환하여 들려줌)와 음성키보드(키보드 입력 시 입력한 문자를 음성으로 알려줌) 기능으로 시각 장애우가 이메일을 사용함에 있어 불편함을 느끼지 않도록 하였으며 본 시스템의 TTS 알고리즘은 국어 표준발음법을 참고로 하여 자바로 구현 하였다.

• Proceedings of the IEEK Conference
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• 2003.07d
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• pp.1363-1366
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• 2003

This paper introduces computerized version of Hangout(Korean Language) Standard Pronunciation Rule that can be used in Korean processing systems such as Korean voice synthesis system and Korean voice recognition system. For this purpose, we build Petri net models for each items of the Standard Pronunciation Rule, and then integrate them into the vocal sound conversion table. The reversion of Hangul Standard Pronunciation Rule regulates the way of matching vocal sounds into grammatically correct written characters. This paper presents not only the vocal sound conversion table but also character conversion table obtained by reversely converting the vocal sound conversion table. Making use of these tables, we have implemented a Hangeul character into a vocal sound system and a Korean vocal sound into character conversion system, and tested them with various data sets reflecting all the items of the Standard Pronunciation Rule to verify the soundness and completeness of our tables. The test results shows that the tables improves the process speed in addition to the soundness and completeness.

• Proceedings of the Korean Information Science Society Conference
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• 2001.04b
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• pp.376-378
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• 2001

본 논문은 새로 개정된 국어의 로마자 표기법(2000.7.7. 고시)에 따른 로마자 자동 변한 시스템의 구조와 변환 알고리즘을 제시한다. 특히 새 로마자 표기에 따른 규칙을 반영하여 사용자가 쉽고 편리하게 사용할 수 있도록 인명, 고유명사, 행정구역, 일반, 학술응용의 5개 항목으로 나누어 변환할 수 있게 했다. 또한 로마자표기에 적용한 표준 한글 음운변동 규칙과 로마자 표기의 원칙에 따른 5가지 변환 규칙을 도움말로 보여준다. 그리고 로마자 표기 원칙에 따라 발음상 혼동의 우려가 있는 부호의 규칙성을 조사하여 로마자 자동 변한 시스템에 적용함으로써 새 로마자 표기에서 발생할 수 있는 혼동을 제거하여 로마자 변환 시스템의 정확성을 높였다.