• Journal of Electrical Engineering and information Science
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• v.1 no.1
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• pp.91-97
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• 1996

This paper proves by straightforward computation an interesting property of a recursive indexing: it preserves the entropy of a geometrically-distributes stationary memoryless source. This result is a pleasant surprise because the recursive indexing though one-to-one, is a symbol-to-string mapping and the entropy is measured in terms of the source symbols. This preservation of the entropy implies that the minimum average number of bits needed to represent a geometric memoryless source by the recursive indexing followed by a good binary encoder of a finite imput alphabet remains the same as that by a good encoder of an infinite input alphabet. Therefore, the recursive indexing theoretically keeps coding optimality intact. For this reason recursive indexing can provide an interface for a binary code with a finite code book that performs reasonably well for a source with an infinite alphabet.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2003.09a
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• pp.315-317
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• 2003

Neural oscillator is applied in oscillatory systems (Analysis of image information, Voice recognition. Etc...). If we apply established EBPA(Error back Propagation Algorithm) to oscillatory system, we are difficult to presume complicated input's patterns. Therefore, it requires more data at training, and approximation of convergent speed is difficult. In this paper, I studied the neural oscillator as synchronized states with appropriate phase relation between neurons and recognized the Korean alphabet using Neural Oscillator Phase model Synchronization.

• Proceedings of the KIEE Conference
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• 1987.07b
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• pp.1445-1448
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• 1987

The phase-only filter (POF) to the classical matched filter is compared for the criteria of discrimination, correlation peak, and optical efficiency in Korean alphabet. In addition, logarithmically scaled POF is presented to improve the recognition efficiency and this shows the superior performances in English alpanumeric characters to Korean.

• Speech Sciences
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• v.10 no.4
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• pp.23-40
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• 2003

This paper examines transcription of sounds from a phonological perspective. It has found that most of transcriptions have been done on a segmental basis alone, without consideration of the whole phonological systems and levels, and without a full understanding of the nature of the linguistic and phonetic alphabets. In a word, sound transcriptions have not been done on the basis of the phonology of the language and the alphabet. This study shows a phonological model for transcribing foreign and native sounds, suggesting ways of improving some of the current transcription systems such as the Hangeul transcription of loan words and the romanization of Hangeul, as well as the phonetic transcription of English and other foreign languages.

• KSCI Review
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• v.2 no.1
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• pp.1-12
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• 1995

Recently, graphics by graphic terminal widely used in various fields. But, many graphic software package in our country, though has been designed in other countries and necessarily required the use of Korean alphabet in various fields, not followed the requirements. So, this research analyzed the structures of the Korean alphabet, designed the fonts on the use of Korean, developed software module on the use of Korean using the modules of Tektronix Graphic Software module(PLOT-10)and extended the already used graphic software package.

• MALSORI
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• no.21_24
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• pp.123-143
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• 1992

• Convergence Security Journal
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• v.15 no.7
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• pp.75-84
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• 2015

In an "NTFS Index Record Data Hiding" method messages are hidden by using file names. Windows NTFS file naming convention has some forbidden ASCII characters for a file name. When inputting Hangul with the Roman alphabet, if the forbidden characters for the file name and binary data are used, the codes are convert to a designated unicode point to avoid a file creation error due to unsuitable characters. In this paper, the problem of a file creation error due to non-admittable characters for the file name is fixed, which is used in the index record data hiding method. Using Hangul with Roman alphabet the characters cause a file creation error are converted to an arbitrary unicode point except Hangul and Roman alphabet area. When it comes to binary data, all 256 codes are converted to designated unicode area except an extended unicode(surrogate pairs) and ASCII code area. The results of the two cases, i.e. the Hangul with Roman alphabet case and the binary case, show the applicability of the proposed method.

• Journal of Information Management
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• v.43 no.2
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• pp.199-222
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• 2012

Due to the increase of international business and activities, Koreans nowadays have higher needs to present their personal identity to the foreigners. In this process, the first requirement is to exchange personal names with foreigners. Therefore, the phonetic translation of Korean names into Roman alphabetic notation is frequently required, in order to deliver Korean personal names to the people who do not understand Korean alphabet. However, some confusions have been witnessed in the way of transforming Korean names into Roman (English) alphabet notation, due to the fact that there are many different ways to put Korean pronunciation into Roman (English) alphabet. This study examines different formats of Romanization of Korean personal names to find and suggest an optimal one. It first examines structures of and differences between Korean and Western personal names and usage patterns, reviews the issues surrounding Romanization of Korean personal names, and patternizes diverse Romanization formats currently used. Based on these examinations and consequent findings, I would like to suggest a format for the Romanization of Korean personal names which is considered to be the best.

• MALSORI
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• no.31_32
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• pp.51-82
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• 1996

The purpose of this paper is to gather pairs of heteronyms in Modem Korean and to propose that all of them should be differentiated in both the Hanngul orthography and Romanization as well as in the IPA transcription. More than a quarter of the whole Korean vocabulary consists of words with a long vowel and the number of minimal pairs distinguished only by the chroneme reaches nearly ten thousand (ie. twenty thousand words). It is suggested here that the letter s in Hanngul and the letter 'h' in the Roman alphabet be used to represent the long vowel. Another factor which brings forth lots of heteronyms in Korean is the lacking of enough indication as to non-automatic reinforcement in the initial consonant o( a word (or a morpheme) when following another within a phrase (or a word). It is proposed here that the non-automatincally rienforced word-initial consonant should be written with the letter h (like ㅺ, ㅼ, ㅽ, ㅾ) and an apostrophe (like 물'새 or 밭'이랑, 물'약) in Hanngul, and with the letter c and an apostrophe (like c'g-, c'd-, c'b-, c'j- ) in the Roman alphabet The morpheme-initial reinforced consonant within a word is written with the letters k, 1, p and cz for ㅺ, ㅼ, ㅽ, and ㅾ respectively. The contrasted pronunciations of pairs of heteronyms beginning with ㅁ/m sound are transcribed here for exemplification in the IPA, Roman alphabet and Hanngul.

• Journal of the Korean Society of Physical Medicine
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• v.10 no.1
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• pp.23-35
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• 2015

PURPOSE: People with physical disabilities such as cerebral palsy usually experience obstacles when interacting with computer through conventional keyboard because of their motor disabilities. The purpose of this study is empirically compare of text entry(alphabet and word) speed and accuracy using the three different keyboard type on four students(male 2 and female 2) with cerebral palsy. METHODS: This research design used a replicated single-case experimental approach to compare the individual performance. An alternating treatments design was used to examine the effectiveness of standard QWERTY keyboard and alternative keyboard(mini and big keyboard) on computer access for students with cerebral palsy. To avoid changes in posture that influence a keyboard character entry training and evaluation was carried out using his sitting in a wheelchair. Compass software program used in this study as an assessment tool to measure speed and accuracy when performance of text entry(alphabet and word). This was repeated until the stable status of reaction time. RESULTS: As a result, the alternative keyboard seems to be the most effective device for students with cerebral palsy to perform text entry. But various factors such as peculiarity of motor disabilities, experience and preferences of the user are heavily related. CONCLUSION: Thus, we must perform the objective and systematic assessment for computer access and if sustained training is accomplished, it could to improve speed and accuracy of text entry(alphabet and word).