• Journal of Internet Computing and Services
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• v.10 no.3
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• pp.9-15
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• 2009

It takes quite amount of time to study a board game because there are many game characters and different stages are exist for board games. Also, the opponent is not just a single character that means it is not one on one game, but group vs. group. That is why strategy is needed, and therefore applying optimum learning is a must. This paper used reinforcement learning algorithm for board characters to learn, and so they can move intelligently. If there were equal result that both are considered to be best ones during the course of learning stage, Heuristic which utilizes learning of problem area of Jul-Gonu was used to improve the speed of learning. To compare a normal character to an improved one, a board game was created, and then they fought against each other. As a result, improved character's ability was far more improved on learning speed.

• The Journal of the Korea institute of electronic communication sciences
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• v.12 no.2
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• pp.391-400
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• 2017

The purpose of this study was investigated the effect of orofacial training video program using smart device on oral cavity structure and function, diadochokinetic rate in acute stroke patients with dysarthria. Present study participated in fourteen acute stroke patients with dysarthria. All subjects assigned that randomized each seven patients in experimental and control group. Subjects of two groups received conventional rehabilitation therapy for 4 weeks. Experimental group performed additionally that orofacial training video program using smart device, supervised under caregivers, during 30 min/day. The outcome measures were the oral cavity structure and function of subscale for KOMSE(: Korean Oro-motor Mechanism Screening Examination), AMR(: Alternating Motion Rate), SMR(: Sequential Motion Rate). In results, Both group showed significant improvements after intervention in all assessments(p<.05). In comparison of change between two groups, experimental group showed significant improvements than control group in oral cavity function, /p ə/ and /tə/ of AMR(p<.05). We suggested that orofacial training video program using smart device expected to positive effects the improvements of oral cavity and articulator function in acute stroke patients with dysarthria.

• Phonetics and Speech Sciences
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• v.13 no.2
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• pp.57-66
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• 2021

This study focuses on the issue of automatic severity classification of dysarthric speakers based on speech intelligibility. Speech intelligibility is a complex measure that is affected by the features of multiple speech dimensions. However, most previous studies are restricted to using features from a single speech dimension. To effectively capture the characteristics of the speech disorder, we extracted features of multiple speech dimensions: voice quality, prosody, and pronunciation. Voice quality consists of jitter, shimmer, Harmonic to Noise Ratio (HNR), number of voice breaks, and degree of voice breaks. Prosody includes speech rate (total duration, speech duration, speaking rate, articulation rate), pitch (F0 mean/std/min/max/med/25quartile/75 quartile), and rhythm (%V, deltas, Varcos, rPVIs, nPVIs). Pronunciation contains Percentage of Correct Phonemes (Percentage of Correct Consonants/Vowels/Total phonemes) and degree of vowel distortion (Vowel Space Area, Formant Centralized Ratio, Vowel Articulatory Index, F2-Ratio). Experiments were conducted using various feature combinations. The experimental results indicate that using features from all three speech dimensions gives the best result, with a 80.15 F1-score, compared to using features from just one or two speech dimensions. The result implies voice quality, prosody, and pronunciation features should all be considered in automatic severity classification of dysarthria.

• The Journal of the Acoustical Society of Korea
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• v.14 no.1
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• pp.56-64
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• 1995

In this paper we extracted control rules of synthetical pauses and syllable durations depending on pronunciation speed in Korean speech from the spoken sentences recorded by 18 professional announcers. Pause rules were divided into three categories : pause between sentences(PBS), pause between clauses(PBC) and pause between intonational phrases(PBI). From the analysis results it is found that comparing the slowly spoken sentence with the fast spoken sentence the duration difference between them is due to the synthetical pause increments, expecially, of PBS and PBC. In addition, it is also found that the increment ratio of the mean syllable duration Is low. On the other hand, PBI was not pronounced in the fast spoken sentences. PBI was pronounced at the pronunciation speed(PS) over some PS.

• 프린팅코리아
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• s.3
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• pp.174-177
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• 2002

'발 없는 말이 천리를 간다.' 파발이나 봉화가 활성화되기 이전에 입 소문을 경계하기 위해 생겨난 이 말은 이제 구식이 된지 오래다. 인터넷을 통해서 천리도 마다하고 지구를 한바퀴 돌고도 남을 만큼 말이나 문서의 전달 속도가 빠르고 넓어졌기 때문이다. 하지만 인터넷이 활성화되기 전인 1980년대 이전만 해도 천리를 가는 말의 구실을 톡톡히 해 낸 것은 다름 아닌 편지와 우표. 인터넷을 통한 e-mail이 활성화 됐다지만 부끄러운 님한테 말못할 사연을 전하기엔 편지가 제격이다. 지난 8월2일부터 11일까지 코엑스에서 열린 "필라코리아세계우표전시회"에는 세계 각 국가의 문화와 정성이 담긴 우표를 구경하기 위한 인파로 물셀 틈이 없었다. 단순한 소식 전달을 넘어 열렬 취집가들까지 생겨난 우표의 탄생과 비화를 모아봤다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.01a
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• pp.59-60
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• 2012

자유 낙하하는 물체가 받는 힘은 중력 뿐이다. 우리는 중력만을 받아서 운동하는 것을 자유 낙하 운동이라고 하고 자유 낙하하는 물체를 자유낙체라 한다. 다시 말해서, 물체의 초기 운동 상태와 무관하게 중력의 영향으로만 자유롭게 낙하하는 물체를 말하는 것이다. 본 논문에서는 공기의 저항을 무시하고, 수직방향으로 짧은 거리의 범위 내에서 고도에 의한 자유낙하 가속도의 변화가 없다는 가정을 하고, 자동차가 수직 상 방향으로 출발하여 도약하고 최고점에 도달하는 시간, 최대높이, 자동차가 출발 위치로 돌아오는 시간과 자동차의 속도, 자동차가 땅에 떨어질 때의 시간 및 속도에 대해 알 수 있다.

• Proceedings of the KSLP Conference
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• 1995.11a
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• pp.103-110
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• 1995

디지털이라는 말은 우리 일상 생활에서 흔히 듣는다. 시계, 체온계, 체중계, 자동차의 속도계, 혈압계 등 요즘에는 디지털 표시 제품이 아주 많아 졌다 디지털이라는 말을 영어사전에서 찾아보면 '손가락의', '계수형의' 등의 뜻으로 쓰여져 있다. 그리고 측정분야에서 디지털이라는 말은 '이산적', '불연속적' 이라는 뜻이 있으며, 이것은 값이 드문드문 있다는 의미이며, 디지털의 특징으로 미리 정해진 자리수로만 값을 표현할 수 있는 것을 뜻한다. 디지털에 대해 반대 의미를 갖는 것이 아날로그이다. (중략)

• ICROS
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• v.3 no.3
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• pp.36-48
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• 1997

본 원고에서는 극 좌표계를 기준으로 하여 추정기를 구성함으로써 속도 검출기가 없는 유도전동기의 회전자 자속 및 회전 속도를 정확히 추정해 내고, 다시 이 정보를 이용하여 유도전동기를 고성능으로 제어할 수 있는 드라이브 시스템의 구현 과정과 이를 이용한 간단한 실험 결과에 대하여 소개하였다. 본 원고에서 제시한 몇가지의 실험 결과들은 소프트웨어의 알고리즘에 의하여 전동기의 회전축에 부착된 속도 검출기는 충분히 대치될 수 있음을 말해주는 것이므로, 속도 검출기가 가격과 내구성 등에서 실제적으로 산업 현장에 적용하기에 많은 문제점을 안고 있다는 점을 감안할 때 그 유용성을 입증하는 것이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.135-136
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• 2011

자유낙체란 자유로이 낙하하는 물체를 말한다. 즉 물체의 초기 운동 상태와 무관하게 중력의 영향으로만 자유롭게 낙하하는 물체를 말하는 것이다. 본 논문에서는 공기의 저항을 무시하고, 수직방향으로 짧은 거리의 범위 내에서 고도에 의한 자유낙하 가속도의 변화가 없다고 가정한다. 이러한 가정 하에, 자동차가 수직 상 방향으로 출발하여 최고점에 도달하는 시간, 최대높이, 자동차가 출발 위치로 돌아오는 시간과 자동차의 속도, 자동차가 땅에 떨어질 때의 시간 및 속도에 대하여 알아본다.

• Therapeutic Science for Rehabilitation
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• v.9 no.1
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• pp.91-99
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• 2020

Objective : The purpose of this study was to investigate the effects of the IOPI articulator strength training program on articulator(tongue and lip) muscle strength, numbers of /l, s, ʨ/ articulation accuracy, articulatory numbers, articulation regularity and accuracy in the alternate motion rates, and sequential motion rate changes in patients with spastic dysarthria. Methods : Three cases of patients with spastic dysarthria living in Jeju, Korea, were included in this study. A single subject design was selected to study changes in articulator(tongue and lip) muscle strength, numbers of /ㄹ, ㅅ, ㅈ/ articulation accuracy, articulatory numbers, articulation regularity and accuracy in the alternate motion rates and sequential motion rates. Results : After the articulator strength training program was conducted on patients with spastic dysarthria, there were positive changes in articulator(tongue and lip) muscle strength, numbers of /ㄹ, ㅅ, ㅈ/ articulation accuracy, articulatory numbers, articulation regularity and accuracy on the alternate motion rates and sequential motion rates. Conclusion : Our findings suggest that IOPI articulator strength training program could be very useful for the most representative childeren with cerebral palsy if conducted in various subtypes of dysarthric patients and linked with articulatory function training with IOPI at home.