• 제목/요약/키워드: Kang Il-sun

검색결과 716건 처리시간 0.025초

Improved Acoustic Modeling Based on Selective Data-driven PMC

  • Kim, Woo-Il;Kang, Sun-Mee;Ko, Han-Seok
    • 음성과학
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    • 제9권1호
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    • pp.39-47
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    • 2002
  • This paper proposes an effective method to remedy the acoustic modeling problem inherent in the usual log-normal Parallel Model Composition intended for achieving robust speech recognition. In particular, the Gaussian kernels under the prescribed log-normal PMC cannot sufficiently express the corrupted speech distributions. The proposed scheme corrects this deficiency by judiciously selecting the 'fairly' corrupted component and by re-estimating it as a mixture of two distributions using data-driven PMC. As a result, some components become merged while equal number of components split. The determination for splitting or merging is achieved by means of measuring the similarity of the corrupted speech model to those of the clean model and the noise model. The experimental results indicate that the suggested algorithm is effective in representing the corrupted speech distributions and attains consistent improvement over various SNR and noise cases.

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울돌목 조류에너지 개발 현황과 전망 (Development of Uldolmok Tidal Current Energy)

  • 이광수;염기대;박진순;강석구;박우선;한상훈;정공일;박정우
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2005년도 춘계학술대회
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    • pp.512-515
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    • 2005
  • The Korean peninsula has a number of coastal sites where the rhythmic rising and lowering of water surface due to tides result in strong tidal current. The kinetic energy of these currents can be efficiently exploited by using tidal current turbines. The pilot tidal current power plant is to be constructed at the Uldolmok between Chindo and Haenam. Extensive coastal engineer ing research works have been carried out. This paper describes some observation results of field campaign, design of the supporting structure of a pilot plant of 1,000kW and a future tidal current power plant and so on.

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고속도로 소음 예측식을 통한 예측값과 실측값의 비교 (Comparison of Predicted and measurement value of Highway-traffic noise)

  • 손진희;장서일;정태량;강희만;장태순;이기정
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2006년도 추계학술대회논문집
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    • pp.30-33
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    • 2006
  • The purpose of this study is the improvement of the prediction model of highway noise. It includes the measurement and analysis of the highway noise for various types of roads and environments. The results of the measurement are compared with the noise levels predicted by highway noise prediction models including domestic and foreign ones and any recommendation to improve the accuracy of the models should be provided.

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비정질 실리콘 박막 트랜지스터(a-si:HTFT)의 온도의존특성의 수학적인 해석과 모델 (Mathematical Model of Temperature Dependent Characteristics of a-si:H Thin Film Transistor)

  • 이우선;윤성도;강용철;유병수;이상일
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1991년도 하계학술대회 논문집
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    • pp.158-161
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    • 1991
  • A new analytical expression for the temperature variation characteristics of hydrogenerated amorphous silicon (a-si:H) thin film transistors, between 223K and 433K, is presented and experimentally virified. The result show that the experimental transfer and output characteristics at several temperatures are easily modeled between $-50^{\circ}C\;and\;90^{\circ}C$. The model is based on three function obtained from the experimental data of $I_D$ versus $V_G$. Theoretical results comfirm the simple form of the model in terms of the device geometry. It was determined that as the temperature increaseed, the saturated drain current increased.

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Effect of capsaicin on melanoma growth and metastasis

  • Kim, Ok-Hee;Jun, Hye-Seung;Han, Beom-Seok;Song, Chi-Won;Lee, Chang-Ki;Park, Mi-Sun;Eom, Mi-Ok;Jee, Seung-Wan;Ryeom, Tai-Kyung;Kang, Ho-Il
    • 한국환경성돌연변이발암원학회:학술대회논문집
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    • 한국환경성돌연변이발암원학회 2002년도 Molecular and Cellular Response to Toxic Substances
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    • pp.143-143
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    • 2002
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슈메너(Schmenner)의 서비스 프로세스 메트릭스를 통한 서비스 만족도 측정에 관한 문헌연구(SERVQUAL과 SERVPERF 간의 비교를 중심으로) (A Literature Research on measuring service satisfaction with Schmenner's Service Process Matrix(Focused on Comparing Between Servqual and ServPerf))

  • 오선일;유병우;강경식
    • 대한안전경영과학회지
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    • 제8권6호
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    • pp.55-78
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    • 2006
  • In spite of the development of the service industry, research on measuring customers' service satisfaction is far insufficient. Therefore, ways to measure the service quality accurately need to be established due to the ambiguous types of service business. This research classifies the types of service business into service factory, service shop, mass service, professional service by using Schmenner's Service Process Matrix and conducts research on domestic literature that measured service satisfaction with Servqual and ServPerf. This study intends to suggest guidelines to measure customer satisfaction according to types of service business by researching ways to measure service satisfaction according to the types of service business and analysing the actual application methods based on a table that summarizes previous research on Servqual and Servperf.