• 제목/요약/키워드: adapted process

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Out-Of-Domain Detection Using Hierarchical Dirichlet Process

  • Jeong, Young-Seob
    • 한국컴퓨터정보학회논문지
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    • 제23권1호
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    • pp.17-24
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    • 2018
  • With improvement of speech recognition and natural language processing, dialog systems are recently adapted to various service domains. It became possible to get desirable services by conversation through the dialog system, but it is still necessary to improve separate modules, such as domain detection, intention detection, named entity recognition, and out-of-domain detection, in order to achieve stable service offer. When it misclassifies an in-domain sentence of conversation as out-of-domain, it will result in poor customer satisfaction and finally lost business. As there have been relatively small number of studies related to the out-of-domain detection, in this paper, we introduce a new method using a hierarchical Dirichlet process and demonstrate the effectiveness of it by experimental results on Korean dataset.

갈조류 미역(Undaria pinnatifida)의 분리당화발효와 다양한 효모를 이용한 바이오에탄올의 생산 (Bioethanol Production from Seaweed Undaria pinnatifida Using Various Yeasts by Separate Hydrolysis and Fermentation (SHF))

  • 웬트룽 하우;라채훈;박미라;정귀택;김성구
    • 한국미생물·생명공학회지
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    • 제44권4호
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    • pp.529-534
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    • 2016
  • 해조류 중 갈조류인 미역으로부터 분리당화발효(SHF)를 위한 전처리 및 효소당화를 검토하고, 기존의 분리당화발효(SHF)를 개선하기 위해 공배양발효(co-culture)를 수행하였다. 비순치 효모와 고농도 mannitol에 순치(adaptive evolution)한 효모를 이용한 공배양발효를 실시한 결과 발효 72시간에 12.2 g/l의 에탄올과 에탄올 수율($Y_{EtOH}$) 0.41을 나타내었다. 이러한 기존의 분리당화발효(SHF)를 개선한 공배양발효를 통해 에탄올 생산 수율이 0.23에서 0.41로 35.2% 증가하였으며, 에탄올 발효시간도 108시간에서 72시간으로 33.3% 감소하였다. 이러한 연구결과는 해양 바이오매스인 해조류로부터 바이오연료 생산과정에 있어 유용한 정보를 제공하는 것으로 판단된다.

역할-거동 모델링에 기반한 화학공정 이상 진단을 위한 이상-인과 그래프 모델의 합성 (Synthesis of the Fault-Causality Graph Model for Fault Diagnosis in Chemical Processes Based On Role-Behavior Modeling)

  • 이동언;어수영;윤인섭
    • 제어로봇시스템학회논문지
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    • 제10권5호
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    • pp.450-457
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    • 2004
  • In this research, the automatic synthesis of knowledge models is proposed. which are the basis of the methods using qualitative models adapted widely in fault diagnosis and hazard evaluation of chemical processes. To provide an easy and fast way to construct accurate causal model of the target process, the Role-Behavior modeling method is developed to represent the knowledge of modularized process units. In this modeling method, Fault-Behavior model and Structure-Role model present the relationship of the internal behaviors and faults in the process units and the relationship between process units respectively. Through the multiple modeling techniques, the knowledge is separated into what is independent of process and dependent on process to provide the extensibility and portability in model building, and possibility in the automatic synthesis. By taking advantage of the Role-Behavior Model, an algorithm is proposed to synthesize the plant-wide causal model, Fault-Causality Graph (FCG) from specific Fault-Behavior models of the each unit process, which are derived from generic Fault-Behavior models and Structure-Role model. To validate the proposed modeling method and algorithm, a system for building FCG model is developed on G2, an expert system development tool. Case study such as CSTR with recycle using the developed system showed that the proposed method and algorithm were remarkably effective in synthesizing the causal knowledge models for diagnosis of chemical processes.

역정규 손실함수를 이용한 공정능력지수에 관한 연구 (A Study on Process Capability Index using Reflected Normal Loss Function)

  • 정영배;문혜진
    • 품질경영학회지
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    • 제30권3호
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    • pp.66-78
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    • 2002
  • Process capability indices are being used as indicators for measurements of process capability for SPC of quality assurance system in industries. In view of the enhancement of customer satisfaction, process capability indices in which loss functions are used to deal with the economic loss In the processes deviated from the target, are in an adequate representation of the customer's perception of quality In this connection, the loss function has become increasingly important in quality assurance. Taguchi uses a modified form of the quadratic loss function to demonstrate the need to consider the proximity to the target while assessing its quality. But this traditional quadratic loss function is inadequate to assessing the quality and quality improvement since different processes have different sets of economic consequences on the manufacturing, Thereby, a flexible approach to the development of the loss function needs to be desired. In this paper, we introduce an easily understood loss function, based on reflection of probability density function of the normal distribution. That is, the Reflected Normal Loss function can be adapted to an asymmetric loss as well as to a symmetric loss around the target. We propose that, instead of the process variation, a new capability index, CpI using the Reflected Normal Loss Function that can accurately reflect the losses associated with the process and a new capability index CpI Is compared with the classical indices as $C_{p}$ , $C_{pk}$, $C_{pm}$ and $C_{pm}$ $^{+}$.>.+/./.

Development of $Binem^{(R)}$ Displays on Flexible Plastic Substrates

  • Barron, Cecile;Angele, Jacques;Bajic, Lorenzo;Dozov, Ivan;Leblanc, Francois;Perny, Sebastien;Specht, Jorg;Brill, Jochen
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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    • pp.289-292
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    • 2004
  • We have successfully fabricated $Binem^{(R)}$ displays on thin flexible plastic substrates. The fabrication is based on the standard $Binem^{(R)}$ process for glass which has been adapted to plastic with new materials and technologies. The first application is targeted to an embedded display for smart card products.

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Thermal Acclimative Changes in the Different Lipid Fractions Composition of Fat Body of Eri-Silkworm, Philosamia Ricini (Ward.)

  • Singh, G.B.;Singh, M.K.
    • International Journal of Industrial Entomology and Biomaterials
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    • 제4권1호
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    • pp.13-17
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    • 2002
  • Present communication deals with quantitative determination of total lipid, triglycerides, total free fatty acids, phospholipids and total cholesterol in the fat body tissue of the silkworm adapted to low and high temperatures. At the end of spinning process is characterized by a marked cellular reorganization of the different lipid fraction of the fat body irrespective of thermal acclimation. Accordingly, the per cent composition of triglycerides of the total lipid is increased accompanied by a corresponding decrease in free fatty acids, phospholipids and cholesterol.

평판인쇄에 있어서 모랫발 형성에 따른 인쇄적성 (I) (Printability according to Graining of Plate in the Lithography (I))

  • 손세모
    • 한국인쇄학회지
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    • 제12권1호
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    • pp.57-68
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    • 1994
  • In the last decade, digital image processing technics have been rapidly developed according to the advancement of electronic technique, and total scanner and DTP system were developed. Specially, there is need to retouch the color and image on the CRT. In this paper, we described a method to display surface color of printing on the CRT, and an algorithm to simulate the color reproduction by offset printing. The experimental results show that the described method and algorithm are useful and valid on the computer simulation of the multi-color printing adapted process ink characteristics.

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EEG파형의 실시간 적응적 감지에 관한 연구 (A study on the adaptive detection of EEG waveforms)

  • 심신호;장태규;양원영
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1993년도 한국자동제어학술회의논문집(국내학술편); Seoul National University, Seoul; 20-22 Oct. 1993
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    • pp.877-882
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    • 1993
  • An adaptive EEG waveform detection is presented. The method is based on a layered process model. The model allows the bilateral information exchange across the layers. The criteria for the waveform detection and epoch-wise classification can be adapted according to the higher layer context information embedded in a wider range of adjacent signals. The designed system is experimentally tested to show the adaptive operation of the waveform detection.

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역사의 문화환경계획에 관한 연구 (A Study of Cultural Environment Plan for Station)

  • 정행란;오인욱
    • 한국실내디자인학회:학술대회논문집
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    • 한국실내디자인학회 1999년도 춘계학술발표대회 논문집
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    • pp.145-148
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    • 1999
  • The contemporary society needs complex space for multiple function. Interior space plan should suggest the solution of the narrow site and process for multiple function through showing the examples of other functional spaces. The purpose of this study is choosing an express station which has wide site and cultural exchange function, while it is not used for specific function and then the waiting room of station adapted for cultural and multiple functional space.

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단계별 이미지 적층법을 통한 디자인 구체화 과정에 관한 연구 (Study on the Design Materializing Process through a Stage of the 'Image Layered Technique)

  • 황인희;박경진
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2008년도 춘계학술대회 논문집
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    • pp.892-899
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    • 2008
  • In this research, adapted was the 'Image Layered Technique(ILT)' to determine the character-line of the nose. Moreover, to derive the image of the front and side views of the nose, analyzed were the heads of animals and transportations. Presented was the pattern with the image to determine the volume with a front outline. Also, the image to be suggested to 'ILT' was applied to a front character design.

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