• 제목/요약/키워드: Focusing Technique

검색결과 661건 처리시간 0.026초

Support Vector Machine for Linear Regression

  • Hwang, Changha;Seok, Kyungha
    • Communications for Statistical Applications and Methods
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    • 제6권2호
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    • pp.337-344
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    • 1999
  • Support vector machine(SVM) is a new and very promising regression and classification technique developed by Vapnik and his group at AT&T Bell laboratories. This article provides a brief overview of SVM focusing on linear regression. We explain from statistical point of view why SVM might be attractive and how this could be compared with other linear regression techniques. Furthermore. we explain model selection based on VC-theory.

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Analysis of Whole Transcriptome Sequencing Data: Workflow and Software

  • Yang, In Seok;Kim, Sangwoo
    • Genomics & Informatics
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    • 제13권4호
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    • pp.119-125
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    • 2015
  • RNA is a polymeric molecule implicated in various biological processes, such as the coding, decoding, regulation, and expression of genes. Numerous studies have examined RNA features using whole transcriptome sequencing (RNA-seq) approaches. RNA-seq is a powerful technique for characterizing and quantifying the transcriptome and accelerates the development of bioinformatics software. In this review, we introduce routine RNA-seq workflow together with related software, focusing particularly on transcriptome reconstruction and expression quantification.

Three-dimensional display based on integral imaging

  • Lee, Byoung-Ho;Park, Jae-Hyeung;Kim, Yun-Hee;Choi, Hee-Jin
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.I
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    • pp.36-40
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    • 2005
  • Integral imaging is an attractive three-dimensional display technique providing full-parallax full-color three-dimensional images in real-time without any viewing aids. In this paper, we present the recent progress on the three-dimensional display based on integral imaging focusing on its depth and viewing angle enhancement and the three-dimension/twodimension convertibility.

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다중펄스 주파수분해 광게이팅을 이용한 10 펨토초 미만의 레이저 펄스의 시간특성 측정 (Temporal characterization of sub-10-fs laser pulses using multi-shot frequency-resolved optical gating technique)

  • 이용수;홍경한;성재희;남창희
    • 한국광학회:학술대회논문집
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    • 한국광학회 2003년도 제14회 정기총회 및 03년 동계학술발표회
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    • pp.40-41
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    • 2003
  • (self-focusing)을 이용한 커렌즈 모드록킹(Kerr-lens mode-locking; KLM) 방법을 이용하면 간단한 구조를 갖는 공진기로 100 펨토초(femto=10-13) 미만의 레이저 펄스를 생성할 수 있다. KLM 티타늄사파이어(Ti:sapphire) 레이저의 발달로 10 펨토초 영역의 레이저 펄스를 간단하게 생성할 수 있게 되었으며 특히, 넓은 스펙트럼 폭을 가지는 처프거울(chirped mirror)의 사용과 정확한 분산의 보정을 통한 5 펨토초(800 nm 파장의 두 주기에 해당) 영역의 레이저 펄스 생성도 보고되고 있다.

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Image Blurring Estimation and Calibration with a Joint Transform Correlator

  • Jeong, Man Ho
    • Journal of the Optical Society of Korea
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    • 제18권5호
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    • pp.472-476
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    • 2014
  • The Joint Transform Correlator (JTC) has been the most suitable technique for real time optical pattern recognition and target tracking applications. This paper proposes a new application of the JTC system for an analysis of the blurring effect of the optical images caused by a defocused lens. We present the relation between the correlation peak, optical transfer function (OTF), and the amount of blurring caused by focusing error. Moreover, we show a possibility of calibrating the blurred image by simply measuring the correlation peak.

Analyzing XR(eXtended Reality) Trends in South Korea: Opportunities and Challenges

  • Sukchang Lee
    • International Journal of Advanced Culture Technology
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    • 제12권2호
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    • pp.221-226
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    • 2024
  • This study used text mining, a big data analysis technique, to explore XR trends in South Korea. For this research, I utilized a big data platform called BigKinds. I collected data focusing on the keyword 'XR', spanning approximately 14 years from 2010 to 2024. The gathered data underwent a cleansing process and was analyzed in three ways: keyword trend analysis, relational analysis, and word cloud. The analysis identified the emergence and most active discussion periods of XR, with XR devices and manufacturers emerging as key keywords.

인공신경망기법을 이용한 하천수질인자의 예측모델링 - BOD와 DO를 중심으로- (Predictive Modeling of River Water Quality Factors Using Artificial Neural Network Technique - Focusing on BOD and DO-)

  • 조현경
    • 한국환경과학회지
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    • 제9권6호
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    • pp.455-462
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    • 2000
  • This study aims at the development of the model for a forecasting of water quality in river basins using artificial neural network technique. Water quality by Artificial Neural Network Model forecasted and compared with observed values at the Sangju q and Dalsung stations in Nakdong river basin. For it, a multi-layer neural network was constructed to forecast river water quality. The neural network learns continuous-valued input and output data. Input data was selected as BOD, CO discharge and precipitation. As a result, it showed that method III of three methods was suitable more han other methods by statistical test(ME, MSE, Bias and VER). Therefore, it showed that Artificial Neural Network Model was suitable for forecasting river water quality.

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디지털 기술을 활용한 문화상품 디자인 개발 연구 (A study on design development for cultural by using digital technology)

  • 곽우섭
    • 한국가구학회지
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    • 제16권1호
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    • pp.27-37
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    • 2005
  • Opening 21th Century, all the Countries of the world has been focusing on build up the foundation of cultural infrastructure in a various way, since the awareness of importance for cultural design products has been turnover. For this reason, all the countries in the world, recognize that it is more important than any other things to plan to establish a structure which is suitable to the real conditions of a region in order to efficiently manage or operate their cultural environment, in particular, they think it is urgent they should contrive to develop their regional industries with new information media, introduction and spread of the up-to-date technique of design. However, our regional related industries very difficulty for the moment for them to apply new, designing technique or to settle technical bottlenecks themselves. Accordingly, in order to resolve such a structural point at issue, this study has carried the newly designed and developed, wooden, cultural craft items that were produced by utilizing the ultramodern digital technology installed at TIDIC, it would contribute to achieve some global cultural products.

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선형근사 기법을 이용한 단일비행구간의 좌석할당 모형 (Seat Allocation Model for Single Flight-leg using Linear Approximation Technique)

  • 송윤숙;이휘영
    • 한국경영과학회:학술대회논문집
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    • 한국경영과학회 2008년도 추계학술대회 및 정기총회
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    • pp.65-75
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    • 2008
  • Over the last three decades, there are many researches focusing on the practice and theory of RM in airlines. Most of them have dealt with a seat assignment problem for maximizing the total revenue. In this study, we focus on a seat assignment problem in airlines. The seat assignment problem can be modeled as a stochastic programming model which is difficulty to solve optimally. However, with some assumptions on the demand distribution functions and a linear approximation technique, we can transform the complex stochastic programming model to a Linear Programming model. Some computational experiments are performed to evaluate out model with randomly generated data. They show that our model has a good performance comparing to existing models, and can be considered as a basis for further studies on improving existing seat assignment models.

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GPS probe 및 루프 검지기 자료의 융합을 통한 통행시간추정 알고리즘 개발 (A development of travel time estimation algorithm fusing GPS probe and loop detector)

  • 정연식;최기주
    • 대한교통학회지
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    • 제17권3호
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    • pp.97-116
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    • 1999
  • The growing demand for the real time traffic information is bringing about the category and number of traffic collection mechanism in the era of ITS. There are, however, two problems in making data into information using various traffic data. First, the information making process of making data into the representative information, for each traffic collection mechanism, for the specified analysis periods is required. Second, the integration process of fusing each representative information into "the information" for each link out of each source is also required. That is, both data reduction and/or data to information process and information fusion are required. This article is focusing on the development of information fusing algorithm based on voting technique, fuzzy regression, and, Bayesian pooling technique for estimating the dynamic link travel time of networks. The proposed algorithm has been validated using the field experiment data out of GPS probes and detectors over the roadways and the estimated link travel time from the algorithm is proved to be more useful than the mere arithmetic mean from each traffic source.

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