• Title/Summary/Keyword: F-Measure

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Cognitive Evaluation on Body Exposure of Female Clothing (여성의 신체노출의상에 대한 인지적 평가)

  • 조은영;홍병숙
    • Journal of the Korean Society of Clothing and Textiles
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    • v.19 no.5
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    • pp.723-737
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    • 1995
  • The purposes of this study were to investigate 1) the difference of cognitive evaluation on body exposure of female clothing, ann 2) purchase frequency and intention of wearing according to demographic variables. The instrument of this study consisted of response scale and stimuli. Thirty three items of 7.point Likert scale were developed to measure cognitive evaluation of the people who responded. The stimuli were 7 types of clothing, differing exposure parts and style on line drawing. The sample included 450 subjects, consisting of 231 in Seoul and 219 in Chun-nam Province. Statistics applied for analysis were frequency, percentage, mean, standard deviation, correlation, t-test, F-test, Duncan's multiple range test, factor analysis. The Results were: 1. Constructing factors of cognitive evaluation consisted of elegance, sensuality, attraction, individuality. There were significant differences in every factor on each types of clothing. 2. The evaluation toward each types of clothing was influenced by the subjects' sex, age, and residence. 3. Purchase frequency and intention of female subjects' wearing were very low, and there were significant differences on demographic variables.

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Utterance Intention Analysis Using CNN-LSTM Neural Network (CNN-LSTM 신경망을 이용한 발화 분석 모델)

  • Kim, Min-Kyoung;Kim, Harksoo
    • 한국어정보학회:학술대회논문집
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    • 2017.10a
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    • pp.122-124
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    • 2017
  • 대화시스템이 적절한 응답을 제시해 주기 위해서는 사용자의 의도를 분석하는 것은 중요한 일이다. 사용자의 의도는 도메인에 독립적인 화행과 도메인에 종속적인 서술자의 쌍으로 나타낼 수 있다. 사용자 의도를 정확하게 분석하기 위해서는 화행과 서술자를 동시에 분석하고 대화의 문맥을 고려해야 한다. 본 논문에서 제안하는 모델은 합성곱 신경망에서 공유 계층을 이용하여 화행과 서술자간 상호작용이 반영된 발화 임베딩 모델을 학습한다. 그리고 순환 신경망을 통해 대화의 문맥을 반영하여 발화를 분석한다. 실험 결과 제안 모델이 이전 모델들 보다 높은 성능 (F1-measure로 화행에 대해 0.973, 서술자 0.919)을 보였다.

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Position Estimation of an Underground Acoustic Source by a Passive Sonar System

  • Jarng, Soon-Suck
    • Proceedings of the Acoustical Society of Korea Conference
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    • 1998.06e
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    • pp.133-136
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    • 1998
  • The aim of the work described in this paper is to develop a complex underground acoustic system which detects and locates the origin of an underground hammering sound using an array of six hydrophones located about 100m underground. Two different methods for the sound localization will be presented, a time-delay method and a power-attenuation method. In the time-delay method, the cross correlation of the signals received from the array of sensor sis used to calculate the time delays between those signals. In the power-attenuation method, the powers of the received signals provide a measure f the distances of the source from the sensors.

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A Study on Measurement of NO Concentrations in Laminar Nonpremixed $H_2/N_2$ Flame by LIF (레이저 유도 형광법(LIF)을 이용한 층류 비예혼합 $H_2/N_2$화염에서의 NO 농도측정에 관한 연구)

  • Kim, Sun-Wook;Jin, Seong-Ho;Kim, Gyung-Soo;Park, Kyoung-Suk
    • 한국연소학회:학술대회논문집
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    • 2001.06a
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    • pp.133-138
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    • 2001
  • In this study, quantitative nitric oxide concentration distributions are investigated in the laminar nonpremixed $H_2/N_2$ flames by laser-induced fluorescence (LIF). The measurements are taken in flames for different $N_2$ dilution ratios varying from 20${\sim}$80%, and fuel now rate is fixed as lslpm. The NO A-X (0,0) vibrational band around 226 nm is excited using a XeCl excimer-pumped dye laser. We applied same excitation line used in $CH_4$ premixed flame. Overall, NO concentration was rapidly decreased with $N_2$ addition and we could not measure the concentration any longer for $N_2$ dilution above 80%.

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Determination of Alpha Defect Center in the Nature Using EPR Spectroscopy

  • Cho, Young-Hwan;Hyun, Sung-Pil;Pilsoo Hahn
    • Journal of the Korean Magnetic Resonance Society
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    • v.5 no.1
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    • pp.13-18
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    • 2001
  • Natural alpha radiation produced a stable defect center to certain minerals. Electron Paramagnetic Resonance(EPR) spectroscopy is a powerful tool f3r quantifying this defect center. EPR method has been applied to trace alpha-radiation effect around the uranium ore deposit. The results show that EPR technique can be used to measure rapidly and nondestructively the defect center produced by natural alpha radiation. In general, a good correlation was achieved between defect center concentration and actinide elements(U, Th). These results imply that the concentration of defect center is dependent on the alpha radiation dose over long time scale.

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Acute Toxicity of Heavy Metals in Three Gobiidae Species (망둑어 3종에 대한 중금속의 급성독성)

  • Kim, Jun-Hwan;Hwang, Un-Gi;Kang, Ju-Chan
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.45 no.2
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    • pp.161-166
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    • 2012
  • The estuarine Gobiidae $Tridentiger$ $trigonocephalus$, $Chasmichthys$ $dolichognathus$ and $Favonigobius$ $gymnauchen$ were exposed to various heavy metals. As a measure of acute toxicity, the 96h-$LC_{50}$ in the three species exposed to copper, lead, zinc and chromium was 740-990, 1,660-1,980, 6,180-8,490 and 8,830-11,296 ${\mu}gL^{-1}$, respectively. In order of toxicity, the heavy metals were ranked copper>lead>zinc>chromium. The Gobiidae $C.$ $dolichognathus$ was more sensitive to heavy metals than $T.$ $trigonocephalus$ and $F.$ $gymnauchen$.

Rat Magnetocardiograms Measured by YBCO SQUID Magnetometer (YBCO SQUID를 이용한 실험쥐의 심자도 측정)

  • Ahn, San;Kim, I.S.;Song, J.H.
    • Progress in Superconductivity
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    • v.12 no.2
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    • pp.124-128
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    • 2011
  • We have developed a high-$T_C$ SQUID magnetometer system to measure magnetocardiograms of laboratory rats. White noise of the measurement system was about 50 fT/$Hz^{1/2}$ when measured in a magnetically shielded box. We optimized the measurement position to obtain clear MCG wave from rat's small heart by using grid measurements. With the optimization, the MCG signal was successfully detected with the peak amplitude of about 50 pT. We could observe well defined P-, QRS-, and T-wave from the rat MCG. The results suggest that the developed system has a strong potential to monitor the progress of heart disease model using laboratory rat.

Predicting football scores via Poisson regression model: applications to the National Football League

  • Saraiva, Erlandson F.;Suzuki, Adriano K.;Filho, Ciro A.O.;Louzada, Francisco
    • Communications for Statistical Applications and Methods
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    • v.23 no.4
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    • pp.297-319
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    • 2016
  • Football match predictions are of great interest to fans and sports press. In the last few years it has been the focus of several studies. In this paper, we propose the Poisson regression model in order to football match outcomes. We applied the proposed methodology to two national competitions: the 2012-2013 English Premier League and the 2015 Brazilian Football League. The number of goals scored by each team in a match is assumed to follow Poisson distribution, whose average reflects the strength of the attack, defense and the home team advantage. Inferences about all unknown quantities involved are made using a Bayesian approach. We calculate the probabilities of win, draw and loss for each match using a simulation procedure. Besides, also using simulation, the probability of a team qualifying for continental tournaments, being crowned champion or relegated to the second division is obtained.

Optimal configuration control for redundant robot manipulators-manipulability-based approach (여유 자유도 로봇의 최적 자세 제어)

  • Lee, Ji-Hong;Lee, Mi-Gyung;Lee, Young-Il;Yoo, Jun
    • 제어로봇시스템학회:학술대회논문집
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    • 1996.10b
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    • pp.739-742
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    • 1996
  • Several figures representing velocity transmission from joint space to task space are analyzed and compared with each other. The figures include velocity ellipsoid derived from Jacobian matrix, scaled velocity ellipsoid derived from normalized joint velocities, polytope derived by numerical scaling, and polytopes derived by linear combinations of Jacobian column vectors. The results show that the optimal directions given by the measures are not the same and the conventional velocity ellipsoid is not good choice as optimization measure as far as the moving direction is concerned. Simulation examples for 3 d.o.f. redundant robot manipulators in 2-dimensional task space are given for comparison study.

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Multisensor System Integrating Optical Tactile and F/T Sensors for Determination of Type and Position of 3D Contact Surface (3차원 접촉면의 인식 및 위치의 결정의 위한 광촉각센서와 역각센서의 다중센서시스템)

  • 한헌수
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.33B no.2
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    • pp.10-19
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    • 1996
  • This paper presents a finger-shaped multisensor system which can measure the tyep and position of a target surface by contactl. The multi-sensor system consists of a sphere-shpaed optical tactile sensor located at the finger tip and a force/torque sensor located at the joint of a finger. The optial tactile sensor determines the type and position of the target surface using the shape and position of the CCD image of the touching area generated by a contact between the sensor and the taget surface. The force/torque sensor also determines the position and surface normal vector by applying the distributionof forces and torques t the contact point to the equations of finger shape. The measurements on the position and surface normal vector at a contact point obtined by two individual sensors are fused using a statistical method. The integrated sensor system has 0.8mm error in position measurement and 1.31$^{\circ}$ error in normal vector measurement. The developed sensor system has many applications, such as autonomous compliance control, automatic grasping and recognition, etc.

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