• 제목/요약/키워드: Numeric analysis

검색결과 224건 처리시간 0.029초

패션제품의 숫자 결합 상표명에 대한 이미지와 태도에 관한 연구 (Image and Altitude on the Alpha-Numeric Brand Name of Fashion Products)

  • 박혜원;류은정
    • 복식문화연구
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    • 제13권3호
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    • pp.494-502
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    • 2005
  • The purposes of this study were to investigate the images on the alpha numeric brand name of fashion products, to identify the influences of clothing pursuit benefit on the brand name image and to determine the significant images on the attitude and purchasing intention. The data were collected via a self-administered questionnaire from 270 male and female students of undergraduate school in Kyongnam province during the March, 2004. Using SPSS 12.0 package, Cronbach's a, frequency analysis, factor analysis, and multiple regression analysis were performed. The results could be summarized as follows: First, the image dimensions of alpha-numeric brand name were composed of natural, new, active, urban, impactive and interesting image. Clothing pursuit benefits were composed of the brand value, attractiveness, fashion, individuality and economic value pursuit, Second, Clothing pursuit benefits had an significant effect on the image preference of alpha-numeric brand name. Especially, individuality pursuit and attractiveness pursuit have influenced on the natural, new, active, urban images. Third, the new, active, impactive, natural images had significant effects on the attitude, purchasing intention and conformity of products.

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Praat를 이용한 숫자음의 음향적 분석법 (An acoustical analysis method of numeric sounds by Praat)

  • 양병곤
    • 음성과학
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    • 제7권2호
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    • pp.127-137
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    • 2000
  • This paper presents a macro script to analyze numeric sounds by a speech analysis shareware, Praat, and analyzes those sounds produced by three students who were born and raised in Pusan. Recording was done in a quiet office. To make a meaningful comparison, dynamic time points in relation to the total duration of voicing segments were determined to measure acoustical values. Results showed that a strong correlation coefficient was found between the repetitive production of numeric sounds within and across the speakers. Very high coefficients among diphthongal numbers (0 and 6) which usually show wide formant variation were noticed. This supports that each speaker produced numbers quite coherently. Also, the frequency differences between the three subjects were within a perceptually similar range. To identify a speaker among others may require to find subtle individual differences within this range. Perceptual experiments by synthesized numeric sounds may lead to resolve the issue.

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구배법 알고리즘에 의한 슬래브축열의 최적제어 해석 (An Analysis of the Optimal Control of Air-Conditioning System with Slab Thermal Storage by the Gradient Method Algorithm)

  • 정재훈
    • 설비공학논문집
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    • 제20권8호
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    • pp.534-540
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    • 2008
  • In this paper, the optimal bang-bang control problem of an air-conditioning system with slab thermal storage was formulated by gradient method. Furthermore, the numeric solution obtained by gradient method algorithm was compared with the analytic solution obtained on the basis of maximum principle. The control variable is changed uncontinuously at the start time of thermal storage operation in an analytic solution. On the other hand, it is showed as a continuous solution in a numeric solution. The numeric solution reproduces the analytic solution when a tolerance for convergence is applied severely. It is conceivable that gradient method is effective in the analysis of the optimal bang-bang control of the large-scale system like an air-conditioning system with slab thermal storage.

독립성분 분석을 이용한 번호판 숫자 인식 (Recognition of Numeric Characters in License Plate based on Independent Component Analysis)

  • 정병준;강현철
    • 대한전자공학회논문지SP
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    • 제46권2호
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    • pp.99-107
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    • 2009
  • 본 논문에서는 자동차 번호판 숫자의 특징을 추출하기 위해 강화된 독립성분분석(independent component analysis)의 혼합모델을 제안한다 독립성분분석은 고차 통계적 특성만을 이용하기 때문에 고차 통계적 특성과 숫자 종류별 상관관계에 대한 특성을 고려하지 못한다. 이러한 독립성분분석의 한계를 극복하기 위해, 본 논문에서는 주성분분석(principle component analysis)과 선형판별분석(linear discriminant analysis)을 조합한 혼합 모델 형태의 독립성분분석을 제안한다. 실험 결과, 제안된 혼합 모델은 독립성분분석이나 다른 혼합 모델들보다 특징 추출과 인식에서 우수한 성능을 보임을 확인하였다.

Predicting numeric ratings for Google apps using text features and ensemble learning

  • Umer, Muhammad;Ashraf, Imran;Mehmood, Arif;Ullah, Saleem;Choi, Gyu Sang
    • ETRI Journal
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    • 제43권1호
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    • pp.95-108
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    • 2021
  • Application (app) ratings are feedback provided voluntarily by users and serve as important evaluation criteria for apps. However, these ratings can often be biased owing to insufficient or missing votes. Additionally, significant differences have been observed between numeric ratings and user reviews. This study aims to predict the numeric ratings of Google apps using machine learning classifiers. It exploits numeric app ratings provided by users as training data and returns authentic mobile app ratings by analyzing user reviews. An ensemble learning model is proposed for this purpose that considers term frequency/inverse document frequency (TF/IDF) features. Three TF/IDF features, including unigrams, bigrams, and trigrams, were used. The dataset was scraped from the Google Play store, extracting data from 14 different app categories. Biased and unbiased user ratings were discriminated using TextBlob analysis to formulate the ground truth, from which the classifier prediction accuracy was then evaluated. The results demonstrate the high potential for machine learning-based classifiers to predict authentic numeric ratings based on actual user reviews.

Parents' meal choices for their children at fast food and family restaurants with different menu labeling presentations

  • Lee, Kiwon;Lee, Youngmi
    • Nutrition Research and Practice
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    • 제12권3호
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    • pp.243-250
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    • 2018
  • BACKGROUND/OBJECTIVES: This study examined the effect of nutrition labeling formats on parents' food choices for their children at different restaurant types. SUBJECTS/METHODS: An online survey was conducted with 1,980 parents of children aged 3-12 years. Participants were randomly assigned to fast food or family restaurant scenarios, and one of four menu stimuli conditions: no labeling, low-calorie symbol (symbol), numeric value (numeric), and both low-calorie symbol and numeric value (symbol + numeric). Participants selected menu items for their children. Menu choices and total calories were compared by nutrition labeling formats in each type of the restaurant. RESULTS: Low-calorie item selections were scored and a two-way analysis of variance (ANOVA) was conducted for an interaction effect between restaurant and labeling type. In the fast food restaurant group, parents presented with low-calorie symbols selected the lowest calorie items more often than those not presented with the format. Parents in the symbol + numeric condition selected significantly fewer calories (653 kcal) than those in the no labeling (677 kcal) or numeric conditions (674 kcal) (P = 0.006). In the family restaurant group, no significant difference were observed among different labeling conditions. A significant interaction between restaurant and labeling type on low-calorie selection score (F = 6.03, P < 0.01) suggests that the effect of nutrition labeling format interplays with restaurant type to jointly affect parents' food choices for their children. CONCLUSIONS: The provision of easily interpretable nutritional information format at fast food restaurants may encourage healthier food choices of parents for their children; however, the effects were negligible at family restaurants.

수치해석프로그램을 이용한 전계분포해석과 부분방전의 발생 (Electric field distribution Analysis and Occurrence of Partial Discharge using Numeric Analysis Program)

  • 이강원;박철현;강성화;임기조
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2004년도 추계학술대회 논문집 Vol.17
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    • pp.603-606
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    • 2004
  • Aspects of PD occurrence from PD sources are different with their physical and structural appearances which cause the variation of electric field distributions of them. This paper have investigated electric field distributions of some kinds of electrode structure by FEM applied analysis program. Numeric analysis is a good method to investigate Ihe electric and magnetic field distribution of partial discharge source. The analysis results were confirmed by real PD occurring situation in the laboratory.

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흑천의 유량조건별 오염부하량 특성 (Pollutant Load Characterization with Flow Conditions in Heukcheon Stream)

  • 최경완;이상원;노창완;이재관;이영준
    • 상하수도학회지
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    • 제29권5호
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    • pp.551-557
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    • 2015
  • The TMDL (Total Maximum Daily Load) has been used to determine the water quality target. LDC (Load Duration Curve) based on hydrology has been used to support water quality assessments and development of TMDL. Also FDC (Flow Duration Curve) analysis can be used as a general indicator of hydrologic condition. The LDC is developed by multiplying FDC with the numeric water quality target of the factor for the pollutant of concern. Therefore, this study was to create LDC using the stream flow data and numeric water quality target of BOD and T-P in order to evaluate the pollutant load characterization by flow conditions in Heukcheon stream. When it is to be a high-flows condition, BOD and T-P are necessary to manage. BOD and T-P did not satisfy the numeric water quality target for both seasons (spring and summer). In order to meet the numeric water quality target in Heukcheon stream, management of non point source pollutant is much more important than that of point source pollutant control.

Nonlinear analysis of RC structure with massive infill wall exposed to shake table

  • Onat, Onur;Lourenco, Paulo B.;Kocak, Ali
    • Earthquakes and Structures
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    • 제10권4호
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    • pp.811-828
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    • 2016
  • This study aims to present nonlinear time history analysis results of double leaf cavity wall (DLCW) reinforced concrete structure exposed to shake table tests. Simulation of the model was done by a Finite Element (FE) program. Shake table experiment was performed at the National Civil Engineering Laboratory in Lisbon, Portugal. The results of the experiment were compared with numeric DLCW model and numeric model of reinforced concrete structure with unreinforced masonry wall (URM). Both DLCW and URM models have two bays and two stories. Dimensions of the tested structure and finite element models are 1:1.5 scaled according to Cauchy Froude similitude law. The URM model has no experimental results but the purpose is to compare their performance level with the DLCW model. Results of the analysis were compared with experimental response and were evaluated according to ASCE/SEI 41-06 code.

하지방사통을 동반한 요추 추간판 탈출증 환자에 대한 이상근 MSAT 치료군과 비치료군의 후향적 호전도 비교 연구 (Comparison of Effects between MSAT on Piriformis Muscle and Non-MSAT on Piriformis Muscle in Patients with HLD with Leg Radiating Pain: A Retrospective Analysis)

  • 허석원;최철우;이동현;유형진;윤용일;임한빛;정연재;김동환
    • 한방재활의학과학회지
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    • 제24권3호
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    • pp.131-137
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    • 2014
  • Objectives The purpose of this study was to compare the effects of MSAT (Mostion style acuputure treatment) on piriformis muscle regarding leg radiating pain with HIVD of L-SPINE. Methods Forty patients who received inpatient treatment from Febuarary 1 to March 31, 2014 in the Daejon-Jaseng oriental medicine hospital were divided into 2 groups by blocked randomization : Group A (n=20)=routine treatment on HIVD of L-SPINE with MSAT on piriformis muscle and Group B (n=20)=routine treatment on HIVD of L-SPINE (acupuncture, Shinbaro pharmacopuncture, herb medication, chuna treatment and physiotherapy). The MSAT (Mostion style acuputure treatment) on piriformis muscle was administered each day and both groups were received routine treatment each day. Evaluations were made before treatment, after 3 days and 7 days, and before discharge using the NRS (numeric rating scale) and ODI (oswestry disability index). The statistically significance was evaluated by SPSS 18.0 for windows. Results Compared to before treatment, the NRS (numeric rating scale) and ODI (oswestry disability index) of both A and B groups after 3, 7 days and before discharge of treatment significantly decreased (p<0.05). Regarding group comparison, the NRS (numeric rating scale) and ODI (oswestry disability index) of A group was significantly lower than the B group at 3, 7 days, before dischanre (p<0.05). Regarding improvement of the NRS (numeric rating scale) and ODI (oswestry disability index), A group was significantly lower than the B group at 3 day (NRS), 7day (ODI) (p=0.000) but there was no significant difference between the two groups at 7 days (NRS) and before discharge (p>0.05). Conclusions Compared to just routine treatment, the MSAT (Mostion style acuputure treatment) on piriformis muscle significantly improved the NRS (numeric rating scale) and ODI (oswestry disability index) after 3, 7 days, and before discharge. Because early intervention determines the grade of Leg radiating pain with HIVD of L-SPINE, the MSAT (Mostion style acuputure treatment) on piriformisat the early stage will be clinically helpful to patients.