• 제목/요약/키워드: Research Survey

검색결과 22,776건 처리시간 0.043초

텍스트 감정분석을 이용한 IT 서비스 품질요소 분석 (Analysis of IT Service Quality Elements Using Text Sentiment Analysis)

  • 김홍삼;김종수
    • 산업경영시스템학회지
    • /
    • 제43권4호
    • /
    • pp.33-40
    • /
    • 2020
  • In order to satisfy customers, it is important to identify the quality elements that affect customers' satisfaction. The Kano model has been widely used in identifying multi-dimensional quality attributes in this purpose. However, the model suffers from various shortcomings and limitations, especially those related to survey practices such as the data amount, reply attitude and cost. In this research, a model based on the text sentiment analysis is proposed, which aims to substitute the survey-based data gathering process of Kano models with sentiment analysis. In this model, from the set of opinion text, quality elements for the research are extracted using the morpheme analysis. The opinions' polarity attributes are evaluated using text sentiment analysis, and those polarity text items are transformed into equivalent Kano survey questions. Replies for the transformed survey questions are generated based on the total score of the original data. Then, the question-reply set is analyzed using both the original Kano evaluation method and the satisfaction index method. The proposed research model has been tested using a large amount of data of public IT service project evaluations. The result shows that it can replace the existing practice and it promises advantages in terms of quality and cost of data gathering. The authors hope that the proposed model of this research may serve as a new quality analysis model for a wide range of areas.

"과학교육론" 과목의 교수모형과 교재개발연구 (An Instructional Planning and Reading Material Development for the "Foundation of Science Education" Course)

  • 박승재
    • 한국과학교육학회지
    • /
    • 제4권1호
    • /
    • pp.44-56
    • /
    • 1984
  • There haw been some courses related to science education for the graduate students, but almost the study for no instructional model and reading material development haw been pursunded in Korea. This study intended to discuss the discipline character of science education research for the systematic survey of concepts, principles and theories related to science education as the first put task, and designed an instructional model of the introductory survey course of science education at graduate level, and then proposed a developmental plan of a reading material for the course teaching aid. The main work of the study was to survey the foreign literature, but the subjective analysis of researcher's courses work during graduate study in abroard and some courses offered to undergraduate and graduate students in Korea by this researcher was quite helpful, even though which was not a strictly designed experimental research. Later it was found that this kind of study was not fitted to the traditional research style but worth while to try for the research in and teaching of "science education" as an area of discipline and professional activity.

  • PDF

Diet and Lifestyle Factors Affecting Obesity: A Korea National Health and Nutrition Survey Analysis

  • Kwock, Chang-Keun;Lee, Jung-Min;Kim, Eun-Mi;Lee, Min-A
    • Preventive Nutrition and Food Science
    • /
    • 제16권2호
    • /
    • pp.117-126
    • /
    • 2011
  • This study investigated potential causes of obesity by examining diet and lifestyle factors. The data from the 2008 Korea National Health and Nutrition Survey were statistically analyzed to determine the relative importance of causes of obesity. Because the factors affecting obesity for males and females were significantly different, binary choice logistic models of the male and female subjects were built and estimated separately. Our results show that stress, the irregularity of eating breakfast, and frequency of eating out had the three greatest impacts on male obesity, respectively, and stress, employment status, and age had the greatest impacts on female obesity, in that order.

표면차수벽 석괴댐의 물리탐사 경향 분석 (Aanalysis of Geophysical exploration tendency of C.F.R.D)

  • 김재홍;신동훈;임은상
    • 한국지반공학회:학술대회논문집
    • /
    • 한국지반공학회 2010년도 춘계 학술발표회
    • /
    • pp.871-876
    • /
    • 2010
  • When surface Concrete Face Rock fill Dam constructs than existent center core type rock fill dam, it is much prevalent form in domestic these day by quality control of that is profitable and weather condition etc. of coreZone. C.F.R.D is less research about seismic survey(Refractional Seismic Prospectin, Resistivity Prospecting) of levee body than fill dam. Thus as C.F.R.D seismic survey is less, safety of that consist is short most development flue is high reason. That is not checking target of minuteness safety diagnosis and so on by short operation period. Wish to analyze inquiry incidental and difference with center core type dam and acquire C.F.R.D preservation administration upper necessary inquiry condition forward hereafter.

  • PDF

도축우(屠畜牛)에 있어서 주육포자충(住肉胞子蟲) 감염실태조사(感染實態調査) (A Survey of Sarcocystis infections in slaughtered cattle in Korea)

  • 강영배;김상희;위성환
    • 대한수의학회지
    • /
    • 제28권2호
    • /
    • pp.387-390
    • /
    • 1988
  • A preliminary survey of Sarcocystis species in the slaughtered cattle in Seoul was undertaken during October through December 1987, using digestion diagnostic technique for the heart muscle specimens digested in 0.5% trypsin solution. Results indicated that 41.5% of 159 bovine hearts were infected with Sarcocystis proliferative forms. High frequencies in the exotic dairy cattle(42.2%) and the Korean native cattle(41.7%) were noticed in comparison with low frequency in the cross breed(25.0%). No differences were indicated between the sexes of the host animals, although an age difference was noticed as 48.9% in cattle older than four years in comparison with 39.0% and 37.1% in younger than two years and in two to four years, respectively.

  • PDF

A SURVEY ON CURRENT STATUS OF RICE PROCESSING FACILITIES

  • Lee, S.H.;Choi, H.S.;Cho, Y.K.;Lee, Y.B.;Park, K.K.
    • 한국농업기계학회:학술대회논문집
    • /
    • 한국농업기계학회 2000년도 THE THIRD INTERNATIONAL CONFERENCE ON AGRICULTURAL MACHINERY ENGINEERING. V.II
    • /
    • pp.363-369
    • /
    • 2000
  • A survey on the rice processing facilities scattered in the country was conducted in order to collect some basic data for the facilities upgrading and renovation plans. Thirty RPC and 287 custom rice mills were randomly selected among 30 cities and counties in eight provinces where the present status of facilities, management practices and other matters were monitored and evaluated. Following are the major findings of this survey.

  • PDF

A Survey of Deep Learning in Agriculture: Techniques and Their Applications

  • Ren, Chengjuan;Kim, Dae-Kyoo;Jeong, Dongwon
    • Journal of Information Processing Systems
    • /
    • 제16권5호
    • /
    • pp.1015-1033
    • /
    • 2020
  • With promising results and enormous capability, deep learning technology has attracted more and more attention to both theoretical research and applications for a variety of image processing and computer vision tasks. In this paper, we investigate 32 research contributions that apply deep learning techniques to the agriculture domain. Different types of deep neural network architectures in agriculture are surveyed and the current state-of-the-art methods are summarized. This paper ends with a discussion of the advantages and disadvantages of deep learning and future research topics. The survey shows that deep learning-based research has superior performance in terms of accuracy, which is beyond the standard machine learning techniques nowadays.

해외기술인력 유치 활성화를 위한 조사연구 (A Survey Research on Attracting Foreign Technology Professionals and Policy Recommendations)

  • 이광철;전용욱;백성진
    • 기술혁신연구
    • /
    • 제13권3호
    • /
    • pp.257-287
    • /
    • 2005
  • The purpose of this paper is to develop a desirable government policy for attracting highly skilled professional foreign human resources. To achieve the purpose, following research methods were pursued; 1) a review on the current status of government policy on highly qualified foreign professionals, 2) case studies on foreign governments' policy on the issue, 3) a survey over Korean firms which are employing foreign high-tech professionals. Based on above research results, policy suggestions for the Korean government are recommended as follows: formulating a basic framework of the government policy to attract foreign high-tech professionals, revising the nonimmigrant visa policy for foreign professionals, collecting and distributing personnel data of foreign applicants for jobs In Korea, developing external and internal public relations, revising the method of supporting small and medium-sized firms, taking a systematic approach to attract korean-American scientists, redesigning sponsorship programs for inviting world famous scholars and scientists, increasing global joint research projects, facilitating favorable infrastructure for foreign engineers and scientists.

  • PDF

강원 연안에서 삼중자망에 의한 어획물의 종조성 및 분포특성 (Species Composition and Distribution of Trammel Net Catches in the Coastal Waters of Gangwon Province, Korea)

  • 손명호;윤병선;박정호;최영민;양재형
    • 한국수산과학회지
    • /
    • 제47권6호
    • /
    • pp.945-959
    • /
    • 2014
  • This study was conducted to provide basic data for optimal fisheries management through the accurate understanding the catches, fishing level, species composition, distribution characteristics and fisheries status of trammel net in Gangwon Province. As the results of trammel net survey, Pisces were collected 77 species, 1,983.0 kg, Crustacea 9 species, 569.0 kg, Cephalopoda 5 species, 75.3 kg, Gastropoda 12 species, 16.5 kg in the coastal waters of Sokcho and Pisces 55 species, 3,681.5 kg, Crustacea 6 species, 2,229.8 kg, Gastropoda 10 species, 72.8 kg, Cephalopoda 4 species, 10.1 kg in the coastal waters of Donghae, respectively. The catches of important species with season and depths showed that the main target species is Pleuronectidae spp. at all depth and Aptocyclus ventricosus at <100 m in Sokcho, Liparis spp. and Dasycottus setiger at 200-500 m in Donghae, respectively. The mean total length (cm) of Gadus macrocephalus and Aptocyclus ventricosus didn't appear significant difference, but the mean total length of Pleuronectidae spp., Liparis spp. and D. setiger in Donghae is bigger than in Sokcho. From the cluster and MDS analysis based on Bray-Curtis similarity matrix of fourth root transformed, catches data of dominant species in the coastal waters of Sokcho and Donghae was divided into three different groups of the demersal organisms community in 12 survey of Donghae (Group A) and Jul., Oct.-Dec. survey of Sokcho (Group B) and Jan.-Jun. and Aug.-Sep. survey of Sokcho (Group C).

환경오염물질 노출수준의 계절적 변이와 그 함의 - 제2기 국민환경보건기초조사(2012-2014) (Seasonal Variations of Exposure to Environmental Chemicals: Implication from the Korean National Environmental Health Survey (2012-2014))

  • 황문영;류정민;권영민;홍수연;박충희
    • 한국환경보건학회지
    • /
    • 제44권6호
    • /
    • pp.572-580
    • /
    • 2018
  • Objectives: Human biomonitoring (HBM) is a measurement of the chemicals and their metabolites in human biological samples and has been successfully employed to determine the exposure levels of environmental chemicals. In this study, we analyzed seasonal variations of the blood or urinary levels of chemicals, and assessed that these differences could affect the results of association study. Methods: The Korea National Environmental Health Survey (KoNEHS) is a nationwide survey that analyzes exposure levels of environmental pollutants, 19 kinds of chemicals including heavy metals and organic chemicals, and the exposure factors in the general population. Based on KoNEHS data, we analyzed the levels of chemicals concentrations over the total survey period (2012-2014) and each season, and assessed the association of thyroid measures with phthalate metabolite and BPA. Results: Exposure levels of blood mercury and lead were lower in summer compare to winter. Bisphenol A and PAHs metabolites were higher in spring and summer, but lower in autumn. VOCs metabolites were generally lower in summer and autumn. Phthalate metabolites were higher in all other seasons than in winter. Pyrethroid metabolite, 3-PBA, was higher in summer and autumn. Regarding seasonal variation of chemical exposures, the statistical significance and size of effects between thyroid measures and phthalate and BPA were changed with season. Conclusion: Seasonal variations of chemical exposure and health outcome should be considered for interpreting biomonitoring results from a public health context.