• 제목/요약/키워드: Functionality Evaluation

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Evaluation and Functionality Stems Extraction for App Categorization on Apple iTunes Store by Using Mixed Methods : Data Mining for Categorization Improvement

  • Zhang, Chao;Wan, Lili
    • 한국IT서비스학회지
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    • 제17권2호
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    • pp.111-128
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    • 2018
  • About 3.9 million apps and 24 primary categories can be approved on Apple iTunes Store. Making accurate categorization can potentially receive many benefits for developers, app stores, and users, such as improving discoverability and receiving long-term revenue. However, current categorization problems may cause usage inefficiency and confusion, especially for cross-attribution, etc. This study focused on evaluating the reliability of app categorization on Apple iTunes Store by using several rounds of inter-rater reliability statistics, locating categorization problems based on Machine Learning, and making more accurate suggestions about representative functionality stems for each primary category. A mixed methods research was performed and total 4905 popular apps were observed. The original categorization was proved to be substantial reliable but need further improvement. The representative functionality stems for each category were identified. This paper may provide some fusion research experience and methodological suggestions in categorization research field and improve app store's categorization in discoverability.

가공식품 중 돈육 검출을 위한 샌드위치 ELISA 개발 (Development of Sandwich ELISA for the Detection of Pork in Processed Foods)

  • 백수연;도정룡;손동화
    • 한국식품과학회지
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    • 제47권3호
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    • pp.401-404
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    • 2015
  • 가공식품 중 돈육의 검출을 위한 샌드위치 ELISA (sELISA)의 조건을 확립하기 위해 항돼지IgG 항체(goat anti-pig IgG antibody)를 이용하였다. 이때, 돈육의 검출범위는 $3-1,000ppm({\mu}g/mL)$이며, 검출한계는 2 ppm이었다. 특이항체의 교차반응 결과, 돼지IgG에 대한 반응성을 100%로 하였을 때, 돈육에 대한 반응성은 0.18%로 나타났으나, 여타의 식품원료에 대하여 반응하지 않았다. 열처리한 돈육에 대한 항체의 반응성은 $70^{\circ}C$까지는 32% 이상으로 양호하였으나 $80^{\circ}C$ 이상에서는 0.11% 이하로 반응성 급격히 감소하였다. 크림스프, 이유식, 어묵, 소스에 대한 spike test에서 돈육의 분석회수율은 각각 8.8, 45, 36, 39%로 나타났다. sELISA에 의하여 12점의 시판 가공식품 시료 중 돈육의 함유 유무를 조사한 결과, 정성적으로 원료의 표시사항과 100% 일치하였다.

가공식품 중 새우의 검출을 위한 샌드위치 ELISA의 개발 (Development of Sandwich ELISA for the Detection of Shrimp in Processed Foods)

  • 도정룡;백수연;손동화
    • 한국식품과학회지
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    • 제46권5호
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    • pp.538-543
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    • 2014
  • 가공식품 중 새우의 검출을 위한 샌드위치 ELISA(sELISA)의 조건을 확립하기 위해 홍다리 새우의 tropomyosin에 대한 특이항체를 이용하여 하였다. 이때, 새우의 검출범위는 1-100 ppm (${\mu}g/mL$)이며, 검출한계는 0.3 ppm이었다. 특이항체의 교차반응 결과, 홍다리새우, 흰다리 새우, 칵테일 새우, 바다가재, 꽃게에 대한 반응성은 각각 100, 73, 155, 18, 0%를 나타내었으며 새우에 대한 특이성이 매우 높았다. 열처리한 시료와 항체간의 반응성은 $100^{\circ}C$까지는 121-221%로 안정하였으나 $121^{\circ}C$에서는 반응성이 급격히 감소하였다(7.8%). 크림스프, 이유식, 소시지, 어묵, 소스에 대한 spike test에서 새우의 분석회수율은 각각 397, 639, 168, 234, 0%로 소스를 제외하고 매우 높게 나타났다. sELISA에 의하여 14점의 시판시료 중 새우의 함유 유무를 조사한 결과, 정성적으로 원료의 표시사항과 일치하는 비율은 79%이었다.

3차원 데이터를 활용하여 시니어를 대상으로 한 바디쉐이퍼의 보정기능성 평가 (Evaluation of Efficacy of Body Shaper for Senior Women Using 3D Scanned Data)

  • 김소영;홍경희;이희란
    • 한국의류산업학회지
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    • 제21권2호
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    • pp.220-230
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    • 2019
  • The Fourth Industrial Revolution has increased studies on observing the cross section by overlapping the clothing worn using 3D human body data. However, there is a lack of studies on the effect of pressure clothing that contracts the shape of the human body. Therefore, this study objectively evaluated the shaping functionality of body shapers using 3D scan and 3D data. Two types of commercial body shapers were selected for this study. The nude body and body wearing body shapers were then scanned. A 3D program evaluated the shaping functionality by overlapping the nude state with the body wearing body shaper A and B respectively. As a result, it was found that the effect of body shapers could be adequately observed according to body parts. The smaller body shaper was shown to have superior shaping capability with the abdomen more affected. Analysis of the horizontal cross section indicated that the waist circumference decreased by 6 cm when wearing body shaper A and decreased by 12cm when wearing body shaper B. The volume of the waist part decreased by 8.6% when wearing body shaper A and by 20.4% when wearing body shaper B. Therefore, it is more effective to compare the objective shaping functionality by body parts using the overlapped 3D scanned data rather than using exterior evaluation or length measurement when wearing clothing that contracts the body shape.

도로 접근성과 기능성을 이용한 통합청주시 농촌지역의 교통 취약성 분석 (Traffic Vulnerability Analysis of Rural Area using Road Accessibility and Functionality in Cheongju City)

  • 전정배;오현교;박진선;윤성수
    • 농촌계획
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    • 제21권2호
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    • pp.11-21
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    • 2015
  • This study carried out evaluation of vulnerability in accessability and functionality using road network that was extracted from Intelligent Transportation System(ITS) and digital map. It was built in order to figure out accessability that locational data which include community center, public facilities, medical facilities and highway IC. The method for grasping functionality are Digital Elevation Model(DEM) and land slide hazard map provided by Korea Forest Service. The evaluation criteria for figure out accessability was set to related comparison of average time in urban area. Functionality value was calculated by the possibility of backing the vehicle possibility of snowfall and landslides. At last, this research computed weighting value through Analytic Hierarchy Process (AHP), calculated a vulnerable score. As the result, the accessability of rural village came out that would spend more time by 1.4 to 3.2 times in comparison with urban area. Even though, vulnerability of the road by a snowfall was estimated that more than 50% satisfies the first class, however, it show up that the road were still vulnerable due snowing because over the 14% of the road being evaluated the fifth class. The functionality has been satisfied most of the road, however, It was vulnerable around Lake Daechung and Piban-ryung, Yumti-jae, Suriti-jae where on the way Boeun. Also, the fifth class road are about 35 km away from the city hall on distance, take an hour to an hour and a half. The fourth class road are about 25 km away from the city hall on distance, take 25 min to an hour. The other class of the road take in 30 min from the city hall or aren't affected of weather and have been analyzed that a density of road is high. In A result that compare between distribution and a housing density came out different the southern and the eastern area, so this result could be suggested quantitative data for possibility of development.

20대 남성용 스키니 진 팬츠 패턴개발을 위한 착의평가 및 패턴비교분석 (A Comparative Study on the Skinny Jean Pants Pattern and the Wearing Evaluation for Males in Their 20s)

  • 이성희;서추연
    • 한국의류학회지
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    • 제38권6호
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    • pp.873-886
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    • 2014
  • This study conducted a survey on jean pants that targeted males in the 20s in order to select preferred brands for skinny jean pants. Preliminary data for the pattern development of skinny jean pants was presented through functionality evaluation, appearance evaluation and pattern analysis. The results were as follows. 1. The result of survey targeting males in the 20s to select the design and brand name of jean pants showed that skinny jean pants were selected as the most favorite type of jean pants to wear; in addition, non-brand products and brand names such as Uniqlo and Levi's were also preferred. 2. The result of functionality evaluation showed that L brand received a high score in all items except for items regarding the knee circumference and mid-thigh circumference, S brand received a high score as well as a low score, and N brand received a low score in general. The result of appearance evaluation showed that L brand for the waist height and waist circumference, N brand for the brand crotch circumference, posterior crotch length and knee circumference, and S brand and N brand for the length of pants were preferred. 3. The result of pattern measurements analysis from the result of functionality evaluation showed that L brand provided a large pattern measurement for the waist height, L brand provided less ease due to small pattern measurements for waist circumference; in addition, N brand for the knee circumference and mid-thigh circumference were preferred. 4. The analysis result shows that a ease of 5cm based on the belly band which is 3.5cm below the belt width is proper for the waist circumference when designing a skinny jean pant pattern and 4cm for the hip circumference and 32.5cm for the ease of crotch circumference are proper, -0.4-0cm for the ease of mid-thigh circumference and knee circumference in consideration of human body measurements; therefore, 80.1-80.5cm for inseam as the length from the crotch height to the leg length, 25.7cm for vertical hip length and 53.0cm for crotch length are proper.

기업 정보 시스템의 평가를 위한 모형 (An Evaluative Framework for Business Information Systems)

  • 이국희
    • Asia pacific journal of information systems
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    • 제2권1호
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    • pp.17-33
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    • 1992
  • This paper provides a framework for evaluating business information systems. The framework identifies three evaluation domains: IS business value, IS expenses, and IS functionality. Discussions of each category encompass what to be measured, how to measure, and how to judge the measured value. Then, the framework classifies three categories of individual information systems based on IS life cycle: industry-common, industry-similar, and firm-specific. This categorization is used to match the role of an individual system with the focus of evaluation efforts. The framework can contribute to the systematic design of evaluation programs for business information systems.

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소매산의 높이와 신축성 유무에 따른 동작기능성에 관한 연구 - 여고생 여름 교복 블라우스를 중심으로 - (A Study on Improvement of Gesture Function according to the Sleeve's Height and Existence of Elastic - Focused on Female High School Student's Summer Blouses -)

  • 박길순;류신아
    • 복식문화연구
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    • 제17권6호
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    • pp.992-1008
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    • 2009
  • This study is to present a female high school summer blouse with high movement functionality and satisfying appearance. For the experimental research 6 subjects with closest average body shapes and their body surface was measured at beginning and after selecting a representative movement the tested uniform was worn and the appearance and movement functionality was evaluated. The results of this research are as follows. In the research with the aims to improve the sleeve designed the height in 3 types as A.H/4+3, A.H/4+2, A.H/4+1 and their evaluation showed that in the order of best appearance was A.H/4+2, A.H/4+1, A.H/4+3. In the order of best comfort was A.H/4+2, A.H/4+3, A.H/4+1 and the best order for movement functionality was A.H/4+1, A.H/4+2, A.H/4+3. Additional height types designed produced from elastic materials were A.H/4+3, A.H/4+2, A.H/4+1 and the resulting order of appearance was A.H/4+3, A.H/4+2, A.H/4+1, order of comfort was A.H/4+3, A.H/4+2, A.H/4+1 and the order of movement functionality was A.H/4+1, A.H/4+2, A.H/4+3. Integrating these results shows that in using the same concurrent materials, the experiment pattern of setting the sleeve height as A.H/4+2 was the best while in using elastic materials, the experiment pattern of setting the sleeve height as A.H/4+3 was the best.

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신체장애인의 주거만족도 평가 요소 도출에 관한 연구 (A Study on Deriving Evaluation Factors for Housing Satisfaction of the Physically Handicapped)

  • 박미영;소준영
    • 한국실내디자인학회논문집
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    • 제25권1호
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    • pp.201-212
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    • 2016
  • This study is a literature study aimed to derive the evaluation factors for the survey of housing satisfaction of the physically handicapped. To attain the objective, the present study compared the influential factors of housing satisfaction for normal people and those for the physically handicapped found in the precedent researches, and analyzed them to draw out the evaluation factors for housing satisfaction of the physically handicapped. And then it drew out sub-factors and elements for the housing satisfaction of the physically handicapped. The evaluation factors for housing satisfaction of the physically handicapped are divided mainly into physical, social-psychological and economic factors. First, physical factor consists of 'functionality (usability)', 'safety', 'convenience', 'comfort', 'aesthetics', 'accessibility (mobility)', 'identifiability (recognition)'. Of them, 'functionality (usability)' factor consists of 3 sub-factors and 8 elements. 'Safety' was subdivided into securing safety and public order/crime prevention. and structural safety, and 7 elements were drawn out from 'safety'. 'Convenience' is sub-categorized into convenient usage and simple operation, and 9 elements were derived. 'Comfort' was classified into 2 sub-factors and 9 elements. 'Aesthetics' was classified into 2 sub-factors and elements. 'Accessibility (mobility)' was divided into 2 sub-factors and elements. 'Identifiability (recognition)' was classified into 2 sub-factors and 5 elements. Second, social-psychological factor includes 'sociality' and 'independence' factor. One sub-factor and one element were drawn from each of both factors. Third, 'economic factor' consists of 'economy'. One sub-factor and elements were drawn out from the factor. It is expected that the 10 evaluation factors, their sub-factors and elements that have been derived from this study can be used as the basic data and/or reference in designing residential space for the physically handicapped and making policy for it after verifying them in following studies. The present study finds itself significance in that the findings here can ultimately improve the housing welfare and life quality of the physically handicapped.

국방 인사정보 S/W체계의 정량적 품질평가 연구 (A Study for DHRMIS S/W Quantitive Quality Evaluation)

  • 노승담;박대우
    • 한국컴퓨터정보학회논문지
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    • 제13권4호
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    • pp.273-280
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    • 2008
  • 본 논문은 국방 인사정보 S/W체계 개발에서 정량적 품질평가를 위한 것이다. ISO/IEC 9126에서 권고하는 국제표준에 입각한 정량적 품질평가방법을 적용한다. 계수적 평가의 6가지 기준을 제안하고 기능성, 신뢰성, 사용, 효율성, 유지보수성, 이식성과 세부 부특성 27항목을 설정하고, 품질 검사표는 S/W 품질을 측정하는 매트릭을 도표로 작성하였다. 국방사업의 특성을 반영한 우선순위에 의한 가중치를 주어 사용자의 목적에 맞는 국방 인사정보 S/W체계의 정량적인 평가방안을 연구하여 제시하였다. 정량적 품질평가적용에서 80%의 만족도와 현업 보직자 8명중 7명이 매우 만족(87.5%)과 1명은 만족(12.5%) 표시하여 신뢰성과 기능성에 대한 사용자의 만족도가 높은 것으로 판정되어 효율적인 국방 S/W사용과 효과를 분석하여 국방력의 향상에 기여하고자 한다.

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