• 제목/요약/키워드: Data gap analysis

검색결과 905건 처리시간 0.033초

A Big Data-Driven Business Data Analysis System: Applications of Artificial Intelligence Techniques in Problem Solving

  • Donggeun Kim;Sangjin Kim;Juyong Ko;Jai Woo Lee
    • 한국빅데이터학회지
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    • 제8권1호
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    • pp.35-47
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    • 2023
  • It is crucial to develop effective and efficient big data analytics methods for problem-solving in the field of business in order to improve the performance of data analytics and reduce costs and risks in the analysis of customer data. In this study, a big data-driven data analysis system using artificial intelligence techniques is designed to increase the accuracy of big data analytics along with the rapid growth of the field of data science. We present a key direction for big data analysis systems through missing value imputation, outlier detection, feature extraction, utilization of explainable artificial intelligence techniques, and exploratory data analysis. Our objective is not only to develop big data analysis techniques with complex structures of business data but also to bridge the gap between the theoretical ideas in artificial intelligence methods and the analysis of real-world data in the field of business.

Gap: A Study on the Influence of New Measurement Method on Consumers' Decision Making

  • Yang, Hoe-Chang;Cho, Hee-Young;Kim, Young-Ei
    • 유통과학연구
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    • 제15권1호
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    • pp.51-56
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    • 2017
  • Purpose - The study verified the effects of consumers' knowledge perception upon word-of-mouth intention and purchase intention of consumers who were exposed to a lot of information, and examined consumer's behavior from multi-dimensional points of view. Research design, data, and methodology - The study conducted the test of difference between consumer's cognition on importance and satisfaction of HMR product by gap of HMR (Home Meal Replacement) product for IPA analysis. The consumer's reliability and words-of-mouth were measured by the questionnaire method with 4 questions according to Likert 7-point scale. Conversion into z-score removed the difference of variables. Results - The causal relation model for importance, satisfaction and gap, not relying upon multi-dimensional scaling and others, could construct causal relation model to give implications. Difference (d) of the products could lessen consumer's reliability to increase consumer's knowledge perception, word-of-mouth intention, knowledge perception, and purchase intention. Therefore, enterprises should make an effort to lessen consumers' complaint for the products and to elevate consumers' reliability. Enterprises also try to give consumers exact information and to promote purchase intention. Conclusions - Difference (d) of consumers' complaint and/or disappointment decreased consumers' reliability to increase knowledge perception. Enterprises should supply consumers with products according to their requirements to minimize the gap and to give them proper information.

산재보험 재활사업 프로그램 질적 정보격차가 직무와 일상생활 만족에 미치는 영향 - 자존감의 매개효과 검정 (Influence of Qualitative Information Gap of Industrial Accident Compensation Insurance's Rehabilitation Programs on Satisfaction with Work and Daily Life. - Mediation Analysis of Self-esteem)

  • 심현진;이현실
    • 보건의료산업학회지
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    • 제10권1호
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    • pp.143-154
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    • 2016
  • Objectives : The aim of this study was to validated the effectiveness of the information gap in work and daliy life satisfaction. Additionally, this study attempted to verify the mediating effect of self-esteem. Methods : The study examined 327 students who participated in a study on the PSWCI 1st Wave by KCOMWEL. Data were analyzed through descriptive statistics using the reliability test in SPSS 22.0 Ver. Moreover, hypothesis testing was analyzed with covariance based on structure equation modeling (CB-SEM) using Amos 21.0 Ver. Results : The low information gap has a positive effect on satisfaction with work and daily life. Additionally, self-esteem also has a positive effect on each satisfaction measure. However, self-esteem does not have a mediating effect between information gap and each satisfaction measure. Conclusions : The results of the study found the factor of effect on effect factor on beneficiary's satisfaction of industrial accident compensation insurance. Therefore, new ways need to be found that reduce the information gap and increase self-esteem.

The Short-run and Long-run Dynamics Between Liquidity and Real Output Growth: An Empirical Study in Indonesia

  • JUMONO, Sapto;SOFYAN, Joel Faruk;SUGIYANTO, Sugiyanto;MALA, Chajar Matari Fath
    • The Journal of Asian Finance, Economics and Business
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    • 제8권5호
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    • pp.595-605
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    • 2021
  • The objectives of this research are to see if the phenomena of "demand following" and "supply leading" exist in the business cycle, as well as to look at how liquidity and output react to changes in credit risk, investment-saving gap, inflation, exchange rate, and growth rate of real national output. Employing quarterly data of Maluku and North Maluku (2008-2019), this study utilizes VAR/VECM for inferential analysis. This research found three important findings. First, liquidity and output growth influenced each other in the long run. Second, the determinants of output growth for Maluku are liquidity, investment-saving gap, and inflation, while the determinants of liquidity are output-growth, the gap of investment-saving, and inflation. Third, the determinants of output growth for North Maluku are liquidity, credit risk, investment-saving gap, inflation, exchange rate, and the national output-growth, while the determinants of liquidity are output-growth, credit risk, investment-saving gap, inflation, exchange rate, and national output-growth. The findings of this study supported the hypothesis of demand following and supply leading theory in the Maluku and North Maluku business cycles. This study concludes that economic development would improve if supported by liquidity adequacy through increased deposit growth.

대학 급식소의 성공적인 운영을 위한 필수관리요소 평가 : 서브퀄모델을 활용한 서비스품질관리 활동 평가 (Assessment of Main Management Components for Successful University Foodservice Operations By Using SERVQUAL Model)

  • 곽동경;장혜자
    • 대한영양사협회학술지
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    • 제3권2호
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    • pp.123-140
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    • 1997
  • The purpose of this study were to assess main management components that can lead to successful university foodservice operations. Specifically, it was intended to develop the tool which assesses the service quality, management, to assess the difference between customer importance from and perceptions of service quality, to compare management perceptions of customer importances with actual service delivery, and to identify internal problems which affect service quality with the use of gap model. Three types of questionnaires were developed and implemented for customers, foodservice personals and foodservice manager. Assessment tools were developed based on the literature review, SERVQUAL, GAP model, and the pilot study. Through the validity and reliability test, the questionnaires were revised. Questionnaires were distributed to 900 university students, 207 foodservice personnels, and 54 foodservice manager respectively. 831 university students, 177 foodservice personnels, and 48 foodservice manager were responded with a response rate of 92.3%, 85.5%, and 88.8% respectively. Statistical data analysis was completed using the SPSS programs for descriptive analysis, ANOVA. and SNK test. The results of this study can be summarized as follows : 1. In quality service management components, 31 quality service attributes were categorized and named into primary quality, secondary quality, hygiene, empathy, tangibles, reliability, responsiveness, and price by the factor analysis. 2. Importance mean score of customers was 4.02 out of 5, but perception mean score of customers was 2.55. So there was a relative big gap(1.47) between importance and perception scores, especially in three dimensions of responsiveness, primary quality, and hygiene. 3. It showed that customers' mean scores of perceived service quality by dimensions were the following order : price > reliability > secondary quality > hygiene > tangibles > primary quality > responsiveness > empathy. And the perception mean score of rented(2.59) or contracted(2.58) management was significantly higher than that of self-operated(2.48). 4. Customers' importances mean score which internal customers recognize was 4.23 out of 5, but service delivery mean score was 3.85. So there was a little gap(0.39) between management perceptions of customer importances and actual service delivery. 5. In gap model, SERVQUAL score showed -1.47, Gap 1 positive 0.15, gap 2 negative 0.61, and gap 3 was positive 0.19. 6. The internal problems were as follows : (1) The managers of University foodservice perceived well enough the customers' expectation value but their management competency was lacked in terms of responding customer needs, (2) The foodservice staff perceived service performance more highly than service quality specifications.

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실시간 공간 상황 분석을 위한 공간 데이터 스트림 처리 시스템 (A Spatial Data Stream Processing System for Spatial Context Analysis in Real-time)

  • 권오제;김재훈;이기준
    • Spatial Information Research
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    • 제18권1호
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    • pp.69-76
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    • 2010
  • 센서로부터 획득되는 데이터 스트림들 중에 특히 이동 객체에 대한 공간 정보를 담은 데이터 스트림은 상황 인지의 여러 응용 분야에 매우 유용하다. 하지만, 실시간으로 공간 스트림을 처리하는 것과 공간 상황 인지를 위한 복잡한 연산 처리 사이에는 중요한 기능적인 격차가 존재하는데, 이는 공간 스트림 처리와 상황 인지를 통합하는데 매우 큰 어려움을 준다. 본 논문에서는, 공간 스트림 처리와 공간 상황 인지 사이에 존재하는 기능적인 격차를 해결하기 위한 공간 데이터 스트림 처리 시스템인 SCONSTREAM(Spatial CONtext STREAm Management)를 제안한다. 본 논문에서 제안하는 시스템은 불필요한 공간 데이터 스트림을 전처리하고 상황 인지에 용이한 형태로 가공한다. 실험을 통해, 본 시스템이 공간 스트림 처리와 공간 상황 인지 사이에 존재하는 기능적인 격차를 해소할 수 있음을 보인다.

복지국가의 '자녀유무별 여성임금격차(Family gap)' 비교연구 : 가족정책과 노동시장구조의 영향을 중심으로 (A Comparative Study of family gap in Welfare States :The Role of family policy and labor market structure)

  • 허수연
    • 사회복지연구
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    • 제41권2호
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    • pp.279-308
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    • 2010
  • 본 연구는 '자녀유무별 여성임금격차(Family gap)' 의 국가별 차이를 가져오는 제도적 요인을 탐색하기 위해 OECD 14개국을 대상으로 가족정책, 노동시장 및 사회구조와 Family gap의 관계를 분석하는 것을 목적으로 한다. 이 때 가족정책을 여성의 노동역할을 지원하는 '고용지원 가족정책' 과 양육역할을 지원하는 '양육지원 가족정책' 으로 분류하여 각각이 가지는 정책적 지향에 따라 Family gap에 미치는 영향을 구분하였으며 노동시장 및 사회구조를 분석하기 위한 변수로 노동시장 성분절 구조, 임금불평등 구조, 여성의 사회적 지위와 경제적 상황을 모형에 포함하였다. 분석을 위하여 먼저 헤크만 2단계추정법(Heckman's two stage estimation)을 통해 국가별 Family gap 크기를 측정한 후 퍼지셋분석(FSQCA)을 통해 어떠한 제도적 조합이 낮은 Family gap을 가져오는지 검증하였다. 분석결과 낮은 Family gap은 '고용지원 가족정책' 의 발달과 '낮은 임금불평등 구조' 의 결합인과관계(conjunctual causation)에 의해 발생하는 것으로 나타났다. 분석결과를 통해 '자녀가 있는 여성' 의 양육으로 인한 불리함을 줄이고 상대적인 임금수준을 높이기 위한 제도적 노력으로 여성의 고용지속 및 양육의 사회화를 지원하고 여성과 남성 모두의 일-가족 양립을 지향하는 가족정책의 확충과 함께 낮은 노동지위에 있는 여성의 임금 및 고용조건의 보호가 우선과제가 된다는 정책적 함의를 제시하였다.

드론 영상의 차량 레이블링을 통한 간선도로 차간간격(GAP) 산정 (GAP Estimation on Arterial Road via Vehicle Labeling of Drone Image)

  • 진유진;배상훈
    • 한국ITS학회 논문지
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    • 제16권6호
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    • pp.90-100
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    • 2017
  • 본 연구에서는 기존 지점 및 구간 검지체계의 한계를 극복하기 위한 방편으로 드론 촬영영상을 활용하여 차량을 검지 및 레이블링 하고 이를 기반으로 도심부 간선도로상 차간간격을 산정하는 것을 목적으로 한다. 드론 영상 데이터 획득 시 적정 시간대, 위치, 고도를 선정하기 위하여 여러 조건하에서 촬영을 실시하여 최종 영상 데이터를 획득하였다. 다양한 영상분석기법 중 혼합 Gaussian, 영상 이진화, 모폴로지 기법을 적용시켜 차량을 검지하였고 칼만 필터를 적용하여 차량을 레이블링 하였다. 레이블링율 분석 결과 실제 차량 수 285대 중 185대를 검지함으로써 차량 레이블링율은 65%로 나타나는 것을 확인하였다. 차간간격은 픽셀 단위화를 통해 산정하였으며, 결과는 다음 지도와의 비교 분석을 통해 검증을 수행하였다. 검증 결과 차간간격 오차가 모두 5m 미만으로 나타났으며 평균 오차는 선행차량과의 차간간격은 1.67m, 후행차량과의 차간간격은 1.1m로 분석되었다. 본 연구에서 산출된 차간간격은 도심부 도로의 밀도, 서비스 수준 판단 기준 설정 등으로 활용될 수 있을 것이다.

STEP을 이용한 유한요소해석 정보모델 구축 (Information Modeling for Finite Element Analysis Using STEP)

  • 최영;조성욱;권기억
    • 한국CDE학회논문집
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    • 제3권1호
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    • pp.48-56
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    • 1998
  • Finite element analysis is very important in the design and analysis of mechanical engineering. The process of FEA encompasses shape modeling, mesh generation, matrix solving and post-processing. Some of these processes can be tightly integrated with the current software architectures and data sharing mode. However, complete integration of all the FEA process itself and the integration to the manufacturing processes is almost impossible in the current practice. The barriers to this problem are inconsistent data format and the enterprise-wise software integration technology. In this research, the information model based on STEP AP209 was chosen for handling finite element analysis data. The international standard for the FEA data can bridge the gap between design, analysis and manufacturing processes. The STEP-based FEA system can be further tightly integrated to the distributed software and database environment using CORBA technology. The prototype FEA system DICESS is implemented to verify the proposed concepts.

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프랜차이즈 가맹점의 계약전 기대와 운영후 지각된 성과의 업종별 차이분석 (A Comparative Study on Differences between Expectation before Contracting and Perceived Performance after Operation of Relationship Orientation among Franchise Industry Types)

  • 양인석;안성훈;이용기
    • 한국프랜차이즈경영연구
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    • 제1권1호
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    • pp.1-17
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    • 2010
  • 프랜차이즈 가맹점의 계약 전 기대와 운영 후 지각된 성과에 대한 부정적 차이인식(gap)의 정도가 커지면 분쟁의 원인으로 발전할 수 있는데, 이는 근본적으로 가맹본부가 신규 가맹점 모집에 급급한 나머지 계약전 기대를 너무 높게 만들어 운영 후 지각된 성과와의 부정적 차이인식(gap)이 커지면서 발생하는 경우가 높다고 볼 수 있다. 따라서 본 연구에서는 가맹본부의 관계지향성에 대한 가맹점의 계약 전 기대와 운영 후 지각된 성과의 차이인식(gap)을 통해 가맹본부의 관계지향성에 대한 가맹점의 만족도를 간접적으로 측정하고, 관계지향성에 대한 차이인식(gap)이 프랜차이즈 업종별로 어떻게 다르게 나타나는지 알아보고자 한다. 본 연구의 실증분석 결과, 관계지향성에 대한 차이인식(gap) 평균이 모두 음(-)으로 나타난 것은 운영 후 지각된 성가가 계약 전 기대보다 낮다는 것을 의미하는 것으로, 가맹점 계약 전 기대관리의 필요성과 함께 프랜차이즈 업종별로 관계지향에 대한 차이인식(gap)이 다르게 나타났다는 것을 밝혔다는 데에서 그 의의를 찾을 수 있다. 이런 점들로 볼 때, 프랜차이즈는 가맹본부와 가맹점 간의 계약관계에 의해서 유지되는 시스템으로 지속적인 관계를 유지하기 위해서는 많은 노력과 함께 기대관리가 필요하다.