• Title/Summary/Keyword: 선행 연구

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Prediction of Overflow Hazard Area in Urban Watershed by Applying Data-Driven Model (자료지향형 모형을 이용한 도시유역에서의 월류 위험지역 예측)

  • Kim, Hyun Il;Keum, Ho Jun;Lee, Jae Yeong;Kim, Beom Jin;Han, Kun Yeun
    • Proceedings of the Korea Water Resources Association Conference
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    • 2018.05a
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    • pp.6-6
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    • 2018
  • 최근 집중 호우로 인한 내수침수 피해가 도시화와 기후변화로 늘어나고 있다. 내수침수 피해로 인한 복구비용과 시간이 증가하고 있으며 향후에는 이보다 더 크게 늘어날 것으로 예상된다. 이러한 문제를 해결하기 위하여 충분한 선행시간을 가지고 내수 침수 구역을 제시할 수 있어야 한다. 기존의 물리적 모델은 정확하고 정교한 결과를 제공하지만, 시뮬레이션을 준비하고 마치는 데에 시간이 많이 소요된다. 그 이유로서는 강우량, 지형적 특성, 배수관망 시스템, 수문학적 매개변수 등의 다양한 데이터도 필요하기 때문이다. 이는 도시유역에 대한 내수침수의 실시간 예측이 어렵게 되었으며, 충분한 선행시간을 확보하지 못하는 원인이 되었다. 본 연구에서는 이 문제에 대한 해결책으로 결정론적 방법과 확률론적 방법을 자료지향형 모형으로 결합하여 해결책을 제시하고자 하며, 특정 강우 조건하에 도시유역에서의 내수침수에 영향을 미치는 맨홀에 대한 정보를 제공하고자 한다. 위와 같은 과정을 수행하기 위하여 입력자료 조합에 대한 비선형 분석을 실시하였으며, 그 결과로 특정 강우 조건에 대하여 각 맨홀에 대한 누적월류량을 예측할 수 있는 비선형 인공신경망을 구축할 수 있었다. 본 연구에서 제시된 방법론은 국내의 강남 배수분구에 대하여 적용이 되었으며, 내수침수 예측결과와 2차원 해석결과를 비교하고자 하였다. 본 연구에서는 위 과정을 통하여 1차원 도시유출해석을 위한 입력 자료를 준비하는 시간을 절약하고, 다양한 강우 조건과 내수침수지도 사이의 연관성을 학습하는 예측 모형을 이용하여 도시유역의 내수침수에 대한 충분한 선행시간을 확보하고자 한다. 결론적으로, 이 연구의 결과는 도시유역에 대한 비구조적 대책 수립에 도움을 줄 것으로 확인이 되며 도시 유역 내에 맨홀 위치들을 고려한 위험지구를 파악하는 데에 유용할 것으로 판단된다.

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Service Guarantee Influencing Customer Orientation in Tourist Hotel (관광호텔 서비스보증이 고객지향성에 미치는 영향)

  • Nam, Taeg-Yeong;Jee, Bong-Gu
    • The Journal of the Korea Contents Association
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    • v.21 no.3
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    • pp.419-429
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    • 2021
  • The purpose of this study is to investigate the effects of service guarantees of tourist hotels on employees' perception of role clarity and customer orientation. Specifically, this study analyzed how the employees' perception of role clarity as a parameter, with the employees' reliability, guarantee-related communication, guarantee limitation, and organizational support as independent variables, affected the dependent variable, customer orientation. As a result of empirical analysis of employees in the first grade hotel in Seoul, it was analyzed that the higher the reliability of employees in service guarantee, the higher the communication and organizational support in the organization related to guarantee work, the higher the role clarity and perception level of employees. The higher the reliability, guarantee limitation and organizational support level of guarantee, the higher the customer orientation, but the guarantee-related communication did not show significant influence. The perception degree of role clarity of employees has a significant effect on customer orientation. According to those results of this analysis, this study examined the influence of each configuration of service guarantee of tourist hotel employees on customer orientation, and presented various academic and practical implications.

The Study on the Antecedents and Consequences of Relationship Quality between Customer and Influencer (고객과 인플루언서의 관계품질(Hot IRQ, Cold IRQ)의 선행요인과 결과요인에 대한 연구)

  • Wu, Junfang;Kim, Sang-Hee
    • Journal of Convergence for Information Technology
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    • v.12 no.1
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    • pp.55-65
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    • 2022
  • This study examines the relationship between customer experience, customer-influencer relationship quality, and customer behaviors. This study employed questionnaire survey and collected 413 data. The structural equation modeling (SEM) method is used to test the hypotheses of the study. As a result of the study, it was found that among customer experiences, emotional experience had a greater effect on hot IRQ than cold IRQ, and cognitive experience had a greater effect on cold IRQ than hot IRQ. And it was found that hot IRQ had a greater effect on relationship retention intention than recommendation intention, and cold IRQ had a greater effect on recommendation intention than relationship maintenance intention. This study provides various implications both theoretically and practically by examining the relationship quality between customers and influencers.

Fashion attribute-based mixed reality visualization service (패션 속성기반 혼합현실 시각화 서비스)

  • Yoo, Yongmin;Lee, Kyounguk;Kim, Kyungsun
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2022.05a
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    • pp.2-5
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    • 2022
  • With the advent of deep learning and the rapid development of ICT (Information and Communication Technology), research using artificial intelligence is being actively conducted in various fields of society such as politics, economy, and culture and so on. Deep learning-based artificial intelligence technology is subdivided into various domains such as natural language processing, image processing, speech processing, and recommendation system. In particular, as the industry is advanced, the need for a recommendation system that analyzes market trends and individual characteristics and recommends them to consumers is increasingly required. In line with these technological developments, this paper extracts and classifies attribute information from structured or unstructured text and image big data through deep learning-based technology development of 'language processing intelligence' and 'image processing intelligence', and We propose an artificial intelligence-based 'customized fashion advisor' service integration system that analyzes trends and new materials, discovers 'market-consumer' insights through consumer taste analysis, and can recommend style, virtual fitting, and design support.

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A study on antecedents of relationship strength in a B2B environment: Focusing on export manufacturing corporations (B2B 관계강화에 영향을 미치는 선행요인에 관한 연구: 수출 제조기업을 중심으로)

  • Choi, Jong-Hwa;Lee, Hyun Ju;Kang, Gi-Du
    • International Commerce and Information Review
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    • v.16 no.4
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    • pp.3-34
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    • 2014
  • Nowadays to thrive on the intensively competitive environments based on drastic and rapid technical evolutions, exporting manufacturing companies need to keep very stable relationship with suppliers. Thus, analyzing key factors of strengthening relationship with suppliers in a B2B environment is important. In this regard, this study develops a research model to deeply understand key antecedents of relationship strength between B2B companies. Relationship quality was considered as the key factor affecting to the relationship strength. This study considers relationship satisfaction, trust, and relationship commitment as the factors of relationship quality. Moreover, technical service quality and relational service quality were considered to be the antecedents of relationship satisfaction, while communication and information exchange, relationship policies and practices, and opportunistic behavior were regarded as the antecedents of trust. The PLS method was applied for the empirical analysis of 107 companies data. The results indicated that the relationship commitment has a significant impact on relationship strength. Moreover, relationship satisfaction and trust had indirectly impact on relationship strength through relationship commitment. Although the quality of technical service quality had a significant impact on relationship satisfaction, relational service quality did not have a significant impact. While communication and information exchange, relationship policies, and practices had positively significant impacts, opportunistic behavior had a negative impact.

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Survival network based Android Authorship Attribution considering overlapping tolerance (중복 허용 범위를 고려한 서바이벌 네트워크 기반 안드로이드 저자 식별)

  • Hwang, Cheol-hun;Shin, Gun-Yoon;Kim, Dong-Wook;Han, Myung-Mook
    • Journal of Internet Computing and Services
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    • v.21 no.6
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    • pp.13-21
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    • 2020
  • The Android author identification study can be interpreted as a method for revealing the source in a narrow range, but if viewed in a wide range, it can be interpreted as a study to gain insight to identify similar works through known works. The problem found in the Android author identification study is that it is an important code on the Android system, but it is difficult to find the important feature of the author due to the meaningless codes. Due to this, legitimate codes or behaviors were also incorrectly defined as malicious codes. To solve this, we introduced the concept of survival network to solve the problem by removing the features found in various Android apps and surviving unique features defined by authors. We conducted an experiment comparing the proposed framework with a previous study. From the results of experiments on 440 authors' identified apps, we obtained a classification accuracy of up to 92.10%, and showed a difference of up to 3.47% from the previous study. It used a small amount of learning data, but because it used unique features without duplicate features for each author, it was considered that there was a difference from previous studies. In addition, even in comparative experiments with previous studies according to the feature definition method, the same accuracy can be shown with a small number of features, and this can be seen that continuously overlapping meaningless features can be managed through the concept of a survival network.

The Relationship between the Preceding Factors of Supply Chain Resilience, Supply Chain Resilience, and Business Performance (공급사슬 회복탄력성 선행요인과 공급사슬 회복 탄력성, 기업 경영성과 간의 관계)

  • Park, Chan-Kwon;Seo, Yeong-Bok
    • Korean small business review
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    • v.43 no.2
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    • pp.1-30
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    • 2021
  • This study is to analyze the relationship between supply chain resilience antecedent factors, supply chain resilience and business performance. Supply chain integration, risk management activity, and visibility were selected as the preceding factors of supply chain resilience, and the effect of these factors on agility and robustness as supply chain resilience, and the effects of agility and robustness factors on corporate management performance are studied. To this end, a survey was conducted on Korean manufacturing companies, and a total of 124 questionnaires were used for the study. As a result of the testing of the research hypothesis, supply chain integration, risk management activity, and visibility have a positive (+) significant effect on agility and robustness. In addition, agility had a positive (+) effect on corporate management performance. But robustness had a positive (+) effect on corporate management performance, but not significant. In order for manufacturing companies to secure supply chain resilience through such research hypothesis testing, it is necessary to secure supply chain integration, risk management activity, and visibility capabilities. It was confirmed that agility and visibility capability can be linked to corporate management performance. In addition, the overall relationship structure between the preceding factors of supply chain resilience, supply chain resilience, and business performance was presented.

로지스틱 회귀를 통한 경마의 입상확률모형

  • 유선경;박흥선
    • The Korean Journal of Applied Statistics
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    • v.13 no.1
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    • pp.35-43
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    • 2000
  • 본 연구에서는 우리 나라 경마의 실제자료를 이용하여 연승식 경마의 입상확률에 미치는 여러 가지 요인을 조사하였고, 이를 토대로 입상확률모형을 유도하여 보았다. 외국의 경우, 경마에 대한 통계적 접근이 다각적으로 시행되었지만, 기존의 선행방법이 배당금에 의한 입상확률에 근거를 하고 있는 반면, 본 연구에서는 경마장에서 쉽게 구할 수 있는 정보를 중심으로, 로지스틱 회귀를 이용한 방법을 시도해 보았다.

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The Selection and Evaluation Elements of Electronic Books (전자도서의 선택 및 평가 요소)

  • 최원태
    • Proceedings of the Korean Society for Information Management Conference
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    • 2003.08a
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    • pp.203-208
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    • 2003
  • 본 연구에서는 최근의 전자도서 관련 조직, 기술 등과 관련된 배경 지식을 기반으로 전자도서의 관련 추세를 분석하였다. 이러한 분석을 바탕으로 본 연구에서는 전자도서를 도입하는 경우 이와 관련된 여러 선행연구, 환경, 이슈를 조사하고 분석하고 전자도서의 선택 및 평가를 위한 고려 요소 및 기준을 살펴보았다.

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A Study on the Design of a Knowledge Base for the Korean Retrieval (우리말 문헌정보검색을 위한 지식베이스 설계에 관한 연구)

  • Chang, Jae-Gyong
    • Journal of the Korean Society for information Management
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    • v.3 no.1
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    • pp.70-102
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    • 1986
  • This study is an attempt to develop a knowledge base with Inference mechanism for document retrieval, which is the core element of expert system. The purpose of this study is to design the knowledge base in order to intellectually process user queries eventually improving the effectiveness of information retrieval, under the assumption that the user who wants to search a certain subject generally lack the prior knowledge about that subject. In this paper, some characteristics of Korean complex nouns are structurally analyzed and are represented in the knowledge base.

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