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A Process Perspective Event-log Analysis Method for Airport BHS (Baggage Handling System) (공항 수하물 처리 시스템 이벤트 로그의 프로세스 관점 분석 방안 연구)

  • Park, Shin-nyum;Song, Minseok
    • The Journal of Bigdata
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    • v.5 no.1
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    • pp.181-188
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    • 2020
  • As the size of the airport terminal grows in line with the rapid growth of aviation passengers, the advanced baggage handling system that combines various data technologies has become an essential element in order to handle the baggage carried by passengers swiftly and accurately. Therefore, this study introduces the method of analyzing the baggage handling capacity of domestic airports through the latest data analysis methodology from the process point of view to advance the operation of the airport BHS and the main points based on event log data. By presenting an accurate load prediction method, it can lead to advanced BHS operation strategies in the future, such as the preemptive arrangement of resources and optimization of flight-carrousel scheduling. The data used in the analysis utilized the APIs that can be obtained by searching for "Korea Airports Corporation" in the public data portal. As a result of applying the method to the domestic airport BHS simulation model, it was possible to confirm a high level of predictive performance.

Semantic-based Automatic Open API Composition Algorithm for Easier-to-use Mashups (Easier-to-use 매쉬업을 위한 시맨틱 기반 자동 Open API 조합 알고리즘)

  • Lee, Yong Ju
    • KIPS Transactions on Software and Data Engineering
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    • v.2 no.5
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    • pp.359-368
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    • 2013
  • Mashup is a web application that combines several different sources to create new services using Open APIs(Application Program Interfaces). Although the mashup has become very popular over the last few years, there are several challenging issues when combining a large number of APIs into the mashup, especially when composite APIs are manually integrated by mashup developers. This paper proposes a novel algorithm for automatic Open API composition. The proposed algorithm consists of constructing an operation connecting graph and searching composition candidates. We construct an operation connecting graph which is based on the semantic similarity between the inputs and the outputs of Open APIs. We generate directed acyclic graphs (DAGs) that can produce the output satisfying the desired goal. In order to produce the DAGs efficiently, we rapidly filter out APIs that are not useful for the composition. The algorithm is evaluated using a collection of REST and SOAP APIs extracted from ProgrammableWeb.com.

Challenges and Recent Movements in Scholarly Communication Concerning Electronic Journal Licensing Consortia (전자저널 컨소시엄을 둘러싼 학술커뮤니케이션의 쟁점과 대응동향)

  • Kim, Sung-Jin;Jung, Eun-Kyung;Han, Min-Hae
    • Journal of Information Management
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    • v.39 no.1
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    • pp.27-52
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    • 2008
  • Electronic information, especially e-journals took their position as core resources in current scholarly communication. However, the publishing and pricing structure of e-journal licensing process have not yet succeeded to be reorganized in accord with newly changed electronic scholarly communication environment. That resulted in a lot of challenges scholarly communication now faced. This study aimed to analyze key issues regarding big deal, pricing, licensing, archiving, copyright and public access by conducting comprehensive literature review and examining movements of world wide scholarly institutes and alliances. And then this study eventually purposed to draw some strategies which domestic libraries and consortia should take in order to lead current changes in scholarly communication.

A Study on Firm Survival Factors : Focusing on Korean Software Firms (기업의 생존요인 연구 : 국내 소프트웨어 기업을 중심으로)

  • Park, Gangmin;Kim, Jun Youn
    • Journal of Technology Innovation
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    • v.26 no.4
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    • pp.98-121
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    • 2018
  • This article analyzes the survival of Korean software firms from 1995 to 2015 by Cox regression model and product-limit method. The results show that survival rates are different for each sector: IT service, package software, game software and internet service. In addition, firm growth and investment in research and development positively affect software firm's survival, while slack resources negatively affect the software firm's survival. The implication of this study is that characteristics of the software industry and technologies should be taken into consideration in survival strategy of software firms and government policy. Previous research on survival analysis has been mainly conducted in the manufacturing industry or at the special circumstance such as the foreign exchange crisis of Korea in the late 1990s. The contribution of this study is that expanding the survival analysis to software firms in Korea which are becoming more important recently.

A Research on the Strategic Plan of Public Libraries in Urban-Rural Complex Area (도·농복합지역 공공도서관 발전 방안 연구 - 부산광역시 기장군을 중심으로 -)

  • Chang, Durk Hyun;Koo, Bon Jin
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.32 no.2
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    • pp.125-147
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    • 2021
  • Being one of the municipality belonging to a large metropolitan city, there are areas with a special environment of rural characteristics that are different from general urban areas. Gijang-gun of Busan Metropolitan City is a good example. Although it maintains the highest level of the number of patrons per public library and the number of books per capita in Busan, and is also promoting various projects to strengthen the knowledge and cultural competitiveness, in Gijang-gun, a Complex Area where rural and urban areas coexist, most of the resources are concentrated in urban areas, and cultural facilities that provide public services are lacking in relatively few rural areas. In this regard, this research strives to enhance the vision and strategy of the Gijang-gun's public libraries, reflecting the characteristics and needs of the patrons as viewed through their urban-rural complex environment.

A study on methods to reduce environmental load due to stone development- Focusing on Pocheon Art Valley - (건축용 석재개발에 따른 환경 부하 저감 방안에 관한 연구 - 포천 아트밸리를 중심으로 -)

  • Myong-Suk Suhr
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.1
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    • pp.711-716
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    • 2023
  • A large amount of stone is required as a high-end strategy for building new construction and remodeling work, and aggregates have to be collected from many stone mountains due to the lack of river sand and gravel required for concrete production. This study examines the case of development of stone materials for construction, conduct and analyze residents' attitudes, find out residents' thoughts on stone mountain development, develops the area as an alternative to the devastation caused by stone mountain development, and recycles it as an efficient resource. We intend to conduct basic research to propose a plan. As a result, Local residents have a lot of antipathy against the use of quarry, so it is necessary to use the area that is far from the residents' areas as a quarry. It was concluded that it was desirable to restore and develop in the right direction.

IaC-VIMF: IaC-Based Virtual Infrastructure Mutagenesis Framework for Cyber Defense Training (IaC-VIMF: 사이버 공방훈련을 위한 IaC 기반 가상 인프라 변이 생성 프레임워크)

  • Joo-Young Roh;Se-Han Lee;Ki-Woong Park
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.33 no.3
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    • pp.527-535
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    • 2023
  • To develop experts capable of responding to cyber security incidents, numerous institutions have established cyber training facilities to cultivate security professionals equipped with effective defense strategies. However, these challenges such as limited resources, scenario-based content development, and cost constraints. To address these issues, this paper proposes a virtual infrastructure variation generation framework. It provides customized, diverse IT infrastructure environments for each organization, allowing cyber defense trainers to accumulate a wide range of experiences. By leveraging Infrastructure-as-Code (IaC) containers and employing Word2Vec, a natural language processing model, mutable code elements are extracted and trained, enabling the generation of new code and presenting novel container environments.

Experience of Poverty Exit across Generations (빈곤의 세대간 탈피 경험)

  • Kim, Kyo-seong;Noh, Hye-jin
    • Korean Journal of Social Welfare Studies
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    • v.42 no.1
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    • pp.243-278
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    • 2011
  • The main purpose of this paper is to understand the process of the poverty exit across generations through the live experience based on the grounded theory analysis of the in-depth interview. We find that poverty means a lack of achievement and freedom of agency that is a level of control about resource and situation. So exit of poverty across generations is the state that is not only to achieve functioning but also to recover capabilities. Based on this result, central phenomena of the intergenerational exit process of poverty are support from relation and continuous transition at each stage in life. Even if this central phenomenon is an important event, it has the incomplete attribute. Because support from relation is beyond individual scope of control and participants can't escape second labor market as they don't have enough time in the process of transition. Therefore, this paper suggests that the expansion of state welfare and strategy should support transition as policy priorities to minimize limitation of relation and risk of income loss.

Evaluation Criteria of Biodiversity in Ecosystem Protected Areas - In Mt. Jiri and Mt. Bukhan National Parks - (생태계 보호지역의 생물다양성 평가지표 선정 및 적용 연구 - 지리산 및 북한산 국립공원을 중심으로 -)

  • Kang, Hae-In;Kang, Kyu-Suk
    • Journal of Environmental Impact Assessment
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    • v.27 no.2
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    • pp.114-123
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    • 2018
  • For conservation of biodiversity, we designate and manage the major areas that are habitats of organisms as ecosystem protected areas. It is necessary to evaluate the biodiversity of protected areas relatively in order to establish strategies to protect and secure the biodiversity of protected areas. In this study, we selected evaluation indicators by which we can compare objectively the biodiversity of protected areas corresponding to forest ecosystem, and applied them to Mt. Jiri and Mt. Bukhan National Parks. We reviewed literatures to select evaluation criteria. Frequently mentioned criteria and the structure of the forest which plays an importantrole of forest biodiversity were selected as the evaluation criteria. As the result, the selected evaluation indicators were 7-species diversity, species richness, evenness, rarity, disturbance species, indigenous species, and forest structure. In Mt. Jiri and Mt. Bukhan National Parks, species diversity were 3.492 and 2.943, species richness were 8.998 and 9.793, evenness were 0.849 and 0.680,rarity were 11.976 and 10.783, and disturbance species index were 0.214 and 0.357 respectively. Both national parks had abundant indigenous species and showed various forest physiognomies and stable 4-layer structure. It was found that crown density was higher in Mt. Jiri. Most indicators were implied high biodiversity in Mt. Jiri and Mt. Bukhan national parks.

선택 실험법을 이용한 친환경 보일러의 시장 점유율 예측

  • Kim, Mi-Jeong;Bae, Jeong-Hwan
    • Environmental and Resource Economics Review
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    • v.21 no.3
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    • pp.595-625
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    • 2012
  • Recently environment-friendly pellet boilers have interests as emissions of greenhouse gases are regulated internationally and energy security becomes more important to oil addicted countries including Republic of Korea. But the Korean market for pellet boilers is on the initial stage due to the high production costs relative to other conventional boilers. Hence the Korean government has supported financially and promoted the pellet boiler business. In this sense, it would contribute market stratergy and effective promotion policy for both of the government and private companies if we can forecast market shares of pellet boilers appropriately. For this purpose, this study surveyed potential consumers' preferences on pellet boilers among various alternatives using a choice experiment reflecting intangible costs. As the market share of new technology increases, intangible costs decline. According to different intangible cost scenarios, we experimented people's preferences on oil, gas, electric, and pellet boilers. A multinomial logit model was employed to estimate coefficient parameters of common attributes for various alternative boilers. Based on the estimates, we forecasted market shares of individual boilers. We found that as intangible costs decline, the market share of pellet boiler increase substantically while market shares of electric and gas boilers decrease dramatically. The market share of oil boiler did not change significantly. Meanwhile, as people are more rich, more educated, and exposed to advertisement on pellet boilers, the likelihood of choosing the pellet boiler increases.

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