• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2009년도 추계학술발표대회
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• pp.917-918
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• 2009

This study evaluated the level of performance improvement in the form of a simulated experiment by adding fixed node in the middle of the network as a way to improve mobile ad.hoc network performance. The result showed that the performance level was much higher when fixed node was used together than when mobile node was used only, and the comparison of the mobile speed of mobile node also showed that use of fixed node together had higher performance. Moreover, the evaluation in accordance with the number of fixed node showed that more number of fixed node had shorter time delay. Further study following this on how many fixed node should be added on the ad.hoc network will ensure establishment of more reliable ad.hoc network.

• 한국도서관정보학회지
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• 제50권4호
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• pp.511-537
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• 2019

최근 공공도서관에서 복합문화공간화가 이루어지고 있는 시점에서, 본 연구는 공공도서관 복합문화공간 이용요인에 관한 이용자의 중요도-만족도 인식을 분석하였다. 분석결과를 기반으로 도서관 이용자의 복합문화공간 이용 차원에 대한 이해를 넓히고, 어떤 요소에 더 중점을 두고 개선해야 하는지에 대한 방향성을 제시하고자 하였다. 연구결과는 다음과 같다: 첫째, 현재 41개의 도서관 복합문화공간요인 중 5개 항목에서만 중요도에 비해 만족도가 높게 나타나 특정 부문이 아닌 우선적인 개선 부분을 중점으로 균형 있는 발전을 도모할 필요가 있다. 둘째, 도서관 복합문화공간의 이용자들은 혼자(42%) 또는 가족(18.2%)과 함께 주로 이용하며 주말 오전과 오후를 포함한 이용자 수(35%)보다 평일 오후에 이용하는 사람(50.5%)이 더 많다는 점 등의 방문 특성을 고려하여 다양한 프로그램과 서비스들을 제공할 필요가 있다. 셋째, 공간과 관련한 5개의 이용요인 중 '컴퓨터/장비 사용의 구비성'을 제외한 나머지 항목이 중요도와 만족도가 모두 높게 나타나는 1사분면 또는 중요도에 비해 높은 만족도를 나타내는 4사분면에 위치하고 있다. 이는 도서관이 복합문화공간으로서 기본적으로 지향하는 공간의 다양화 및 복합화를 충분히 수행하고 있음을 보여주는 결과이다. 넷째, IPA분석을 적용한 도서관 복합문화공간 이용요인에 관한 중요도-만족도 차이 분석 결과를 바탕으로 향후 도서관 복합문화공간을 개선할 필요가 있다.

• 한국통신학회:학술대회논문집
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• 한국통신학회 2006년도 하계종합학술발표회 논문 초록집
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• pp.569-569
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• 2006

• 한국시뮬레이션학회논문지
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• 제19권1호
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• pp.83-90
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• 2010

본 논문에서는 콘텐츠 명성 및 사용자 명성 평가를 통해 신뢰성 높은 UCC 검색을 가능하게 하는 방법에 대해 기술한다. 기존 정보검색과 달리 UCC에서는 얻을 수 있는 텍스트 정보가 한정적이기 때문에 텍스트 외적인 정보의 사용이 필요하다. 콘텐츠 명성과 사용자 명성은 비텍스트 정보를 이용하여 평가되는데, 평가된 명성을 자질로 사용하여 UCC 검색을 수행하면 기존 검색 방법보다 향상된 검색 성능을 기대할 수 있다. 콘텐츠 명성은 영상 자체 정보와 영상과 관련된 소셜활동 정보로부터 콘텐츠의 명성, 즉 가치를 평가한다. 또한 사용자 명성은 콘텐츠와 사용자, 사용자와 사용자 사이의 소셜활동 하나하나에 주목하여 네트워크를 구축하여 사용자의 명성을 평가한다. 각각의 명성을 평가하여 UCC 검색에 사용하는 두 개의 시스템을 구현하고, 유튜브로부터 수집한 UCC와 사용자 정보를 이용하여 두 시스템의 비교 실험을 수행하였다. 실험 결과, 콘텐츠 명성을 활용한 시스템에서 조금 더 높은 사용자의 동의를 이끌어 낼 수 있었으며, 이 결과는 향후 UCC 검색에 활용할 수 있을 것이라 기대된다.

• 한국도서관정보학회지
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• 제40권1호
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• pp.47-71
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• 2009

공공도서관의 사명은 정보이용, 문화활동, 평생교육 등과 관련된 지역주민의 요구를 충족시키고 보다 편리하고 평등한 접근을 제공함으로써 지역사회 발전과 지역주민의 삶의 질을 향상시키는데 있다. 본 연구는 이러한 공공도서관의 사명을 달성하고 성과를 제고할 수 있는 성과지표 모형을 개발하고자 학습 및 성장 관점, 내부 프로세스 관점, 자원 관점, 이용자 관점의 4가지 관점 아래 12개의 주요성공요인, 36개의 핵심성과지표로 구성된 BSC 기반 공공도서관 성과지표 모형을 도출하고, 공공도서관 사서를 대상으로 도출된 성과지표 모형의 상대적 가중치를 산정하여 공공도서관의 사명달성과 성과제고에 어떠한 성과지표가 중요한지를 분석한 연구이다.

• 한국정보시스템학회지:정보시스템연구
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• 제10권2호
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• pp.165-192
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• 2001

Knowledge Management (KM) is the systematic, explicit, and deliberate building, renewal, and application of knowledge to maximize an enterprise's knowledge-related effectiveness and performance from its knowledge assets. KM applies systematic approaches to find, understand, and use knowledge to create new capabilities, solve problems, enable superior performance, and encourage innovation. The purpose of this research is to identify the relationship of KM capabilities (KM infrastructures and KM processes) and organizational effectiveness and performance. An empirical research of the relationship of knowledge management capabilities and organizational effectiveness and performance is conducted from the information systems and knowledge management literature in order to access the following questions: (1) Does the knowledge management infrastructure contribute to the organizational effectiveness and peformance? (2) Does the knowledge management process contribute to the organizational effectiveness and peformance? The research design employs a mail survey questionnaire for gathering data from 500 firms in a number of industries. From a mail survey of 61 top managers of knowledge management, the results of empirical analyses provide the following major findings: (1) While the external effectiveness of organization is influenced by the cultural infrastructure of knowledge management, the overall performance of organization is influenced by the structural infrastructure of knowledge management. (2) While the external effectiveness of organization is influenced by the application and protection processes of knowledge management, the overall performance of organization is influenced by the knowledge acquisition process of knowledge management.

• Journal of information and communication convergence engineering
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• 제17권3호
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• pp.191-197
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• 2019

Morphological analysis is used for searching sentences and understanding context. As most morpheme analysis methods are based on predefined dictionaries, the problem of a target word not being registered in the given morpheme dictionary, the so-called unregistered word problem, can be a major cause of reduced performance. The current practical solution of such unregistered word problem is to add them by hand-write into the given dictionary. This method is a limitation that restricts the scalability and expandability of dictionaries. In order to overcome this limitation, we propose a novel method to automatically expand a dictionary by means of use-case analysis, which checks the validity of the unregistered word by exploring the use-cases through web crawling. The results show that the proposed method is a feasible one in terms of the accuracy of the validation process, the expandability of the dictionary and, after registration, the fast extraction time of morphemes.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2022년도 제65차 동계학술대회논문집 30권1호
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• pp.191-194
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• 2022

This article aims to study the influence of the motivation and resistance of mobile payment on the willingness of elderly users to use it. A model for the willingness to use mobile payment is constructed based on the UTAUT model, using elderly people in China and South Korea as the research subjects. We found the following conclusions after analyzing the data with SPSS and AMOS, In general, social influence and performance expectations are the biggest drivers for mobile payment adoption among seniors, while perceived risk and cost are the biggest obstacles. This research can provide useful recommendations for the formulation of corporate strategies and provide new development directions and enlightenments for mobile payment companies.

• Journal of Information Technology Applications and Management
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• 제18권4호
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• pp.119-130
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• 2011

When an organization adopts new technology, performance through the technology is expected to be decided depending on attitudes of the members, in that technology produces performance only if the members zealously use it. Therefore, the members need to devote themselves to acquire and use the new technology. This attitude of members is called "IT acceptance will" (Ranarajan et al., 2005), and this research is to examine the effect of an individual's "IT acceptance will" on performance. Thus, this research analyzes what increases IT acceptance will and what effect IT acceptance will has on stress due to uncertainty of an organization-job complexity and role conflict- through new IT adoption. This research conducted a survey from July to September in 2009, targeting employees of government offices and public institutions in Kyunggi and Kyungnam provinces. Then, a total of 370 was collected and the final 344 was selected for our research analysis. As a result, this research found out that personal innovation and client orientation improved an individual's IT acceptance will, which improved performance through new IT adoption. However, the new IT adoption also increased job complexity and role conflict, but negative effects of stress on performance was not found as IT adoption will diminished the stress. Based on this result, this research discussed practical and academic implications and the limitations.

• 한국병원경영학회지
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• 제19권4호
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• pp.45-56
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• 2014

Purpose: This study aims to explore the effects of personal characteristics, satisfaction, quality of care, role performance, image, awareness level of public hospitals perceived by community residents on use-experience of public hospitals. Methods: A cross-sectional survey was conducted with 2,100 community residents around 39 district public hospitals. The questionnaire was designed to collected information on personal characteristics and community awareness of public hospitals. The community awareness consists of 5 factors and 15 items. The data were collected utilizing call-interview by a survey company. Results: The personal characteristic and community awareness were shown significant differences between having use-experience and not-having use-experience of public hospitals (p<.001), except gender. As the results of multiple logistic regression, the significant variables of use-experience of public hospitals were satisfaction (OR=1.06 95%CI=1.010-1.116), quality of care (OR=1.07, 95%CI=1.016-1.134, level of awareness to public hospitals (OR=1.50, 95%CI=1.378-1.632), age (OR=0.43, 95%CI=0.236-0.785), education (OR=1.62, 95%CI=1.013-2.590), type of medical security (OR=0.37, 95%CI=0.142-0.945). Conclusions: Public hospitals have to effort to improve community awareness through providing quality of care, and role performance. It is possible to support them by the Central and Local Government.