• 한국컴퓨터정보학회논문지
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• 제21권4호
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• pp.63-71
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• 2016

This paper is about applying efficient data mining method which improves the score calculation and proper building performance of credit ranking score system. The main idea of this data mining technique is accomplishing such objectives by applying Correlation based Feature Selection which could also be used to verify the properness of existing rank scores quickly. This study selected 2047 manufacturing companies on KOSPI market during the period of 2009 to 2013, which have their own credit rank scores given by NICE information service agency. Regarding the relevant financial variables, total 80 variables were collected from KIS-Value and DART (Data Analysis, Retrieval and Transfer System). If correlation based feature selection could select more important variables, then required information and cost would be reduced significantly. Through analysis, this study show that the proposed correlation based feature selection method improves selection and classification process of credit rank system so that the accuracy and credibility would be increased while the cost for building system would be decreased.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1996년도 하계학술대회 논문집 B
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• pp.800-803
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• 1996

This paper proposes the algorithm to solve emergency service restoration problems using efficient reconfiguration method in distribution system. In this algorithm, we try to avoid the blackout of important loads by considering service rank. It is possible to reconfigurate the system by using fuzzy inference results in which was reflected the expected distribution power, line capacity and service rank. A 27-bus, 32-branch model system is used to demonstrate the effectiveness of the proposed algorithm.

• 재활간호학회지
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• 제4권1호
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• pp.94-104
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• 2001

The purpose of this study was to analysis of nursing interventions performed by the ICU nurses to the patients with cerebrovascular disorder practically from one university hospital in Seoul. The data were collected from 15 nurses with 86 cerebrovascular disorder cases from one ICU with the questionaire to write frequency of nursing care done by the surveyee from May, 2, 2000 to July, 3, 2000 and the list of 66 nursing interventions selected out of 433 NIC(Nursing Interventions Classification) of Iowa University which were translated into Korean (44 items) and core nursing interventions by ICU nurses (22 items; KIm, Su-Jin, 1997). The data were analysed with SPSS program. The results are as follow : 1. The most frequently used nursing interventions were vital sign monitoring, fall prevention, cerebral edema management, dysreflexia management, neurologic monitoring, cardiac care, communication enhancement, technology management, bed rest care, respiratory monitoring in rank. 2. The most frequently used nursing intervention domains were 'Physiological : Complex', 'Physiological : basic', 'Behavior', 'Safty', 'Health system' in rank. In the domain of physiological : basic, the most frequently used nursing interventions were bed rest care, urinary elimination management, tube care : urinary, physical restraints in rank. In the domain of physiological : complex, the most frequently used nursing interventions were cerebral edema management, dysreflexia management, neurologic monitoring, cardiac care in rank. In the domain of behavior, the most frequently used nursing interventions were communication enhancement, touch, active listening in rank. In the domain of safty, the most frequently used nursing interventions were vital sign monitoring, fall prevention in rank. In the domain of health system, the most frequently used nursing interventions were technology management, specimen management in rank. 3. some difference of the frequency practicing the nursing interventions according to the shift of duties was found. For example, medication administration was common at day duty, touch was practiced at evening duty, temperature regulation was performed.

• 실천공학교육논문지
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• 제15권2호
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• pp.509-517
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• 2023

TextRank 알고리즘을 활용한 연관 단어 추천 시스템과 사용자가 선택한 단어 기반 아이디어 생성 서비스를 반응형 웹으로 제공한다. 연관 단어 추천 시스템에서는 TextRank 알고리즘을 이용한 단어별 가중치 부여 방법 및 SoftMax를 적용한 확률 출력 방법을 논한다. 아이디어 생성 서비스에서는 mini-GPT를 이용한 아이디어 생성 방법과 인공지능 강화학습 방법에 대해 논한다. 반응형 웹에 대해서는 React와 Spring Boot, Flask 간의 연동 과정에 대해 논하며 전체적인 구동 방식에 대해 서술한다. 사용자가 원하는 주제를 입력하면 연관된 단어를 제공한다. 사용자는 연관된 단어를 선택하거나 원하는 단어를 추가하여 마인드맵을 구성한다. 사용자가 구성된 마인드맵에서 조합할 단어를 선택하면 새로 생성된 아이디어와 그와 연관된 특허를 제공한다. 본 웹서비스는 생성된 아이디어에 대해 다른 사용자와 공유할 수 있으며, 별점으로 사용자 피드백을 받아 인공지능을 개선한다.

• 대한교통학회지
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• 제20권6호
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• pp.81-98
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• 2002

본 연구는 Wilcoxon Rank Sum Test 기법을 이용한 자동 돌발상황 검지 모형을 개발하는 것이다. 본 연구의 수행을 위하여 고속도로에 설치된 루프 차량 검지기(Loop Vehicle Detection System)에서 수집된 점유율 데이터를 사용하였다. 기존의 검지모형은 산정하기가 까다로운 임계치에 의하여 돌발상황을 검지하는 방식이었다. 반면 본 연구 모델은 위치와 시간대 교통 패턴에 관계없이 모형을 일정하게 적용하며, 지속적으로 돌발상황 지점과 상·하류의 교통패턴을 비교 검정 기법인 Wilcoxon Rank Sum Test 기법을 사용하여 돌발상황 검지를 수행하도록 하였다. 연구모형의 검증을 위한 테스트 결과 시간과 위치에 관계없이 정확하고 빠른 검지시간(돌발 상황 발생 후 2∼3분)을 가짐을 알 수 있었다. 또한 기존의 모형인 APID, DES, DELOS모형과 비교검증을 위하여 검지율 및 오보율 테스트를 수행한 결과 향상된 검지 능력(검지율 : 89.01%, 오보율 : 0.97%)을 나타남을 알 수 있었다. 그러나 압축파와 같은 유사 돌발상황이 발생되면 제대로 검지를 하지 못하는 단점을 가지고 있으며 향후 이에 대한 연구가 추가된다면 더욱 신뢰성 있는 검지모형으로 발전할 것이다.

• 정보보호학회논문지
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• 제29권5호
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• pp.1007-1017
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• 2019

현재 대부분의 생체인증 시스템은 단일 생체정보를 이용하여 사용자를 인증하고 있는데, 이러한 방식은 노이즈로 인한 문제, 데이터에 대한 민감성 문제, 스푸핑, 인식률의 한계 등 많은 문제점들을 가지고 있다. 이를 해결하기 위한 방법 중 하나로 다중 생체정보를 이용하는 방법이 제시되고 있다. 다중 생체인증 시스템은 각각의 생체정보에 대해서 information fusion을 수행하여 새로운 정보를 생성한 뒤, 그 정보를 활용하여 사용자를 인증하는 방식이다. Information fusion 방법들 중에서 score-level fusion 방법을 보편적으로 많이 사용한다. 하지만 정규화 작업이 필요하다는 문제점을 갖고 있고, 데이터가 같아도 정규화 방법에 따라 인식률이 달라진다는 문제점을 갖고 있다. 이에 대한 대안으로 정규화 작업이 필요 없는 rank-level fusion 방법이 제시되고 있다. 하지만 기존의 rank-level fusion 방법들은 score-level fusion 방법보다 인식률이 낮다. 이러한 문제점을 해결하기 위해 상관계수를 이용하여 score-level fusion 방법보다 인식률이 높은 rank-level fusion 방법을 제안한다. 실험은 홍채정보(CASIA V3)와 얼굴정보(FERET V1)를 이용하여 기존의 존재하는 rank-level fusion 방법들의 인식률과 본 논문에서 제안하는 fusion 방법의 인식률을 비교하였다. 또한 score-level fusion 방법들과도 인식률을 비교하였다. 그 결과로 인식률이 약 0.3%에서 3.3%까지 향상되었다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
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• pp.105-108
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• 1997

This paper proposes a new approach of balanced model reduction using matrix pencil. The algorithm presented in this paper is to convert full-rank high-order system into rank-deficient system using perturbation made by matrix pencil method. Then the system can be truncated to a low-order system that we want via balanced realization. We discuss the comparison with other methods and the various observations by simulations.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2000년도 춘계공동학술대회 논문집
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• pp.445-448
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• 2000

Researches about an evaluation system for military officers have been studied because it is one of the most important elements for managing units and improving combat power. This paper proposes an evaluation system that enhance justice of evaluation, accomplish a distintion among evaluating elements and improve synergy effects between higher level officers and lower level officers. The evaluation system in this study not only suggests evaluating items and methods but also determines the final evaluation ranking among the evaluated that have their own evaluation criteria, items and duties using the median rank method used in statistics.

• 한국의류산업학회지
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• 제8권5호
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• pp.523-529
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• 2006

The purpose of this study is to investigate the costumes of the ruling class in the Asuka-Nara Period by looking at the change in the clothing law of the era. During the Asuka-Nara period, various cultures such as Buddhism, architecture, sculpture, paintings, music, and so on were introduced through vigorous exchange with Chosun and Tang. Contrary to the primitive-Kohun Period, the regulation about costumes was enacted as law in the Asuka-Nara Period this fact tells us that there was high interest in clothing. Frequent reorganization of clothing law had to do with the rank system of Japan as well as with the exchange with other countries. The clothing law of Asuka-Nara Period was mostly consisted of the regulations about costumes of the ruling class including the royal family and government officials. The law regulated different coronet and color for the clothing depending on the different rank of the government officials. The more classified the rank was, the more varied color was used. In addition, there was a variety in the costumes system; 2 piece clothing of the Kohun Period was continuously used while new types of clothing were also introduced. The royal family members and government officials wore different types of clothing such as Yebok, Jobok, and Jebok, depending on time, place, or the purpose of occasion. The costumes of this period could be inferred from the analysis of the relics.

• 전기학회논문지
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• 제56권7호
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• pp.1309-1314
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• 2007

The assignment of cells to reporting or non-reporting cells is an NP-hard problem having an exponential complexity in the Reporting Cell Location Management (RCLM) system. Frequent location update may result in degradation of quality of service due to interference. Miss on the location of a mobile terminal will necessitate a search operation on the network when a call comes in. The number of reporting cells and which cell must be reporting cell should be determined to balance the registration (location update) and search (paging) operations to minimize the cost of RCLM system. T1is paper compares Max-Min ant system (MMAS), rank-based ant system (RAS) and hybrid method of MMAS and RAS that generally used to solve combinatorial optimization problems. Experimental results demonstrate that hybrid method of MMAS and RAS is an effective and competitive approach in fairly satisfactory results with respect to solution quality and execution time for the optimal design of location management system.