• 한국정보과학회논문지:소프트웨어및응용
• /
• 제33권8호
• /
• pp.718-729
• /
• 2006

일정 분야의 문서들에서 그 분야 특정을 반영하는 전문용어를 자동으로 인식하는 연구에 대한 관심이 증가하고 있다. '전문용어 인식'은 문서에서 전문용어가 될 수 있는 언어적 단위를 파악하는 '용어 추출' 과정과 '용어추출' 과정에서 얻어진 용어목록 중 해당분야의 전문용어를 고르는 '전문용어 선택' 과정으로 구성된다. '전문용어 선택' 과정은 용어목록을 전문용어의 특정에 따라 순위화한 후 타당한 전문용어를 파악하는 작업으로 정의된다. 따라서 전문용어 선택 문제는 용어목록의 순위화 작업과 순위화된 목록에서 전문용어와 비전문용어 간의 경계를 인식하는 작업으로 정의된다. 기존의 전문용어 선택 기법은 주로 용어의 빈도수 등과 같은 통계적 특정만을 이용하였다. 하지만 통계적 특정만으로는 효과적으로 전문용어를 선택하기 어렵다. 본 논문의 논제는 전문용어 선택에서 다양한 전문용어의 특정을 고려하고 이들 중 전문용어 선택에서 효과적인 특정을 찾으려는 것이다. 순위화 문제는 다양한 전문용어 특정을 도출하고 이들을 기계학습방법으로 통합하여 해결한다. 경계인식 문제는 전문용어와 비전문용어의 이진 분류 문제로 정의하고 기계학습방법으로 해결한다. 본 논문의 기법은 경계인식측면에서 78-86%의 정확률과 87% -90%의 재현율을 나타내었으며, 순위화 측면에서 89%-92%의 11포인트 평균정확률을 나타내었다. 또한 기존 연구보다 최고 26% 의 성능향상을 보였다.

• Nuclear Engineering and Technology
• /
• 제40권4호
• /
• pp.277-284
• /
• 2008

Recently, the long-term operation of a nuclear power plant beyond its licensed term has become a worldwide trend as long as the safety of the plant is maintained in the extended period. Kori Unit 1, the oldest PWR in Korea, is the foremost example of this type of long-term operation in Korea. Comprehensive technical evaluation of the long-term operation of this plant was completed to confirm the overall safety of the plant. The technical evaluation included a review of PSR results, an assessment on aging management programs and time limited aging analyses, and a statement of radiological impact on the environment. Based on all of the results of the technical evaluation activities, Kori Unit 1 was approved to operate for an additional 10 years beyond its original design life of 30 years.

• Smart Structures and Systems
• /
• 제29권3호
• /
• pp.433-444
• /
• 2022

Concrete is a most utilized material in the construction industry that have main components. The strength of concrete can be improved by adding some admixtures. Evaluating the impact of fly ash (FA) and silica fume (SF) on the long-term compressive strength (CS) of concrete provokes to find the significant parameters in predicting the CS, which could be useful in the practical works and would be extensible in the future analysis. In this study, to evaluate the effective parameters in predicting the CS of concrete containing admixtures in the long-term and present a fitted equation, the multivariate adaptive regression splines (MARS) method has been used, which could find a relationship between independent and dependent variables. Next, for optimizing the output equation, biogeography-based optimization (BBO), particle swarm optimization (PSO), and hybrid PSOBBO methods have been utilized to find the most optimal conclusions. It could be concluded that for CS predictions in the long-term, all proposed models have the coefficient of determination (R²) larger than 0.9243. Furthermore, MARS-PSOBBO could be offered as the best model to predict CS between three hybrid algorithms accurately.

• 기술경영경제학회:학술대회논문집
• /
• 기술경영경제학회 1997년도 제12회 동계학술발표회 논문집
• /
• pp.177-196
• /
• 1997

The engineering industry plays an important role for national competitive, since it has an high impact on other industries. With its importance, the engineering industry development largely depends on its technical manpower ather than capital factor. This study aims at estimating the additional requirement on technical manpower based on the forecasted market size which represents the structure change corresponding to economic growth in related industry. Research scope includes the twelve of fifteen field except three with insufficient historical data and technical manpower above bachelor degree. Specialty, we forecast market size with determinants resulted from historical data analysis on each field. The demand on technical manpower is derived from the forecasted market. We also estimate an additional requirement with the supply analysis. The research results show different patterns over time period. The relative ratio on chemical and construction to total market will steadily grow over short term, while applied, environment, electronic and information will rapidly grow This pattern will be stabilized over mid or long term. The additional requirement on technical manpower represents the similar pattern to market growth. The research result implies manpower policy for having high inflow of technical engineer from educational institute and the related industries through the image improvement.

• 정보처리학회논문지D
• /
• 제18D권6호
• /
• pp.493-500
• /
• 2011

기술용어 트렌드는 특정 연구 분야의 세부적인 주제가 시간의 흐름에 따라 변화하는 양상을 표현한다. 그런데 학술 문헌이나 특허의 경우에는 그 데이터가 방대하여 인적 자원을 활용하여 트렌드를 분석하는 것이 용이하지 않다. 본 논문은 용어의 활용주기를 모델링하고, 이를 통해 학술 논문에 나타나는 기술용어 트렌드를 탐지하고 분석할 수 있는 방법을 제안한다. 제안된 기법은 다음과 같은 과정으로 구성된다. 먼저 논문 데이터에서 추출된 기술용어를 대상으로 일정 주기별 용어지배값을 측정한다. 용어지배값 획득되면 이를 기반으로 용어 활용주기를 모델링한다. 이 모델링 과정에서 활용주기의 시계열 패턴이 유사한 기술용어들은 동일 트렌드 범주로 분류한다. 본 논문의 기술용어 트렌드 분석 실험을 위해 한국과학기술정보연구원이 운영 중인 국가과학기술정보센터(NDSL) 학술 논문 데이터를 활용하였다.

• 한국경영과학회지
• /
• 제33권4호
• /
• pp.13-30
• /
• 2008

We explore the determinants of long-term relationship between the buyer and the supplier to help suppliers develope a strategy to build long-term relationship with their buyers. Based upon an extensive literature review, we propose three droops of independent variables which may affect long-term relationship, including (a) environmental factors (product complexity, product importance, source dependence, price sensitivity), (b) relational factors(trust, commitment, satisfaction, intention of expansion), (c) operational performance(quality, delivery, cost capability, technical knowhow). The buyer's actual period of relationship with its main supplier is used as a dependent variable. Using hierarchical multiple regression analysis, we empirically test hypotheses, analysing a sample of 290 manufacturing firms in the U.S. The statistical results indicate that the buyer's source dependence, price sensitivity and the supplier's commitment play a significant role in establishing long-term relationship between the buyer and the supplier. However, the supplier's cost capability and technical knowhow in operational performance negatively affect long-term relationship in contrast with our hypotheses. Due to this controversial result, we divide the sample group Into dual sourcing and multiple sourcing environments and reconduct regression analysis in a post hoc manner. The findings show that the supplier's cost capability and technical knowhow are negatively associated with the length of relationship only in the multiple sourcing environment. The results may confirm that both parties' opportunistic behavior is more salient in the multiple sourcing environment than in the single sourcing environment.

• 한국IT서비스학회지
• /
• 제17권2호
• /
• pp.129-142
• /
• 2018

Recently, the number of patent applications have been increasing rapidly every year as the importance of protecting intellectual property rights becomes more important. Patents must be inventive and have novelty. Especially, the novelty implies that the corresponding invention is not the same as the previous invention. To confirm the novelty, prior art search must be conducted before and after the application. The target of prior art search should include not only Korean patents but also foreign patents. Search of foreign patents should be supported by multilingual search techniques. However, a dictionary-based naive approach shows a limitation because some technical concepts are represented in different terms according to each nation. For example, a Korean term and a Japanese term may not be synonym even though they represent the same technical concept. In this paper, we propose a new method to map semantic similarity between technical terms in Korean patents and Japanese patents. To investigate different representations in each nation for the same technical concept, we identified and analyzed pairs of patents those are mutually connected with priority claim relationship. By performing an experiment with real-world data, we showed that our approach can reveal semantically similar technical terms in other language successfully.

• 경영과정보연구
• /
• 제27권
• /
• pp.53-69
• /
• 2008

In this paper we analyse performance of value strategy and moving average method among the non-financial listed companies whose fiscal year ends at December in the Korean Stock Exchange between 1996 and 2005. And we analyse combination investment performance of value investment and moving average method. After the analysis objective enterprises divide with the value stock and the growth stock, in accordance with moving average method we divide ascending stock and descending stock. And we compose 6 portfolios with combination of value stock, growth stock, ascending stock and descending stock. Using the difference of investment performance of these portfolios, when fundamental analysis and technical analysis method all considering we measure investment performance. The major findings of this research are as follows: First, the value strategy of buying value stocks and selling growth stocks were effective in the long-term investment. Second, using the moving average method, technical analysis were effective in the case of the short-term investment. Third, the portfolios combined fundamental analysis and technical analysis were more effective than investment performance of technical analysis.

• Nuclear Engineering and Technology
• /
• 제49권8호
• /
• pp.1575-1588
• /
• 2017

In order to develop a domestic research roadmap for severe accidents, a special committee was established by the Korean Nuclear Society. One of the subcommittees discussed the characteristics and the relevant technical issues in the stages of fission product release and physical forms of radionuclide release and transport. The group members developed a tree to identify fission product release phenomena by tracing failures of individual defense-in-depth barriers and added possible countermeasures against failure. For each elemental issue, they searched for technical problems by examining the phenomena, accident management actions, and regulatory aspects relevant to the mitigation features for containment, including mitigation strategies against containment bypass accidents. Regulatory concerns, including the source term and the acceptance criteria for radionuclide release, were also considered. They identified further research needs regarding important technical issues based on the degree of the current knowledge level in Korea and in foreign countries, looking at the significance and urgency of issues and the expected research period required to reach an advanced level of knowledge. As a result, the group identified the 12 most important and urgent issues, most of which were expected to require mid-term and long-term research periods.

• 한국컴퓨터정보학회논문지
• /
• 제24권8호
• /
• pp.105-111
• /
• 2019

In this paper, I introduce the development of a system to register Korean standard technical terms which are corresponded with English electronical terminologies on the Electropedia of the International Electronical Committee(IEC). In 2016, this project was started with the permission of registration at the Technical Committee 1 of the $80^{th}$ IEC General Meeting in Frankfurt, Germany. The work was consisted of 3 parts, the 1st step was gathering Korean vocabularies and building a databse for the translation of English terms of International Electronical Vocabulary(IEV) into Korean terms, the 2nd step was to find correct or proper Korean term which is in accord with each English term of IEV on the Electropedia. In this step, members of Korean TC 1 worked for search proper Korean terms using developed computer programs and databases which were made of Korean electronical dictionaries. After selection of proper terms, they did the cross-checking work for Korean terms each other. The last step was to register all of these Korean terms on the Electropedia. As a result, 20,766 Korean electronical terms were registered on the Electropedia in 2017. In the future, it is needed that the definition of English technical terms are translated into Korean.