• 스마트미디어저널
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• 제10권1호
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• pp.39-46
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• 2021

본 연구는 뉴스 기사에서 기사문을 구성하는 문장별 중요도를 고려하여 요약문을 추출하는 방법에 관한 것으로 문장 중요도에 영향을 주는 특성으로 중심 문장(Topic Sentence)일 확률, 기사 제목 및 다른 문장과의 유사도, 문장 위치에 따른 가중치를 추출하여 문장 중요도를 계산하는 방법을 제안한다. 이때, 중심 문장(Topic Sentence)은 일반 문장과는 구별되는 특징을 가질 것이라는 가설을 세우고, 딥러닝 기반 분류 모델을 학습시켜 입력 문장에 대한 중심 문장 확률값을 구한다. 또한 사전학습된 ELMo 언어 모델을 활용하여 문맥 정보를 반영한 문장 벡터값을 기준으로 문장간 유사도를 계산하여 문장 특성으로 추출한다. LSTM 및 BERT 모델의 중심 문장 분류성능은 정확도 93%, 재현율 96.22%, 정밀도 89.5%로 높은 분석 결과가 나왔으며, 이렇게 추출된 문장 특성을 결합하여 문장별 중요도를 계산한 결과, 기존 TextRank 알고리즘과 비교하여 중심 문장 추출 성능이 10% 정도 개선된 것을 확인할 수 있었다.

• 환경생물
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• 제27권3호
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• pp.314-322
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• 2009

특산속 식물인 모데미풀의 자생지 식생을 비롯해 환경 및 토양 특성을 조사하여 보존 및 복원 시 기초자료를 제공하고자 하였다. 모데미풀의 자생지는 770~1,440m에 위치하고, 경사는 $0{\sim}20^{\circ}$로 완만하였으며, 주로 계곡부 북사면에 불연속적인 군락을 형성하고 있었다. 식생분석결과 78개 방형구 내에서 조사된 분류군은 총 111종류였다. 중요치는 모데미풀이 27.05%로 가장 높았으며, 모데미풀과 비슷한 환경을 선호하는 분류군으로는 박새 (5.67%), 현호색 (5.32%), 눈개승마 (4.35%), 벌깨덩굴(4.06%), 홀아비바람꽃(3.91%) 등으로 나타났다. 자생지 상층 수목 중 교목층은 층층나무, 가래나무, 신갈나무, 당단풍나무, 고로쇠나무 등이 우점종으로 나타났고, 아교목층은 당단풍나무와 까치박달이 높은 빈도를 보였으며, 관목층은 물참대와 귀룽나무가 우점하였다. 종다양도는 평균 1.16이었고, 우점도와 균등도는 각각 0.12와 0.81로 나타났다. 토양의 포장용수량은 평균 26.41%이었으며, 유기물 함량은 7.83%로 나타났고, pH는 5.83으로 확인되었다. 환경특성과 식생 및 토양 분석 결과에 기초한 상관분석에서는 경사와 pH, 경사와 유기물함량, 우점도와 중요치, 종다양도와 종풍부도가 정의 상관관계를, 우점도와 종다양도, 종다양도와 중요치는 부의 상관관계를 보였다.

• 대한지역사회영양학회지
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• 제25권5호
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• pp.374-385
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• 2020

Objectives: This study was conducted to examine the status of foodservice management, with special interest on sanitary and nutritional food service in elderly day care centers. Methods: A total of 79 employees who managed foodservice facilities in elderly day care centers were included in the survey. The contents of the questionnaire consisted of general characteristics, importance and performance of sanitary and nutrition management, the reasons for poor performance, factors necessary for improvement, and the employee's demand for support. Data analysis was conducted using the SPSS v25.0. Results: Sanitary management showed an average importance score of 4.84 ± 0.40 and a performance score of 4.70 ± 0.61 (t-value: 8.260). The item with the lowest performance score was personal sanitary management (4.58 ± 0.71). In nutrition management, the average importance score was 4.52 ± 0.68, and the performance score was 4.20 ± 1.00 (t-value: 9.609). There were significant differences between the average score of importance and performance in both areas. As a result of an Importance-Performance Analysis, items that were recognized as important but had relatively low performance was "personal hygiene", "ventilation" and "food storage". Also in the nutritional management area, "menu planning for disease management" and "checking the saltiness in the soup" etc. had very low performance with low importance recognition. The items shown in the "low priority" quadrant were those that required professional management skills. In the areas that demanded support in foodservice management, education about sanitary and safe institutional food service had the highest score (4.42 ± 0.74), and all other items showed a demand of 4 points or more. Conclusions: Foodservice managers recognize the importance of foodservice facility management but performance is relatively low. Institutional support is, therefore, needed to improve performance. For items with low importance, it seems necessary to improve awareness of the necessity of these items and to provide education in this regard. To gradually improve foodservice management, continuous provision of education and training in these areas are of great importance.

• 한국환경생태학회지
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• 제26권1호
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• pp.1-10
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• 2012

본 연구는 희귀식물로 지정되어 있는 울릉도 미역고사리의 자생지 환경을 조사하여 보전 및 복원 시 기초자료를 제공하고자 하였다. 조사결과 미역고사리의 자생지는 해발고도 410~748m 범위와 경사 $12{\sim}80^{\circ}$의 암석지에 주로 생육하는 것으로 조사되었다. 식생분석결과 4개 지역의 10개 방형구내에서 조사된 관속식물은 총 66분류군이었다. 자생지 상층수목 중 교목층의 중요치는 고로쇠나무(49.52%)가 아교목층은 당마가목(28.99%)이 가장 높았으며, 관목층은 바위수국(51.99%), 섬쥐똥나무(8.82%), 너도밤나무(7.25%)가 높은 값을 보였다. 초본층은 미역고사리가 23.23%로 가장 높았으며, 다음으로는 큰두루미꽃(9.65%), 파리풀(9.23%), 관중(8.40%), 산꼬리사초(6.75%), 섬바디(5.42%) 등이 높은 값을 보여 이 종류들이 친화도가 높은 것으로 판단된다. 종다양도는 1.18로 산출되었으며, 우점도와 균등도는 각각 0.11와 0.84로 확인되었다. 토양분석 결과 토성은 사양토로 나타났으며, 포장용수량은 30.42%, 유기물함량은 17.95%, pH는 4.70으로 측정되었다. 환경특성과 식생 및 토양분석 결과에 기초한 상관분석에서는 종다양도와 종풍부도는 정의 상관관계를 보였고, 종다양도와 우점도 그리고 미역고사리의 피도와 종풍부도는 부의상관관계를 형성하였다.

• 한국건설관리학회논문집
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• 제23권3호
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• pp.74-82
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• 2022

본 연구에서는 부동산 산업 내에서 프롭테크의 도입과 함께 가장 각광받고 있는 기술 중 하나인 블록체인 기술이 부동산 전자거래에 가져올 변화와 도입의 필요성에 대해 알아보고 기술 적용을 통해 부동산전자거래 내에서 새롭게 창출할 수 있는 가치를 분류하고 각 가치 영역의 상대적 중요도를 산정하는 평가 지표를 개발하고자 한다. 이를 위하여 블록체인 기술의 부동산 전자거래 적용 시 창출할 수 있는 가치를 차원에 따라 분류하였고, 평가 기준이 복합적이고 다양한 요인에 따라 중요도가 다르게 측정될 수 있음을 고려하여 실무 및 학술 분야의 전문가를 대상으로 계층분석적 의사결정방법에 따른 분석을 진행하였다. 분석은 총 두 단계로 이루어졌으며 첫 번째 단계에서는 일반적 가치, 상업적 가치, 잠재적 가치를 제시하였고, 두 번째 단계에서는 계층분석적 의사결정방법의 분해 과정에 따라 하위 평가 지표를 제시하고 이를 쌍대비교하여 지표 간 중요도를 산정하였다. 분석 결과, 첫 번째 차원에서는 일반적 가치가 가장 높은 중요도를 보였으며 두 번째 차원에서는 블록체인 기술 특성 중 응용 계층의 가용성을 기반으로 한 부동산 정보의 디지털화가 가장 높은 중요도를 보였다. 본 연구는 이를 통해 향후 블록체인 기술의 부동산 거래 적용을 통한 창출 가능한 가치에 대한 평가 지표를 제시하여 향후 관련 연구의 기반 자료로써의 활용 및 지표 별 중요도에 따른 시장의 지향점을 제시하는데 의의가 있다.

• 한국환경복원기술학회지
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• 제12권4호
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• pp.23-33
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• 2009

Vegetation structure of Seokseong fortress in Buyeo-Gun was investigated to suggest a desirable management proposal. Communities by phytosociological method were classified into Pinus rigida-Pinus densiflora community and Quercus variabilis community. The importance value of Pinus rigida, Pinus densiflora, Quercus variabilis, Pinus thunbergii, and Quercus acutissima were 127.06, 70.29, 69.63, 12.39 and 8.57. According to breast diameter analysis results, it is expected that the importance value of Pinus rigida, Pinus densiflora, and Quercus variabilis will be continuously increased. It should be prepared that vegetation management plan over the castle wall should be considered before the repair or restoration of castle wall. Vegetation management around castle wall should be carried out according to the mid or long-term plan and it would be needed to consider the gradual changes from planted Pinus rigida to the historical vegetation of Pinus densiflora.

• 산업경영시스템학회지
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• 제42권3호
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• pp.142-156
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• 2019

[Purpose] It aims to suggest the differential factors to enhance the customer satisfaction and to activate the shopping in the convenience store (CVS). [Methodology] Convenience store service convenience (CVS SERVCON) was developed at the first time and the gap of relative importance level between the owners and the consumers was assessed by AHP analysis method..[Findings] First, the importance of access convenience was assessed as the first priority in both CVS owners' group and the consumers' group, while the detailed elements showed the differences which required the improvements. Based on the consumers' assessment, the importance of location was relatively low. They assessed relatively high on 24 hours operation of CVS and personal services. Second with respect to the transaction convenience, CVS owners' group rated it as the fourth priority while the consumers' group rated as the second, which requires the improvement. Third in terms of benefit utility and value-added service of post-benefit convenience which are the sub-factors of benefit convenience, the rate on the importance from the consumers showed higher than that from the owners, which requires the improvement. [Implications] Based on this study results, CVS operating companies are anticipated to be able to satisfy the customers, moreover, to secure the loyal customers if they concentrate the resources to develop the differentiation strategy on the areas where the consumers' demands are high while performs the maintenance strategy on the areas where their demands are low. In addition, this study contributed the theoretical expansion of SERVCON upon development of CVS SERVCON to comply with its definition.

• 한국조경학회지
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• 제19권2호
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• pp.75-91
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• 1991

This study is one of studies on the analysis of vegetation spatial image and visual preference of roadside slopes in Chi-Ri Mt. national park. In this article, we analized the soil characteristics and the actual vegetation within slopes and forest lands contiguous to those. The results obtained were summarized as follows; The physical and chemical properties of soil in forest lands were better than slopes and Cheoneun temple - Seongsam pass was the best fertilized among 3 sector. In the structure of woody plants in forest lands, the high importance value species were Pinus denciflora, Quercus aliena within Ukmojeong-Deokdong sector, Q. aliena, Q. varabilis, Q. serrata within Banseon-Seongsam pass sector, and P. denciflora, Q. dentata within Cheoneun temple-Seongsam pass sector. And also, Aster scaber, Arundinella hirta, Pteridium aquilinum were the high importance value herbs within all sector. In slopes, the species diversity indices of woody plants were low, but that of herbs showed slightly high. By the cluster analysis used in similarity index, it was observed that woody plants structure between slopes and forest lands made little, but the herbs made slightly higher than woody plants.

• 한국조경학회지
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• 제33권2호
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• pp.48-59
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• 2005

The purpose of this study was to examine the ecological characteristics of herbaceous communities by systematic and scientific analysis of their structure and diversity in the Midongsan Arboretum and to offer raw data for a long-tenn monitoring study. The importance value and diversity index of species appearing in twenty plots from July to September, 2004 were analyzed and a management plan for these communities is presented. Vascular plants were represented by 60 taxa of 23 families, 51 genera, 50 species and 10 varieties. Based on the results of importance value analysis, the most dominant species was Artemisia princeps var. orientalis, followed by Setaria viridis and Erigeron canadensis. The diversity index analysis showed that plot no. 5 had the highest H' and H'_{max}$(2.0135 and 2.6391). It's species composition was comparatively more diverse and it's structure more stable than other plots. Artemisia montana and Dactylis glomerata showed the highest correlation between species. Because herbaceous communities are important biological habitats and provide important function in environmental conservation, it is important to properly preserve these communities. At the same time, in order to preserve genetic resources and improve spatial function, it may be necessary to consider removing herbaceous communities in certain areas. In the future, the relations between physicochemical soil properties and herbaceous communities should be examined and community movement should be studied.

• 무역학회지
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• 제45권5호
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• pp.239-260
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• 2020

This research was conducted on 176 GVCs-related research papers listed in the Index of Korean Academic Writers. The analysis methodology used the keyword network analysis methodology of big data analysis. For the comprehensive analysis of research trends, the research trends through word frequency (TF), important topic (TF-IDF), and topical modeling were analyzed in 176 papers. In addition, the research period of GVCs was divided into the early stages of the first study (2003-2014), the second phase of the study (2015-2017), and the third phase of the study (2018-2020). According to the comprehensive analysis, the GVCs research was conducted with the keyword 'value added' as the center, focusing on the keywords of export (trade), Korea, business, influence, and production. Major research topics were 'supporting corporate cooperation and capacity building' and 'comparative advantage with added value of overseas direct investment'. According to the analysis of major period-specific research trends, GVCs were studied in the early stages of the first phase of the study with global value chain trends and corporate production strategies. In the second research propulsion period, research was done in terms of trade value added. In the recent third phase of the study, small and medium-sized enterprises actively participated in the global value chain and actively researched ways to support the government. Through this study, the importance of the global value chain has been confirmed quantitatively and qualitatively, and it is recognized as an important factor to be considered in the strategy of enhancing industrial competitiveness and entering overseas markets. In particular, small and medium-sized companies' participation in the global value chain and support measures are being presented as important research topics in the future.