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타원형 미분작용소와 특성류이론

  • 김홍종
    • Communications of the Korean Mathematical Society
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    • v.12 no.4
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    • pp.1015-1021
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    • 1997
  • 타원형 미분작용소의 이론을 이용하여 옹골 다양체에서 정의된 벡터장의 특이점에 관한 푸앵카레-호프의 이론과 평다발의 오일러-푸앵카레 특성수를 연관시키는 법을 살펴보았다.

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멀티미디어기술대상 심의평

  • Korean Associaton of Information & Telecommunication
    • 정보화사회
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    • s.122
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    • pp.50-51
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    • 1998
  • 한국정보통신진흥협회와 한국경제신문사가 공동 주최하고 정보통신부가 주관하는 "제5회 멀티미디어기술대상"에 대한 시상식이 지난 3월 19일 KOEX대회의실에서 거행되었다. 다음은 수상작품들에 대한 심의평이다.

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Product Evaluation Summarization Through Linguistic Analysis of Product Reviews (상품평의 언어적 분석을 통한 상품 평가 요약 시스템)

  • Lee, Woo-Chul;Lee, Hyun-Ah;Lee, Kong-Joo
    • The KIPS Transactions:PartB
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    • v.17B no.1
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    • pp.93-98
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    • 2010
  • In this paper, we introduce a system that summarizes product evaluation through linguistic analysis to effectively utilize explosively increasing product reviews. Our system analyzes polarities of product reviews by product features, based on which customers evaluate each product like 'design' and 'material' for a skirt product category. The system shows to customers a graph as a review summary that represents percentages of positive and negative reviews. We build an opinion word dictionary for each product feature through context based automatic expansion with small seed words, and judge polarity of reviews by product features with the extracted dictionary. In experiment using product reviews from online shopping malls, our system shows average accuracy of 69.8% in extracting judgemental word dictionary and 81.8% in polarity resolution for each sentence.

Study on Improvement of Frost Occurrence Prediction Accuracy (서리발생 예측 정확도 향상을 위한 방법 연구)

  • Kim, Yongseok;Choi, Wonjun;Shim, Kyo-moon;Hur, Jina;Kang, Mingu;Jo, Sera
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.23 no.4
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    • pp.295-305
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    • 2021
  • In this study, we constructed using Random Forest(RF) by selecting the meteorological factors related to the occurrence of frost. As a result, when constructing a classification model for frost occurrence, even if the amount of data set is large, the imbalance in the data set for development of model has been analyzed to have a bad effect on the predictive power of the model. It was found that building a single integrated model by grouping meteorological factors related to frost occurrence by region is more efficient than building each model reflecting high-importance meteorological factors. Based on our results, it is expected that a high-accuracy frost occurrence prediction model will be able to be constructed as further studies meteorological factors for frost prediction.

A study on Keup-ahm Min Sah-pyeong's Realization of Reality (급암(及庵) 민사평(閔思平)의 현실인식)

  • Jeong, Seong-sik
    • (The)Study of the Eastern Classic
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    • no.69
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    • pp.509-530
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    • 2017
  • The purpose f this thesis is to examine the reality of Min Sha-pyeong, which led to life in the end of the Koryo Dynasty. Min Sha-pyeong was able to conduct academic exchanges through active negotiations with various scholars at the time. After passing the civil service exam at the age of 21, Min Sha-pyeong acted in various positions and remained loyal to the government. Min Sha-pyeong, who frequently met with Lee Je-hyun, Baek Mun-bo and Lee-saek, exchanged opinions. Sometimes Baek Mun-bo gathered together and always joined him when drinking. Lee-saek was convinced that his poetry would continue to inspire. The time when Min Sha-pyeong was active very confusing at home and abroad. In the end of the Koryo Dynasty, the national operating system was unstable due to the poor land and the suffering of the afflicted people, who suffered from frequent in vasions of Japan. At the time, the corruption and the suffering of the people were serious. Min Sha-pyeong refers to the reality of the people who love the people, reflecting the lives of the people living in poverty. Min Sha-pyeong thinks life without loyality is not a normal life. If I had a desire, I realized that the riches of wealth would wane someday. Min Sha-pyeong hoped that he would be relieved of his sympathy and would be relieved of their position in sympathy ith the people. Here, youy can see the reality of the people in Min Sha-pyeong is clearly revealed.

Future Projection of Climatic Zone Shifts over Korean Peninsula under the SSP-RCP Scenario using Trewartha's Climate Classification (트레와다 기후구분을 이용한 SSP-RCP 기반 미래 한반도 기후대 변화 전망)

  • Jina Hur;Sera Jo;Yong-Seok Kim;Eung-Sup Kim;Kyo-Moon Shim;Min-Gu Kang;Seung-Gil Hong;Hojung Kim
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.26 no.3
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    • pp.175-190
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    • 2024
  • In order to project changes in climate zones across the Korean Peninsula, the Trewartha's climate classification was applied to the SSP-RCP scenario data with a 1km resolution produced by the National Institute of Agricultural Sciences of the Rural Development Administration. Currently, most of the Korean Peninsula (92.3%) belongs to the temperate climate type (D), whereas only some areas (4.9%), such as Jeju Island, belongs to the subtropical climate type (C). According to SSP-RCP scenarios, the temperature is expected to gradually increase due to the influence of global warming during the 21st century, and the subtropical climate type is expected to expand to 14.1 to 48.6% of the total area of the Korean Peninsula in the far future. On the other hand, the temperate zone, which is currently most dominant on the Korean Peninsula, is expected to shrink by 85.8 to 51.4% in the late 21st century. If carbon dioxide emissions continue at the current rate, the entire Korean Peninsula will likely be dominated by subtropical and temperate regions in the distant future. In particular, the subtropical climate type is expected to dominate most of South Korea in the high-carbon scenario, except for highlands.

New Transition of Historical Narratives in Taiwanese Contemporary Literature: The Reproduction of Taiwanese Historical Records of the 17th Century and Contemplation of Culture in the Novels of Ping Lu and Chen Yao-chang (台湾当代文学历史叙事的新转折 —平路与陈耀昌小说中十七世纪台湾史料的再现与思索)

  • 이숙연
    • CHINESE LITERATURE
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    • v.100
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    • pp.85 -100
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    • 2019
  • In the 21st century, there was a boom of research in the field of Taiwanese historical narrative on Netherland's colonial rule of Taiwan in the 17th century. Such trend expanded to the literature field, and creations were made using the forgotten historical material. Representative works are 《婆 娑之島》 and 《福爾摩沙三族記》, written by Ping Lu and Chen Yao-chang. By analyzing these texts, this study studies what kind of a message the author presents through the literary form, and what his view is on the present and the future. In 《婆娑之島》, Ping Lu presents the fate of Taiwan being in the midst of imperialism for 400 years, and points out the betrayal of imperialism on Taiwan. Ping Lu argues that in order for Taiwan to evade from such situation, the future of Taiwan should be discussed in the global context, outside of the limited perspective of "China/Taiwan". Chen Yao-chang established the Tiwanese identity based on the multiple history narrative, by referencing to the spacial identity instead of the innate kinship. Such establishment of identity gave a breakthrough to the identity politics in Taiwan. Amidst the rapidly changing world politics and economy, it is essential for Taiwan to reestablish the cultural identity for itself for its development. What is more important is that the multiple history narrative maintains openness of history and communicates with the grand narrative to prevent history from being baised.

Dragonsrest

  • Lee, Si-Jeong
    • 주택과사람들
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    • s.191
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    • pp.96-99
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    • 2006
  • 맨션 <드래곤스레스트>는 이름이 전하는 느낌 그대로 고요함과 웅장함이 가득한 집이다. 거친 듯 아름다운 숲 속 한가운데 자리 잡은 이 저택은 무성한 녹음과 경계를 공유하며 자연의 일부처럼 평온하고도 광활한 느낌을 선사한다. 무려 3만 3200평에 달하는 정원과 420여 평의 주저택으로 구성된 <드래곤스레스트>는 휴양지라는 이름이 더 잘 어울리는 거대한 안식처다.

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아파트 거주자의 위생생활 행위 실태분석

  • 대한설비건설협회
    • 월간 기계설비
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    • s.50
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    • pp.84-104
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    • 1994
  • 본고는 연세대학교 대학원 주생활학과 조명은씨가 $\ulcorner$아파트 거주자의 위생생활행위 실태분석$\lrcorner$의 연구결과에 따른 것으로 연구대상은 서울시 아파트에 거주하는 주부를 대상으로 1970년대부터 1990년 이후까지 건설된 아파트를 조사대상으로 하였으며 설문조사의 대상범위는 서울시 아파트 거주자들로 계층은 저소득층과 상류층을 제외한 중류층 거주자들을 대상으로 하기 위해 아파트 평수를 20평에서 49평까지 제한했다.

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