• Title/Summary/Keyword: 넬슨

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A Bayesian approach for dynamic Nelson-Siegel yield curve modeling on SOFR term rate data (SOFR 기간 데이터에 대한 동적 넬슨-시겔 이자율 곡선의 베이지안 접근법)

  • Seong Ho Im;Beom Seuk Hwang
    • The Korean Journal of Applied Statistics
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    • v.36 no.4
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    • pp.349-360
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    • 2023
  • Dynamic Nelson-Siegel model is widely used in modeling term structure of interest rates for financial products. In this study, we explain dynamic Nelson-Siegel model from the perspective of the state space model and explore Bayesian approaches that can be applied to that model. By applying SOFR term rate data to the Bayesian dynamic Nelson-Siegel model, we confirm the performance and compare it with other competing models such as Vasicek model, dynamic Nelson-Siegel model based on the frequentist approach, and the two-factor Bayesian dynamic Nelson-Siegel model. We also confirm that the Bayesian dynamic Nelson-Siegel model outperformed its competitors on SOFR term rate data based on RMSE.

Is There a Stochastic Non-fundamental Trend in Korean Stock Price?: Inference under Transformed Error Correction Model (우리나라 주가에는 펀더멘털과 무관한 비정상 추세가 존재하는가?: 공적분 및 베버리지-넬슨 분해 접근)

  • Kim, Yun-Yeong
    • KDI Journal of Economic Policy
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    • v.35 no.2
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    • pp.107-131
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    • 2013
  • In this paper, we test and estimate the stochastic non-fundamental trend in Korean stock market. For this, following Kim (2011), we exploit that the long-run equilibrium stock price may be decomposed into fundamental and stochastic non-fundamental trends (i.e., the sum of dividend innovations and a part that are orthogonal with the dividend innovations) by using the Beveridge-Nelson decomposition and projections. In this VAR construction, there is an error correction mechanism through which stock prices converge to their long-run equilibrium, which also contain the stated stochastic non-fundamental trend as well as fundamental trend. The estimation and test results using yearly data from the Korea (1976-2012) indicated that fluctuations in stock prices during that period can be explained mainly not by the stochastic non-fundamental trend but by the dividend trend. However, during some periods like after Seoul Olympic Games, we may observe the non-fundamental trend affected to the stock price variation.

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Antioxidant activity and content of phenolic compounds in fruits of mainly cultivated blueberries in Korea (한국의 주요 블루베리 품종의 항산화 활성 및 페놀화합물 함량 분석)

  • Kwon, Soon Eun;Ahn, Soon Young;Yun, Hae Keun
    • Journal of Plant Biotechnology
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    • v.45 no.4
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    • pp.392-399
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    • 2018
  • Fruits of 10 cultivars ('Blue Gold', 'Brigitta', 'Coville', 'Duke', 'Nelson', 'North Blue', 'Rancocas', 'Sierra', Sunrise, and 'Weymouth') of blueberries (Vaccinum corymbosun) were analyzed for characteristics, contents of total phenolic compounds and flavonoids and antioxidant activity in this study. Fruit weights ranged from 0.83 to 1.88 g. Total soluble solids concentration varied from 9.7 in 'Duke' to $16.6^{\circ}Brix$ in 'Sierra' with titratable acidities of 0.94 % in 'Sunrise' and 1.75% in 'Brigitta'. There are relatively high contents in 'North Blue' ($23.75mg\;GAE{\cdot}g^{-1}\;FW$) and low contents in 'Coville' ($17.15mg\;GAE{\cdot}g^{-1}\;FW$) in total phenolic compounds. Contents of total phenolic compounds were high in 'Nelson'($14.1mg\;QE{\cdot}g^{-1}\;FW$) and low in 'Duke' ($10.1mg\;QE{\cdot}g^{-1}\;FW$). Analysis of antioxidant activity of blueberry fruits showed that there were high acitiviites of ABTS+ radical scavenging in 'Rancoccas' (82.2%), 'Bluegold' (79.6%), and 'Nelson' (77.8%), and high activities of DPPH radical scavenging in 'Rancocca' (76.0%), and high in hydroxy radical scavenging in 'Nelson' (73.0%). Quantification analysis method of qualitative data showed that 'Bluegold', 'Nelson', 'Northblue', and 'Rancocas' had high contents of phenol and flavonoid compounds, and activity antioxidants of berries. Blueberry cultivars selected by statistical quantification analysis can be utilized as valuable genetic resources for breeding of blueberry with high antioxidant activities in the future.

에니메이션 영상산업의 개발현황과 발전전략

  • 넬슨신
    • Proceedings of the KAIS Fall Conference
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    • 2002.05a
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    • pp.9-15
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    • 2002
  • 오늘날처럼 엔터테인먼트 비즈니스가 최첨단 분야로 성장하는 데에는 무엇보다도 TV의 출연을 손꼽는다. TV는 각 가정 안에 우리의 생활과 함께 살아왔으며 영상 분야를 발전시키는 주역을 했다. 그리고 수많은 문명의 이기들을 쏟아져 나오게 했다. 필름에 이어 TV 그리고 비디오의 개발을 문화기기의 혁명적 성공이었다. 사람들이 즐기는 모든 엔터테인먼트 산업을 탄생시켰고 아주 정교하고 미세한 새로운 첨단 과학 장비들을 숨쉴 틈 없이 만들어 냈다.

Animation Review - 남북 합작 극장용 장편 애니메이션 '왕후심청'

  • Sin, Seon-Ja
    • Digital Contents
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    • no.10 s.125
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    • pp.126-129
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    • 2003
  • 전통설화 '심청전'을 현대적 감각으로 재해석한 순수 창작 애니메이션 '왕후심청(Empress Chung)'이 서서히 윤곽을 드러내고 있다. 한국적인 아름다움에 더불어 세계의 보편적인 감각과 기술이 융화된 이 작품은 특히 북한에서 OEM방식으로 제작됐다는 점에서 세간의 관심을 집중시킨 작품이다. 국내에서는 에이콤프로덕션의 대표로 더욱 잘 알려진 넬슨 신 감독이 '가장 한국적인 것이 가장 세계적인 것'이라는 모토를 다시 한번 실현시킨다는 포부로 막바지 작업에 한창인 '왕후심청'을 만나보자.

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A Study on the Steven Holl's Phenomenological Approaches in Architecture - Focused on the Phenomenological Characteristics of Nelson-Atkins Art Museum - (스티븐 홀의 현상학적 건축접근 방식에 관한 연구 - 넬슨-앳킨스 미술관에 적용된 내용을 중심으로 -)

  • Kim, Jun-Sung;Chung, Tae-Yong
    • Korean Institute of Interior Design Journal
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    • v.22 no.5
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    • pp.88-95
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    • 2013
  • The purpose of this study is to analyze the phenomenological approaches in Holl's architecture centered on his Nelson-Atkins Art Museum. This study mainly deals with concrete and practical architectural contents based on his recent works rather than existing studies about philosophical point of views to his architecture. Because Holl has had turning point from theoretical research to practical application and development stage. Therefore, this study aims to find out Holl's phenomenological approaches that were different from his early works. Nelson-Atkins art museum shows effect of luminosity as well as inflow of light in the phenomenological experiences of light and space. Holl gave new addition building that he designed contrasts of massing, transparency of material, colors to enhance existence of new building through phenomenological experiences. Narrow and long circulation and various focal points provide multi-view points and overlapped spaces in body experiences As a result, Holl shows shifts from theoretical application to architectural utilization. Nelson-Atkins art museum is important in that this project is one of stating points about this shift.