• Koreanishche Zeitschrift fur Deutsche Sprachwissenschaft
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• v.10
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• pp.155-174
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• 2004

Wir $k\"{o}nnen$ die $Ged\"{a}chtnisforschungen$ mit Fremdsprachenlernen $verkn\"{u}pfen$. Ein Lernprozess ist gerade einer vom $Ged\"{a}chtnisprozess$. $F\"{u}r$ einen erfolgreichen Fremdsprachenunterricht ist es $n\"{o}tig$, dass beim Lernprozess ein Sprachwissen vom deklarativen $Ged\"{a}chtnis$ ins prozeduale $Ged\"{a}chtnis$ $\"{u}bertragen$ wird. Aber ein Lernerfolg ist je nach dem Individiuum anders. d.h. der unterschiedliche Lerneffekt zwischen Lemenden $h\"{a}ngt$ eventuelle von $pers\"{o}nlichen$ Erfahrung und von dem episodischen $Ged\"{a}chtnis$. Beim Lernprozess muss Sprachwissen vom deklarativen $Ged\"{a}chtnis$ zum prozedualen $Ged\"{a}chtnis$ $\"{u}bertragen$ werden, um Fremdsprachen zu beherrschen. Inzwischen spielen implizites $Ged\"{a}chtnis$ und episodisches $Ged\"{a}chnis$ wichtig Rolle beim $\"{U}bertragungsprozess$. $Daf\"{u}r$ zeigen wir Lernstrategie der Tempusverwendung in Bezug auf die $Ged\"{a}chtnisforschung$. Mit welchem Tempus will man seine Intention im Text $ausdr\"{u}cken$? $Daf\"{u}r$ zeigen wir ein einfaches Spiel $f\"{u}r$ den Fremdsprachenunterricht. Das ist das Spiel zur Strategie der Tempusverwendung bei der Textproduktion $f\"{u}r$ das reportiv-orientierte Thema. Unsere Untersuchung der Tempera kann besonders im Fremdsprachenunterricht dizu beitragen, dass der Lernende als Produzent einerseits unter Berucksichtigung der Textsorte, der zeitlichen Orientierung des Theams und der Sprecherabsicht bei der Textproduktion die Tempera ohne $Z\"{o}gern$ $ausw\"{a}hlen$ und benutzen kann und dass der Lernende als Rezipient auch durch das Erlernen der verschiedenen Funktionen der Tempera versteckte Absichten des Produzenten richtig verstehen kann. Unsere Untersuchung kann in diesem Sinne hinsichtlich der Tempusfunktion bei der erfolgreichen Erweiterung der kommunikativen $F\"{a}higkeiten$ im Unterricht behilflich sein.

• Environmental and Resource Economics Review
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• v.19 no.3
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• pp.485-508
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• 2010

This paper examines the long memory property and investigates cointegration in the dynamics of crude oil markets. For these purposes, we apply the joint ARMA-FIAPARCH model with structural break and the vector error correction model (VECM) to three daily crude oil prices: Brent, Dubai and West Texas Intermediate (WTI). In all crude oil markets, the property of long memory exists in their volatility, and the ARMA-FIAPARCH model adequately captures this long memory property. In addition, the results of the cointegration test and VECM estimation indicate a bi-directional relationship between returns and the conditional variance of crude oil prices. This finding implies that the dynamics of returns affect volatility, and vice versa. These findings can be utilized for improving the understanding of the dynamics of crude oil prices and forecasting market risk for buyers and sellers in crude oil markets.

• The Korean Journal of Archival Studies
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• no.29
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• pp.79-127
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• 2011

This study was designed for a theoretical and methodological discussion on a methodological medium, orality to historicize the 'Civilian Massacre', of countless counter-memories which are inherent in Korean society. In other words, prior to collection of oral sources, it is to produce reliable oral history through a discussion on oral history research methodology and qualitative research methodology of oral history, after theorizing occurrence process of dominant-memory and counter-memory, orality's meanings as a counter-memory and the necessity for historicization of neglected memories, focusing on a 'memory' which is a fundamental background of an 'oral' act. Based on this basic process, oral recording process was performed in Changsoo-myeon, Yeongdeok-gun, Kyung-book Province where was selected as a research target for the civilian massacre that is a case to figure out what kind of high-quality record is produced, with a precise understanding of a particular methodology, oral history.

• KIPS Transactions on Computer and Communication Systems
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• v.10 no.2
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• pp.53-58
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• 2021

In this paper, an alternative finite memory structure(FMS) smoothing filter is developed for discrete-time state-space model with a control input. To obtain the FMS smoothing filter, unbiasedness will be required beforehand in addition to a performance criteria of minimum variance. The FMS smoothing filter is obtained by directly solving an optimization problem with the unbiasedness constraint using only finite measurements and inputs on the most recent window. The proposed FMS smoothing filter is shown to have intrinsic good properties such as deadbeat and time-invariance. In addition, the proposed FMS smoothing filter is shown to be equivalent to existing FMS filters according to the delay length between the measurement and the availability of its estimate. Finally, to verify intrinsic robustness of the proposed FMS smoothing filter, computer simulations are performed for a temporary model uncertainty. Simulation results show that the proposed FMS smoothing filter can be better than the standard FMS filter and Kalman filter.

• The Korean Journal of Archival Studies
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• no.39
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• pp.73-100
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• 2014

For a society to be constantly sustained, it needs its past memories to be made present into cultural memories. The state of oblivion resulted from the time difference of the past and the present is commonly made present into commemoration days or memorial spaces. Each has its own form of representation it reflects, but all are related to how past is remembered and how it will be formed. Records, especially the authentic records the nation secured, have an ontological feature of proof that is able to persuade the current present of the past present, and inherent in it is faith that originates from fundamental objectivity. Therefore the image of silence that such strictness of records creates realizes the detonation of specific memories through the act of visual exhibition. Hence, this paper endeavors to examine how the national records, particularly the photographical records, was utilized and how it influenced the people and the society after its organization, through analysing examples of memorial spaces.

• Environmental and Resource Economics Review
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• v.16 no.4
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• pp.947-978
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• 2007

In this paper, we investigated a Value-at-Risk approach to the volatility of two crude oil markets (Brent and Dubai). We also assessed the performance of various VaR models (RiskMetrics, GARCH, IGARCH and FIGARCH models) with the normal and skewed Student-t distribution innovations. The FIGARCH model outperforms the GARCH and IGARCH models in capturing the long memory property in the volatility of crude oil markets returns. This implies that the long memory property is prevalent in the volatility of crude oil returns. In addition, from the results of VaR analysis, the FIGARCH model with the skewed Student-t distribution innovation predicts critical loss more accurately than other models with the normal distribution innovation for both long and short positions. This finding indicates that the skewed Student-t distribution innovation is better for modeling the skewness and excess kurtosis in the distribution of crude oil returns. Overall, these findings might improve the measurement of the dynamics of crude oil prices and provide an accurate estimation of VaR for buyers and sellers in crude oil markets.

• The Journal of the Acoustical Society of Korea
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• v.18 no.2
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• pp.61-65
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• 1999

This paper derives a sufficient condition on the stability of recursive third-order Volterra filters based on their filter coefficients. A Volterra filter is very effective in modeling nonlinear systems with memory. However, it is well-known that the nonrecursive Volterra filter requires a large number of filter coefficients to describe a nonlinear system. For this reason, recursive Volterra filters are usually considered because the recursive implementation requires a smaller number of coefficients compared to the nonrecursive one. Unfortunately, the main problem of the recursive Volterra filters is their inherent instablility. In this paper. we present a simple condition for the output of a recursive discrete-time third-order Volterra filter to be bounded whenever the input signal to the recursive Volterra filter is bounded by a finite constant.

• Journal of Biosystems Engineering
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• v.15 no.4
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• pp.319-327
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• 1990

시스템의 적응 제어함수를 산출하는 네트워크인 소뇌모델 선형조합 회로망을 이용한 학습제어 기법은 시스템에 영향을 주는 제어인자들의 불확실성 및 모델링의 결여에도 불구하고 오히려 안정한 실시간 제어의 구현을 가능하게 함으로써 대단한 관심을 불러 일으켜 왔다. 그러나, 센서로부터의 정보처리와 인식 그리고 복잡한 비선형 시스템의 제어에 적용하기에는 회로망 자체의 내재적 문제점들이 여전히 남아있다. 소뇌모델 선형조합 회로망을 기지 또는 미지의 시스템 모델에 효과적으로 적용하기 위해서는 네트워크에 영향을 주는 제어인자가 시스템에 미치는 영향을 분석하는 것이 필수적이다. 분할 블럭의 크기, 학습이득, 입력편이 그리고 입력변수들의 영역과 같은 네트 제어인자들은 시스템의 학습 능률 및 소요 기억용량의 크기에 중대한 영향을 미침에도 불구하고 충분히 조사되지 못한 실태이다. 물론 이들 제어인자들의 결정에는 학습 대상이 되는 시스템 함수의 형태와 적용 학습 알고리즘이 반드시 고려되어야 한다. 본 논문에서는 학습 능률성에 미치는 이들 제어인자들의 상호영향도를 저자가 제안하였던 기본 학습 알고리즘에 의거하여 조사하였다. 분석적인 방법만으로 이러한 상호영향성을 조사하기는 매우 힘들거나 거의 불가능하다고 보아지기 때문에 학습 대상함수를 먼저 규정하여 다양한 컴퓨터 모의시험을 수행하였고 그 결과를 분석하였다. 컴퓨터 모의시험의 결과에 의하여 회로망의 시스템 적용시 고려할 설계 지침을 제시하였다.

• The Journal of the Korea Contents Association
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• v.16 no.9
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• pp.679-693
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• 2016

The purposes of this study were to examine the patterns of recalling memories in the series and look into the desires of viewers disclosed in the process. Entering the 2010s, people got to recall their memories from the 1980s and 1990s. Nostalgia and retro became cultural products. What made the series, those depict the pure love, friendship, and family affection of main characters under age in those decades, so popular among the viewers? Finding a repeating pattern in recollection of the past, dating, and family love, the investigator saw that the pattern met the needs of viewers and thus analyzed their desires inherent in the series with a focus on its "narratives" and "characters." Their unique sounds effect and music established a micro-narrative that could be divided, thus allowing viewers to own certain scenes easily, which worked to make "non-existent" memories. Secondly, the series succeeded in capturing the desire of viewers living in the age of neoliberalism to reduce their fatigue from excessive choices by setting the characters in a contrived way and thus presenting the desire of maintaining the stable middle class world with no conflicts and the passive female characters. The recollections provided by the series, in the end, fill the desire and deficiency of the present beyond a simple return to the past.

• Journal of the Korea Society of Computer and Information
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• v.18 no.1
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• pp.31-42
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• 2013

This research sheds light on the non-intrusive traits of mobile devices (Electronic Guidebook, Rememberer, I-Guides and eXspot) deployed in Exploratorium for enhancing visitor experience via case studies. In an interactive exhibition environment, non-intrusiveness was the key to supporting the immersive experience and meaning-making for visitors. The usability of hand-held devices directly impacted on the non-intrusiveness, thereby reshaping the form-factors of mobile devices. The change in from-factor has also minimized the functions of devices as the remember of museum experience. Furthermore, the role of mobile devices, which turned from a supposed multi-media guide to a mere rememberer, made them virtually impossible for realizing the "seamless visiting model" originally planned. An array of projects carried out in Exploration have achieved some degree of success such as increasing viewing time as well as reinforcing post-visit activities. However, taken from musicological perspective, increase in viewing time is by all means insufficient to be taken as proof since it is assumed to be achieved by photo-taking (i.e. MyExploratorium) rather than by interacting between visitors and exhibits. This issue --increased viewing time -- needs to be analyzed in depth. All in all, mobile devices used in Exploratorium can be defined as a learning tool/educational supporting medium based on personalization for (visitors') optimizing extended museum experience.