• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.1
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• pp.123-130
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• 2021

With the recent developments in computer technology, there has been an increasing interest in the field of machine learning. This also has led to a significant increase in real business cases of machine learning theory in various sectors. In finance, it has been a major challenge to predict the future value of financial products. Since the 1980s, the finance industry has relied on technical and fundamental analysis for this prediction. For future value prediction models using machine learning, model design is of paramount importance to respond to market variables. Therefore, this paper quantitatively predicts the stock price movements of individual stocks listed on the KOSPI market using machine learning techniques; specifically, the reinforcement learning model. The DQN and A2C algorithms proposed by Google Deep Mind in 2013 are used for the reinforcement learning and they are applied to the stock trading strategies. In addition, through experiments, an input value to increase the cumulative profit is selected and its superiority is verified by comparison with comparative algorithms.

• The Journal of the Convergence on Culture Technology
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• v.7 no.1
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• pp.75-81
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• 2021

With the development of advanced information and communication technology, Generation Z, familiar with digital culture, is drawing keen attention as a major consumer of the fashion industry. In this study, casual wear for Generation Z, who is proficient in digital devices and prefers information acquisition and lifestyle over the Internet, was designed using 3D virtual simulation and developed into four looks: Gulish, Sportive, Easy and Contemporary. The use of simulation of 3D virtual clothing in costume design can build digitalization of future fashion industry through convergence with digital fashion design planning and production process in fandemic environment and strengthen online platform distribution. In a business environment that continues to innovate to enhance work efficiency by introducing an Untouch fashion production system, the use of 3D virtual clothing technology can increase the efficiency of sustainable management through 3D sample production, online fitting, modification, and final critic processes to reduce the time and cost of human and physical resources and review.

• Journal of the Korea Convergence Society
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• v.12 no.4
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• pp.151-159
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• 2021

The purpose of this study is to attempt a convergent study by analyzing modern funk ceramic artworks through 'Irony', which was mainly used in rhetoric and literature. The irony has come to modern times and has embraced the type of irony by Jung Keut-Byul, a literary critic who has discovered that the classifications and definitions are different from each other, and who has solved these problems and has newly classified the irony (the irony of oxymoron, the irony as a counterstatement, the irony of dramatic turn, the irony as a poetic truth) as a framework for analyzing the works of 20th century punk potters. As a result, the formative language found in funk ceramic art had many similarities with the irony of duality of surface and reality, and its humorous and comic character was more prominent than the heavy, melodramatic tone shown in literature. It was also found that the media characteristics and craft properties of ceramic art, such as clay and glaze, have become the drivers for ceramic sculptors to draw attention in funk art.

• The Journal of Korean Academic Society of Nursing Education
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• v.29 no.3
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• pp.247-262
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• 2023

Purpose: This study aimed to identify the types of perception toward non-face-to-face clinical practice and to characterize the types of students who experienced online clinical practice during the coronavirus disease 2019 (COVID-19) pandemic. Methods: Q-methodology was used in this study, and 270 Q populations were formed based on in-depth interviews with 10 nursing students who had experienced non-face-to-face clinical practice, as well as related literature. Interviews were performed from August 1 to 31, 2022. A total of 42 Q samples were extracted, and Q sorting was performed on 33 nursing students who had experienced non-face-to-face clinical practice. A Q factor analysis was performed using the PC-QUANL program. Results: The nursing students' perceptions of non-face-to-face clinical practice were classified into the following five types: "future professional competency-focused type," "realistic convenience priority type," "task burden awareness type," "negative critic type," and "limited experience dissatisfaction type." Conclusion: This study revealed non-face-to-face clinical practice's positive and negative aspects in nursing education. Moreover, it identified the aspects of clinical practice that cannot be replaced by non-face-to-face clinical practice and the elements of non-face-to-face practice that can complement clinical practice. These findings can be used as fundamental data to establish a stable and efficient system for improving the quality of clinical practice in the post-COVID-19 era and to implement effective non-face-to-face clinical practice according to student types.

• SUVANNABHUMI
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• v.8 no.1
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• pp.121-146
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• 2016

Defining key characteristics of Southeast Asia requires historical interpretation. Southeast Asia is a diverse and complicated region, but some of modern history's "grand narratives" serve to unify its historical experience. At a minimum, the modern history of the region involves decisive encounters with universal religions, the rise of Western colonialism, the experience of world wars, decolonization, and the end of the "cycle of violence". The ability of the region's peoples to adapt to these many challenges and successfully build new nations is a defining feature of Southeast Asia's place in the global stage. This paper will begin with a question: is it possible to develop a hermeneutic of "expedience" as a way to interpret the region's history? That is, rather than regard the region from a purely Western, nationalist, "internalist" point of view, it would be useful to identify a new series of interpretative contexts from which to begin scholarly analysis. In order to contextualize this discussion, the paper will draw upon the writings of figures who explored the region before knowledge about it was shaped by purely colonist or nationalist enterprises. To this end, particular attention will be devoted to exploring some of John Furnivall's ways of conceptualizing Southeast Asia. Investigating Furnivall, a critic of colonialism, will be done in relation to his historical situation. Because Furnivall's ideas have played a pivotal role in the interpretation of Southeast Asia, the paper will highlight the intellectual history of the region in order to ascertain the value of these concepts for subsequent historical interpretation. Ultimately, the task of interpreting the region's history requires a framework which will move beyond the essentializing orientalist categories produced by colonial scholarship and the reactionary nation-building narratives which followed. Instead, by beginning with a mode of historical interpretation that focuses on the many realities of expedience which have been necessary for the region's peoples, it may be possible to write a history which highlights the extraordinarily adaptive quality of Southeast Asia's populations, cultures, and nations. To tell this story, which would at once highlight key characteristics of the region while showing how they developed through historical encounters, would go a long way to capturing Southeast Asia's contribution's to global development.

• Journal of the Semiconductor & Display Technology
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• v.22 no.3
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• pp.112-118
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• 2023

As technology advances, the need for enhanced preparedness against cyber-attacks becomes an increasingly critical problem. Therefore, it is imperative to consider various circumstances and to prepare for cyber-attack strategic technology. This paper proposes a method to solve network security problems by applying reinforcement learning to cyber-security. In general, traditional static cyber-security methods have difficulty effectively responding to modern dynamic attack patterns. To address this, we implement cyber-attack scenarios such as 'Tiny Alpha' and 'Small Alpha' and evaluate the performance of various reinforcement learning methods using Network Attack Simulator, which is a cyber-attack simulation environment based on the gymnasium (formerly Open AI gym) interface. In addition, we experimented with different RL algorithms such as value-based methods (Q-Learning, Deep-Q-Network, and Double Deep-Q-Network) and policy-based methods (Actor-Critic). As a result, we observed that value-based methods with discrete action spaces consistently outperformed policy-based methods with continuous action spaces, demonstrating a performance difference ranging from a minimum of 20.9% to a maximum of 53.2%. This result shows that the scheme not only suggests opportunities for enhancing cybersecurity strategies, but also indicates potential applications in cyber-security education and system validation across a large number of domains such as military, government, and corporate sectors.

• The Journal of the Korea institute of electronic communication sciences
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• v.19 no.1
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• pp.93-104
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• 2024

Demand response is a strategy that encourages customers to adjust their consumption patterns at times of peak demand with the aim to improve the reliability of the power grid and minimize expenses. The integration of renewable energy sources into smart grids poses significant challenges due to their intermittent and unpredictable nature. Demand response strategies, coupled with reinforcement learning techniques, have emerged as promising approaches to address these challenges and optimize grid operations where traditional methods fail to meet such kind of complex requirements. This research focuses on investigating the application of reinforcement learning algorithms in demand response for renewable energy integration. The objectives include optimizing demand-side flexibility, improving renewable energy utilization, and enhancing grid stability. The results emphasize the effectiveness of demand response strategies based on reinforcement learning in enhancing grid flexibility and facilitating the integration of renewable energy.

• The Journal of the Korea Contents Association
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• v.5 no.6
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• pp.193-208
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• 2005

The purpose of this study was to look into Korean film criticism that started during Japanese occupation. It's specifically attempted to shed light on the development and significance of Joseon film criticism and on film movement theory as part of the history of Korean early modern film criticism. When kino-drama that could be called the start of Joseon movies was popular, enlightenment-based view of movie was rampant due to the inflow of western civilization and modernistic consciousness. Afterwards, the nature of movie itself drew a lot of attention from contemporary people in the silent picture days, and there appeared a critical trend in pursuit of artistry. Diverse criteria of criticism about reality and representation were presented, and a lot of disputes were eventually stirred up. Thus, criticism started to make a progress. A proletarian film movement theory, the so-called KAPF film campaign that was prevalent from the mid-1920s to the mid-1930s, was one of leading contemporary movie theories and took the lead in critic community. That had a great impact on the entire Joseon film circles. That took a proletarian view of movie, which was based on Bolshevik theory of Popularization and dialectic historical materialism. their criticism made a contribution to providing information on foreign movies and theories and to presenting main principles and multiple alternatives toward film organization and playing.

• Journal of Science of Art and Design
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• v.10
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• pp.111-159
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• 2006

The study is to examine the concept, origin, developmental process, and characteristics of 'Kioonsangdong,' or 'lively energy' to look into whether 'Kioon' maybe interpreted by modern sense and sensitivity and be applied to contemporary creative activities, and to explore whether the ideality of 'Kioon' may be transferred into visualization in pictures. The article defines the scope of 'Ki' as 'Ki(energy)' of artistry and sees the Wei, Chin and the South & North dynasties as its derived point. In Chapter I, before the examination of 'Kioon,' 'the relationship of Ki and Oon,' and 'interrelationship of Kioon (energy) and Sangdong (liveliness) are investigated. It is impossible to define Kioon in a word due to its being abstract. Thus, although it does not seem to be unlimited, focusing on putting a variety of concepts of Kioonsangdong in order, it classifies the subject, from which such Kioon reveals itself, into 'its former self,' things of the object,' 'character,' and 'brush and Chinese ink.' Then, with selected representative works for each category, it examines how Kioonsangdong is reflected in the works. In addition, it comprehensively argues on Kioon through presenting the points of Kioon theories by many an art critic and artist from the Wei, Chin and the South & North dynasties to modem China. In Chapter II, the study analyzes the Kioon-reflected works that have been examined in Chapter 1 in the light of the Kioon theories of 'blanks,' 'styles of brushmanship,' and 'techniques of Chinese ink,' and by selecting and analyzing representative artists and works in each era, it investigates how Kioon had been transformed as times had changed. In Chapter III, which is the core of the study, is on contemporary interpretations of Kioon. I intend to interpret Kioon as scent. In other words, through replacing abstract Kioon with the olfactory sense, actually realizing and forming it, and then visualizing it onto my own work, I attempt to grope for contemporary interpretations of Kioon. That is to say, I explain how Kioon is transformed into scent on the grounds that the origins of Kioon may be detected in literature and aesthetics. Besides, the study looks into the process that 'the scent of the olfactory sense' turns into 'the scent of art,' which I assert by contemporary interpretations, and shows in details that it may be visualized in pictures presenting quotes. In Chapter IV, it analyzes Kioonsangdong expressed visually as the scent of art in my own work in terms of the three techniques of blanks, brushmanship, and Chinese ink.

• The Journal of Art Theory & Practice
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• no.1
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• pp.49-70
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• 2003

What is an exhibition? Is it of the system which is designed to serve Art Works in their representation, or is it a place where the artistic presentation could be considered as art work itself? After modernist era, the role of exhibitional space might have been shifted from those two principle raison d'$\^{e}$tre of exhibitional space into another, a new one. What Deleuze would call it as he borrowed the term from Spinozian philosophy : the Affectional Space. This new type of exhibitional space has been announced since 1969 when a Harald Szeeman, young independent curator and art critic from Swiss, has organized his brilliant exhibition "When Attitudes become Form" in Bern. For sure, these intensities in curatorial practices have been existing before like some early 20th century exhibitional efforts by Marcel Duchamp, El Lissitzky, Yve Klein, etc. It has influenced much on many of, otherwise most of contemporary art exhibiting practices. And now it seems to be necessary to give it a conceptual idea which could enlighten better the new paradigm of exhibitional practices that we try to clarify. I would propose the idea of that new exhibitional space as "space of non-organic becoming". This idea is inspired by Deleuze's ever famous philosophical work Thousand Plateaus, which, with Folds by the same author, has contributed to many contemporary and aesthetical debating issues. What is "affect"? Explaining about Spinoza's principle concepts, Deleuze defines it as a kind of durations or variations which are constituted by different levels of perfection. One perfection is precedented or followed by certain perfection bigger or lesser through lived transitions or passages. So each time it actualizes and reflects the state of All as a cut of Reality while each state of affections, images or ideas can not be separated from the duration which binds it to the precedent state and extends it to following one. Affect is also a term of changes. One affects at the same time it is affected. Exhibitional space as affect (or affectional space) is distinguished from representational and presentational space in the way it attributes movement, produces arrangements and generates new factors of artistic creation including those which are outside of ever accepted artistic elements. The concepts of affectional space are used especially to enlighten contemporary situation of artistic and curatorial processes. Art is no more limited to be seen as mere objects of aesthetical admiration, nor as art vis-$\`{a}$-vis art relationship apart from the whole. It includes possibilities and virtuality that appear in the imperceptible and undescribable manners if delimited in given language. As once noticed by Kuhn, we might be living in a paradigmatically shifting world, not only in Art but also in Life. And we need to express it more with Art as moving and affectional nods than as just a clean window or a distinct manual book.