• The Journal of Society for e-Business Studies
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• v.27 no.1
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• pp.63-79
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• 2022

Recently, various studies have been conducted on stock price prediction using machine learning and deep learning techniques. Among these studies, the latest studies have attempted to predict stock prices using limit order books, which contain buy and sell order information of stocks. However, most of the studies using limit order books consider only the trend of limit order books over the most recent period of a specified length, and few studies consider both the medium and short term trends of limit order books. Therefore, in this paper, we propose a deep learning-based prediction model that predicts stock price more accurately by considering both the medium and short term trends of limit order books. Moreover, the proposed model considers news headlines during the same period to reflect the qualitative status of the company in the stock price prediction. The proposed model extracts the features of changes in limit order books with CNNs and the features of news headlines using Word2vec, and combines these information to predict whether a particular company's stock will rise or fall the next day. We conducted experiments to predict the daily stock price fluctuations of five stocks (Amazon, Apple, Facebook, Google, Tesla) with the proposed model using the real NASDAQ limit order book data and news headline data, and the proposed model improved the accuracy by up to 17.66%p and the average by 14.47%p on average. In addition, we conducted a simulated investment with the proposed model and earned a minimum of $492.46 and a maximum of $2,840.93 depending on the stock for 21 business days.

• Journal of Practical Agriculture & Fisheries Research
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• v.23 no.2
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• pp.99-111
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• 2021

The connected farm that agricultural land, agricultural machinery and farmer are connected with an IoT gateway is in the commercialization stage. That has increased productivity, efficiency and profitability by intimate information exchange among those. In order to develop the educational program of intelligent agricultural machinery and the agricultural machinery safety education performance indicator, this study analyzed patent trends of agricultural machine with unmanned technology used in agriculture and efficiency technology applied advanced technologies such as ICT, robots and artificial intelligence. We investigated and analyzed patent trends in agricultural machinery of Korea, the USA and Japan as well as the countries in Europe. The United States is an advanced country in the field of unmanned technology and efficiency technology used in agriculture. Agricultural automation technology in Korea is insufficient compared to developed countries, which means rapid technological development is needed. In the sub-fields of field automation technology, path generation and following technology and working machine control technology through environmental awareness have activated.

• The Journal of the Korea Contents Association
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• v.22 no.6
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• pp.386-399
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• 2022

The purpose of this study is to identify how education and activities of urban forest healing programs affect emotional rest (healing recovery environment awareness, restoration of attention, and leisure life satisfaction). To this end, 38 people were divided into experimental groups (forest healing program education and practice), and control groups (non-program participation). As a result of the study, in the case of the experimental group, emotional rest factors such as healing recovery environment perception, attention recovery, and satisfaction with leisure activities after the program were statistically significantly improved, and in the case of the control group, there was no change in emotional rest after the program. In addition, there were differences between groups in both pre and post regarding the difference in emotional rest between the participant groups, and the difference in emotional rest afterwards was much larger than the pre-difference. In conclusion, people who receive regular education on forest healing and have done actual forest healing activities experience higher emotional rest than those who do not. This suggests that continuous motivation and regular practice can raise awareness of the healing recovery environment, promote attention recovery, and have a positive effect on leisure life through appropriate programs rather than simply taking a walk.

• Journal of Internet of Things and Convergence
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• v.8 no.5
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• pp.85-91
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• 2022

In the IOT social environment, which emphasizes the convergence of science and technology and emotion, this study aims to explore the experience and meaning of the experience while participating in the design convergence class based on the operation of the Learning community of Chinese graduate students majoring in design. To this end, an implementation study was conducted by visualizing various research problems using a design-based inquiry method for 12 graduate students attending T University. The design-oriented convergence class was conducted in a small group with content that was deepened into a visual strategy by the expression technique given by the external environment and the learner's own inner motivation. In order to express the perspective and intention of the research problem in the research, the convergence design research expressed using various visual strategies such as metaphorical use and analysis of visual data in the research process and sensory approach to the research problem was presented in a form that expresses the creative thinking process. As a way of exploration, the teaching method of presenting results based on various experiences suggests changes in new teaching formats, practical knowledge sharing by instructors, and community participation by learning participants.

• Journal of the Korea Convergence Society
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• v.12 no.11
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• pp.411-418
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• 2021

The purpose of this study was to identify contents of Taekwon and to improve specialized knowledges and practical abilities for Taekwondo majoring university students. The sample was categorized into college and student. The first round survey was divided into two parts in finding possible ways to improve practical abilities from students and school authority perspectives. The second round was conducted through survey by dividing respondents into students and school authority. The third round was performed to identify the nessessities and problems in relation to specialized knowledge and practical abilities such as sparring, poomsae, and demonstration. Based on the findings, three critical themes were identified: motivating them to accumulate specialized knowledge, providing opportunities to practice, and offering diverse job directions. Students indicated several critical themes such as recognition of job opportunities in different domains, endeavour to increase communication ability with others in different domains, reconsideration to learn things in different domains, and efforts to take an interests in life-time Taekwondo. The findings provide ideas in applying practical knowledge into the field and in changing students' perception in terms of Taekwondo majoring. They are specialized knowledge and practical ability improvement based upon college authority and students (15 college authority items, 9 student items).

• The Journal of the Convergence on Culture Technology
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• v.7 no.2
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• pp.199-206
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• 2021

The three generations of Haenam Yoon, who have been handed down to Gongjae Yoon DuSeo (1668~1715), Yoon DeokHee (1685~1776) and Yoon Yong (1708~1740), were based in Haenam. They had an artistic soul on the stage of Hanyang and succeeded in the art of the family, building a reputation as a family of Seonbi painters representing the late Joseon Dynasty. Born as the eldest son of Gongjae and lived at the age of 82, Rakseo learned a variety of studies, calligraphy and painting from his father and Lee Seo. While learning the paintings of the early and mid Joseon period, and accepting the Namjong painting method, he pursued the realism and three-dimensional sense of the subject by adding a Western-style shading method. In particular, he showed outstanding talent in horse paintings and pottery figures, expressing his original 'Beauty that realistically portrays real scenery'. Cheonggo, who was born as the second son of Rakseo and died at the age of 32, was good at Namjong landscape painting using various tree drawing methods. He painted the original Siuido by changing the topical poems, as well as detailed observations and explorations to accurately describe the facts of the object. In addition, 'Beauty showing affection through realistic scenery' was expressed by newly changing and reinterpreting the tendency of home appliances painting to express the spirit as a form beyond the realistic landscape. Rakseo and Cheonggo father and son made a 'NogUdang' painting style, drastically changing the paintings of the late Joseon Dynasty, and had a great influence on the history of Korean painting.

• Journal of Popular Narrative
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• v.26 no.3
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• pp.255-288
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• 2020

The purpose of this study is to propose 'plot lamination methodology' for planning and analyzing of storytelling. The story contents with a certain volume of narrative might have several important characters. Most of the characters have meaningful influences on the context of the story through their choices and actions as they go through dynamic changes to construct and deconstruct relationships. The plot lamination methodology is the result of an attempt to look at the process from the 'strategic' point of view by focusing on the fact that the main characters with supplementary nature contribute to the independent formation of subplot based on the main plot driven by the protagonist. Regardless of how they live their own unique and autonomous life in the narrative, the main characters hold a relatively subordinate position within the centripetal force of the main plot. Their journeys tend to expand/emphasize/divide up the process of the main plot's 'persuasion via causality,' and also individualize into the functions of emotional sympathy (pathos), moral, ethical perspective (ethos), and rational logic (logos). As such, the subplots of main characters are laminated according to these three functional traits, which could become multi-layered through second or third laminations, depending on the number and roles of other characters. If the plot lamination methodology is further developed through follow-up studies, it will open up the possibilities of the strategic design (planning) and aesthetic criticism (analysis) regarding the procedure of conjugation /branching of subplot and/from the main plot.

• The Journal of the Korea Contents Association
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• v.21 no.11
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• pp.553-564
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• 2021

This study was conducted to understand the effects of participation perception, self-efficacy, self-esteem, and empowerment on self-support intention of self-support work project participants. For this study, a survey was conducted on participants in the self-support work project within the G-gu area. As a result of the study, it was found that the participation perception, self-efficacy, and empowerment of participants in the self-support project had a positive (+) effect on the self-support will. Also, in the process where participants' perceptions of participation, self-efficacy, and self-esteem affect the will to self-support, it was found that empowerment partially mediated participation perception and self-efficacy and fully mediated self-esteem. Based on these results, the following are practical suggestions for improving self-support project participants' will to self-support as follows. First, systematic training courses are needed in the application and selection of recipients, establishment of self-support plans, and gateway training courses so that participants in self-support projects can correctly recognize self-support projects. Second, it is necessary to systematize the case management system provided by the self-help center and re-establish the role in order to strengthen the participants' hope for self-reliance. Third, it is necessary to identify the strengths of the participants in the self-support project, create results for self-support, and operate a program that strengthens the latent motivation to solve their own problems and change their behavior. Fourth, the empowerment of participants and professional ability of practitioners should be strengthened so that participants can solve the alienation and social exclusion experienced in the process of participating in the project.

• Journal of Science Education
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• v.46 no.1
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• pp.53-65
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• 2022

In the application and composition of learning content, the field trip learning of scientific inquiry could provide a positive effect. Also, it can arouse an experience of various inquiry activities through open thinking. In addition, it could take a positive effect by providing the diversity and specificity of wildlife experience for the living organism. The biology inquiry program of the field trip is a necessary process to acquire ecological experiences in the learning context. However, there is some problem to solve before the performance of field trip learning as professional knowledge of the outdoors inquiry. Therefore, this study developed a field trip inquiry program for the plant in a coastal dune using artificial intelligence to assist professional knowledge. The researcher carried out literature reviews and analysis related to studies and programs to investigate learning steps, content, and strategy. Also, this study investigated the effects of the program on the affective domain of gifted elementary science students. According to the results of this study, the program can provide a positive effect on motivation, task commitment, and attitude level. Consequently, the field trip learning program for plant in the coastal dune using artificial intelligence developed in this study can arouse a positive effect on the affective domain. Therefore, additional study is necessary related to inquiry programs of the field trip for various students and sites.

• Journal of Korea Entertainment Industry Association
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• v.14 no.8
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• pp.49-62
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• 2020

Musicals are plays in which songs and dances are closely aligned with the plot development of the play, and songs and dances develop specific situations and a series of events. In particular, songs perform a fuction of causing the significant changes and emotional ventilation and amplification in the play by specifically capturing the goals and actions the characters are aiming for. This paper focuses on the song that takes on the function of the plot deployment, defines songs that embody actions and stories on stage' as 'action songs' and highlights their role and importance. Action Song is not a clearly defined or prescribed term in Musical. However, 'Action Song' is a song about how a character's desire or motivation for action, given as a 'character song' inserted at the beginning of an integrated musical play, provides a conflict that is a central event of action. In other words, 'action song' means a song that organically combines music and narrative by conveying the action on the stage as a song with lyrics. In addition, it is a song that moves the plot forward and contains a series of events or actions that are the material of the plot. This paper is intended to summarize the concept of'Action song which is not well known to us, and to lay the foundation of the stud, learned the concept, function and efficiency by the analyses of script and music of the musical . As a result, action songs accumulate and amplify tension caused by conflicts and induce the audience to immerse in their emotions. At the same time, the action song multiplies fun and interest of the play while the audience's expectation increased for the next scene after the action song and the progression of the play with single action makes the contents of the drama to be understood clearly.