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Artificial Agent-based Bargaining Game considering the Cost incurred in the Bargaining Stage (교섭 단계에서 발생하는 비용을 고려한 인공 에이전트 기반 교섭 게임)

  • Lee, Sangwook
    • The Journal of the Korea Contents Association
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    • v.20 no.11
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    • pp.292-300
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    • 2020
  • According to the development of artificial intelligence technology, attempts have been made to interpret phenomena in various fields of the real world such as economic, social, and scientific fields through computer simulations using virtual artificial agents. In the existing artificial agent-based bargaining game analysis, there was a problem that did not reflect the cost incurred when the stage progresses in the real-world bargaining game and the depreciation of the bargaining target over time. This study intends to observe the effect on the bargaining game by adding the cost incurred in the bargaining stage and depreciation of the bargaining target over time (bargaining cost) to the previous artificial agent-based bargaining game model. As a result of the experiment, it was observed that as the cost incurred in the bargaining stage increased, the two artificial agents participating in the game had a share close to half the ratio and tried to conclude the negotiation in the early stage.

Development of Structural Analysis and Pre-post Program for Mega Frame System (초대형 골조시스템 전용 전후처리 및 해석프로그램의 개발)

  • Kim Hyun-Su;Lee Dong-Guen
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.19 no.3 s.73
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    • pp.283-293
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    • 2006
  • Recently, various types of structural systems for skyscrapers are studied as the height and size of the building structures rapidly increase due to social and economical needs. The mega frame system among them, which is the structural system developed recently, is known as a suitable structural system for skyscrapers because this structural system has sufficient stiffness against the lateral forces by combination of mega members which consist of many columns and girders. Since the mega frame structure has significant numbers of elements and nodes, it takes tremendous times and computer memories to analyze and design the structures. Therefore, the exclusive structural analysis program for mega frame system is developed to reduce the efforts and time required for the analysis and design of mega frame structure. To this end, an efficient modelling technique using the characteristics of mega frame structures and an efficient analytical model, which uses a few DOFs selected by the user using the matrix condensation method, are developed in this study. Static and dynamic analyses are conducted using an example structure. The effectiveness and accuracy of the developed program we verified by the comparison between the results of the proposed method and the conventional method.

LBS 응용 모바일 서비스의 사용 요인에 관한 실증적 연구

  • Im, Gi-Heung
    • 한국디지털정책학회:학술대회논문집
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    • 2005.06a
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    • pp.107-143
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    • 2005
  • Mobile service that geography, position by development of space Information Technology and technology of communications, space are various to us now becoming limelight as point contents and infra information that customers do demand based on radio superhigh speed authentication net on highly information society by offer infringement problem about individual's privacy or information by political and scientific interest be injured. Purpose of this study grasps use factor of LBS application Mobile service, and it is that analyze actual proof through questionnaire to grasp whether some relation is with value and action determination that is felt of LBS application Mobile service. Distributed all question of 190 copies but disk floret inclination did valid data 171 that clear question and omission remove a lot of questions by type of study among questionnaire of collected 182 wealths. Analyzed factor analysis and authoritativeness to search validity and confidence of questionnaire and used single regression analysis and multiple regression analysis for hypothetical verification. According to verification result, Mobile service that apply position base service usefulness and system quality, adaptedness of Mobile service that apply position base service by leading person affecting in use, acted for connection healthy and felt value is important factor immediately. Usability and social effect, felt expense, privacy did not appear by leading person that keep in mind in this study. Is been related with step that Mobile service that apply position base service is placed. That is, as present childhood, a person who have experience that use service to look for friend is few and usability fairly in last in wide application boundary and this very important person was removed finally in model. This study has sense in terms of study systematically about LBS application service use leading person that is getting into the spotlight worldwide among Mobile service that is injured newly.

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Is Sorting Hat in Harry Potter Identity Identifier for Adolescents?

  • Bahn, Geon Ho;Sun, Je Young Hannah;Hwangbo, Ram;Hong, Minha;Park, Jin Cheol;Cho, Seong Woo
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.28 no.1
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    • pp.38-43
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    • 2017
  • This study analyzes the role of the Sorting Hat in structuring the identity of the characters in the Harry Potter series written by J. K. Rowling. In the different stages of adolescence, one explores and re-establishes one's identity. One's sense of identity is determined by the commitments made regarding personal and social traits. However, it is difficult to establish a concrete identity formation process theory that is communicable to adolescents. In Harry Potter, the characters' identities are reflected upon the Sorting Hat and are continuously molded throughout the book. The Sorting Hat provides nurturing experiences based on temperament. Based primarily on their temperament, it sorts the students into four houses, each with their own distinct characteristics. Once sorted, the houses become the living and learning communities in which the students share the same dormitory and classes until their graduation. Within the community, the students seek connections, supportive relationships, and understanding within the group. The taking on of the group identity is an explanatory variable in the formation of individual identity. The Sorting Hat provides the students with stability and a safe boundary. After being sorted based on their temperament, the inexperienced and immature adolescents can explore different options under the guidance of the Hat before making a definite commitment. By presenting them with an appropriate environment (such as a mentor, friend, or family member), the Hat further shapes their identity and integrates the identity elements ascribed in the beginning. By providing experiences and interactions based on their unique temperament and environment, the Sorting Hat plays a crucial role in establishing the students' identities. The Sorting Hat can be an ideal model for finding one's identity during adolescence.

A Fundamental Study on the Database of Response History for Historical Earthquake Records on the Korean Peninsula (한반도 과거 지진기록에 대한 응답이력 데이터베이스 구축 기초 연구)

  • Choi, Inhyeok;Ahn, Jae-Kwang;Kwak, Dongyoup
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.39 no.6
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    • pp.821-831
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    • 2019
  • The 9.12 earthquake (2016.9.12., ML=5.8) and Pohang (2017.11.15., ML=5.4) caused social and economic damage, resulting in a greater public interest in earthquakes than in the past. In the U.S., Japan and Chile, which have high frequency of earthquakes, infrastructure facilities are already managed based on probabilistic seismic hazard analysis (PSHA) and ground motion prediction equation (GMPE) to prepare for and respond to seismic disasters. In South Korea, the aforementioned PSHA and GMPE models have been developed independently through individual researchers. However, the limited disclosure of basic data, calculation methods, and final results created during the model development poses a problem of deploying new data without updating the earthquake that occurs every year. Therefore, this paper describes how to create flatfile, which is the basic data of GMPE, and how to process for seismic waves, and how to create intensity measures.

A Survey of the Transmission-Power-Control Schemes in Wireless Body-Sensor Networks

  • Lee, Woosik;Kim, Heeyoul;Hong, Min;Kang, Min-Goo;Jeong, Seung Ryul;Kim, Namgi
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.12 no.4
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    • pp.1854-1868
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    • 2018
  • A wireless body-sensor network (WBSN) refers to a network-configured environment in which sensors are placed on both the inside and outside of the human body. The sensors are much smaller and the energy is more constrained when compared to traditional wireless sensor network (WSN) environments. The critical nature of the energy-constraint issue in WBSN environments has led to numerous studies on the reduction of energy consumption of WBSN sensors. The transmission-power-control (TPC) technique adjusts the transmission-power level (TPL) of sensors in the WBSN and reduces the energy consumption that occurs during communications. To elaborate, when transmission sensors and reception sensors are placed in various parts of the human body, the transmission sensors regularly send sensor data to the reception sensors. As the reception sensors receive data from the transmission sensors, real-time measurements of the received signal-strength indication (RSSI), which is the value that indicates the channel status, are taken to determine the TPL that suits the current-channel status. This TPL information is then sent back to the transmission sensors. The transmission sensors adjust their current TPL based on the TPL that they receive from the reception sensors. The initial TPC algorithm made linear or binary adjustments using only the information of the current-channel status. However, because various data in the WBSN environment can be utilized to create a more efficient TPC algorithm, many different types of TPC algorithms that combine human movements or fuse TPC with other algorithms have emerged. This paper defines and discusses the design and development process of an efficient TPC algorithm for WBSNs. We will describe the WBSN characteristics, model, and closed-loop mechanism, followed by an examination of recent TPC studies.

The Effects of Infant Teacher's Job Characteristics on Job Satisfaction -Focusing on Moderating Effects of the Type of Institute- (유아교사의 직무요인이 직무만족에 미치는 영향에 관한 연구 - 기관유형에 따른 조절효과를 중심으로 -)

  • Kim, Kyung-Sook
    • Journal of the Korea Society of Computer and Information
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    • v.20 no.3
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    • pp.177-184
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    • 2015
  • This study aims to identify the effects of job factors related to children's teachers on job satisfaction and present suggestions through an analysis of the modulating effects according to the type of institute. In order to achieve this purpose, this study set up a cause and effect model on teacher's efficacy, emotional intelligence, friendship, and a reward system as factors of job satisfaction and analysed them based on interviews using a questionnaire. To look into the results of the analysis, it was discovered that a reward system had the greatest effect on job satisfaction for the subjects, followed by emotional intelligence, friendship, and teacher's efficacy. In an analysis of modulating effects according to the type of institute, the effect of emotional intelligence differed significantly depending on kindergartens and day care centers. Teacher's efficacy, friendship and a reward system were not significantly different. Based on the results above, this study provides basic data for the development of strategies for children's teachers to effectively achieve job satisfaction.

Significance and Limitations of Chinese Rural Villages Reconstruction - Focusing on the Critical Study on'Farmers' Upstairs(農民上樓)' Phenomenon - (중국 농촌마을 재편의 의의와 한계 - '농민상루(農民上樓)' 현상에 대한 비판적 고찰을 중심으로 -)

  • Park, Kyong-Cheol
    • Journal of Agricultural Extension & Community Development
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    • v.22 no.2
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    • pp.191-203
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    • 2015
  • The purposes of this study are to explain the background and significance of the 'Farmers' upstairs'(農民上樓) phenomenon which has been currently promoted as part of the "New Socialist Countryside Construction" in contemporary China, and its positive and negative aspects, and analyze the limitations of 'Farmers' upstairs'phenomenon. 'Farmers' upstairs'means the building of concentrated farmhouses by means of reconstruction of scattered farmhouses here and there, simultaneously by installing cultural, social welfare, and environmental facilities where rural farmer also could enjoy the convenience of urban living. It brings, however, the positive effects such as the improvement of living conditions of rural farmers, the simultaneously expanding of urban construction land and agricultural land, and the new influx of population from urban areas, whiles the negative effectives such as the forced demolition of farmhouses by governments or real estate developers with very lower compensation costs for the demolition of farmhouses, the gap from the standard of living, and above all, the inconvenience caused by the living in a multi-stories building in the rural villages. As a result, it is pointed out that the ongoing 'Farmers' upstairs', promoted as a kind of rural movement beyond a phenomenon, has similarities with the Rural Cooperative Movement(農村合作化運動) of Mao Zedong era(1953-61), namely the People's Commune Movement(人民公社運動) finally failed.

Effectiveness of Web-Based On-line Corporate Education: The Case of 'L' Company (웹기반 온라인 기업교육의 성과에 관한 연구: L기업의 사례를 중심으로)

  • Ryu, Il;Kim, Jae-Jon;Cho, Young-Man
    • Information Systems Review
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    • v.5 no.1
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    • pp.33-48
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    • 2003
  • The increasing demand for the distance learning has created a need to explore the implications of the emerging paradigm shift in the learning environment. For the use of information technology to improve learning processes, the pedagogical assumptions underlying the design of information technology for educational purposes must be understood. However, little theoretical development or empirical research has examined learning effectiveness in web-based distance learning. Thus, this paper reviews from research in management communications, education, social psychology, and information systems literatures to develop an conceptual model of influences on web-based corporate education outcomes. The hypotheses empirically examined using survey data from 152 students of 'L' company. The data support the validity and reliability of our constructs. And the hypotheses of this study get partially significant support. Finally, the implications of this survey results are discussed in terms of learning performance.

A Study on a Design for the Korean Coast Guard Uniform (한국 해양경찰복제 디자인 연구)

  • Lee, Jae-Jung;Kim, Youn-Hee
    • Journal of the Korean Society of Costume
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    • v.61 no.5
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    • pp.1-20
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    • 2011
  • As a follow-up of a study on design strategies to improve Korea's Korean coast guarduniforms, this study set out to propose Korean coast guard uniforms of a new concept that would meet the changing needs of the times and match the advanced technology and work environments. Three concepts of classical, nautical and techno chic were identified from the design strategies of the previous study. Using the results from a prototype show and preference survey, the investigator divided items into design, color, material, and detail and reflects demands for each of them. As a result, design was examined in four aspects of identity, acknowledgement, unity, and practicality and focused its improvement factors on design differentiated from other organizations' uniforms including ground police, segmentation of size system, adjustment of the length of upper garment to consider activity, and changes to the lines and silhouette to give out a modern image. As for color, the focus was placed on differentiated colors from other organizations' uniforms including ground police through dark blue and ocean color, change toward colors that reflect environmental characteristics, and unity in colors between the summer and winter uniform. As for material, the focus of improvement was put on elasticity, resistance against contamination, warmth retention, texture, wearing sensation, and functionality by taking into account convenience for field workers on coast guard vessels and branch offices who have much time in contact with ocean environments in order to make the materials high-grade. As for detail, structural details were added to give out a modern image such as changing the detail lines, efficiency of storage space, buttons, sleeve hems, ironing lines, and neck collars by taking into account environmental characteristics. The significance of the study lies in that it proposed a development model for large-scale uniform copy design by establishing copy design that secures functionality and is proper for an organization's social and cultural environment.