가상현실 기반 건설안전교육이 건설근로자의 학습효과에 미치는 영향 - CAMIL 이론을 활용하여 -

박현수,구충완,Park, Hyunsoo,Koo, Choongwan 한국건설관리학회 2022 한국건설관리학회 논문집 Vol.23 No.3

Safety accidents in the construction industry account for the highest percentage of all industries; and thus, it is encouraged to introduce a virtual reality (VR)-based experiential education system into the basic occupational safety and health training for construction as a way to solve the problem. However, there are some limitations such as a lack of competent workforce, and insufficient content and equipment for VR-based construction safety education. In this background, this study aimed to analyze the difference in learning effect between the CG-based experiential VR education (direct method, type B) and the existing photo-based audiovisual VR education (indirect method, type A), in which a CAMIL (Cognitive & Affective Model of Immersive Learning) theory was used as objective assessment tool. The learning effect of the direct education method (type B) was found to be superior to that of the indirect education method (type A) in terms of all areas in the CAMIL theory. It is expected that the VR-based experiential construction safety education will increase the learning effect of construction workers.

일반 비디오 게임 플레이 인공지능을 위한 GreedyUCB1기반 몬테카를로 트리 탐색

박현수(Hyunsoo Park),김현태(HyunTae Kim),김경중(KyungJoong Kim) 한국정보과학회 2015 정보과학회 컴퓨팅의 실제 논문지 Vol.21 No.8

보통의 인공지능 시스템은 특정 작업을 수행하기 위해 설계되며, 해당 작업만을 수행하는 능력을 가진다. 그에 반해 인공 일반지능이란 설계 당시 목표로 한 작업만이 아니라 새로 접하는 다양한 문제에도 대응할 수 있는 인공지능을 의미한다. 최근 게임 인공지능 분야의 일반지능 문제인 General Video Game Playing에 대한 관심이 높아지고 있다. 비디오 게임으로 범위가 제한되었지만, 다양한 형태의 비디오 게임을 플레이 할 수 있는 단일 인공지능을 설계하는 것은 상당히 도전적인 문제이다. 본 논문에서는 Monte-Carlo Tree Search를 이용하는 기존 비디오 게임을 위한 인공 일반지능을 개선하는 방법에 대해 기술한다. 여기서는 UCB1 알고리즘을 문제에 적합하도록 개선한 GreedyUCB1과 게임 분석을 통해 얻은 지식을 활용한 Rollout 방법을 제안한다. 제안한 방법으로 개발된 인공지능은 국제 학술대회인 IEEE Computational Intelligence in Games의 2014년 인공지능 경진 대회에 출전하여 4위의 성적을 보였다. Generally, the existing Artificial Intelligence (AI) systems were designed for specific purposes and their capabilities handle only specific problems. Alternatively, Artificial General Intelligence can solve new problems as well as those that are already known. Recently, General Video Game Playing the game AI version of General Artificial Intelligence, has garnered a large amount of interest among Game Artificial Intelligence communities. Although video games are the sole concern, the design of a single AI that is capable of playing various video games is not an easy process. In this paper, we propose a GreedyUCB1 algorithm and rollout method that were formulated using the knowledge from a game analysis for the Monte-Carlo Tree Search game AI. An AI that used our method was ranked fourth at the GVG-AI (General Video Game-Artificial Intelligence) competition of the IEEE international conference of CIG (Computational Intelligence in Games) 2014.

파이썬 언어의 바이트 코드수준 진화를 이용한 유전 프로그래밍

박현수(Hyunsoo Park),김경중(Kyungjoong Kim) 한국정보과학회 2011 한국정보과학회 학술발표논문집 Vol.38 No.2B

Genetic Programming은 자동으로 프로그램을 작성하는 기법으로 많은 가능성을 지니고 있다. 하지만 아직까지 고차원 프로그래밍 언어 수준에서 진화는 이루어지지 못하고 있다. 하지만 최근 들어 한단계 아래인 JAVA Baytecode를 이용한 진화가 몇몇 문제를 해결할 수 있는 가능성을 보여주고 있다. 본 연구에서는 최근 관심을 많이 받고 있는 프로그래밍 언어중의 하나인 Python의 Bytecode를 자동으로 진화하는 방법을 제안한다. 본 연구를 통해 JAVA와는 또 다른 형태의 언어인 Python언어에서의 Bytecode수준의 진화 가능성을 살펴본다. 두 가지 형태의 회귀문제를 통해 성능을 평가해 보았으며 자동으로 Python Bytecode를 작성할 수 있음을 보였다.

옥외 전광판 설치를 위한 최적 지역 선정 사례연구 : 평가 척도의 개발과 후보지 평가 결과

박현수(Hyunsoo Park),서범석(Bubseok Seo) 한국옥외광고학회 2008 OOH광고학연구 Vol.5 No.3

본 연구는 국내에서 텔레비전과 신문에 이어 가장 많은 광고비가 투입되고 있는 옥외매체에서 전광판 설치를 위한 최적 지역 선정의 사례연구와 평가를 위한 척도개발에 초점을 두고 있다. 이를 위해 전문가 인터뷰와 설문조사 그리고 문헌연구를 통해 전광판의 노출효과 평가를 위한 항목들을 요인분석을 통해 추출했으며, 이를 다시 총 분산에서 각각의 요인이 차지하는 비율을 기준으로 평가 가중치를 도출하였다. 이렇게 도출된 평가 척도와 기준은 후보지로 희망한 11개 지역에 적용되어 각각의 후보지역에 대한 평가결과가 산출되었다. 평가결과에 대한 분석은 후보지의 법적 환경적 요인들의 고려와 함께 최적 후보지를 추천하였다. 연구결과 옥외광고 효과 측정을 위해 제안된 척도와 기준들은 노출효과 평가에서 유용하게 활용될 수 있는 가능성을 보여주었다. Even though the outdoor advertising in South Korea has been growing fast, the appropriate methods to measure outdoor advertising effects has not been exploited yet. The main purpose of this study is to examine the appropriate process to develop evaluation measure for outdoor advertising in South Korea. This case study is to evaluate the real 11 proposed sites with the developed scales and factors to reach the best place. Literature review, in-depth interview with 10 outdoor advertising experts and a survey were conducted to enlist the evaluation factors for outdoor bulletin. Then factor analysis was conducted to finalize the items to be used. The final set of items were used with the weight value calculated from the statistical procedure. Finally, related laws and environmental situation were also applied to exclude any possible difficulties.

프로이드의 욕망이론에 비춰본 『앤토니와 클레오파트라』

박현수(Hyunsoo Park) 한국셰익스피어학회 2003 셰익스피어 비평 Vol.39 No.1

In Antony and Cleopatra it is quite interesting to convey a psychoanalytic view of conflicting judgements between desire and morality, or Id and Superego. Antony and Cleopatra are tackling with the themes-self and identity, reality and ideology-throughout their actions. Their mental dilemma in connection with their surrounding circumstances has extended through their meditation and described the fruit of their repeated thinking in struggling for their achievements of desire. Antony is largely concerned with Cleopatra relieving himself from the nightmare of his unexpected disaster in Rome. There is the view, with which the play opens, of those who speak badly of Antony's stay with Cleopatra in Egypt. But the lustful attitude, Antony is attached to, is strongly represented in the play, and there are repeated references to 'lascivious wassails,' 'the amorous surfeiter,' 'salt Cleopatra,' 'the adulterous Antony' who shows his potential attitude toward his private life. Antony and Cleopatra is an account of conflicting story in terms of the World and the Flesh, Rome and Egypt, the two great contraries that maintain and destroy each other, considered apart from any other people that might stand over against them. If readers find, rightly, that there is something both vague and strained about all these accounts, perhaps that is because a remarkable fact about the bond between Antony and Cleopatra has been consistently overlooked. Whether the bond in question is love, or passion, or both, it is neither of these which the lovers themselves mainly bring to light when they speak of each other or of what is between them. Antony's love has caused him considerable anguish even in the first part of the playas he tries to free himself. Octavia, though not glamorous, is presented as the ideal wife, but Cleopatra has spoiled Antony for marriage. Cleopatra strikes the messenger from Rome who tells her that Octavia has married Antony; Cleopatra suffers extremes of rage which Alexas remarks are characteristic of her. Cleopatra's lament over the dying Antony, her statement of his greatness and bounty, have perhaps considered too heavily in the thoughts that many people have taken from the playas a whole. But the almost unbearable sadness of the last scenes is for what has not in fact been overlooked. It is, of course, one of the signs of a great writer that he can afford to evoke sympathy or even admiration for what, in his final judgement, is discarded or condemned. In Antony and Cleopatra the sense of potential passion between a man and a woman is radically expressed to its climax, and Shakespeare gives the maximum weight to an actual experience that is finally revealed with the death of both.

『안토니와 클레오파트라』에 나타난 욕망과 도덕성의 갈등의 기상도

박현수(Hyunsoo Park) 한국셰익스피어학회 2002 셰익스피어 비평 Vol.38 No.2

In Antony and Cleopatra we are never in any doubt of our moral bearings. And it embodies different and apparently irreconcilable judgements between desire and morality of our practical experience. There is the view, with which the play opens, of those who speak badly of Antony's stay with Cleopatra in Egypt. But the lustful attitude, Antony is attached to, is strongly represented in the play, and there are repeated references to 'lascivious wassails', 'the amorous surfeiter', 'salt Cleopatra', 'the adulterous Antony' who shows his potential attitude toward his private life. Antony and Cleopatra is an account of conflicting story in terms of the Desire and the Morality, Rome and Egypt, the two great contraries that maintain and destroy each other, considered apart from any other people that might stand over against them. If readers find, rightly, that there is something both vague and strained about all these accounts, perhaps that is because a remarkable fact about the bond between Antony and Cleopatera has been consistently overlooked. Whether the bond in question is love, or passion, or both, it is neither of these which the lovers themselves mainly bring to light when they speak of each other or of what is between them. Most critics have tried to express how the relation between Antony and Cleopatra can be variously seen from many different viewpoints. Mr. Bradley, who said that from one point of view the play was Shakespeare's supreme expression of love as value, also said that to see it as depicting a senseless surrender to passion was defensible. Whether Antony and Cleopatra's lust, or love, or something of both, is probably a matter on which complete agreement cannot be expected. Men use these words as they are guided not only by their sense of value, but also by their experience of life; both of these are liable to much variation, and the critic may find that opportunities for augmenting the second are, in his case, slight, past or unwelcome. Cleopatra's lament over te dying Antony, her statement of his greatness and bounty, have perhaps considered too heavily in the thoughts that many people have taken from the play as a whole. But the almost unbearable sadness of the last scenes is for what has not in fact been overlooked. It is, of course, one of the signs of a great writer that he can afford to evoke sympathy or even admiration for what, in his final judgement, is discarded or condemned. In Antony and Cleopatra the sense of potential passion between a man and a woman is radically expressed to its climax, and Shakespeare gives the maximum weight to an actual experience that is finally revealed with the death of both. For Shakespeare has chosen as his tragic theme the impulse that man perhaps most readily associates with a heightened sense of adult life with true marriage. It has not seemed necessary here to explore the range and depth of the passion in which the theme of vital activities resulting with frustration, or entangling itself with social life; but it is, of course, the range and depth of the passion that makes Antony and Cleopatra into universal figures.

평균 및 최악 분석 진화전략을 이용한 소자 값 변경에 강건한 아날로그 회로 자동 설계

박현수(Hyunsoo Park),박아름(Arum Park),김경중(Kyungjoong Kim) 한국정보과학회 2012 한국정보과학회 학술발표논문집 Vol.39 No.1B

아날로그 회로는 가장 기본적인 전기/전자 회로로써 현재도 높은 중요도를 가지고 있지만, 설계를 위해서는 전문적인 지식이나 기술이 반드시 필요하다. 그래서, 아날로그 회로를 설계하기 위해 진화 연산을 이용한 기법이 연구되어 왔다. 진화연산은 최적화 문제를 해결하는 한 방법으로써 다양한 문제에 적용 가능하다. 하지만, 많은 경우 매우 오랜 시간이 걸려 재현이 어렵고 계산비용이 많이 요구되어왔다. 하지만, 최근 들어 진화전략을 이용하여 작은 집단 크기로 아날로그 회로를 진화시킬 수 있는 방법이 제안되었다. 본 연구에서는 진화전략을 이용한 방법에 기반하여, 내고장성을 가진 회로를 설계하는 기법을 제안하고, 실험을 통하여 기본 진화전략 알고리즘과 비교한다. 그 결과, 제안한 방법을 통해 생성한 회로는 기본 알고리즘을 사용했을 때 보다 고장으로 인해 소자의 값이 변경되었을 때 성능하락이 더 적었다.

전기이륜차 제어기 PCE와 기밀 성능과의 관계 연구

박현수(Hyunsoo Park),이도영(Doyoung Lee),우성종(Sungjong Woo) 한국자동차공학회 2023 한국자동차공학회 부문종합 학술대회 Vol.2023 No.5

Recently, electric motorcycle is being actively developed in the motorcycle industry. Due to the characteristics of motorcycle, they are placed in an environment that is more exposed to external moisture and pollutants (dust, mud, salt and oil) compared to four-wheeled vehicles. Therefore, electric motorcycle parts are designed as a waterproof type to protect the product. In the case of a waterproof type controller, it is designed to secure airtightness by installing an air vent device such as PCE (Pressure Compensation Element). It can take balancing internal/external pressure in the product, protect electronic components, prevent corrosion and malfunction by reducing dew condensation, and prevent harmful gas accumulation with excellent ventilation. In this paper, it was conducted to determine how the absence of PCE would affect confidentiality performance.

개별 그래핀 플레이크의 전기전도도 측정

박현수(Hyunsoo Park),석지원(Ji Won Suk) 대한기계학회 2018 대한기계학회 춘추학술대회 Vol.2018 No.12

지상파TV 광고시청률 예측을 통한 방송광고캠페인 누적빈도분포 추정에 대한 연구

박현수(Hyunsoo Park),이서용(Seoyong Lee),남현주(Hyunju Nam),윤재웅(Jaewoong Yoon) SBS 2013 미디어경제와 문화 Vol.11 No.3

본 연구는 지상파TV 방송광고캠페인의 노출효과를 예측하고, 누적빈도분포의 추정을 통해 방송광고캠페인의 비히클별 노출효과를 예측하였다. 그리고 실제 집행결과 누적빈도분포와 연구에서 예측된 누적빈도분포를 비교하여 오차를 확인하였다. 광고시청률을 예측하는 과정에서는 회귀모형과 시계열모형(ARIMA/지수평활), 데이터마이닝(신경망) 모형을 사용하여 어떠한 모형의 예측정확도가 높은가를 평가하였다. 연구결과, 광고시청률 예측에서 회귀모형과 데이터마이닝(신경망) 모형의 예측정확도가 높은 것으로 나타났고, 4가지 모형의 시청률 예측결과와 BBD 모델을 활용하여 캠페인들의 누적빈도분포를 추정한 결과도 지상파TV 방송광고캠페인의 기획에서 광고시청률 예측과 미디어 모델의 활용을 통해 캠페인의 누적빈도분포 추정이 가능하다는 것을 보여 준다. The main purpose of this study is to investigate the exposure effect of network TV advertising campaigns. Advertising campaign exposure effects such as cumulative frequency distributions using the forecasted TV advertising ratings and media model are estimated and statistically examined. Four different forecasting methods are used to predict advertising ratings in Korea. The four different methods applied are regression model, time series model(ARIMA/exponetial smoothing), and neural network model. The estimated exposure distributions using media model based on BBD are also compared with actual cumulative frequency distributions provided by the AGB Nielsen Co. The results shows that there is only a marginal gap between actual cumulative frequency distribution and predicted cumulative frequency distribution. The possibility of estimating cumulative frequency distribution using the predicted advertising ratings and media models are verified in this study.