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신품론(神品論)의 유가적(儒家的) 서예미(書藝美) 특징(特徵) 고찰(考察)
박주열 ( Juyeol Park ) 한국동양예술학회 2014 동양예술 Vol.24 No.-
This study analysed Confucian aesthetic features of calligraphy in the theory of the superb work of art based on the theory of four classes, which consists Yi(逸), Shen(神), Miao(妙) and Neng(能), established by HuangXiuFu(黃休復). The theory of superb work of art seems to come from the ‘theory of YiXingXieShen(以形寫神)’ established by GuKaiZhi(顧愷之). To get the utmost class of the superb work of art, the artists should reflect their own spirits after analyzing and acquiring classic methods. Also, they should be thoroughly proficient in the classic method with a God-given talent. The superb work of calligraphy has three features below.The first feature is the beauty of FengShen(風神美). It is very important to analyse the essence of the object and reflect the spirit to show this feature. FengShen(風神) is to reflect the spirits through the emotional communications between subjects and objects. The aesthetic feature of the superb work of art is to show the beauty of FengShen, which is the excellent combination of spirits and shapes by creating a new YiJing(意 境) through the elegant and lucid spirit. The second one is the beauty of ZhongZheng(中正美). In the Confucian aesthetics, ‘Zhong(中)’ has a tremendous value, and ‘Zheng(正)’ as a normative factor is also very important. SunGuoTing(孫過庭) described ZhongZheng(中正) as ‘WeierBuFan(違而不犯)’. If an artwork reaches the stage of ZhongZheng through the stage of PingZheng(平正) and the stage of XianJue(險絶), it could be said to reflect the beauty of ZhongZheng(中正美) well. The third is the beauty of ZhongHe(中和美). The person who practices ZhongHe(中 和) perfectly is called the saint in Confucianism, and to reach the unknown stage after becoming the saint is called Shen(神). The art work which reached the unknown stage after completing ZhongHe(中和) is called the superb work of art. Therefore, the feature of the superb work of art is to show the beauty of ZhongHe(中和).
서위(徐渭)의 이단적(異端的) 서예심미의식(書藝審美意識) 고찰(考察)
박주열 ( Park Juyeol ) 한국동양예술학회 2018 동양예술 Vol.40 No.-
XuWei(徐渭, 1521∼1593) was a talented man who has made various achievements in various fields of art such as poetry, drama, calligraphy and paintings. In the middle and late period of Ming Dynasty, when XuWei has lived, it was confused in the political, social, and economic aspects, and the signs of innovation were shown in each field. He was one of the progressive intellectuals who led the transformation in keeping with the change of the times. In this study, I focused on XuWei who did not afraid of change and established the ingenious art world, and examined his heretical aesthetic consciousness of calligraphy against the trend of the times. XuWei pointed out the evils of the field of literature of the times, such as the retroism and the pseudoclassicism, and argued that the art should reflect the times. He sought to find an alternative to overcome the evils of this retroism in ‘emotion’. His mind was full of wrath and frustration about the absurdity and corruption of society, and he was able to express himself through art. Thus, his poetry revealed a critical awareness of the contradictions of society. His critical consciousness, which emphasized emotion, ultimately manifested itself as an aesthetic consciousness recognizing individuality. Natural Attainment(天成) he emphasized was not the absolute value that applied to everyone, but was to show their own energies. As such, his literary view, critical consciousness, and aesthetic consciousness were all contradictory at the time. If the trend of the times was orthodoxy, all his thoughts and actions were heresy. No matter whether such actions began with a complaint about society or a lamentation about his own situation, he created a big wind of change in the art world of literature, calligraphy and paintings. The fact that he did not afraid of change and pursued it deserves to be highly appreciated even in the present age.
명시적 규제를 활용한 오프라인 강화학습 기반 로봇 밀기 및 파지
신지섭(Jisub Shin),유승환(Seunghwan Yu),박주열(Juyeol Park),박원우(Wonwoo Park),박형근(Hyoung-Geun Park),홍승윤(Seungyoun Hong),김병찬(Byeongchan Kim),윤종완(Jong-Wan Yoon),고병진(Byungjin Ko),박태준(Taejoon Park) 한국정보기술학회 2024 Proceedings of KIIT Conference Vol.2024 No.11
물체가 밀집된 환경에서 로봇 기반 파지 작업은 해결해야 할 도전 과제이다. 이는 밀기와 같은 보조 행동을 통해 파지를 쉽게 수행하도록 도울 수 있으며, 이를 위해 로봇에게는 의사 결정 능력이 필요하다. 이러한 능력은 온라인 강화학습을 통해 학습할 수 있지만, 로봇이 지속적으로 환경과 상호작용하는 과정에서 비용이 크게 발생한다. 이에 대한 대안으로 오프라인 강화학습을 사용하여 상호작용 비용을 완화할 수 있지만, 확률적 경사 하강법의 암묵적 규제가 오프라인 강화학습에 적용되면, 상태-행동 쌍들이 과도하게 유사해지는 문제가 있다.본 논문은 명시적 규제를 적용한 오프라인 강화학습 기반의 밀기 및 파지 모델을 제안한다. 실험 결과, 제안한 모델이 밀집된 물체 환경에서 밀기를 통해 효율적인 파지 작업을 수행할 수 있음을 보인다. Robot-based grasping tasks in dense object environments are a challenging issue that needs to be addressed. Auxiliary tasks, such as pushing, can facilitate grasping, and for this, the robot needs decision-making abilities. These abilities can be learned through online reinforcement learning, but high costs occur as the robot continuously interacts with the environment. As an alternative, offline reinforcement learning can be used to reduce interaction costs, but when stochastic gradient descent’s implicit regularization is applied in offline reinforcement learning, a problem occurs where state-action pairs become overly similar. In this paper, we propose an offline reinforcement learning-based pushing and grasping model with explicit regularizer. Our experiments results show that the proposed model is suitable for pushing and grasping task in dense object environments.