• Journal of the Korea Society of Computer and Information
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• v.27 no.12
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• pp.85-92
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• 2022

In this study, we aim to design an action game that increases the user experience. In order to increase the immersion of the game, the characteristics of the game used by the user were analyzed, and the systemic and visual characteristics of the game were designed with reference to each characteristic. The proposed method uses Unity 3D to implement an interaction system between objects in the game and is designed in a way that allows users to immerse themselves in the game. To induce immersion through the visual elements of the game, 2D objects and players are placed in a 3D space, and a 2D dynamic light shader is added. It is composed of inter-combat rules and monster behavior pattern collision detection and event detection. The proposed method contained the user experience with the implementation thesis, and showed the game's possibility of leading the user's affordance.

• Journal of Satellite, Information and Communications
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• v.11 no.2
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• pp.1-7
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• 2016

In this paper, we propose contents authoring, management, and distribution technologies where the contents registered in secure storage through a content acquisition and authoring tool can be used as a common experience in smartphones, smart pads, and PCs. Currently, many people are producing and consuming various types of contents in bulk, and it is expected that real-time contents and old contents coexist as IoT(Internet of Things) technology is commonly deployed in the future. Therefore, we need to develop a differentiated service that can compete with global services in contents authoring and collaboration systems to create new markets. Accordingly, we implemented an authoring service platform to occupy cloud markets with high quality contents produced through collaboration.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.04a
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• pp.175-180
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• 2000

분산 가상 환경은 고속 통신망과 컴퓨팅 환경의 고급화로 응용 분야를 넓혀 가고 있으며, 보다 현실감 있는 상호작용으로 인해 만남과 대화, 협력 작업, 상거래, 오락 등의 인간의 사회적 활동을 지원하는 새로운 수단으로 자리잡고 있다. 가상 도시와 같은 대규모의 가상 환경에는 공원이나 거리, 건물의 로비 등과 같은 개방적인 공간과 사무실과 같은 업무 공간, 그리고 쇼핑몰과 같은 상거래 공간들이 공존하게 되므로 접근 제어와 보안이 보다 중요한 문제로 대두된다. 따라서, 이 논문에서는 분산 가상 환경내의 모든 사물들을 객체로 인식하고, 객체에 대한 역할을 기반으로 하는 접근 제어 모델을 제안하고, 제안한 모델을 기반으로 접근 제어 관리자를 설계하였다. 설계된 접근 제어 관리자는 가상 환경내 공간의 객체 뿐만 아니라 공간 자체도 하나의 객체로 인식하여 접근 제어를 하였다. 또한, 대규모 공간에서의 중요한 특징인 관리의 용이성과 동적인 변경을 가능하게 하기 위해, 역할을 기반으로 참여자와 객체를 연결하고, 객체가 갖고 있는 행위까지를 제어할 수 있었다.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.11a
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• pp.422-425
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• 2008

최근 IT 기술의 발전과 더불어 다양한 종류의 컴퓨터가 사람, 사물, 환경 속으로 스며들어 네트워크 망을 이루는 USN(Ubiquitous Sensor Network) 환경이 급속히 보급되고 있다. USN 환경에서 수집되는 센서 스트림 데이터는 연속적이며 동적으로 끊임없이 전달이 되기 때문에 그 양이 방대하며 또한 제한된 메모리를 사용하기 때문에 모든 데이터를 저장하여 처리할 수는 없게 된다. 스트림 데이터의 이러한 특성 때문에 본 논문에서는 입력되는 스트림 상황정보에 대해서 신속한 상황 분석 서비스를 진행하기 위하여 슬라이딩 윈도우 기법을 지원하는 상황정보 분석 시스템을 제안한다. 이 시스템은 온도, 습도, 조도 등 스트림 데이터에 대해서 WHEN-DO 상황질의모델을 적용하여 상황질의모델의 조건 만족 여부를 판단하고 특정 행동을 취한다. 따라서 본 논문에서 제안한 시스템은 실시간 건물의 상황정보를 수집하여 상태를 모니터링 하는 등 많은 USN 응용분야에 적용이 가능하다.

• KIPS Transactions on Software and Data Engineering
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• v.6 no.12
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• pp.549-564
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• 2017

Not only services that are provided by a single system have been various with the development of the Internet of Things and autonomous software but also new services that are not possible before are provided through collaboration between systems. The collaboration between autonomous systems is similar to the ecosystem configuration in terms of biological viewpoints. Thus, it is called the IT Ecosystem, and this concept has arisen newly in recent years. The IT Ecosystem refers to a concept that achieves a mission of each of a number of heterogeneous systems rather than a single system utilizing their own autonomy as well as achieving the objectives of the overall system simultaneously in order to meet a single common goal. In our previous study, we proposed architecture of elementary level and as well as basic several meta-models to implement the IT Ecosystem. This paper proposes comprehensive reference architecture framework to implement the IT Ecosystem by cleansing the previous study. Among them, a utility function based on cost-benefit model is proposed to solve the dynamic re-configuration problem of system components. Furthermore, a measure of using genetic algorithm is proposed as a solution to reduce the dynamic re-configuration overhead that is increased exponentially according to the expansion of the number of entities of components in the IT Ecosystem. Finally, the utilization of the proposed orchestration framework is verified quantitatively through probable case studies on IT Ecosystem for unmanned forestry management.

• Journal of the Korean Institute of Landscape Architecture
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• v.44 no.2
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• pp.37-51
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• 2016

Modern optical mechanisms slanted toward Ocular-centrism have neglected diverse functions of vision, judged objects in abstract and binary perspectives, and organized spaces accordingly, there by neglecting the function of eyes groping objects. Recently, various experiences have been induced through communication with other senses by the complex perception beyond the binary perception system of vision. Haptic perception is dynamic vision that induces accompanying bodily experiences through interaction among the various senses; it recognizes the characteristics of material properties and various sensitive stimulations of human beings. This study elaborates on the major features of haptic perception by examining the theoretical background of this concept, which stimulates the active experience of the subject and determines how characteristics of haptic perception are displayed in picturesque gardens. In order to identify the major features of haptic perception, this study examines how Adolf Hildebrand's theory of vision is developed, expanded, and reinterpreted by Alois Riegl, Wilhelm Worringer, Walter Benjamin, Maurice Merleau Ponty, and Gilles Deleuze in the histories of philosophy and aesthetics. Based thereon, the core differences in haptic perception models and visual perception models are analyzed, and the features of haptic perception are identified. Then, classical gardens are set for visual perception and picturesque gardens are set for haptic perception so that the features from haptic perception identified previously are projected onto the picturesque gardens. The research results drawn from this study regarding features of haptic perception presented in picturesque gardens are as follows. The core differences of haptic perception in contrast to visual perception can be summarized as ambiguity and obscureness of boundaries, generation of dynamic perspectives, induction of motility by indefinite circulation, and strangeness and sublime beauty by the impossibility of perception. In picturesque gardens, the ambiguity and obscureness of boundaries are presented in the irregularity and asymmetric elements of planes and the rejection of a single view, and the generation of dynamic perspectives results from the adoption of narrative structure and overlapping of spaces through the creation of complete views, medium range views, and distant views, which the existing gardens lack. Thus, the scene composition technique is reproduced. The induction of motility by indefinite circulation is created by branching circulation, and strangeness and sublime beauty are presented through the use of various elements and the adoption of 'roughness', 'irregularity', and 'ruins' in the gardens.

• Journal of Korean Medical classics
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• v.19 no.1 s.32
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• pp.47-109
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• 2006

서양의학상인위남녀근근시재생식기부동적인(西洋醫學上認爲男女僅僅是在生殖器不同的人). 최근(最近), Legato, Marianne J.박사창립료(博士創立了)‘성인지의학(性認知醫學)’학(學), 개시인식도남녀적차이(開始認識到男女的差異), 주장남녀재치료방법상역부동법(主張男女在治療方法上亦不同法), 종이저일연구진입도료신적단계(從而這一硏究進入到了新的段階). 단시한의학종(但是韓醫學從)${\ulcorner}$황제내경(黃帝內經)${\lrcorner}$개시(開始), 취인위남녀재구조상유근본적차이(就認爲男女在構造上有根本的差異), 이차재생리(而且在生理), 병리(病理), 진단(診斷), 치료상야부동(治療上也不同). 기록한의학기본원리적주역적상관서적화(記錄韓醫學基本原理的周易的相關書籍和)${\ulcorner}$황제내경(黃帝內經)${\lrcorner}$, 이급역대적주요한의서적급종사임상적한의사적서적상(以及歷代的主要韓醫書籍及從事臨床的韓醫師的書籍上), 역도인위남녀유차이(亦都認爲男女有差異). 관어남녀적생성(關於男女的生成), 재(在)${\ulcorner}$보제방(普濟方) 방맥총론(方脈總論)${\lrcorner}$적변남녀형생신육론중제출료(的辨男女形生神毓論中提出了男女的形成有異). ${\ulcorner}$동의보감(東醫寶鑑)${\lrcorner}$여기타한의서부동(與其他韓醫書不同), 불시이질병위주(不是以疾病爲主), 이시이신위중심(而是以身爲中心), 즉목차안형상진행료배열(卽目次按形象進行了排列), 차상세지언급료남녀(且詳細地言及了男女). 나요남녀시고정불변적마 불시적(不是的). ${\ulcorner}$동의보감(東醫寶鑑) 신형장부론(身形臟腑論)${\lrcorner}$인위(認爲)‘인적형색유차이(人的形色有差異), 장부이유이(臟腑易有異), 고외증수동(故外症雖同), 치법인인이이(治法因人而異).’ 안형상선용부동적치법적관점(按形象選用不同的治法的觀点), 이통과주단계지언이표명(已通過朱丹溪之言而表明). 불변관점상여자체격소이동(不變觀点上女子體格小易動), 남자체격대이와(男子體格大易臥). 남자속양기이산(男子屬陽氣易散). 여남자정서초차(如男子情緖稍差), 즉음주해수(卽飮酒解愁), 불이득우울증(不易得憂鬱症). 응보기정기(應補其精氣). 여자속음기이울체(女子屬陰氣易鬱滯), 다유인기지성질(多有忍氣之性質), 이득우울증(易得憂鬱症), 고다용산기약(故多用散氣藥). 간단이언(簡單而言)‘남자위병허증(男子爲病虛證), 여자위병실증(女子爲病實證).’ 종변화적관점래용약(從變化的觀点來用藥), 예여남자수소가용여자약적사물탕(例如男子瘦小可用女子藥的四物湯). 여자비가용남자약적사군자탕(女子肥可用男子藥的四君子湯). 여자골장가용남자약적육미지황환(女子骨壯可用男子藥的六味地黃丸). 위료갱용역이해(爲了更容易理解)‘남녀불변화변화적관점재의학적운용(男女不變和變化的觀点在醫學的運用)’, 이임상병례진행설명(以臨床病例進行說明). 재임상상통과형색맥증적합일화변증론치결정처방(在臨床上通過形色脈證的合一和辨證論治決定處方). 즉불능단순적인위(卽不能單純的認爲), 인위시남자취용육미지황환(因爲是男子就用六味地黃丸), 여자취용사물탕(女子就用四物湯). 남자약소가용사군자탕(男子若小可用四君子湯) 사물탕(四物湯) 육미지황탕(六味地黃湯), 이여자약대가용사군자탕(而女子若大可用四君子湯) 이진탕(二陳湯) 평위산(平胃散) 육군자탕(六君子湯). 인차(因此) 남녀재구조(男女在構造) 생리(生理) 병리유근본성차이(病理有根本性差異), 불이형상래구분(不以形象來區分), 용약상시지불변적입장(用藥上是持不變的立場), 이이형상용약(而以形象用藥), 시종변화적입장래고려적(是從變化的立場來考慮的). 인위이남녀위기준종사임상(認爲以男女爲基準從事臨床), 시부합한의학기본원리지음양관(是符合韓醫學基本原理之陰陽觀).

• Journal of the Korea Institute of Information Security & Cryptology
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• v.28 no.5
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• pp.1119-1127
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• 2018

Most of the cyber attacks are caused by malicious codes. The damage caused by cyber attacks are gradually expanded to IoT and CPS, which is not limited to cyberspace but a serious threat to real life. Accordingly, various malicious code analysis techniques have been appeared. Dynamic analysis have been widely used to easily identify the resulting malicious behavior, but are struggling with an increase in Anti-VM malware that is not working in VM environment detection. On the other hand, static analysis has difficulties in analysis due to various packing techniques. In this paper, we proposed malware classification techniques regardless of known packers or unknown packers through the proposed model. To do this, we designed a model of supervised learning and unsupervised learning for the features that can be used in the PE structure, and conducted the results verification through 98,000 samples. It is expected that accurate analysis will be possible through customized analysis technology for each class.

• KIPS Transactions on Software and Data Engineering
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• v.7 no.5
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• pp.177-188
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• 2018

The scale of graph data has been increased rapidly because of the growth of mobile Internet applications and the proliferation of social network services. This brings upon the imminent necessity of efficient distributed and parallel graph processing approach since the size of these large-scale graphs are easily over a capacity of a single machine. Currently, there are two popular parallel graph processing approaches, vertex-centric graph processing and block centric processing. While a vertex-centric graph processing approach can easily be applied to the parallel processing system, a block-centric graph processing approach is proposed to compensate the drawbacks of the vertex-centric approach. In these systems, the initial quality of graph partition affects to the overall performance significantly. However, it is a very difficult problem to divide the graph into optimal states at the initial phase. Thus, several dynamic load balancing techniques have been studied that suggest the progressive partitioning during the graph processing time. In this paper, we present a load balancing algorithms for the block-centric graph processing approach where most of dynamic load balancing techniques are focused on vertex-centric systems. Our proposed algorithm focus on an improvement of the graph partition quality by dynamically reassigning blocks in runtime, and suggests block split strategy for escaping local optimum solution.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.05a
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• pp.517-520
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• 2008

Wireless sensor network supporting healthcare environment should provide customized service in accordance with context information such as continuous location change and status information for people or movable object. In addition, we should consider data transmission guarantees a person's bio information and privacy security provided through sensor network. In this paper analyzes LEACH protocol which guarantees the dynamic self-configuration, energy efficiency through configuration of inter-node hierarchical cluster between nodes and key distribution protocol used for security for data transmission between nodes. Based on this analysis result, we suggested self-configuration routing protocol supporting node mobility which is weakness of the existing LEACH protocol and data transmission method by applying key-pool pre-distribution method whose memory consumption is low, cluster unit public key method to sensor node.