• Journal of the Korea Institute of Information Security & Cryptology
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• v.27 no.1
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• pp.147-162
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• 2017

With the advent of various services and devices in the change of IT environment, increasing the complexity of the data, and increasing scale of IT, Many organizations are experiencing the difficulty of analyzing and processing with a large amounts of data for security situations awareness. Therefore, propose the enhancement of security situational awareness through visualization in order to solve the problems of slow response and security situational awareness in organizational risk management. In this paper, we selected the evaluation factors and alternatives for effective visualization by considering user type, situational awareness step, and information visualization attributes through various studies on visualization. And established AHP layer model. Based on this, by using the AHP method for solving the problem of multi-criteria decision making, by calculating the factors for effectively visualizing and the importance of alternative by factor, try to propose a visualization method that can improve the effectiveness of the security situational awareness according to the purpose of visualization and the type of user.

• 한국HCI학회:학술대회논문집
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• 2008.02b
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• pp.364-369
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• 2008

이 연구는 정보와 지식을 효과적으로 시각화하기 위해 만들어진 개념적 맵(Conceptual map)들의 종류와 그 특성과 차이점을 분석하고 활용 방안으로서 디지털 스토리텔링으로의 적용 가능성과 방법에 대한 연구이다. 사회현상에 존재하는 다양한 정보에서 사용자가 원하는 정보를 검색하고 조직하기 위해 다이어그램, 그래프, 맵 등 정보시각화를 통한 여러 방법들이 사용되고 있다. 특히 이 중에서 맵을 이용한 시각화에 주목하는 이유는 수많은 정보와 지식을 기반으로 만들어진 개념적 지도가 정보와 지식을 표현해 줄 뿐만 아니라, 이들 사이의 관계를 조직해주는 데에도 효율적으로 사용되고 있기 때문이다. 이러한 정보시각화는 대량의 정보 속에서 사용자들이 찾고자 하는 정보를 빠르고 용이하게 찾을 수 있도록 도와준다. 또한, 일련의 스토리 라인을 갖고 있는 책의 시각화의 경우 등장인물과 그들 주변에서 일어나는 사건들의 관계를 형상화할 수 있다. 이러한 과정을 통해 만들어진 개념적 맵에서는 개개인이 알고 있는 이야기와 그에 관한 정보를 다른 사람들과 의사소통하며 그 정보와 지식들이 확장될 수도 있어, 이는 지식시각화의 좋은 활용사례가 될 수 있을 것이다. 본 연구에서는 대표적인 개념적 맵의 세 가지 종류인 개념맵(Concept map), 지식맵(Knowledge map), 토픽맵(Topic map)의 정의와 특성들을 살펴보고, 각각의 구성요소의 차이점을 비교하여 시각화 방법론을 제안하였다. 또한, 각 맵의 특성과 차이점을 이용해 루이스 캐롤(Lewis Carroll)의 <이상한 나라의 엘리스>의 이야기 요소들을 각각의 개념적 맵들로 구성해봄으로써, 그 효과를 확인해보았다. 스토리텔링을 개념적 맵을 이용하여 표현할 경우, 사용자들은 스토리텔링을 효과적으로 접근할 수 있으며, 이러한 분석은 개념적 맵을 제작할 때 가이드라인으로 활용될 수 있을 것이다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.01a
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• pp.81-82
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• 2012

본 논문에서는 수준별 깊이 정보를 이용하여 노드의 링크 정보를 시각화 도구를 구현하였다. 제한된 공간에서 다수의 노드 정보를 효과적으로 시각화하는 많은 연구가 있지만 기본 방법들은 2차원적인 도구가 대부분이고 각 노드의 링크를 표현하기 위하여 일정한 영역을 동일하게 할당하여 시각화한다. 이는 시각화 대상이 적을 경우에는 문제가 발생하지 않지만 대량의 데이터를 시각화하는 경우에는 연결 식별성이 저하되는 경향이 있다, 본 논문에서는 각 노드를 시각화할 때 수준별 깊이 정보를 이용하여 하위 노드의 수에 따른 가중치 기반으로 3차원 공간상에 시각화하여 보다 공간적 효율성과 식별성이 높은 시각화 방법을 제안 한다. 본 논문의 결과물은 연결성 정보를 시각화하는 영역에 활용될 수 있을 것이다.

• Journal of the Korea Society of Computer and Information
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• v.15 no.2
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• pp.75-81
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• 2010

Feeling of shooting is one of the most important features of shooting games. Game developers have tried to improve feeling of shooting by using various techniques, such as visual/sound effects, rumble effects, animations, and camera techniques. In this paper, we introduce the results of the empirical analysis of the several techniques in a 2D shooting game. We carried out two experiments in which levels of feeling of shooting were measured in a simple 2D shooting game. The first experiment was configured with 16 combinations of the four techniques (visual, animation, sound, and rumble effects) applied to a shooting object (a cannon), and the second was configured with 16 combinations of the two techniques (visual and sound effects) applied to both or either side of a shooting object and exploding objects (enemy ships). The analysis results of the experiments showed that all of each techniques were statistically significant factors. We could also found that sound effects and rumble effects are more effective than visual effects and animations and that exploding objects are more important that a shooting object.

• Science of Emotion and Sensibility
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• v.21 no.2
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• pp.73-88
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• 2018

The present study examined how processing features of visual information near the hand would affect task switching. Recent studies reported enhanced cognitive control of visual information presented the near hands. To investigate the enhancement of cognitive control based on the relationship between hand proximity and attention, we implemented 2 experiments. In the task switching performance experiment, the hand proximity effect depended on modality of cue and target. The first experiment showed that stimuli near the hand received greater cognitive control than stimuli far from the hand, resulting in smaller switch cost. The result could rule out the feature-binding problem, which identifies reduced switch cost as the cause instead of hand proximity. Our results show that hand proximity actually reduced switch cost. In the second experiment, we examined the effects of hand nearness, modality, and their interaction on switch cost. In task switching, the target was always visual, and the cue was presented either visually or auditorily. In addition, we manipulated the cue-target interval to observe the preparation effect of cue. The results showed that a visual cue near the hand reduced switch cost by shortening task preparation time. Also, modality switching between an auditory cue and visual target was remarkable in a hand-near condition. The results for the visual cue could be interpreted as a benefit of rapid visual attention orienting. On the other hand, the results for the auditory cue could be interpreted as the cost of interference of modality switching by slower attentional disengagement of stimuli near the hands. Finally, modulation of switch cost by attention induced by hand nearness was discussed.

• Journal of the Korean Data and Information Science Society
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• v.28 no.6
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• pp.1301-1311
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• 2017

Manufacturing big data systems have supported decision making that can improve preemptive manufacturing activities through collection, storage, management, and predictive analysis of related 4M data in pre-manufacturing processes. Effective visualization of data is crucial for efficient management and operation of data in these systems. This paper presents visualization techniques that can be used to effectively show data collection, analysis, and prediction results in the manufacturing big data systems. Through the visualization technique presented in this paper, we have confirmed that it was not only easy to identify the problems that occurred at the manufacturing site, but also it was very useful to reply to these problems.

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.111-114
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• 2009

본 논문에서는 계속 발전하고 있는 영상기술에 대한 것을 인문학적 관점으로 접근하고자 하였다. 시각특수효과의 기술적인 부분보다는 미학적 의미를 중심으로 하였으며, 이를 위해 미학의 접근과 재현의 의미와 사례를 통하여 기술적 부분보다는 해석적 의미에서 접근을 하였다.

• Therapeutic Science for Rehabilitation
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• v.12 no.1
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• pp.65-78
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• 2023

Objective : The typical decline in function due to aging includes limitations in vision, hearing, cognitive function, and activities of daily living. Therefore, this study evaluated the mediating effect of cognitive function on the relationship between vision and hearing and activities of daily living. Methods : The participants in this study were 36,767 persons from the long-term care database on older adults provided by the National Health Insurance Sharing Service. The extracted variables were: (i) independent variables: visual and hearing; (ii) dependent variables: basic and instrumental daily living activities; and (iii) mediator variables: cognitive function. Regression analysis was performed evaluate the mediating effects of the extracted variables. Results : Cognitive function showed a mediating effect of 30% on the relationship between vision and basic daily life activities and 42% in the relationship with instrumental daily life activities. The mediating effect was 50% in the relationship between hearing and basic activities of daily living, and 53% in the relationship with instrumental activities of daily living. Conclusion : Prevention programs for functional decline due to aging are in progress in Korea. Based on the results of this study, establishing a prevention program would help promote successful aging.

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.21 no.7
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• pp.49-58
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• 2003

• The Journal of the Korean dental association
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• v.36 no.10 s.353
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• pp.697-703
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• 1998