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남양희(Yanghee Nam) 한국데이타베이스학회 2014 Journal of information technology applications & m Vol.21 No.2
For years, businesses have realized that story can persuade customers, familiarize people with the brand or the product, inspire team members and also mean big economic value. Storytelling, however, is regarded as such area depending only on the story director or writer’s creativity and thus minimum efforts have been given to information technology development for supporting business storytelling process. This study aims to review existing information technologies for both traditional and relatively new storytelling genres, and regards their implications when applied to business storytelling. As the result of the qualitative study, three kinds of business storytelling supporting system architectures-brainstorming, writing manin story, participatory storytelling-are suggested and discussions on further works are briefly mentioned.
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모바일 앱 사용행태 분석을 위한 역컴파일 및 역어셈블 데이터 로깅
김명준(Myoung-Jun Kim),남양희(Yanghee Nam) 한국데이타베이스학회 2014 Journal of information technology applications & m Vol.21 No.4
This study presents a logging method to trace the usage patterns of existing smartphone apps. The actual smartphone app itself, not a specially developed similar app with usage logging, would be used best for the experiment of observing the usage patterns. For this purpose, we used a method of injecting logging codes into existing smartphone app. Using this method, we conducted an experiment to trace usage patterns of a commercial IPTV app, and found that the method is very useful for acquiring detail usage log without influencing participants.
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오수진(Sujin Oh),남양희(Yanghee Nam) 한국정보과학회 2008 정보과학회 컴퓨팅의 실제 논문지 Vol.14 No.5
이동 중 사용자에게 필요한 정보를 제공하기 위해서는 장소를 인지하는 기술이 필요하다. 본 논문에서는 건물 내에서 이동하면서 카메라에 의해 포착된 영상 정보를 분석하여 현재 장소를 파악하고 카메라 영상에 관련 정보를 증강하는 비디오 기반 실시간 장소인식 시스템을 제안한다. 영상의 전역적 특징을 이용한 기존 연구들은 장면의 부분적인 폐색이나 잡음에 민감하고, 물체인식을 행하는 지역적 특징 의존 방식은 계산량이 많아 실시간 적용이 어렵다. 또한, 그러한 특징들로부터 장소인식 결과를 도출하기 위해서는 통계적 그래프 기반 모델이나 베이시안 네트웍등이 이용되어 왔는데, 전자의 경우 장소 이동의 확률을 얻기 위한 많은 통계 데이타가 필요하며, 후자는 장소 이동문맥을 활용하지 못하므로 물체 인식 결과에만 의존하는 단점이 있다. 본 논문에서는 장소 문맥 정보를 활용하면서 영상의 지역적, 전역적 특징추출법의 결합을 통해 부분 폐색 및 잡음에 대한 전역적 방법의 민감성을 보완하고, 지역적 방법의 느린 처리속도를 보완한 시스템을 제안한다. 제안된 방법을 건물 내부를 이동하면서 장소에 대한 정보를 얻는 정보증강 시스템에 적용하여 실시간 성능을 확인하였다. Place recognition is necessary for a mobile user to be provided with place-dependent information. This paper proposes real-time video based place recognition system that identifies users' current place while moving in the building. As for the feature extraction of a scene, there have been existing methods based on global feature analysis that has drawback of sensitiveness for the case of partial occlusion and noises. There have also been local feature based methods that usually attempted object recognition which seemed hard to be applied in real-time system because of high computational cost. On the other hand, researches using statistical methods such as HMM(hidden Markov models) or bayesian networks have been used to derive place recognition result from the feature data. The former is, however, not practical because it requires huge amounts of efforts to gather the training data while the latter usually depends on object recognition only. This paper proposes a combined approach of global and local feature analysis for feature extraction to complement both approaches' drawbacks. The proposed method is applied to a mobile information system and shows real-time performance with competitive recognition result.
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패스트푸드점 키오스크의 고령층 접근성 향상을 위한 사용자경험(UX) 디자인 연구 - KFC를 중심으로 -
김유빈(Kim, Youbin),남양희(Nam, Yanghee) 인제대학교 디자인연구소 2021 Journal of Integrated Design Research (JIDR) Vol.20 No.4
Background Nowadays, the elderly are also increasingly going to fast food restaurants due to the low price and comfortable atmosphere. However, the complex interface design and the kiosk device make it difficult for elderly people to access it. Therefore, elderly friendly approaches in convergent aspects of software and hardware of the kiosk are required in order to solve problems such as the difficult-to-understand foreign language use, small text, complicated order process, and difficulty of card payment, etc. Methods We reviewed the ergonomic characteristics of the elderly in the literature and identified characteristic problems of fast food kiosks in order to refer to the necessity of improving the convergence design of kiosks for the elderly. In addition, we derived problematic experiences in aspects of software and hardware of the kiosk through usability test of the elderly. Secondly, we conducted in-depth interviews to identify the problem factors, experts presented improvement points by the delphi technique. Result From a software point of view, problematic factors were uncertain interactions, unfamiliar words, absence of help services, pop-up advertisements, complex usage steps and layouts. As improvements, slide-type layouts, interactive buttons, a senior mode that provide age-friendly sizes and languages, icon marking methods, navigation and map, and helper services were presented. In terms of hardware, problem factors included wide and high screens that did not fit the eldery’s view, absence of usage methods, difficulty in inserting cards, absence of initialization buttons, difficulty in recognizing sound, and psychological pressure. As improvements, adjustable screens, central arrangement of a credit card terminal, a sub-monitor, initialization buttons, a directional speaker, and a table-operable reception system were presented. Conclusion In this paper, we discovered problematic experiences of elderly users through the analysis of the user experience (UX) of the kiosk in a fast food restaurant. In addition, convergent improvements for kiosk software and hardware devices was presented to solve problems through the in-depth interview. Based on the understanding of users, it is meaningful to provide improvements that can be applied to the industry field from a convergent perspective of software and hardware, which will contribute to improving kiosk usability and providing positive use experiences of fast food restaurants.
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체험된 현상학적 공간 표현으로서의 모바일 지오드로잉 연구 -위치 기반 사진적 행위에 기초한 본인작품 <Surroundings> 중심으로-
양윤아(주저자) ( Yoona Yang ),남양희(교신저자) ( Yanghee Nam ) 디자인융복합학회 2015 디자인융복합연구 Vol.14 No.5
The term ‘geodrawing’ indicates a kind of media art attempting aesthetic expression using the records of mobile location data. Existing geodrawing works mostly focus on moving in space and thus end up portraying ‘line’ as an objectified trajectory while ignoring person’s specific perspective. In contrast to that, this paper investigates artistic expression on phenomenological spatiality that emphasizes the ‘placeness’ of subjective experience formed by user’s voluntary behavior at some place. We first analyzes the meaning of phenomenological space in terms of place, time, and mood, and as the result, smartphone camera based ‘photographic act’ is pointed out as person’s important, phenomenologically meaningful experience of placeness. Based on that, we propose a novel geodrawing work <Surroundings> where a ‘vertex’ reflects user’s photographic act at some place, and gradient color transformation between points reveals spatio-temporal and mood flow. The final output of our geodrawing constructs a polygon of ‘one day’ by connecting the points signifying spatial indices, and an overlapping shape of polygons representing several ‘one day’s is shown to the viewer who was the originator as well. As the result, this paper presents unprecedented kind of phenomenological mobile geodrawing art as the trace of human’s intrinsic spatial experience.
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이정선 ( Jeongseon Yi ),남양희 ( Yanghee Nam ) 한국정보처리학회 2006 한국정보처리학회 학술대회논문집 Vol.13 No.2
가상현실에서의 사운드는 충돌이나 접촉 등의 인터랙션을 전달함에 있어서 그래픽 영상보다도 효과적인 경우가 많다. 그러나, 기존 연구에서는 발생 가능한 충돌음을 임의적으로 녹음한 후 실시간에서 단순 재생하는 방법으로 재현하고 있는 것이 대부분이다. 그러나, 가상환경은 미리 주어진 시나리오에 의해 플레이되는 것이 아니기 때문에 실시간으로 주어지는 인터랙션에 대해 적합한 충돌음을 실시간에 합성해야 한다. 본 논문에서는 녹음된 음의 단순재생을 피하고 실시간 가상환경의 충돌음 발생 요인을 바탕으로 유사한 물질의 충돌음을 하나의 대표 모델로서 표현하는 방법을 제안한다. 즉, 모든 샘플들을 저장하는 대신 하나의 고유음과 필요한 속성 표현을 제공하는 것이다. 이러한 고유음 표현은 실시간에 속성 요소의 변형에 의해 다양한 상황에 적응적인 음을 생성하게 된다. 이러한 충돌음 표현의 생성과 타당성을 파악하기 위해 충돌음을 발생시키는 물질들에 대한 진동음의 스펙트로그램 분석을 행하였고, 유사 물질별로 하나의 고유음 표현을 생성하여 해당 물질의 실제 충돌음과 비교함으로써 주요 주파수 패턴의 유사함을 확인하였다.
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