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Constructing Perceptual Common Ground Between Human and Robot Through Joint Attention
Lee, Kangwoo,Choo, Hyunseung World Scientific Publishing Company 2017 INTERNATIONAL JOURNAL OF HUMANOID ROBOTICS Vol.14 No.3
<P>Joint attention is a communicative activity that allows social partners to share perceptual experiences by jointly attending to an environmental object. Unlike the common approach towards joint attention, which is based on the developmental view in robotics, here it is conceptualized with a psychophysical paradigm known as cueing. The triadic interaction of joint attention is formalized as the conditional probability of an attentional response for a given target candidate derived from object features and a cue derived from a human partner's indication. A robotic system to which the joint attention model is applied conducted a series of tasks to demonstrate the properties of the computational model. The robotic system successfully performed the tasks, which could not be specified by the information derived from a target object alone; furthermore, the system demonstrated how perceptual and selection ambiguity is resolved through joint attentive interaction and made to converge into a common perceptual state. The results imply that a perceptual common ground is constructed on the triadic relationship between user, robot, and objects through joint attentive interaction.</P>
Constructing Impressions with Multimedia Ringtones and a Smartphone Usage Tracker
( Kangwoo Lee ),( Hyunseung Choo ) 한국인터넷정보학회 2015 KSII Transactions on Internet and Information Syst Vol.9 No.5
In this paper, we studied facial impression construction with smartphones in a series of experiments with two smartphone applications: SmartRing and SystemSens+. In the first experiment, impressions of faces associated with different music genres (trot vs. classical) were compared to impressions formed from a facial image alone along the social warmth and intelligence dimensions. In the second experiment, the effect of similarity attraction was investigated by manipulating the extroversion of facial images. Results indicated that impressions of faces cannot only be constructed along the social warmth and intelligence dimensions, but can also be made more or less attractive based on their similarity to the viewer`s personality. Our experiments provide interesting insights into facial impressions formed in a smartphone environment.
Sharing Pattern Analysis of an OLTP Application
Lee, Kangwoo,Kim, Hiecheol Korea Society of Industrial Information Systems 2002 한국산업정보학회논문지 Vol.7 No.5
최근 다중 프로세서 시스템들이 상용 데이터베이스의 트랙잭션 처리에 널리 사용되고 있지만 데이터베이스의 데이터 공유 패턴에 대한 탐구는 거의 이루어지고 있지 않다. 본 논문에서는 캐쉬 일관성을 갖는 공유 메모리 구조의 다중 컴퓨터 상에서 대표적인 OLTP 응용 프로그램임 TPC-B 벤치마크에 대한 데이터 공유 패턴을 분석하였다. 또한 데이터 공유 패턴이 갖는 성능에 대한 영향을 분석하기 위하여 프로세서 개수, 캐쉬 크기, 그리고 캐쉬 블록 크기를 변화시켜 성능을 측정하였다. 이러한 성능 측정 결과로서 TPB-B는 과학기술 분야의 응용프로그램과는 확연히 다른 데이터 공유 특성을 갖고 있음을 확인하였다. Although multiprocessor systems are widely used in recent years to run commercial workloads, data sharing patterns are rarely explored due to several difficulties. In this paper, we made in-depth sharing pattern analysis for a representative OLTP application, the TPC-B benchmark, running on a cache-coherent shared-memory multiprocessor system. In addition, to illustrate their effects on the performance, the number of cache misses were measured for various numbers of processors, cache sizes and cache block sizes. From these measurements, we found out the shared data in TPC-B largely bear quite different sharing characteristics from those in scientific applications.
Standard protocol conversion of digital ECG for healthcare
Yonghee Lee,Sinhyuk Kang,Kangwoo Lee 한국정보기술학회 2017 Proceedings of The International Workshop on Futur Vol.2017 No.5
In this paper, we present a method for converting the digital SCPECG used in clinical practice to the MFER standard for use in health care. Since the SCP-ECG has a complex representation format for each section, we simplify the structure by separating only the items necessary for healthcare use. We convert the structure of each section of SCP-ECG to TLV format, such as tag, length, and value. The converted result is expressed in MFER format using different tags according to the expression contents. The results show that we can simplify the structure of the SCP-ECG and translate it into other standard formats, so that it can be used in the health care field.
동적 XML 문서에서 효과적인 레이블링을 위해 형제순서 값을 갖는 프라임 넘버링 기법
이강우(Lee KangWoo),이준동(Lee JoonDong) 한국컴퓨터정보학회 2007 韓國컴퓨터情報學會論文誌 Vol.12 No.5
동적인 XML 문서에서 빈번히 발생하는 갱신에 대한 고려를 하지 않는 레이블링 기법들은 XML 문서 트리의 갱신이 일어날 때 마다 변화된 레이블 정보를 반영하기 위해서 전체 XML 트리를 재탐색하여 전체 노드의 레이블을 다시 계산하는 리레이블링(relabeling)과정이 필요하다. 이러한 리레이블링은 갱신이 빈번히 일어나는 동적인 XML 문서에서는 비용이 상당히 크다는 단점이 있다. 이런 단점을 해결하기 위해 리레이블링 과정이 필요 없는 레이블링 기법으로 프라임 넘버 레이블링 기법(prime number labeling scheme)이 제안되었다. 그러나 프라임 넘버 레이블링 기법은 문서가 갱신될 때 XML 문서 트리의 노드 간 형제순서(sibling order)를 갱신하는 문제는 고려하지 않고 있다. 이러한 형제순서의 갱신과정은 XML 문서 트리의 많은 부분을 재탐색하고 재기록 하여야 하므로 많은 비용이 필요하게 된다. 따라서 본 논문에서는 XML 문서 트리의 재탐색과 재기록이 필요 없이 형제순서를 유지할 수 있는 형제순서 값을 갖는 프라임 넘버 레이블링 기법을 제안한다. Labeling schemes which don't consider about frequent update in dynamic XML documents need relabeling process to reflect the changed label information whenever the tree of XML document is update. There is disadvantage of considerable expenses in the dynamic XML document which can occurs frequent update. To solve this problem, we suggest prime number labeling scheme that doesn't need relabeling process. However the prime number labeling scheme does not consider that it needs to update the sibling order of nodes in the tree of XML document. This update process needs much costs because the most of the tree of XML document has to be researched and rewritten. In this paper, we propose the prime number labeling scheme with sibling order value that can maintain the sibling order without researching or rewriting the tree of XML documents.
한국·베트남 정상회담에 대한 베트남 인민일보 기사 분석 : 한국에 대한 인식 변화를 중심으로
이강우(Lee, Kangwoo) 대동문화재단 2021 대동CT연구 Vol.1 No.1
This paper analyzes the contents related to Korea of the Vietnamese Daily Nhan Dan among the major media in Vietnam. In a situation where all media in Vietnam are under the permission and censorship of the Communist Party and the government, Vietnamese Daily Nhan Dan, the official newspaper of the Communist Party, is the medium that most accurately reflects the intentions of the Vietnamese leadership. Also, for this reason, what kind of view did the Communist Party take toward Korea, which had been at odds in the unfortunate past and now has established a “strategic cooperative partnership” in various fields such as politics, economy, culture, etc. This is to find out what kind of image it was drawn through. In addition, in this process, the cause of the change in perception of Korea can be discovered and the correlation can be identified. The articles in the Vietnamese Daily Nhan Dan analyzed are limited to those related to the 10 summits between the two countries from the establishment of diplomatic relations between the two countries in 1992 to the establishment of a “strategic cooperative partnership” in 2009. The Korea-Vietnam summit has been held 10 times in 18 years, on average, about once every two years, repeatedly for a certain period of time, to see what changes in the article content for each period. By analyzing it, I think that it will be possible to effectively analyze the transition process of the image of Korea in the Vietnamese Daily Nhan Dan.