• The Journal of the Korea Contents Association
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• v.8 no.8
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• pp.1-8
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• 2008

Overlay Multicast is an effective method for optimal utilization of system resources and network bandwidth without a need for hardware customization. It is an effective method of providing Personal Internet Broadcasting Service for better Quality of Service to many users. In this paper, we propose a multicast tree that uses Local Swap method. In order to prove the effectiveness of the new technique suggested here, using the proposed method and personal internet broadcasting service, information is abstracted, compared and analyzed under various overlay multicast algorithm conditions. We have proved that the suggested local swap technique is more effective by comparing it with other existing techniques in various methods such as using various overlay based multicast algorithm simulation.

• Journal of Digital Contents Society
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• v.18 no.3
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• pp.613-619
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• 2017

This paper presents a CUDA (Compute Unified Device Architecture) code to achieve correct GPU parallel segmented prefix operation results with less than 32 segment length for large data arrays. Mark Harris and Michael Garland had published CUDA code to address the tasks. This paper shows that their code does not generate correct results when the local segment length is less than 32, discusses the cause of the problem, and presents a CUDA code that generates correct results. The segmented parallel prefix operation presented in this paper can be applied as a building block to various large parallel processing algorithms including the k-nearest neighbor search problems.

• The KIPS Transactions:PartB
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• v.9B no.5
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• pp.555-562
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• 2002

Increasing of electronic commerce users and high-capacity multimedia data is the main causes of increasing of load and network traffic in electronic commerce system. Increasing of load and network traffic brings the delay of service about client's request. And it's becoming factor that decreases customer satisfaction and corporation's competitive ability. So it is needed to research that consider efficient management and response time of electronic commerce system. In this paper, we designed electronic commerce system based on local server with web cashing function in order to solve load problem of electronic commerce system. And we proposed web cashing algorithm for local web server and analyzed performance by an experiment.

• The Korean Journal of Archival Studies
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• no.41
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• pp.3-38
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• 2014

This study aims to propose a model for developing participatory labor archives as locality ones. First, it proceeded the literature reviews and expert interviews, so that revealed the needs for participations in building labor archives, participating agents/agencies and the type of participation, especially in industrial labor archives. After examining domestic and foreign labor archives, the way of participation was analysed. Based on the analysis the model for developing participatory labor archives in terms of the principles, the procedure and the participation methods were proposed.

• Journal of the Korean association of regional geographers
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• v.16 no.3
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• pp.295-314
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• 2010

The paper attempts to balance the discourses of transnational spaces that have focused on de-territorialization, by emphasizing that transnational spaces are maintained also through re-territorialization. Reviewing the literature of transnational social fields, translocality, multicultural spaces and transnational places, I aim to show the way the main issues from the literature help understand an actually existing transnational space, Little Mania in Daehangno, Seoul. I specifically address the dialectic relation between de-territorialization and re-territorialization, multi-scalar networks, and hybridity of multicultural spaces in interpreting the weekend enclave of Filipinos in Seoul. I argues that Little Manila is a grounded translocality operating through multi-scaled networks of various actors. Furthermore, it is not a unified space where one dominant Filipino identity stands out. Different Filipinos and Filipinas constitute the space imagining different homes. It is also a multicultural space open to other minorities, which suggests the possibility of alternative spatial politics based on co-presence of different 'Others'.

• Journal of the Economic Geographical Society of Korea
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• v.6 no.1
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• pp.233-247
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• 2003

Ecotourism is widely known to be a sort of alternative tourism which seeks to keep balance between conservation and development. Successful ecotourism is not just dependent upon natural/cultural resources but also the consensus-building and collaboration among actors involved in the development of ecotourist attractions. In this sense, the establishment of good local governance can be crucial to achieve both conservation and development which are incompatible one another. Governance is carried out through self-organising, inter-organisational networks, which is emerging as new forms of collective decision-making at local level. Governance leads to the development of different relationships, not simply between public/ nonpublic agencies but between citizens and public/nonpublic agencies. I represent some key dimensions to construct good local governance in ecotourism: i) the creation of socio-institutional milieu that facilitate interactions among actors related to ecotourism; ii) actors involved in ecotourism taking responsibility to play an appropriate role in their own position. I argue that interactive relationships and consensus-building between different actors can be promoted by collective actions such as the sharing of information and resources, co-education and co-training, and seminars. It therefore implies that local good governance cannot be established without local social capital based on trust and cooperation between actors.

• 한국HCI학회:학술대회논문집
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• 2006.02a
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• pp.238-243
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• 2006

최근에는 통신기술과 인터넷의 발달로 원격의 사람과 전화, 이메일, 메신저 또는 화상회의 시스템 등을 통해서 쉽게 의사소통 할 수 있다. 이 시스템들은 주로 음성, 그림, 동영상 또는 문자 기반의 시청각 정보를 서로 주고 받으며 자신의 의사 및 감정을 전달하는 통로를 제공한다. 그러나 일상 생활에서 시청각 정보 외에 촉감 정보도 서로 의사소통 하는데 중요한 역할을 한다. 악수, 포옹 등의 촉감 상호작용은 사람 사이에서 친근감을 표시하는데 가장 직접적인 방법으로 자신의 감정을 전달하거나 느낌을 표현하는데 사용된다. 그럼에도 불구하고 촉감 상호작용을 가능케 하는 의사소통 시스템의 연구는 아직 폭넓게 진행되고 있지 않다. 본 논문에서는 일상에서와 같이 원격에서도 상대를 바라 볼 수 있고 자연스럽게 접촉할 수 있는 원격 촉감 커뮤니케이션 시스템을 제안한다. 이 시스템에서는 로컬 사용자가 손가락으로 상대의 몸 특정 부위를 만질 수 있고 서로 그 촉감을 실시간으로 느낄 수 있다. 이 시스템은 크게 AR 시스템, 그래픽 시스템, 햅틱 시스템, 택타일 시스템의 부시스템들로 나눌 수 있다. AR 시스템에서는 몸의 한 부위에 사각형의 AR 마커를 부착한 원격 사용자를 웹카메라로 촬영하고 ARToolKit 을 사용하여 마커의 위치를 측정한다. AR 마커의 바로 밑에는 택타일 장치가 장착되어 있으며 이 부위를 통하여 원격의 사용자는 로컬사용자가 자신의 팔을 만지는 느낌을 받게된다. 그래픽 시스템은 로컬사용자에게 촬영된 원격 사용자와 측정된 마커의 위치가 대표하는 원격 사용자의 가상 피부, 그리고 자신의 가상 손가락을 보여준다. 햅틱 시스템에서는 촉감 장치를 사용하여 로컬 사용자의 손가락 위치를 구하여 원격 사용자의 가상 피부와 접촉했을 때 그 충돌을 감지하고 접촉력을 계산하여 촉감 장치에 반영함으로써 그 접촉력을 느낄 수 있도록 한다. 택타일 시스템에서는 원격 사용자의 AR 마커 밑에 장착된 배열 타입의 진동 촉감 장치에 접촉 정보를 주어 로컬 사용자와 접촉 했을 때 접촉 부위에 진동을 줌으로써 촉감을 느끼도록 한다.

• The KIPS Transactions:PartA
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• v.12A no.3 s.93
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• pp.253-262
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• 2005

Local accounting system used by UNIX-like operating system provides the accounting information of processes that are in single host. But it is impossible for this local accounting system to record the total resource consumption data of all processes for doing the same job simultaneously. In this paper, we implement accounting system to measure and manage resource usage for MPI(Message Passing Interface) job in the clustering environment. We designed and implemented the accounting system which measure resource usage of each process runs on a cluster node and record the interconnection information of the entire set of processes across network. Also we implemented accounting system which collect the resource usage data of process in the local accounting system and generate the job-level accounting information. Finally, to evaluate the resource consumption data measured by this accounting system we compare with the data collected by local scheduler that widely used in large scale clustering environment.

• Journal of the Korean association of regional geographers
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• v.19 no.2
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• pp.203-222
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• 2013

This study has been implemented under the two purposes. One is to critically explore how married immigrant women had experienced or experience conflicts, differentiation and so on occurred in their relations to family, neighbor, friend, organization and nation. The other is to understand married immigrant women and family through a new perspective based on a relational space of interacting trans-nation, local and nation. The results of the study are summarized as the followings. Firstly, transnational space is produced by international marriage between Korean man and foreign woman and kept (or activated ) by (non) everyday activities of married immigrant women and family. There are remittance, children's rearing and education, visits to mother's house, emotional interactions by phone and computer and so on. Secondly, multi-layered and relational local spaces have been (re)produced by married immigrant women's various activities related to family, neighbor, friend, nation and so on. Thirdly, married immigrant women's relations to nation state or government has been specifically presented (or expressed) through the acquiring of Korean nationality and government's activities of supporting multicultural family. Married immigrant women feel that their national identity between mother's nation and Korea is ambiguous and undecided.

• The Transactions of the Korea Information Processing Society
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• v.7 no.8
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• pp.2565-2574
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• 2000

The error diffusion method is good for reproducing continuous image to binary image. However the reproduction of edge characteristic is weak in power spectrum analysis of display error. In this paper. we present an edge-enhanced error-diffusion method which include pre-processing algorithm for edge characteristic enhancement. Pre-processing algorithm consists of the difference value between current pixel and local average of original image and weighting function of pre-filter. First. it is obtained the difference value between current pixel and the local average of peripheral pixels(5x5) in original image. Second, weighting function of pre-filter is composed by function including absolute value and sign of difference value. The improved Error diffusion algorithm using pre-processing algorithm, present a good result visually which edge characteristic is enhanced. The performance of the proposed algorithm is compared with that of the conventional edge-enhanced error diffusion by measuring the RAPSD of display error, the egde correlation and the local average accordance.