• Korean Journal of Social Welfare
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• v.64 no.1
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• pp.5-30
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• 2012

This study was carried out to understand the mean of neighbourhood and community organizing model on lived experiences of their organizing and members which had changed. The methods of collecting data was progressed in depth interview. According to study questions and analysis challenges based on theory, we analyzed texts. outcome of study we understood experiences of their organizing and members which had changed. In changing phases of organizational dimension, meaning of 'the discovery of the community problem' was extracted. In this time, organization's members set the goal and experience qualitative and quantitative changes of organization. On the other hand, changing phases of individual dimension were followed, which are 'escaping from locked life', 'reconstruction of self image', 'reconstructing the meaning of both family and self-concept' as well as 'reconstructing the meaning of both neighbourhood and self-concept'. Conclusively, we suggested practical implication, which might increase the effect of neighbourhood and community organizing model.

• The Journal of the Korea Contents Association
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• v.20 no.5
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• pp.1-10
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• 2020

In this paper, we propose a new pornographic content detection scheme using bi-directional relationships between neighboring auditory signals in order to accurately detect sound-centered obscene contents that are rapidly spreading via the Internet. To capture the bi-directional relationships between neighboring signals, we design a multilayered bi-directional dilated-causal convolution network by stacking several dilated-causal convolution blocks each of which performs bi-directional dilated-causal convolution operations. To verify the performance of the proposed scheme, we compare its accuracy to those of the previous two schemes each of which uses simple auditory feature vectors with a support vector machine and uses only the forward relationships in audio signals by a previous stack of dilated-causal convolution layers. As the results, the proposed scheme produces an accuracy of up to 84.38% that is superior performance up to 25.80% than other two comparison schemes.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.30 no.5B
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• pp.274-286
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• 2005

In this paper, we propose a new power-efficient and reliable connected dominating set based routing protocol in the mobile ad hoc networks. Gateway nodes must be elected in consideration of residual energy and mobility because frequent reconstruction of connected dominating set result in transmission error for route losses. If node density is high, it results in a lot of contentions and more delays for network congestion. Therefore, in this paper, we propose a new construction method of connected dominating set that supports reliable and efficient data transmission through minimizing reconstruction of connected dominating set by delaying neighbor set advertisement message broadcast in proportion to weighted sum of residual energy, mobility, and the number of neighbor nodes. The performance of the proposed protocol is proved by simulation of various conditions.

• Journal of the Korea Society of Computer and Information
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• v.12 no.5
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• pp.139-144
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• 2007

The mobile terminal's frequent changes to the access point introduce significant network overhead in mobile IP networks. To solve this problem, we introduce a hierarchical structure with consideration given to the dynamic value of neighbor scope in IP regional registration[1]. When a mobile terminal moves within the neighbor given by the scope value, it makes registration locally without registration with its home agent. We analyze the algorithm mathematically and show the numerical results. As a result, optimization of the scope value for the localized registration under the hierarchical structure makes the proposed scheme outperform the standard mobile IP protocol[2]. This can be explained from the fact that there is only local registration for terminal's movement within the scope region. Moreover, as the signaling cost for home agent increases, the proposed scheme becomes more advantageous.

• The Journal of Korean Association of Computer Education
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• v.20 no.2
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• pp.47-55
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• 2017

The purpose of this study is to investigate the predicting factors on the increase in computer entertainment behavior with the sample from KYPS data. The results of the Decision Tree model revealed that: (1) Neighbor supervision, self-belief, parent attachment, life satisfaction, and peer attachment were significant for the increase in computer entertainment behavior. (2) Neighbor supervision, class participation and leisure satisfaction were significant for male students' increase in computer entertainment behavior. (3) Optimistic disposition, teacher attachment, and peer attachment were significant for female students' increase in computer entertainment behavior. These results suggest that meaningful factors and their divers interactions should be considered in methods and programs for regulating and preventing the increase in computer entertainment behavior.

• 한국만화애니메이션학회:학술대회논문집
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• 2011.05a
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• pp.4-11
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• 2011

<2010 만화산업백서>에서는 2009년과 2010년 상반기 주요 이슈 중 하나로 학습만화의 강세를 꼽았다. 시리즈(예림당)는 3천만 부를 돌파했고, <만화로 보는 그리스로마신화>(가나출판사)는 2천 3백만 부를, <먼나라 이웃나라>(김영사)는 1천 5백만 부, <마법천자문>(아울북)은 1천3백만 부, <코믹 메이플 스토리>(서울문화사)는 1천 1백만 부, <서바이벌 만화 과학상식>시리즈(아이세움)는 1천 만부를 각각 돌파했다고 한다. 초판 발행 부수가 2,000부도 넘지 못하고 있는 현 만화 단행본 시장에서 이러한 학습만화의 강세는 단순한 유행이나 교육열을 넘어, 학습만화가 한국 만화 산업에 중요한 위치로 자리매김 했음을 보여주고 있다. 실제로 2009년 출판만화 시장의 현황을 보면, 어린이만화는 총 927종이 발행되어 시장 규모가 2,362억 원에 달해, 출판만화 전체 시장의 67%를 차지하고 있을 정도로, 한국 만화 산업에서 중요한 위치를 점하고 있다.1) 1970년대 '만화전집' 형태로 출판되어 영업사원들에 의해 판매되던 한국 학습만화는 1987년 고려원에서 출간된 이원복의 <먼나라 이웃나라>에 이르러 대중들에게 주목받기 시작했다. 그러던 것이 2000년 초반 <만화로 보는 그리스로마신화>와 <서바이벌 만화 과학상식>시리즈와 <마법 천자문> 등이 참신한 기획력과 적극적인 마케팅 전략으로 천만 부 시대를 열었고, 시리즈에 이르러 3천 만부를 돌파하면서, 명실상부 학습만화 시대를 열었다. 물론 2000년대 중반 인기작의 아류작들이 쏟아져 나오고, 만화 출판 경험이 없는 출판사들이 학습만화 시장에 뛰어 들면서 학습만화 시장의 거품에 대한 우려의 목소리가 아주 없었던 것은 아니다. 실제로 학습만화 시장에 뛰어 들었던 많은 출판사들이 서점 가판대에 제대로 진열조차 못해본 체 사라져 가고 있다. 그럼에도 불구하고, 학습만화 시장은 꾸준한 성장세를 보이고 있다. 그렇다면, 천만 부 이상을 판매하고 있는 학습만화의 성공요인은 무엇일까? 본고에서는 성공한 학습만화의 스토리텔링을 유형별로 분류하여 분석해 보고, 변화한 스토리텔링 방식이 마케팅과 기획력과 결합해 어떻게 시너지 효과를 내고 있는지 사례별로 분석해 보고자 한다.

• The Journal of the Korea Contents Association
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• v.21 no.5
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• pp.581-591
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• 2021

This study aims to understand the community sense and need for community programs for large scale cooperative rental housing residents, and to set the direction of the construction plan. To this end, a survey was conducted on visitors and contractors of the model house in Westaybyeolnae. As a result of the analysis, the most visitors to the model house were in their 20s and 30s, while the number of contractors in their 30s was the most. Most of the model house visitors currently do not participate in community activities, but the contractors wanted to interact with neighbors about once a week. The contractors had high demands for sports facilities and child-rearing facilities, and the most demanded for living cooperatives and child care services. However, the range of neighbors required by age, the degree of meeting, common facilities and programs required were different.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.24 no.9B
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• pp.1742-1754
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• 1999

In this paper, we propose a rate control scheme, using histogram based rate-distortion (R-D) estimation, which produces a consistent picture quality between consecutive frames. The histogram based R-D estimation used in our rate control scheme offers a closed-form mathematical model that enable us to predict the bits and the distortion generated from an encoded frame at a given quantization parameter (QP) and vice versa. The most attractive feature of the R-D estimation is low complexity of computing the R-D data because its major operation is just to obtain a histogram or weighted histogram of DCT coefficients from an input picture. Furthermore, it is accurate enough to be applied to the practical video coding. Therefore, the proposed rate control scheme using this R-D estimation model is appropriate for the applications requiring low delay and low complexity, and controls the output bit-rate ad quality accurately. Our rate control scheme ensures that the video buffer do not underflow and overflow by satisfying the buffer constraint and, additionally, prevents quality difference between consecutive frames from exceeding certain level by adopting the distortion constraint. In addition, a consistent considering the maximum tolerance BER of the voice service. Also in Rician fading channel of K=6 and K=10, considering CLP=$10^{-3}$ as a criterion, it is observed that the performance improment of about 3.5 dB and 1.5 dB is obtained, respectively, in terms of $E_b$/$N_o$ by employing the concatenated FEC code with pilot symbols.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.8 no.8
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• pp.825-834
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• 2018

Broadcasting is a basic data communication method for interconnection networks. There are two types of broadcasting. One-to-all broadcasting is to transmit a message from one node to all other nodes and all-to-all broadcasting is to transmit a message from all the nodes that have messages to other nodes. And by the using way of the transmission port per unit time, there are two schemes of broadcasting. Single port telecommunication(SLA) is to transmit messages from one node that contains the messages to one adjacent node only and all port telecommunication(MLA) is to transmit messages from one node to all adjacent nodes within a time of unit. Matrix hypercube is that an interconnection network has improved network cost than that of hypercube with the same number of nodes. In this paper, we analyze broadcasting scheme of matirx hypercube. First, we propose one-to-all and all-to-all broadcasting algorithms of matrix hypercube. And we prove that one-to-all broadcasting times are 2n+1 and $2{\lceil}{\frac{n}{2}}{\rceil}+1$ based on the SLA and MLA models, respectively. Also, we show all-to-all broadcasting time using SLA model is $5{\times}2^{\frac{n}{2}}-2$ when n=even, and is $5{\times}2^{\frac{n-1}{2}}+2$ when n=odd.

• Proceedings of the Korean Information Science Society Conference
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• 2002.04a
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• pp.274-276
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• 2002

이동 인터넷상에서 이동 호스트의 서비스 질 보장을 위한 많은 연구가 진행되고 있다[1-3]. 하지만, 대부분의 연구들은 인터넷 서비스 질 보장 구조를 고려하고 있지 않다. 현재 제안되는 구조는 도해인내의 서비스 질 보장과 도메인간의 서비스 질을 구분하는 것이다. 즉. 하나의 도메인내에서의 서비스 질 보장이 가능하다던 도메인간의 서비스 질 보장은 Bandwidth Broker(BB)[5]간의 협상에 따라 이루어지게 된다. 본 논문은 도메인 내에서의 이동성을 고려한 서비스 질 보장 방안을 제안한다. 제안된 메커니즘의 경우, 이동성 지원 프로토콜을 고려하여 도메인내의 서비스 질을 매크로 레벨과 마이크로 레벨로 구분한다. 매크로 레벨의 서비스 질 보장을 위하여 본 논문은 각 홈 게이트웨이 에이전트로부터 현재의 게이트웨이 외부 에이전트까지의 충분한 대역폭이 있는가와 함께 이동성을 고려하여 이웃 게이트웨이 에이전트가지의 충분한 대역폭이 있을 경우에만 이동 호스트의 서비스를 수락하게 된다.