• Journal of Convergence for Information Technology
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• v.8 no.4
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• pp.121-126
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• 2018

We are developing a hazard map creation support system for historical local towns. Our system aims at collecting the unique information received from residents and raising resident's consciousness to disasters by recording hazardous locations where residents feel danger in case of disasters. In this paper, we examine the hazard information of the area collected by the residents themselves in using the system. While exchanging opinions, the residents review the validity and completeness of the information gathered by walking around the area. We also consider how to integrate and share it throughout the region. We found that it was possible to gather regional hazard information from the viewpoint of residents in addition to high coverage for each district. Also, by sharing information at the review meeting, the residents were able to newly know the hazard information of other districts that they did not know before. This shows the usefulness of residents to share the dangerous information while examining each cause across the different districts.

• Journal of Korean Library and Information Science Society
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• v.55 no.3
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• pp.141-165
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• 2024

This study aims to examine community information services provided by public libraries to explore strategies for their future development and enhance these services for the sustainability of local communities. The study categorized local information services into 17 categories and identified 60 detailed types. An analysis of 116 public libraries in the Chungcheong region revealed that 36% of the libraries offered community information services, while 64% did not. Among the 17 categories, the services provided were primarily concentrated on history/culture, employment, leisure, administrative information, education, and village communities. In eight areas experiencing population decline, the provision of community information services was notably lacking, highlighting the need to actively develop these services to support community sustainability. The study proposes expanding the concept of locality and diversifying service categories, conducting user needs assessments to reflect local residents' interests, strengthening human resource cooperation, and establishing digital archives of local materials in collaboration with related institutions.

• IEIE Transactions on Smart Processing and Computing
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• v.5 no.1
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• pp.49-54
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• 2016

Regarding global and local factors of a set of features, a given single image or multiple images is a common approach in image processing. This paper introduces an application of an adaptive version of non-local filter whose original version searches non-local similarity for removing noise. Since most images involve texture partner in both foreground and background, extraction of signified regions with texture is a challenging task. Aiming to the detection of visual attention regions for images with texture, we present the contrast analysis of image patches located in a whole image but not nearby with assistance of the adaptive filter for estimation of non-local divergence. The method allows extraction of signified regions with texture of images of wild life. Experimental results for a benchmark demonstrate the ability of the proposed method to deal with the mentioned challenge.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.10a
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• pp.605-608
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• 2001

다층 신경망의 학습에 쓰이는 오류 역전파 학습은 매우 효과적이지만 학습 속도가 너무 느리고 최적의 은닉충의 뉴런의 수를 결정하는 해답은 아직 없는 실정이다. 또한 가끔은 국부 최소점(Local maxima)에 빠져 학습이 끝내 이루어지지 않는 경우가 있다. 이에 본 논문에서는 이러한 Local maxima 를 효과적으로 탈출 할 수 있는 방법에 대해서 연구해 보았다. 국부 최소점은 연결강도와 전체 오차 사이의 이차원 공간에서 표현할 수 있는데 본 알고리즘은 이러한 연결강도와 오차와의 관계를 인위적으로 변화시켜 결론적으로 Local maxima 를 탈출하게 하는 방법을 소개한다. 본 연구에서 사용된 방법은 네트웍이 학습중에 Local maxima 에 빠졌을 때 은닉층의 뉴런의 수를 추가하여 인위적으로 연결강도 평면의 위상을 변조시킨다. 또한 은닉충의 뉴런의 수를 동적으로 변화 시키면서 최적의 뉴런의 수를 결정할 수 있게 하였다. 위 알고리즘의 성능을 평가하기 위해서 XOR 문제와 $10{\times}8$ 영문폰트와 숫자의 학습에 적용하여 일반적인 역전파 학습과 비교 평가하였다.

• Journal of the Korea Society of Computer and Information
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• v.7 no.1
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• pp.48-53
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• 2002

This paper Proposes an iterative Local Search (ILS) algorithm for Rural Postman Problems (RPPs). LS searches neighbors from an initial solution in solution space and obtains a nearoptimal solution which can be a local-minima. As an extension of LS, the ILS algorithm is a method that uses various initial solutions for LS. Hence. ILS can overcome the defect of LS. This paper proposes LS and ILS methods for 18 RPPs and analyzes the results of LS and ILS. In the simulation results, the ILS method obtained the better results than the LS method.

• 한국디지털정책학회:학술대회논문집
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• 2004.11a
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• pp.75-85
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• 2004

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.31 no.3
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• pp.105-109
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• 1999

The purpose of this experiment was to see the effect of local basis weight on the local strain during changing moisture content in handsheets. The averaged strain value of the whole size of paper sheet did not give more valuable information to explain non uniform deformation in the paper sheet. The combination of intact strain measurement system KISA (Linear Image Strain Analysis) and local basis weight measurement method using a scanner made it possible to compare local basis weight with local strain to explain moisture induced paper deformation . Usually higher basis weight local area showed higher moisture induced local strain. However, the hygro-induced strain values were highly affected by the behavior of neighbor local areas. Well distributed local basis weight paper would give more uniform local strains than those of non-uniformed local basis weight paper.

• Proceedings of the Korean Society of Crop Science Conference
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• 1998.10a
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• pp.368-390
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• 1998

It is urgent and of great importance for us to integrate and systemize the agricultural Information system available in Korea. In order to modernize the new Korean agricultural information system, which is enable to enhance compatability of domestic agricultural production system to those of abroad, and to be ready for the era of information and communication, every individual effort and progress is to be evaluated and systemized based on an integrated network system. In this study a comprehensive review for the present status of the Korean agricultural information system was made, and to prohibit the progress and development of this sector were the barriers identified. A survey was carried out to assess specific agricultural information demanded by local farmers. For the efficient utilization of the local agricultural information, the role of agricultural colleges was emphasized.

• Communications for Statistical Applications and Methods
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• v.18 no.2
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• pp.213-217
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• 2011

For the social network of n nodes, one might be interested in finding k nodes to disseminate the information as quickly as possible or to identify key nodes of high "local centrality". I propose two algorithms for determining k "local centers" of the network and work on a real case.

• Journal of the Korea Society of Computer and Information
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• v.22 no.1
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• pp.41-48
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• 2017

In this study, we proposed GIS-based Regional Crime Prevention Index (RCPI) development method designed to support local governments with systematic crime prevention activities. The public interest in safe urban environment is increasing rapidly. The government is putting efforts into crime prevention activities to eliminate the criminal opportunities in advance. CPTED is method to prevent crimes in the city by improving environmental factors that cause crime. It is used by local governments to promote the crime prevention activities centering on the expansion of CCTVs and street lamps and the improvement of street environment. However, most policies were terminated as one-off programs and it is necessary to monitor the effect of such policies on a continuous basis. In order to alleviate issues, this study proposed RCPI as part of crime safety assessment in urban environments. The estimation of RCPI in City A of Gyeonggi-do showed relative differences in 31 districts (dong), indicating that it is also possible to evaluate the crime safety in the local community on the level of the administrative dong, the smallest administrative district in the urban environments. As a crime map, the RCPI will be used effectively as he reference to support the decision making process for local government in the future.