• Journal of the Korean Society for Library and Information Science
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• v.53 no.4
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• pp.231-254
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• 2019

Library website is medium for connecting library information resources and users. However, searching and accessing methods to information resources in library websites and retrieval systems are mostly designed for users. So, the disabled users have difficulty accessing and using library information resources through library websites. Therefore, the author carried on current status study and analysis on the retrieval system of the national and public library websites in Korea. And then, the author proposes improvement plan in order to enhance satisfaction with information needs of disabled users and to use a basic study for construction of retrieval system of library websites for disabled users.

• Journal of the Korea Society of Computer and Information
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• v.14 no.10
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• pp.175-187
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• 2009

This paper shows trends in domestic and foreign web accessibility. To disclose the web accessibility observance rate, seven central adminstration institutions and another seven north-eastern cities in Gyeong gi-Do and seven major IT companies were evaluated. KADO-WAH 2.0 was used for showing the observance rate. The evaluation criteria was that of Internet Web contents accessibility Guidelines 1.0. The evaluation was limited to Guideline 1 and Guideline 2 of non-text contents and the restricted frame usage and the keyboard-only operation. The average points for three items are as follows: 65.56% for North-Eastern cities in Gyeong gi-Do and 43.71% for Central adminstration institutions and the average 29.33% for major IT companies. The observance rate was highest by 99.3% in Human-rights committee among the central administration institutions. With the observance rate of 98%, Namyang-ju city came first in Gyeong gi-Do area. Samsung electronics was the highest with 63.66% in observance rate. The Central adminstration got lowered from the average 82.14% in 2006 to the average 54.28% in 2009, with the result of 27.86% down. Accordingly, the urgent improvement for Central adminstration and Local adminstration in web accessibility is asked for. The same is true with major IT companies in web accessibility.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2004.03a
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• pp.45-49
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• 2004

최적경로문제는 한 지점에서 다른 지점으로 이동할 때, 최소한의 비용으로 이동할 수 있는 경로를 찾는 문제를 의미하며, 최근 인터넷을 이용한 경로 안내 시스템에 적용되어 왔다. 이때, 보통 시간비용을 최소로 하는 경로를 제공하는 것이 일반적이다. 그러나 현실적으로 우리는 타인에게 어떠한 경로를 설명하거나 알려 줄 때, 인지도나 접근성이 높은 경로를 포함하는 경우가 많다. 이에 본 연구에서는 교통경로를 산출할 때 접근성이 높은 경로를 포함하여 경로를 구성하는 방안을 제시하였다 이를 구현하기 위해 건축, 도시공간에서 접근성 분석에 사용되고 있는 Space Syntax라는 방법론을 적용하였다. GIS 데이터 구조를 이용하기 위해 알고리즘을 일부 수정하였으며, 일반적으로 최단거리 산출에 많이 사용되고 있는 Dijkstra 알고리즘과 결합하여 구축하였다. 이렇게 구축된 알고리즘을 소규모의 교통 네트웍상에 적용하여 테스트하였다.

• Journal of Korean Society for Geospatial Information Science
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• v.24 no.1
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• pp.9-16
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• 2016

As the need of eco-friendly transportation systems for sustainable development increases, public transport accessibility has been considered as an important element of transportation system design. When analyzing the accessibility, shortest path algorithms can be utilized to reflect the actual movement and we can obtain high resolution accessibility for all other stations on the network with shortest distance and time. This study used the algorithm improved by reflecting the penalty of number of transfers and waiting time of overlapped routes to get the accessibility. KTX Seoul Station is a target place and this algorithm is applied to multi-layer subway bus network of Seoul to calculate the accessibility, therefore this study presented the accessibility of KTX Seoul station by stations.

• Proceedings of the Korean Reliability Society Conference
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• 2002.06a
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• pp.211-216
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• 2002

실제적인 문제에서 신뢰성 기반 최적 설계(RBDO)를 구현하기 위해서는 유한요소 모델을 해석하기 위한 상용 프로그램과 설계한 것에 대한 신뢰성을 산정할 수 있는 프로그램을 통합하고 최적화 알고리듬을 적용하여야 최적화를 수행하여야만 한다. 또한 최적화 과정에서 최적상태에서 제약조건이 비활성 영역에서 놓이게 되는 것을 방지하기 위해서 제약조건 최적화 문제를 비제약 조건 최적화 문제로 바꾸어 주는 장애 함수를 사용하여 최적화를 수행하였다. 그리고 이 방법론을 기존의 신뢰성기반 최적화 방법론, 즉 신뢰도지수 접근방법과 목표성능치 접근방법과의 비교를 하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.10a
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• pp.90-92
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• 2022

This paper proposes an interface improvement design to improve accessibility of kiosks introduced in various fields in Korea. Kiosks are unmanned systems using touch-type screens and are particularly specialized in the field of dining out. However, due to the lack of intuition of kiosks, more and more people are giving up using kiosks. To solve this problem, the purpose of this is to increase the convenience of those who avoid using existing kiosks by increasing intuition and learning of use at the interface stage, and to increase the accessibility of kiosks through this.

• Journal of the Korean association of regional geographers
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• v.19 no.3
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• pp.436-445
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• 2013

This study, by focusing on the concept of accessibility to the central city, analyses its importance for understanding baward regions and aims to investigate a new spatial strategy for developing backward regions in Korea. The study investigates the EU accessibility case study and formulates the methodological framework for the analysis, which is applied to the case of Jeonnam-do and Gyeongbuk-do in order to evaluate the backwardness of the regions in terms of the accessibility to the central city. Finally, this paper discusses a new spatial strategy for developing backward regions based on the concept of the accessibility to the central city, which includes the creative expansion of rural public services and promoting efficient delivery system, improving public and private service provision through the accessibility to the central city and securing long-term development potential through investing in regional human capital.

• Journal of the Korean Society for Library and Information Science
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• v.48 no.1
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• pp.415-439
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• 2014

The purpose of this study is to analyze mobile web accessibility of public libraries. To achieve this, accessibility checklists were driven from mobile web and application guidelines. The study also conducted automatic and manual evaluations. As results, the study found that text alternatives for resource image, main menu, image for text contents were mainly missing. In addition, focus for retrieval, operating system accessibility for retrieval, and id & password label, color difference for library calendar and seat reservation, brightness difference for main manu and resource display, and space between controls for retrieval were mainly missing. The study also suggested focal missing areas for main library services. It will be utilized as checklists for development of mobile services.

• Journal of Cadastre & Land InformatiX
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• v.52 no.2
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• pp.189-210
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• 2022

Cities around the world have paid attention to public transportation as an alternative to reducing traffic congestion caused by automobile usage, excessive energy consumption, and environmental pollution. This study measures accessibility to subway stations in Seoul using a supply-demand-based accessibility technique. Then, the impacts were analyzed through land prices by use and segment. As a result of analysis using the multilevel hedonic price models, accessibility considering both supply and demand for the subway had a positive effect on both residential and non-residential land prices. The effect was stronger for residential than for non-residential. Further, among the accessibility measured by the three functions, the accessibility by the Exponential function was most suitable for the residential land price, and the accessibility measured by the Power function for the non-residential land price had the highest explanatory power. Also, looking at the impacts by land price segments, it was found that higher access to metro stations had the greatest positive impacts on the most expensive segment of residential and non-residential land prices. The results of this study can be applied not only to identify the impacts of public investment on neighborhoods, but also to support real estate valuation.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.718-720
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• 2005

이동 단말기의 대중화로 사용자는 시간과 공간의 제약 없이 필요한 다양한 정보 서비스를 쉽게 접할 수 있게 되었다. 그러나 사용자 인터페이스에 있어 이동 단말기는 제약사항이 않음으로 적시적소에 원하는 정보를 접근하기가 어렵기 때문에 음성인식을 통한 인터페이스 연구가 진행되고 있으며, 특히 잡음환경에서 강인한 음성인식 처리를 위한 연구가 활발히 진행되고 있다. 지금까지 잡음환경을 위한 음성인식 접근 방법으로는 언어모델의 개선과 음향모델 개선으로 크게 구분할 수 있다. 그러나 이러한 접근 방법들은 적용하는데 있어 많은 시간과 비용이 요구됨으로 효율성이 떨어진다. 따라서 본 논문에서는 이러한 효율성 문제를 보완하기 위해 음성인식기로부터 인식되어 나오는 결과를 문맥정보와 융합하여 정보를 추출하고 이 정보를 이용한 후처리 모듈을 이용하여 인식시에 발생하는 오류를 적은 비용과 시간으로 수정하여 이동 단말기에 이용할 수 있도록 한다.