• Journal of the Korea Society of Computer and Information
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• v.15 no.8
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• pp.99-105
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• 2010

Because in the amusement park, a number of people use various vehicles facilities complicated arraigned, it needs an effective way to search optimal path to reduce errors in touring a park. Particularly, when choosing a facility, searching a waiting time-based path as well as shortest path is important. This paper presents a path recommendation system which minimizes total park tour time based on tour distance and waiting time through GPS and wireless internet. This system can also recommend customized tour path based on the characteristics of user members as well as a simple shortest path.

• Korea Information Processing Society Review
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• v.14 no.2
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• pp.67-72
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• 2007

• 한국ITS학회:학술대회논문집
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• v.2007 no.10
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• pp.28-34
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• 2007

• Proceedings of the Korea Information Processing Society Conference
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• 2020.05a
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• pp.424-426
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• 2020

최근 스마트폰, 스마트 워치, 네비게이션 등과 같은 GPS가 내장된 기기가 늘어남에 따라 사용자의 위치 정보를 기반으로 하는 다양한 형태의 위치 기반 서비스와 다양한 목적에 따른 경로 추천 알고리즘이 제안되고 있다. 대부분의 연구들은 단순히 위치 및 거리 요소만 고려하기 때문에 시간의 측면에서 효율적이지 못하다는 단점이 있다, 이러한 문제를 효율적으로 해결하기 위해 시간과 공간을 모두 고려한 사용자 맞춤형 경로 추천 알고리즘을 제안한다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.14 no.3
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• pp.175-183
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• 2021

As concerns about users' privacy infringement on Online Behavioral Advertising(OBA) increase, regulators are taking measures such as drawing up guidelines for OBAs, and websites provide OBA guidance in compliance with such guidelines. As a result of reviewing the status of providing OBA guidance on websites, access to OBA guidance pages was rather complicated. In order to analyze the issue from the UI/UX perspective, following the "Guidelines for Privacy in Online Behavioral Advertising" applied to all types of OBA transmitted on websites, this study aims to structuralize a navigation of page movement from two starting points, 1) Main Page, 2) The page where OBA is delivered, to OBA guidance pages. Also, with understanding the problems found in the access and navigation of OBA guidance pages by analyzing features found during the page navigation, such as hyperlinks containing keywords, and movement pages.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.3D
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• pp.317-323
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• 2008

Mass transit information can contribute many benefits to users. Especially, transportation information technology is developing highly with information technology in Korea recently. Hereafter, it is expected to give customized transportation information to users individually with the advent of ubiquitous age in earnest. This public transportation information service can be realized by path finding algorithm in public transportation networks including travel and transfer attributes. In this research, constraints are constructed with the primary facts influencing users. Moreover, the method reducing user's path finding condition arbitrarily is proposed by making the maximum value as variables. In this study, transfer frequency, total travel time, seat confirmation, transfer time and travel time become constraint condition based on k path finding algorithm considering service time constraint condition. Moreover, case study about user customized transfer information is performed in Seoul and metropolitan subway networks.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.7 no.3
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• pp.1-14
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• 2008

Mass transit information should contribute many benefits to users. Especially transportation information technology is developing highly with information technology in Korea recently. Hereafter it is expected to provide customized transportation information to users individually with the advent of ubiquitous age in earnest. This public transportation information service can be realized by path finding algorithms in public transportation networks including travel and transfer attributes. In this research, multi objectives such as travel time, transfer time, and number of transfer and so on are constructed with the primary facts influencing users. Moreover, the method reducing user's path finding alternatives arbitrarily is proposed by selecting the best alternative which provides maximum utility to users among non dominated paths. Therefore, the ultimate goal of this study proposes a multi objective shortest paths finding algorithm which can take into account multiple user classes in a transit network with multiple travel modes. The proposed algorithm is demonstrated based on the two case studies - a small toy network and the large-scaled Seoul Metropolitan subway network.

• Information and Communications Magazine
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• v.32 no.4
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• pp.10-15
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• 2015

본고에서는 u-Office 서비스를 실현하기 위하여 이동 단말 기기로부터 수신한 사용자의 시간 및 위치 이동 정보를 이용해서 사용자에게 유용한 서비스를 제공하는 데 필요한 사용자 맞춤형 서비스 제공 통합 프레임워크 및 추론 기술 알고리즘에 대해 기술하고자 한다. 사용자 맞춤형 서비스제공 통합 프레임워크는 사용자 이동단말기 및 시간 및 이동 데이터를 저장하는 AP, AP의 데이터를 수집하는 데이터베이스, 사용자 이동 단말 어플리케이션 등으로 구성되어있으며, 사용자의 시간 및 위치 정보를 학습하여 이동 경로를 예측하고 유용한 서비스를 제공하기 위해 사용된 기계학습 기반 추론 알고리즘에 대하여 알아본다. u-Office 서비스를 실현하기 위하여 실제로 캠퍼스 및 교실범위로 구현한 사용자 패턴기반 맞춤형 서비스 프레임워크에 대해 알아보고 제공 가능한 서비스에 대하여 논의한다.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06c
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• pp.198-200
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• 2012

최근 많은 사용자들이 관광에 대한 정보검색을 위해 스마트폰기반의 어플리케이션을 이용하고 있다. 그럼에도 불구하고, 대다수의 관광 어플리케이션은 단순히 위치기반 서비스를 적용한 관광지 주변의 단편적인 정보만을 제공하고 있다. 이로 인해 사용자들은 제한된 여행 시간 내에 다양한 볼거리, 먹거리를 충분히 즐길 수 없어 많은 아쉬움을 느끼고 있다. 이러한 불편함을 해결하기 위해, 이 논문에서는 주변 관광지 및 관광코스를 연계하여 사용자가 원하는 다양한 경로 및 정보를 보여줄 수 있는 스마트폰기반의 어플리케이션을 개발하였다. 개발된 어플리케이션은 여행정보에 대한 사용자 맞춤형 관광서비스의 기반이 될 수 있다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.37 no.1
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• pp.111-117
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• 2017

The purpose of forecasting the traffic accident is to reduce the traffic accident. Therefore, the goal of this study is to provide severity of the accident by Forecasting of Probability of Accident. In Korea, accident data are distributed to the public via internet that includes numbers of accident and fatality as well. And crude level of accident severity in accordance with weather information for metropolitan city level are available by weekly. However, It can not reflect personal needs at specific origin of the travel for a certain traveller. This study aims to consider 68 major intersections with precipitation data, and eventually introduces link based accident severity. In estimating the accident severity both dynamic data such as drivers' characteristics, driving conditions and static data such as geometry of road, intersection characteristics are considered. Also, we identifies accident severity according to the accident type - 'vehicle to vehicle,' 'vehicle to person.' Finally, the outcomes of this study suggests taylor-made accident severity information for a specific traveller for a certain route.