• Journal of radiological science and technology
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• v.45 no.6
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• pp.515-522
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• 2022

The aim of the study was analyzed effect of the interaction with contents (IC), learning satisfaction (LS) and learning achievement (LA) through evaluation of the self-directed learning ability (SDLA) and immersion in learning (IL) for online learning application in the radiation therapy. A total of fifty university students who completed the radiation therapy course were be surveyed. There was significant positive correlation with the IC and the intention to continue using (ICU) in SDLA, and IC, LS, LA, and ICU in LC. The online learning application could be increase the satisfaction and achievement of radiation therapy learning.

• Journal of Practical Engineering Education
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• v.14 no.2
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• pp.351-359
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• 2022

In this paper, this app is an online learning tool web application that helps learners learn efficiently. It discusses how learners can improve their learning efficiency in these three aspects: retrieval practice, systematization, metacognition. Through this web service, learners can proceed with learning with a flash card-based retrieval practice. In this case, a method of managing a flash card in a form similar to a directory-file system using a composite pattern is described. Learners can systematically organize their knowledge by converting flash cards into a mind map. The color of the mind map varies according to the learner's learning progress, and learners can easily recognize what they know and what they do not know through color. In this case, it is proposed to build a deep learning model to improve the accuracy of an algorithm for determining and predicting learning progress.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.473-475
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• 2022

In this paper, as children's smartphone penetration and usage time increase, the need for educational application development is increasing.Therefore, in this paper, we propose an idea for the development of an application service that is optimized for children and designed to be easily used by children by applying image recognition technology. Using image recognition technology, we propose a service that helps children easily take pictures of objects with their smartphone's camera and easily identify appropriate search results for them. Through this, even in an environment where it is difficult to receive direct guidance from a teacher due to online classes, children can easily study on their own initiative or find a subject they want to learn more about and learn.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2020.06a
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• pp.38-39
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• 2020

Currently, attempts are being made to introduce innovative teaching methods in architectural engineering education. However, there is still a lack of research supporting self-directed learners. In this regard, this study sought to develop an application prototype to support learning from online lectures on architectural engineering and conduct prototyping for its evolution. Menus in the application prototype consisted of four main categories: lecture operation, video lectures, eBooks and past exam questions. The lecture operation was classified into eight sub-categories, including assignment submission and notice, so as to support interactions between instructors and learners as well as confirmation of the delivery methods. With respect to video lectures, assignment submissions and notice functions, prototyping connecting the mobile web was implemented to enhance user convenience.

• The Journal of the Korea institute of electronic communication sciences
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• v.16 no.6
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• pp.1231-1238
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• 2021

Recently, large online shopping malls are providing image search services as well as text or category searches. However, in the case of an image search service, there is a problem in that the search service cannot be used in the absence of an image. This paper describes the development of a system that allows users to find the clothes they want through hand-drawn images of the style of clothes when they search for clothes in an online clothing shopping mall. The hand-drawing data drawn by the user increases the accuracy of matching through neural network learning, and enables matching of clothes using various object detection algorithms. This is expected to increase customer satisfaction with online shopping by allowing users to quickly search for clothing they are looking for.

• Journal of KIISE
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• v.41 no.12
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• pp.1110-1116
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• 2014

Nowadays, social networking sites (SNSs), such as Twitter, LinkedIn, and Tumblr, are coming into the forefront, due to the growth in the number of users. While users voluntarily provide their information in SNSs, privacy leakages resulting from the use of SNSs is becoming a problem owing to the evolution of large data processing techniques and the raising awareness of privacy. In order to solve this problem, the studies on protecting privacy on SNSs, based on graph and machine learning, have been conducted. However, examples of privacy leakages resulting from the advent of a new SNS are consistently being uncovered. In this paper, we propose a technique enabling a user to detect privacy leakages beforehand in the case where the service provider or third-party application developer threatens the SNS user's privacy maliciously.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.482-484
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• 2017

Over the past 70 years, movies and television have revolutionized the way people communicate. However, even with this development, TV has been used only as a means of communication targeting an unspecified number of people due to the restriction of media such as radio waves and movies. However, the development of the Internet and online video has come to a time when 100 million people watch YouTube videos uploaded from the other side of the world by eliminating these restrictions. The message that you want to deliver now can be delivered to anyone, but making the image with these messages remains the last obstacle to communication. To solve these problems, we implemented a web application and a video production program through AWS. This system basically provides the administrator with the video production through the easy interface, the information management and the program on the server on the internet through AWS, the assigned lecture including the computer and the smart phone, the learning materials, And implemented to increase the efficiency of educational video production service.

• The Journal of Korean Association of Computer Education
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• v.11 no.1
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• pp.57-64
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• 2008

This paper presents a web-based virtual educational system for Java language, which consists of a management system named Java Web Player (JWP) and creative multimedia contents for the lectures of Java language. The JWP is a Java application program free from security problems by the Java Web Start technologies that supports an integrated learning environment including three important learning procedures: Java concept learning process, programming practice process and assessment process. On-line voice presentation and its related texts together with moving images are synchronized for efficiently conveying creative contents to learners. Furthermore, a simple and useful compiler is included in the JWP for providing user-friendly language practice environment enabling such as coding, editing, executing, and debugging Java source files on the Web. Finally, simple multiple choices are given suddenly to the learners while they are studying through the JWP and the test results are displayed on the message box. In order to show the validity of the proposed virtual educational system we analysed and assessed the learners' academic performance on the five quizzes for one semester.

• 한국HCI학회:학술대회논문집
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• 2007.02b
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• pp.213-218
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• 2007

정보생산을 촉진하는 새로운 형태의 사이버공간이 나타나면서 지식의 창출과 지식을 얻는 형태가 변화하고 있다. 최종사용자에게 웹 애플리케이션을 제공하는 컴퓨팅 플랫폼인 web 2.0의 도입으로 손쉽게 자신이 필요한 정보를 분류할 수 있는 웹 컨텐츠가 활발히 제공되고 있으며 제공된 컨텐츠를 활용하여 수많은 정보 속에서 자신만의 보석을 찾아 손쉽게 지식을 쌓아 관리를 하고 있다. 이러한 지식공유서비스는 무분별한 정보, 중복된 지식, 그리고 단순한 관리로 인해 자신이 원하는 지식을 얻기란 쉽지 않은 것이 사실이다. 본 논문에서는 온라인상의 정보를 탐색하기 위해서 인터넷을 이용하던 네티즌들이 정보생산자로서 참여하는 공간으로 등장한 '지식공유서비스'를 기반으로 지식 창출 및 관리자로서 시니어를 활용하여 지식의 수용자로서 유아들을 위한 NIE (News In Education) 활용 교육 체계를 제안한다. 뉴스는 유아부터 성인까지 활용될 수 있는 좋은 교육 자료로서 NIE를 통하여 사고력, 논리력, 표현력, 창의력 등 여러 영역에 걸친 능력을 향상시킬 수 있다. 특히 유치원이나 학교의 교과과정에 맞추어 이러한 능력들을 더욱 배가 시킬 수 있다는 점에서 NIE가 더욱 각광받고 있다. 본 연구는 미디어 융합의 결과로 인터넷 뉴스를 활용해 생활과 분리되지 않은 통합교육을 할 수 있는 SCORM 기반의 유아용 콘텐츠를 생성하여 유아 교육에 활용하고자 한다. 또한, 유아용 NIE 교육 콘텐츠는 시니어들을 NIE 강사로 양성하였을 때 학습 자료로도 활용된다. 시니어들을 NIE 강사로 양성함으로써 시니어의 일자리 창출 및 지역사회 통합과 1세대인 여성시니어와 3세대인 아동 간의 세대통합을 이끌어 낼 수 있도록 하는 것에 목적을 두고 시니어 NIE 콘텐츠를 생성하고자 한다. NIE에 생성되는 지식을 생성하고 관리하기 위한 지식 솔루션으로 위키의 기능을 추가하여 개발하고자 한다. 위키를 사용하므로 개별적으로 존재하던 지식을 공동의 지식으로 공유할 수 있으며 의견을 하나로 통합하는 과정에서도 유용하게 사용될 수 있을 것이다. 위키를 이용한 시니어 NIE 콘텐츠에서는 교수 학습 계획안 및 NIE 아이디어를 공동 작업을 통하여 효율적으로 지식을 생성할 수 있으며 여러 사람들이 여러 단계를 거치면서 하나의 정제된 지식을 생성하게 되므로 양질의 교수 학습 계획안이나 NIE 아이디어를 창출할 수 있을 것이다.

• Journal of the Korea Convergence Society
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• v.10 no.2
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• pp.195-200
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• 2019

The purpose of this study is to investigate the phenomenon of user's use of services, focusing on Skyscanner apps, and to suggest improvements to provide better user experience. The service described in this paper is complicated in booking ticket and deficient its usability at a certain age. As a result, three point of improvement is derived. Provide clear information and countermeasures. And make operating procedure be convenient to learn. It is significant that this study suggested ways to improve ticket reservation services through Skyscanner, a major online ticket reservation service. In the follow-up study, I expected that this study will help the various business models improve its system such as UI design, improvement of information structure, and Skyscanner for silver generation.