• 한국IT서비스학회지
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• 제14권1호
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• pp.195-215
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• 2015

Recently, as the number of smart-phone users has been rapidly increased, enterprise managers have a keen interest in business application of social media. Most previous studies have focused on perspective of the individual unit of analysis instead of enterprise level unit. The study is focused on the relationship between the enterprises' recognition and behavioral intention (and use) about social media application. The purpose of this study is to develop the model of small and medium enterprises' social media application, and to find the factors affecting their behavioral intention or use behavior. The moderating effects of four corporate characteristics on the relationship between the enterprises' recognition and behavioral intention are also examined. We surveyed 900 corporate staffs and received 203 responses. After questionnaires with unreliable responses had been excluded, 182 effective samples were used in the final analysis. The findings suggest that Performance Expectation, Social Influence, Facilitating Conditions significantly affect Behavioral Intention of social medea, and Behavioral Intention affects USE. Furthermore, some corporate characteristics have moderating effect on the relationship between recognition of social media and Behavioral Intention.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2016년도 춘계학술발표대회
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• pp.783-786
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• 2016

E-learning is a new teaching model nowadays, and Virtual Reality (VR) technology is reported that the use of virtual reality as an education tool can increase student interests, understanding, and creative learning because of encouraging students to learn by exploring and interacting with the information on the virtual environment. Besides that, LEGOs have long been the favorite of many children. LEGOs provide a mechanism to understand and do for many concepts from spatial relationships to robotics platforms. In this paper, we present a virtual reality application based on the assembly of LEGO-Like bricks to increase math and science learning by improving spatial thinking. It not only encourages students to pursue careers in science, technology, engineering, or mathematics but also enhances learner's ability to analyze and solve problems. The application is built by Processing 2.0 as the easier programming language which is a top-down approach to build the 3D interactive program.

• 한국통신학회논문지
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• 제21권4호
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• pp.911-925
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• 1996

미래의 멀티미디어 응용 환경은 각 매체와 응용의 요구 사항들을 효율적으로 충족시킬 수 있는 유연한 오류 제어 모델을 필요로 하고 있으나, 지금까지의 오류 제어는 단일 매체를 처리하기 위한 제한된 유연성만이 제공되어왔다. 이를 해결하기 위하여 본 논문에서는 매체의 신뢰도 기준인 오류 허용률(ETL: Error Tolerance Level)과 응용의 실시간성 기준인 지연(Delay)을 고려하여 수송 계층에서 매체별로 유연하게 오류 제어 방법을 적용하는 모델을 제안한다. 이 모델에서는 매체별로 오류 제어 방법을 선정하기 위하여 오류 혀용률과 등시성과 같은 매체의 속성, 응용의 속성인 지연, 그리고 망에서의 데이터 손실율, 망의 전송 형태, 응용의 연결 모드와 같은 환경 파라미터가 영향 인자로써 고려되었다.

• 유통과학연구
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• 제19권8호
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• pp.37-46
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• 2021

Purpose: This study aims at investigating how high-tech SMEs can enhance innovation performance through the application and distribution of social media strategic capability and whether entrepreneurial orientation moderates the relationship between social media strategic capability and innovation. Research design, data, and methodology: The study followed a deductive approach based on the quantitative design in investigating the proposed relationships. The data was collected using a questionnaire, and the proposed relationships were examined based on a sample of 221 high-tech SMEs through the application of structural equation modeling (SEM). By applying SEM, this study accounted for hidden and unobservable factors as well as reconciled the potential measurement errors. Results: As hypothesized, it was confirmed that social media strategic capability positively influences innovation performance. Besides, the findings supported the moderating effect of three dimensions of entrepreneurial orientation (innovativeness, proactiveness, and risk-taking) toward the relationship between social media strategic capability and innovation performance. Conclusions: According to the results, high-tech SMEs can enhance their innovation performance through social media by distributing and applying social media strategic capability along with entrepreneurial orientation. This study thereby enriches the literature of innovation on high-tech SMEs for implementing social media strategies as well as stimulating future social media research for entrepreneurship.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2015년도 추계학술발표대회
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• pp.454-456
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• 2015

스마트 폰이 보급화 되면서 구인관련 앱이 많이 생겨나고 있다. 하지만 전공을 특화시킨 어플리케이션은 보급화 되어 있지 않은 상태이다. 본 논문은 대학생 및 이직을 원하는 사람들에게 전공 관련 기업의 정보를 제공하고, 자신의 능력에 맞는 기업을 소개해주는 방식으로 설계 및 구현을 하였다. 이 앱을 통하여 대학생 및 이직을 생각하는 사람들에게 많은 정보와 기회를 제공할 것으로 예상된다.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2022년도 제66차 하계학술대회논문집 30권2호
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• pp.523-525
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• 2022

본 논문에서는 시각장애인을 위한 교통시설 앱 서비스를 제안한다. 이 서비스는 시각장애인이 편리하게 사용하고 안전하게 교통수단을 이용할 수 있는 음성지원 경로 알림이 탑재되어 있는 내비게이션 앱이다. 스마트 디바이스 기기만 있으면 쉽게 설치가 가능하며, 이를 통해 시각장애인에게 경로 이탈에 대한 두려움을 줄이고 음성지원 경로 알림 서비스를 제공해 안전하게 교통수단을 이용할 수 있다. 50개국 이상 언어지원 블록체인을 이용한 구조 A-GPS, T MAP, 음성을 사용 본 논문에서는 시뮬레이션을 통하여 문제점 해소와 더 나아가 시각장애인의 독립적인 이동 문화 형성을 제공한다.

• Asia pacific journal of information systems
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• 제30권4호
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• pp.785-807
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• 2020

The novel Coronavirus disease 2019 (COVID-19) is unprecedentedly changing the world since its outbreak in late 2019. Using the collected the data related to COVID-19 and the social media user data from a mobile application market research agency from January 25 to April 7, this study empirically examines the effect of the number of confirmed COVID-19 cases worldwide, the number news COVID-19, and the enforcement of social distancing measures on the daily active users (DAU) of two social media services - Twitter and Facebook - in South Korea. There are three important findings from the results of econometric analysis. First, the number of confirmed COVID-19 cases worldwide has a negative effect on the DAU of social media. Second, the number of COVID-19 news is negatively associated with the DAU of social media. Finally, the implementation of social distancing measures has no significant effect on the DAU of the social media. Theoretical implications and managerial guidelines are also discussed.

• 대한산업공학회지
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• 제22권2호
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• pp.265-276
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• 1996

Multimedia systems present information by various media, for example, video, sound, music, animation, movie, etc., in addition to the text which has long been used for conveying the information. Among many multimedia applications, the multimedia information retrieval systems commercialized in the forms of multimedia encyclopedia CD-ROMs, benefited from various media for their ability to present information in an efficient and complete way. But using several media, on the other hand, may cause end users' confusion and furthermore, poorly designed user interface often exacerbates the situation. In this study, the multimedia systems were studied from the standpoint of usability. The conceptual framework of the user interface of the multimedia system was newly defined. And 100 initial variables for user interface design of general multimedia systems were suggested through literature survey and expert opinions based upon the framework developed. Among various application areas, the multimedia information retrieval systems were chosen for investigation, and 36 variables particularly relevant to user interface of the multimedia information retrieval systems were selected. According to the sequential research strategy, the variables that were considered to be most important were finally selected through a screening stage. A part of selected variables were verified through a human factors experiment as the first step of sequential research. Based upon the result of the experiment, guidelines for user interface design were provided. For future study, the variables remained will be Investigated and the study will expand to another application areas.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2015년도 추계학술대회
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• pp.954-957
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• 2015

본 논문에서는 안드로이드 플랫폼 기반 다자간 그룹 통신을 이용한 모닝콜 시스템을 제안하였다. 구현된 다자간 그룹 통신은 JAVA NIO, JSP, MySQl, DBMS Pool, GCM 및 JSON 기술들을 융합하여 적용하였으며, 구현 결과 다자간 그룹 통신 및 음성 통신이 설계 규격대로 수행됨을 확인할 수 있었다.

• 한국멀티미디어학회논문지
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• 제24권2호
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• pp.312-319
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• 2021

This study aims to help users to have a more satisfying encounter based on the problems found by comparing and analyzing similar applications. That is, an application that derives intermediate points through the subway, which is a public transportation means, and provides information on nearby convenience facilities was proposed. The middle point calculation process uses the dijkstra algorithm, which stores the minimum number of nodes in the stored path from the first input location to the last location. The stack and arraylist are used to search all paths from the first input position to the last position, and then the path with the smallest number of nodes is selected. After that, the number of stations in the route is divided in half and the resulting station is output. In addition, this study provides information on convenience facilities near intermediate points in order to have differences from similar applications. It categorizes within a 1km radius of the point and provides a function that helps to conveniently identify only facilities around the middle point. In particular, by visualizing the number of convenience facilities with radar charts and numbers, it is possible to grasp the commercial district around the midpoint at a glance.