• 스마트미디어저널
• /
• 제2권2호
• /
• pp.20-27
• /
• 2013

The concept of social media is top of the agenda for many business executives and decision makers, as well as consultants try to identify ways where companies can make profitable use of applications such as Netflix, Flixster. The social media is playing an increasingly important role as the information sources for customers making product choices etc. With the flourish of Web 2.0 technology, customer reviews are becoming more and more useful and important information resources for people to save their time and energy on purchasing products that they want. This paper proposes the Bayesian Probabilistic Classification algorithm to mine the social media review, and evaluates it by different splits and cross validation mechanism from the real data set. The explored study experimental results show the robustness and effectiveness of proposed approach for mining the social media review.

• 신재생에너지
• /
• 제6권2호
• /
• pp.5-11
• /
• 2010

This paper reviews three commercial softwares for wind climate data analysis in wind resource assessment; WAsP/Observed Wind Climate, WindRose and Windographer. Windographer is evaluated as the best software because of its variety of input data format, analysis functions, easiness of user interface, etc. For a quantitative understanding of uncertainty depending on software selection, a benchmark is carried out with the met-mast observation dataset at the Gimnyeong Wind Turbine Performance Test Site. It is found that Weibull parameter calculation and air density correction have a dependency on the software so that such uncertainty should be considered when an analysis software is selected. It is confirmed that annual energy production calculated by WAsP using a statistical table of frequency of occurrence may have some error compared to a time-series calculation method used by the other softwares.

• 정보학연구
• /
• 제3권4호
• /
• pp.23-40
• /
• 2000

본 연구에서는 기존의 신용장결제방식의 한계성을 극복하면서 전자상거래시대에 부합되도록 최근 개발된 TradeCard의 본질, 업무절차 및 효용성을 분석하고 TradeCard의 폭넓은 활용을 제한하는 문제점과 해결과제를 구체적으로 제시함으로써 무역실무자들에게 TradeCard의 기본원리를 제공해줌을 목적으로 한다.

• 정보학연구
• /
• 제4권1호
• /
• pp.55-69
• /
• 2001

본 논문에서는 웹브라우저를 이용하여 로봇을 원격 제어한다. 4대의 독립된 PC를 사용하여 각각의 기능을 분리하고 상호 연동하는 구조로 PC를 연결하였다. 조작자가 시간과 장소에 제약받지 않고 웹 브라우저를 이용하여 제어값을 입력하면 제어값은 웹 서버를 거쳐 데이터베이스에 저장된다. 로봇과 연결된 PC는 데이터베이스에서 1ms 간격으로 제어값을 입력받아 제어값의 변화가 있을 경우만 제어값의 변화량으로 로봇이 동작한다. 스텝모터를 이용하여 간단한 로봇을 제작하고 이를 웹 브라우저를 이용하여 실제 동작시킨다. 조작자가 원하는 제어값이 최종 수신단의 로봇에 제대로 전달되어 동작하는지 확인하고 웹브라우저를 이용한 로봇제어의 가능성을 확인하였다.

• 한국정보처리학회:학술대회논문집
• /
• 한국정보처리학회 2017년도 춘계학술발표대회
• /
• pp.503-505
• /
• 2017

최근 길거리나 지하철 등에서 스마트폰을 사용하는 사람을 쉽게 찾을 수 있다. 이러한 스마트폰은 대부분 iOS나 안드로이드 운영체제를 사용한다. 따라서 스마트폰에서 사용하는 앱들은 앱스토어나 구글 플레이에서 받아서 사용한다. 하지만, 필요한 앱을 검색해도 비슷한 앱이 많아서 어떤 것을 사용해야 할지 망설이는 경우가 발생한다. 사용자 평점을 기준으로 앱을 선택한다 하더라도 총 누적 평점이기 때문에 현재 버전의 앱이 실제로 어떨지는 알기 어렵다. 이 논문에서는 사용자가 검색한 단어를 바탕으로 구글 플레이 상의 앱을 추천해주는 시스템을 소개한다. 이 시스템은 검색된 최신 버전의 앱에 대한 평점과 사용자 평가를 종합 및 분석하여 사용자에게 추천한다.

• 대한산업공학회지
• /
• 제41권2호
• /
• pp.185-208
• /
• 2015

The explosive growth of the world-wide-web and the emergence of e-commerce has led to the development of recommender systems. Recommender systems are personalized information filtering used to identify a set of items that will be of interest to a certain user. This paper reviews recommender systems and presents their pros and cons.

• 한국도서관정보학회지
• /
• 제26권
• /
• pp.541-573
• /
• 1997

This study reviews several innovative electronic reference services that will be transformed in the age of the virtual library. This study focused on reference service via E-mail and electronic bulletin board which is regarded as the most important service in a variety of electronic reference services. Through E-mail and the electronic bulletin board, the user submits questions and the librarian responds with the answer. Though interest in using E-mail and electronic bulletin board as a basis for reference service has grown considerably in recent years, it is still in its infancy in Korea. Thus the purpose of this study is to propose a model electronic reference service system using E-mail and the electronic bulletin board for university libraries in Korea. This system consists of the following modules: electronic reference services policy, open reference service via electronic bulletin board, closed reference service via E-mail, and FAQ. This system is meant to be a guide for those considering implementing such a service.

• International journal of advanced smart convergence
• /
• 제9권3호
• /
• pp.28-35
• /
• 2020

YouTube has been gaining popularity all around the world. A lot of companies have created their own YouTube channels to leverage them in diverse ways; they upload commercial videos, show people user reviews, and conduct promotions with their products. Sports clubs are no exception; they upload diverse videos to gain popularity and to interact with their fans. This study analyzes how the English Premier League (EPL) clubs leverage their YouTube channel as soccer (football in European nations) players. YouTube activities of 20 clubs during the 2019/2020 Season are investigated. After careful consideration, we decide to examine two factors of the respective channel of the YouTube: 1) Popularity (the number of views and subscribers) 2) Contents of videos (e.g. interviews and highlight scenes). The study followingly inspects the benefits of utilizing YouTube channels and of direct communication between sports clubs and fans in online settings.

• 한국데이타베이스학회:학술대회논문집
• /
• 한국데이타베이스학회 2010년도 춘계국제학술대회
• /
• pp.299-308
• /
• 2010

The primary objective of this paper is to examine of post acceptance behavior model in VCC services. Based on the relevant literature reviews, this study posits six characteristics, that is, expectation confirmation, perceived usefulness, perceived enjoyment, satisfaction, and continuance intention as key variables to describe the post acceptance behavior model in VCC services. And then we constructed a research model and hypotheses about relationship between these variables. A total 286 usable survey responses of CCC service users have been employed in the analysis. The empirical results of this study are summarized as follows. Firstly, expectation confirmation has a positive effect on the perceived usefulness, perceived enjoyment, and satisfaction. Secondly. perceived enjoyment has a positive effect on the satisfaction. Lastly, perceived usefulness, perceived enjoyment, and satisfaction have a positive effect on the continuance intention. These results will be helpful for the UCC services sector to further develop a service delivery strategies for strengthening the ongoing relationship with customers. Finally, some possible limits of the present research and future directions for such research were discussed.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2006년도 추계학술대회 특별세미나 특별세션
• /
• pp.161-169
• /
• 2006

To develop a Maglev successfully, it is necessary to develop the core technologies such as levitation and propulsion system and construct engineering system which can integrally evaluate performances of Maglev and provide technical reviews parametrically In this paper, we designed the Maglev running performance simulator which can provide decision-making Information for direction of development of Maglev and examination for running performance about the change of various design parameters such as safety and stability, noise, and ride quality. The designed system is an engineering-based system and can be developed using engineering framework by KIMM which can integrate diverse CAE systems in distributed environments and provide systematic information management. And it also provides VR-based visualization and web-based user interface except VR system which requires special hardware system.