• 한국문헌정보학회지
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• 제44권4호
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• pp.155-178
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• 2010

Assessment of information credibility is a ubiquitous human activity given that people constantly make decisions and selections based on the value of information in a variety of information seeking and use contexts. Today, people are increasingly engaging in diverse online activities beyond searching for and reading information, including activities such as creating, tagging and rating content, shopping, and listening to and watching multimedia content. The Web 2.0 environment presents new challenges for people because the burden of information evaluation is shifted from professional gatekeepers to individual information consumers. At the same time, however, it also provides unprecedented opportunities for people to use tools and features that help them to make informed credibility judgments by relying on other people's ratings and recommendations. This paper introduces fundamental notions and dimensions of credibility, and contends that credibility assessment can be best understood with respect to human information behavior because it encompasses both the level of effort people exert as well as the heuristics they employ to evaluate information. The paper reports on a survey study investigating people's credibility judgments with respect to online information, focusing on the constructs, heuristics, and interactions involved in people's credibility assessment processes within the context of their everyday life information activities. Using an online activity diary method, empirical data about people's online activities and their associated credibility assessments were collected at multiple points throughout the day for three days. The results indicate that distinct credibility assessment heuristics are emerging as people engage in diverse online activities involving more user-generated and multimedia content. A heuristic approach suggests that people apply mental shortcuts or rules of thumb in order to minimize the amount of cognitive effort and time required to make credibility judgments. The paper discusses why a heuristic approach is key to reaching a more comprehensive understanding of people's credibility assessments within the information-abundant online environment.

• Asia pacific journal of information systems
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• 제26권4호
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• pp.526-541
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• 2016

This research aims to examine the predictive power of multiple online stock message boards, namely, NAVER Finance and PAXNET, which are the most popular stock message boards in South Korea, in stock market activities. If predictive power exists, we then compare the predictive power of multiple online stock message boards. To accomplish the research purpose, we constructed a panel data set with close price, volatility, Spell out acronyms at first mention.PER, and number of posts in 40 companies in three months, and conducted a panel vector auto-regression analysis. The analysis results showed that the number of posts could predict stock market activities. In NAVER Finance, previous number of posts positively influenced volatility on the day. In PAXNET, previous number of posts positively influenced close price, volatility, and PER on the day. Second, we confirmed a difference in the prediction power for stock market activities between multiple online stock message boards. This research is limited by the fact that it only considered 40 companies and three stock market activities. Nevertheless, we found correlation between online stock message board and stock market activities and provided practical implications. We suggest that investors need to focus on specific online message boards to find interesting stock market activities.

• 한국문헌정보학회지
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• 제48권2호
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• pp.159-175
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• 2014

본 연구의 목적은 고령층의 온라인 정보활동이 삶의 만족감에 어떤 영향을 미치는지를 분석하는 것이다. 온라인 정보활동은 크게 '정보활용수준', '정보활용시간', '정보기기활용수준'으로 범주화하고, 삶의 만족감은 행복감, 건강상태, 경제상태를 포함하여 측정하였다. 설문조사를 통하여 수집한 490부의 응답지 중 불성실한 응답지를 제외한 총 341부를 SPSS 19(Statistical Package for Social Science)와 Amos 통하여 연구모형을 분석하였다. 분석결과 고령층의 온라인 정보활용 수준과 온라인 정보활용 시간은 각각 정보기기활용 수준에 긍정적인 영향을 미치는 것으로 나타났고, 정보기기를 활용하는 수준이 높을수록 자신의 삶의 만족감에 긍정적 영향을 미치는 것으로 나타났다. 하지만 온라인 정보활용 수준과 온라인 정보활용 시간은 그들의 삶의 만족감에는 직접적인 영향은 미치지는 않는 것으로 나타났다.

• 공학교육연구
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• 제24권1호
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• pp.24-33
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• 2021

As online learning continues to be extended, many engineering colleges are engaged in online learning activities. One of the core competencies required of engineering students in a knowledge-convergence society is communication skills. Online discussion activities are frequently used in educational field to improve communication skills. Efforts are being made to provide visual dashboards in online discussion activity systems to more effectively support online discussion activities. However there is less qualitative studies on students' experience in discussion activities. The purpose of this study is to explore the experience of engineering students participating in discussion activities using online discussion systems and visual dashboards. We interviewed 15 students who participated in online discussion activities to achieve their research objectives about their experience in utilizing the online discussion system, their perception of visual dashboards, and their experience in discussion activities. As a result of the study, students' perception of the use of the online discussion activity system, the visual dashboard, and the perception of a sense of social presence were understood. To be more effective in providing tool support, such as discussion activity systems and visual dashboards in online discussion activities, instructors need to understand the nature of learners' online discussion activities.

• 한국컴퓨터정보학회논문지
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• 제27권8호
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• pp.225-232
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• 2022

본 연구는 코로나19 엔데믹 상황에서 오프라인 여가활동과 온라인 여가활동이 우울증상에 어떠한 영향을 미치는지를 알아보는데 목적이 있다. 이를 위해 성별, 연령, 최종학력, 월소득과 같은 인구통계학적 특성, 관계적 여가활동과 같은 오프라인 여가활동유형, 정보탐색활동, 오락활동과 같은 온라인 여가활동유형, 우울수준으로 구성된 이론적 모델을 제안하였다. 연구가설을 검증하기 위하여 설문조사를 실시하였으며, 총 99부의 설문지를 최종분석에 활용하였다. 주요 분석 결과를 보면 첫째, 월소득은 우울수준을 예측하는 주요 요인으로 일관되게 확인되었다. 둘째, 오프라인 관계적 여가활동과 온라인 정보탐색형 여가활동이 활발할수록 우울수준이 낮아지는 것으로 밝혀졌다. 본 연구는 우울수준을 감소시킬 수 있는 여가활동의 특성을 파악했다는 점에서 시사점이 있다.

• 통상정보연구
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• 제6권1호
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• pp.237-247
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• 2004

Online people conduct all kinds of business activities, such as promoting the sales of products and services, reading newspapers, watching TV and movies, and sending business messages by e-mail, by e-voice and by e-fax. Computers with access to the Internet are defined by the United Nations as the fourth media characterized by instantaneousness, openness, limitlessness, boundlessness and globalization. With the development and popularization of the Internet and the advance of the information technology in China, Intellectual Property Rights (IPRs) violations online have frequently occurred in e-business activities. IPRs protection online has posed a great challenge not only for business managers and officials, but also for judges and lawyers because the rapid development of the Internet has created a legal vacuum governed by no laws in IPRs violation and protection online in China.. The paper at first classifies IPRs into several categories, then reveals China's serious problems and challenges of IPRs violations online and stresses the necessity of China's IPRs protection online. Finally it puts forward some suggestions concerning IPRs protection online.

• 한국문헌정보학회지
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• 제54권4호
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• pp.283-315
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• 2020

본 연구는 대학기록관의 온라인 홍보 활동을 평가하기 위한 지표를 개발하여 평가하고, 이를 바탕으로 개선방안을 논의하는 것을 목적으로 한다. 이를 위해 첫째, 대학기록관 홍보의 개념과 정의에 근거하여 평가가 이루어져야 하는 항목들을 유형화하고 둘째, 기록관을 비롯한 유관문화유산기관들과 비영리기관의 온라인 홍보 평가지표들을 취합하여 4가지 영역에서의 홍보 평가지표를 도출하였다. 셋째, 개발된 평가지표를 활용하여 대학기록관 웹사이트를 구축하여 기록정보서비스를 제공하고 있는 10개 기관을 선정하여 홍보 활동과 내용을 평가하였다. 평가결과, 대부분의 대학기록관은 기록정보서비스와 홍보가 부재하거나 미비함을 확인할 수 있었고, 기록정보서비스가 개발되어 있다 하더라도 적극적인 안내가 이루어지고 있지 않음을 확인할 수 있었다. 이 결과에 근거하여 온라인 홍보 활동을 활성화하기 위한 개선방안들과 후속연구를 제언하였다.

• Asia pacific journal of information systems
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• 제24권4호
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• pp.559-575
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• 2014

Individual investors are increasingly flocking to message boards to seek, clarify, and exchange information. Businesses like Seekingalpha.com and business magazines like Fortune are evaluating, synthesizing, and reporting the comments made on message boards or blogs. In March of 2012, Yahoo! Finance Message Boards recorded 45 million unique visitors per month followed by AOL Money and Finance (19.8 million), and Google Finance (1.6 million) [McIntyre, 2012]. Previous studies in the finance literature suggest that online communities often provide more accurate information than analyst forecasts [Bagnoli et al., 1999; Clarkson et al., 2006]. Some studies empirically show that the volume of posts in online communities have a positive relationship with market activities (e.g., trading volumes) [Antweiler and Frank, 2004; Bagnoli et al., 1999; Das and Chen, 2007; Tumarkin and Whitelaw, 2001]. The findings indicate that information in online communities does impact investors' investment decisions and trading behaviors. However, research explicating the correlation between information on online communities and stock market activities (e.g., trading volume) is still evolving. Thus, it is important to ask whether a volume of posts on online communities influences trading volumes and whether trading volumes also influence these communities. Online stock message boards offer two different types of information, which can be explained using an economic and a psychological perspective. From a purely economic perspective, one would expect that stock message boards would have a beneficial effect, since they provide timely information at a much lower cost [Bagnoli et al., 1999; Clarkson et al., 2006; Birchler and Butler, 2007]. This indicates that information in stock message boards may provide valuable information investors can use to predict stock market activities and thus may use to make better investment decisions. On the other hand, psychological studies have shown that stock message boards may not necessarily make investors more informed. The related literature argues that confirmation bias causes investors to seek other investors with the same opinions on these stock message boards [Chen and Gu, 2009; Park et al., 2013]. For example, investors may want to share their painful investment experiences with others on stock message boards and are relieved to find they are not alone. In this case, the information on these stock message boards mainly reflects past experience or past information and not valuable and predictable information for market activities. This study thus investigates the two roles of stock message boards-providing valuable information to make future investment decisions or sharing past experiences that reflect mainly investors' painful or boastful stories. If stock message boards do provide valuable information for stock investment decisions, then investors will use this information and thereby influence stock market activities (e.g., trading volume). On the contrary, if investors made investment decisions and visit stock message boards later, they will mainly share their past experiences with others. In this case, past activities in the stock market will influence the stock message boards. These arguments indicate that there is a correlation between information posted on stock message boards and stock market activities. The previous literature has examined the impact of stock sentiments or the number of posts on stock market activities (e.g., trading volume, volatility, stock prices). However, the studies related to stock sentiments found it difficult to obtain significant results. It is not easy to identify useful information among the millions of posts, many of which can be just noise. As a result, the overall sentiments of stock message boards often carry little information for future stock movements [Das and Chen, 2001; Antweiler and Frank, 2004]. This study notes that as a dependent variable, trading volume is more reliable for capturing the effect of stock message board activities. The finance literature argues that trading volume is an indicator of stock price movements [Das et al., 2005; Das and Chen, 2007]. In this regard, this study investigates the correlation between a number of posts (information on stock message boards) and trading volume (stock market activity). We collected about 100,000 messages of 40 companies at KOSPI (Korea Composite Stock Price Index) from Paxnet, the most popular Korean online stock message board. The messages we collected were divided into in-trading and after-trading hours to examine the correlation between the numbers of posts and trading volumes in detail. Also we collected the volume of the stock of the 40 companies. The vector regression analysis and the granger causality test, 3SLS analysis were performed on our panel data sets. We found that the number of posts on online stock message boards is positively related to prior stock trade volume. Also, we found that the impact of the number of posts on stock trading volumes is not statistically significant. Also, we empirically showed the correlation between stock trading volumes and the number of posts on stock message boards. The results of this study contribute to the IS and finance literature in that we identified online stock message board's two roles. Also, this study suggests that stock trading managers should carefully monitor information on stock message boards to understand stock market activities in advance.

• 통상정보연구
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• 제17권2호
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• pp.41-65
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• 2015

본 연구는 기업의 웹마케팅 성과를 이용자의 개인정보제공행동의 수준으로 구분하여 측정하고자 하였다. 질적수준이 낮은 개인정보는 이후 기업의 성과로 이어질 개연성이 낮아 효율적인 마케팅자료로 보기 어렵기 때문이다. 본 연구는 이용자의 개인정보제공행동의 수준이 곧 정보의 질적수준을 결정할 것으로 보고, 개인정보를 제공하는 이용자들의 행동을(적극적 정보제공, 선택적 정보제공, 정보제공의 회피)으로 구분하였다. 연구결과를 통해 기업의 웹마케팅활동에 따라 질적으로 상이한 성과수준을 살펴보고자 하였다. 전자상거래 이용자 245명을 대상으로 실증분석한 결과, 웹사이트 평판은 신뢰를 기반으로 적극적 개인정보행동을 일으키는 주요한 단서임을 알 수 있었다. 또한. 정보활용수준이 높다고 지각할수록 이용자는 개인정보제공을 회피하는 것으로 나타났다. 마지막으로 해당 웹사이트에 불신의 정도가 높은 경우 기업에게 마케팅에 투자한 자원 대비 효과적인 성과물을 얻어낼 수 없다는 것을 파악하였다. 즉, 기업이 무분별하고 과도한 정보수집활동, 개인정보의 무단 공유나 유출, 그리고 질적으로 낮은 웹사이트 품질과 같이 웹사이트에 대한 불신을 높일 수 있는 자극들을 웹환경에서 적극적으로 관리할 때 기업이 투입한 자원 대비 마케팅 자료로서 효율성이 높은, 즉 질적수준이 높은 개인정보를 수집할 수 있을 것이다.

• 정보보호학회논문지
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• 제25권5호
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• pp.1097-1114
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• 2015

빠르게 성장한 게임 시장의 규모에 따라 게임봇, 게임핵, 골드파밍, 사설서버, 시스템 해킹, 네트워크 해킹, 계정도용 등과 같은 게임을 이용한 여러 불법 행위가 증가해 왔다. 이러한 불법 행위를 예방 및 탐지하기 위해 게임 보안 솔루션들이 존재하지만 각 게임마다의 특징이 존재하기 때문에 부정행위로부터 보호하는 것에는 어려움이 있다. 또한 게임 보안은 게임의 기획과 조화되는 게임 보안 솔루션 및 탐지 방법들이 필요하다. 본 연구에서는 최근 온라인 게임에서의 보안 관련 연구에 대한 동향을 조사하였다. 온라인 게임에서의 부정행위를 분류하였고, 온라인 게임에서의 각 특징에 따른 부정행위 예방 및 탐지 방법을 분류하였다.