• 한국IT서비스학회지
• /
• 제14권4호
• /
• pp.137-157
• /
• 2015

The development of Social Network Service (SNS) has brought many positive changes to the ways people communicate, interact and share information. However, using the SNS does not always leads to in a positive results, particularly when it is addictively used. In fact, the addictive use of SNS results in many negative effects in our society. Recently, SNS users feel negative emotions such as expecially stress and fatigue while using SNS. Thus, the purpose of this study is to empirically examine antecedents of user fatigue on SNS, which can be explained by the degree of Individual, environment and SNS characteristics. This study also examines consequences of user fatigue on SNS. Lastly, we examine the moderating effects of Habit among SNS fatigue, barrier of living and task performance decline. The data for empirical analysis were collected 401 responses on SNS users in Korea. The results of this study are as follows; First, reputation perception, loneliness, unwanted relation, privacy concern, information overload, social presence and interaction are significantly related to SNS fatigue. Second, SNS fatigue, barrier of living and Task performance decline are significantly related to discontinuous usage intention. Third, the moderating effect of Habit of SNS using is found in the relationship among SNS fatigue, barrier of living and task performance decline. Based on the results of this study, Theoretical and practical suggestions were discussed.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제13권6호
• /
• pp.3258-3279
• /
• 2019

Recently, ransomware has earned itself an infamous reputation as a force to reckon with in the cybercrime landscape. However, cybercriminals are adopting other unconventional means to seamlessly attain proceeds of cybercrime with little effort. Cybercriminals are now acquiring cryptocurrencies directly from benign Internet users without the need to extort a ransom from them, as is the case with ransomware. This paper investigates advances in the cryptovirology landscape by examining the state-of-the-art cryptoviral attacks. In our approach, we perform digital autopsy on the malware's source code and execute the different malware variants in a contained sandbox to deduce static and dynamic properties respectively. We examine three cryptoviral attack structures: browser-based crypto mining, memory resident crypto mining and cryptoviral extortion. These attack structures leave a trail of digital forensics evidence when the malware interacts with the file system and generates noise in form of network traffic when communicating with the C2 servers and crypto mining pools. The digital forensics evidence, which essentially are IOCs include network artifacts such as C2 server domains, IPs and cryptographic hash values of the downloaded files apart from the malware hash values. Such evidence can be used as seed into intrusion detection systems for mitigation purposes.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2014년도 추계학술대회
• /
• pp.438-440
• /
• 2014

최근 폭발적으로 증가하는 SNS서비스의 상업적으로 이용하려는 움직임이 활발하다. 따라서 본 논문은 실시간 SNS 환경에서 제조기업과 제품의 평판에 관련된 정보를 정확하게 분석 할 수 있는 방안을 제시한다. 크롤링 방식으로 수집된 SNS의 텍스트 데이터들에 대한 형태소 분석을 수행하여 단어 간 연관성을 파악한다. 또, 문장에서 추출된 형태소는 구축된 감성사전을 통해 통계적으로 분석하여 이를 시각화 하여 보여준다. 이때, 추출된 단어가 감성사전에 존재하지 않을 경우 이를 자동으로 추가하는 기법을 제안한다.

• 한국정보시스템학회지:정보시스템연구
• /
• 제31권2호
• /
• pp.159-177
• /
• 2022

Purpose Online reviews are critical for sales of online shopping platforms because they provide useful information to consumers. As the eCommerce market grows rapidly, the role of online reviews is becoming more important. The purpose of this study is to analyze how online reviews written by domestic consumers affect product sales by classifying the types of products. Design/methodology/approach This study analyzed how the effects of review characteristics(reviewer reputation, reviewer exposure, review length, time, rating, image, and emotional score) on the usefulness of online reviews differ depending on the product types. Subsequently, how the impact of review attributes (review usefulness, number of reviews, ratings, and emotional scores) on product sales differs according to each product type was compared. Based on the FCB Grid model, the product type was classified into high involvement-rational, high involvement-emotional, low involvement -rational, and low involvement-emotional product types. Findings According to the analysis result, the characteristics of reviews useful to consumers were different for each product type, and the review attributes affecting product sales were also different for each product type. This study confirmed that it revealed that product characteristics are major consideration in evaluating the review usefulness and the factors affecting product sales.

• Journal of Information Technology Applications and Management
• /
• 제11권2호
• /
• pp.101-124
• /
• 2004

The exponential growth of the Internet has been the advent of buying and selling products and services over the Internet. In Korea, electronic commerce including Internet commerce reached a ￦6,534 billion industry in the year 2002. This paper presents the importance of understanding and managing consumer trust to sellers succeed in Internet commerce. We tested a trust model that includes seller's trustworthiness-based factors and consumer's personality-based factors. We found that seller's trustworthiness-based factors lead to greater consumer trust in Internet shopping through the consumer's perceptions about integrity, benevolence, reputation, and size, but consumer's personality-based factors containing five traits, extraversion, agreeableness, conscientiousness, openness, and trust propensity, have not a significant effect on consumer trust. We also confirmed a positive relationship between consumer trust in Internet shopping and consumer intention to buy.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2003년도 하계종합학술대회 논문집 Ⅲ
• /
• pp.1307-1310
• /
• 2003

본 논문에서는 사용자 개개인에 최적화된 아바타를 생성하기 위해 대화형 진화연산(Interactive Genetic Algorithm, IGA)을 적용하는 방법을 제안하고 있다. 대화형 진화연산은 사용자의 선택을 적합도 평가에 사용하는 방법이기 때문에, 사용자의 개인적인 취향을 아바타 생성 과정에 반영할 수 있다. 본 연구에서는 기존의 대화형 진화연산이 가지고 있는 단점을 극복하기 위해 hidden population 기법과, simplified genotype 기법을 제안한다. 이러한 방법들은 단시간 내에 최적화된 결과물을 생성하도록 유도함으로써 IGA 시스템의 최대 문제점인 사용자의 피로도를 최소화한다 마지막으로, 제안하고 있는 알고리즘의 우수성을 증명하기 위해 사용자의 만족도나 신뢰도를 측정할 수 있는 독자적인 평가 방법을 소개하고 있다

• 한국조리학회지
• /
• 제10권4호
• /
• pp.201-214
• /
• 2004

The brand image had an effect on customer loyalty degree "Traditional characteristic", "Reliability", "Future events sliced raw fish directivity". With it appears, causing the effect which is powerful in customer loyalty degree "Traditional characteristic or reputation of restaurant", "Reliability of advertisement". The brand image had an effect on customer satisfaction "Reliability", "Customer directivity", "Traditional characteristic". With appears and with it is referred from above together "Traditional characteristic of restaurant" or "Reliability of advertisement public information", "Policy of the restaurant management customer first of all poem".

• 무역상무연구
• /
• 제29권
• /
• pp.143-172
• /
• 2006

This study focuses on the risk management of "Digital Goods" appeared with the progress of information technology(IT) in international transaction. As a result of that digital goods have a lot of uncertainty between the general goods or service which have been deal with object of international transaction broadly because digital goods hold uniqueness. In this study, the author give a definition of "Digital Goods" and make an examination of uniqueness of that in international transaction. Next, six risks are defined base on risk theory and risk analysis matrix applying risk mapping model is made. Conclusionally, risk transfer as insurance is adequate to manage business risk, security risk, credit risk and legal risk. Meanwhile, risk avoidance is adequate to manage reputation risk and market risk. But, this study have following three limits. Firstly, concerning definition of the risk, real case is not applied owing to lack of transaction data. Secondly, measuring of the risk is not based on absolute data but relative data. Lastly, suggesting way of risk management is not concrete and practical to international trader of digital goods.

• 한국의류학회지
• /
• 제31권4호
• /
• pp.594-603
• /
• 2007

The purpose of this study was to examine which variables affect customer relationship management in TV home shopping. Three hundred customers who had purchased fashion products in TV home shopping had participated in this study. The data was analyzed by factor analysis, t-test, correlation analysis and path analysis using SPSS program. As the result, 'service', 'information', 'contents', 'reputation', and 'benefits' variables had the effects on 'trust': especially, 'service' had the major effects on 'trust' The 'trust' and 'security' had the effects on 'commitment'. The 'price' variable had only effect on relationship maintenance. Also, 'trust' and 'commitment' had the 'relationship maintenance' Specifically 'commitment' had higher effect on relationship maintenance than 'trust' did. The results of this study would provide CRM marketing strategy for fashion marketers of TV home shopping.

• 대한치과기공학회지
• /
• 제44권2호
• /
• pp.53-59
• /
• 2022

Purpose: This study examined the factors influencing the choice of dental clinics by individuals who received orthodontic treatment for malocclusion. Methods: Participants were 320 male and female college students in Daegu and Gyeongsangbuk-do who had received orthodontic treatment in dental clinics for malocclusion. They were surveyed about their choices of dental clinics. Of the 320 questionnaires, 294 (91.9%) were used for analysis, and surveys with insufficient responses or errors were excluded. Results: The factors influencing the choice of dental clinics varied among the participants. Furthermore, factors that most commonly affected their choices were, in order, trust in dentists' skills and medicine used, information from community sources, friendliness of the dentist, friendliness of clinic staff, cleanliness of the hospital, availability of up-to-date medical facilities and equipment, convenience of location, and recommendations by acquaintances. Conclusion: Factors underlying the choice of dental clinics varied among the participants. Typically, these choices were strongly influenced by factors such as reputation, professionalism, and friendliness.