• 한국정보시스템학회지:정보시스템연구
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• 제28권4호
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• pp.313-332
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• 2019

Purpose As mobile devices are in widespread use and location-based mobile advertising has grown rapidly in recent years, there exists a sharp increase among researchers as well as practitioners in the interest in the determinants of user's attitudes towards location-based Mobile advertising. The purpose of the research is to understand the predictors of attitudes towards location-based Mobile advertising and of the relationship between attitudes and behavioral intention. Design/methodology/approach To this end, we have conducted an online survey using 412 users who have the prior experience of viewing location-based advertising via their mobile devices. We excluded 31 invalid responses and performed an empirical analysis based on 381 responses. Findings The findings indicate that all the factors but 'perceived enjoyment' each have a significant, positive relationship with consumer attitudes towards location-based Mobile advertising. Furthermore, advertising attitude is positively associated with behavioral intention. We provide implications and future research directions based the research findings.

• 품질경영학회지
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• 제50권3호
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• pp.491-502
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• 2022

Purpose: The purpose of this study is to find factors affecting the acceptance intention of autonomous mobility service by applying the unified technology acceptance theory(UTAUT). Methods: The measurement items for each component of this study were modified to meet the purpose of the study by referring to previous studies related to mobility based on UTAUT, which has secured validity and reliability in many studies. The collected data through the online survey were analyzed using hierarchical regression analysis. Results: It was found that performance expectation, effort expectation, social influence, and facilitation conditions for autonomous mobility service had a positive effect on acceptance intention. Also, in this relationship, it was confirmed that driving experience moderated the relationship between performance expectation and acceptance intention, and between effort expectation and acceptance intention. Conclusion: Understanding the public's acceptance of autonomous mobility services, and suggesting strategic implications for the direction of service development to companies that are pushing to enter the autonomous mobility service market.

• 한국치위생학회지
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• 제18권4호
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• pp.597-605
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• 2018

Objectives: This study examined the relationship between oral health symptoms and Internet usage of Korean adolescents for the purpose of identifying problems associated with Internet usage of adolescents and of preparing measures that can raise awareness on the importance of their oral health management. Methods: The data used in this study is from the 2015 Youth Health Behavior Online Survey (YHBOS). Data from all survey participants (n=68,043) were used in the final analysis, using SPSS Ver. 22.0. General linear models were constructed to analyze the relationship between oral health symptoms and Internet usage of adolescents. Results: In the relationship between Internet usage and oral disease symptoms, those who brush less than once a day during weekdays and weekend tended to use Internet at the highest levels: 72.5%, 78.3% (p<0.001). The following variables were found to be related with spending longer time at Internet: male students (p<0.001), students in lower grades (p<0.001), students with lower performance (p<0.001), and those from families of lower economic level (p<0.001). Moreover, those who brush their teeth less than once a day and those who experienced oral disease symptoms, such as pain during chewing, throbbing and shooting pain, and bad breath in the past year spent longer time at Internet. Conclusions: The above findings show that Internet usage and demographic characteristics of the adolescents are associated with their oral health management. Therefore, guidance and interventions are needed for adolescents with problematic Internet use, while continued education is also needed to raise awareness about the importance of oral health management during adolescence.

• 산업융합연구
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• 제21권6호
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• pp.13-21
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• 2023

본 연구의 목적은 마약 범죄와 관련된 언론보도량과 실제 마약사범 검거 건수 간의 관계를 탐구하고, 이 관계가 경찰이 마약 범죄 대응 정책을 수립하는 데 있어 시사하는 바를 확인하는 것이다. 이를 위해, 2001년부터 2022년까지의 국내 온라인 언론보도 데이터 50,355건과 경찰청이 집계한 마약사범 검거 건수 데이터를 수집하고 분석하였다. 분석결과, 마약 범죄 온라인 언론보도량과 실제 마약사범 검거 건수 간에는 유의미한 인과관계가 있음을 확인할 수 있었다. 이 관계는 지배적 이슈의 존재 및 유명 사건 관련 여부에 영향을 받는데, 언론보도량은 마약 범죄 검거 수 외 대중적 관심에도 영향을 받는 것으로 판단되었다. 이러한 결과를 통해 경찰은 국민의 신뢰를 얻기 위하여 범죄 관련 언론보도량을 모니터링하고, 국민적 관심을 받는 범죄에 대한 치안역량을 강화해야 한다고 제안하였다.

• 대한물리치료과학회지
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• 제31권1호
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• pp.53-69
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• 2024

Background: This study aims to examine the multiple-parallel mediation effects of depression, anxiety, and anger in the relationship between anger-out and interpersonal problems in men. In addition, the purpose of this study was provide a basis for supporting psychological services alongside therapeutic services as a way to increase the overall interpersonal relationship of men. Design: Survey. Methods: This study targeted 208 adult men aged 20 to 59 years. Participants were recruited through online cafe postings, and data were collected by running an online survey link. Based on the collected data, correlations between variables were investigated, and multiple parallel mediation analysis was performed using the model (Model 4) presented by SPSS PROCESS Macro. In addition, the significance of statistics was confirmed by applying the bootstrapping method, and the significance of the indirect effect was confirmed by the Sobel Z test. Results: First, Anger-out in men is related to interpersonal problems(β=.614, P<.001). Second, it can see that anger-out not only increases depression·anxiety, but also increases anger. Third, Anger-out has been shown to increase depression, anxiety, and anger, leading to increasing interpersonal problems. Anger-out had a significant effect on depression, anxiety(β=.324 P<.001), and anger(β=.551, P<.001), and depression, anxiety(β=.239, P<.001), and anger (β=.318, P<.01) had a significant effect on interpersonal relationship problems. Lastly, it can be seen that men's anger-out is experienced more as anger than depression or anxiety. Conclusion: When providing medical services to men, I believe that if externally expressed anger is addressed along with therapeutic treatment, invisible depression can also be intervened and a more positive prognosis can be expected

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제4권3호
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• pp.129-134
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• 2015

역 사회공학 기반 스팸공격은 공격자가 직접적인 공격을 수행하는 것이 아니라 피해자가 문제 있는 사이트 주소, 문자, 이메일 수신 및 친구 수락 등을 통해 유도하기 때문에 온라인 소셜 네트워크에서 활성화되기 쉽다. 스팸 탐지 관련 기존 연구들은 소셜 네트워크 특성을 반영하지 않은 채, 관리자의 수동적인 판단 및 라벨링을 바탕으로 스팸을 정상 데이터와 구분하는 단계에 머물러있다. 본 논문에서는 소셜 네트워크 데이터 중 하나인 Twitter spam데이터 셋을 실제로 분석하고 소셜 네트워크에서 다양한 속성들을 반영하여 정상 (ham)과 비정상 (spam)을 구분할 수 있는 탐지 메트릭을 제안한다. 또한, 관리자의 관여 없이도 실시간 및 점진적으로 스팸의 특성을 학습하여 새로운 스팸에 대해서도 탐지할 수 있는 비지도 학습 기법(unsupervised scheme)을 제안한다. 실험 결과, 제안하는 기법은 90% 이상의 정확도로 정상과 스팸을 구별했고 실시간 및 점진적 학습 결과도 정확함을 보였다.

• 디지털융복합연구
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• 제19권9호
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• pp.241-255
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• 2021

본 연구는 핵심어 카드 제작 및 수업시연 온라인 평생교육프로그램이 시간제 발달장애 근로자의 직장출근준비기술에 미치는 효과를 검증하는 데에 목적을 두어 실시되었다. 연구 대상은 시간제로 식당사업체에 근무하고 있는 세명의 발달장애 근로자들이며, 이들이 거주하는 가정과 지하철역을 실험 환경으로 구성하였다. 연구 방법은 단일대상연구를 사용하였으며, 이에 따라 기초선, 중재, 유지를 실험의 설계 조건으로 반영하였다. 연구 결과, 연구 대상들은 핵심어 카드 제작 및 수업시연 온라인 평생교육프로그램을 통하여 직장출근준비기술을 효과적으로 습득 및 유지한 것으로 나타났다. 연구 결과를 통해, 본 연구는 구성된 독립변인과 종속변인이 상호간에 갖는 유의미한 기능적 관계가 타당하다는 측면을 논의 및 결론지을 수 있었다.

• Educational Technology International
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• 제17권2호
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• pp.229-251
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• 2016

This study was designed to investigate the relationship between middle school students' smart media competency and online learning outcomes. The context of this study was on online inquiry-based mathematics and science learning environment, and four-hundred and fifty-five (455) 7^th to 9^th grade students in Korea participated in this research. To assess students' smart device competency, Smart Media Literacy Quotient (SMLQ) which consisted of 18 items regarding the operation ability of smart media and its application (14 items) and positive beliefs of smart media (4 items) was administered to each student. The findings of this study first showed that students' smart media literacy varied according to their characteristics such as gender, grade, class (subject), and socio-economic status. Female students' scores were higher in overall smart media literacy operation and learning ability of smart media than male students. 7^th grade middle school students represented lower smart media literacy scores, compared to 8^th and 9^th graders. Also, minority students were significantly lower in smart media literacy, operation and learning ability of smart media, and positive belief of smart media than the non-minority students. Second, overall smart media literacy and operation and learning ability of smart media varied among high, medium, and low score achievers in inquiry tasks. Low scored students in inquiry tasks were significantly lower in overall smart media literacy and operation and learning ability of smart media than medium scored students. Lastly, smart media literacy also varied by students' dropout/completion. Students who dropped out reported significantly lower scores in overall smart media literacy, operation and learning ability of smart media, and positive belief of smart media.

• International Journal of Advanced Culture Technology
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• 제8권1호
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• pp.98-106
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• 2020

In this paper, we show the career path of college students from the perspective of positive psychology. Specifically we conducted the study to investigate a role of grit in the relationship between college students' occupational calling and academic achievement and career stress. 151 college students participated in this study and they completed the Korean version of the Calling and Vocational Questionnaire, Grit Scale, and Career Stress Scale. To assess their academic achievement, participants agreed to obtain their GPA from online system. The results of this study showed that occupational calling had a positive correlation with academic achievement and negatively correlated with career stress. In addition, it was confirmed that grit mediated the relationship between calling and academic achievement and career stress. Based on these results, the positive effects of occupational calling of college students, implications of this study, and suggestions for future research are discussed.

• 서비스연구
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• 제13권3호
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• pp.105-126
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• 2023

국내 중고차 시장은 지속적으로 성장하고 있으며, 이와 동시에 중고차 온라인 플랫폼 서비스 역시 함께 매년 시장 점유율을 확대하고 있다. 중고차 온라인 플랫폼 서비스는 차량의 제원, 점검 이력, 사고 내역, 그리고 세부 옵션 등을 서비스 이용자에게 제공하고 있다. 대부분의 기존 연구는 차량의 제원과 차량의 일부 옵션을 활용한 중고차 가격의 예측이었으며, 중고차 가격과 일부 제원 변수 간 비선형 관계임을 확인하였다. 이에 따라 연구자들은 이러한 비선형 문제를 해결하기 위해 머신러닝(Machine Learning) 모델의 실행을 제안하였으며, 그 결과 회귀(Regression) 기반 머신러닝 모델은 변수의 실질적인 영향력과 방향성을 알 수 있는 장점이 존재하였으나, 트리(Decision Tree) 기반 머신러닝 모델에 비해 비용함수 수치가 저조한 단점이 존재하였다. 본 연구는 국내 브랜드를 대상으로 차량의 제원과 차량의 옵션, 총 70여 개의 변수를 모두 활용하여 회귀 기반 머신러닝 모델과 트리 기반 머신러닝 모델을 순차적으로 실행하여 두 유형의 머신러닝 모델의 장점을 취합하고자 하였다. 이를 통해 브랜드별 변수의 실질적 영향력과 방향성을 확인한 후 브랜드별 가장 우수한 트리 기반 머신러닝 모델을 선정하였다. 본 연구의 시사점은 다음과 같다. 중고차 온라인 플랫폼 서비스를 이용하는 구매자와 판매자가 전반적인 중고차 가격 예측을 지원할 수 있다. 이에 따라 중고차 온라인 플랫폼 서비스 이용자 간 정보의 비대칭으로 인한 문제 해결 역시 지원이 가능할 것으로 기대한다.