• Journal of Information Processing Systems
• /
• 제19권3호
• /
• pp.289-301
• /
• 2023

Due to the development and dissemination of modern technology, anyone can easily communicate using services such as social network service (SNS) through a personal computer (PC) or smartphone. The development of these technologies has caused many beneficial effects. At the same time, bad effects also occurred, one of which was the spam problem. Spam refers to unwanted or rejected information received by unspecified users. The continuous exposure of such information to service users creates inconvenience in the user's use of the service, and if filtering is not performed correctly, the quality of service deteriorates. Recently, spammers are creating more malicious spam by distorting the image of spam text so that optical character recognition (OCR)-based spam filters cannot easily detect it. Fortunately, the level of transformation of image spam circulated on social media is not serious yet. However, in the mail system, spammers (the person who sends spam) showed various modifications to the spam image for neutralizing OCR, and therefore, the same situation can happen with spam images on social media. Spammers have been shown to interfere with OCR reading through geometric transformations such as image distortion, noise addition, and blurring. Various techniques have been studied to filter image spam, but at the same time, methods of interfering with image spam identification using obfuscated images are also continuously developing. In this paper, we propose a deep learning-based spam image detection model to improve the existing OCR-based spam image detection performance and compensate for vulnerabilities. The proposed model extracts text features and image features from the image using four sub-models. First, the OCR-based text model extracts the text-related features, whether the image contains spam words, and the word embedding vector from the input image. Then, the convolution neural network-based image model extracts image obfuscation and image feature vectors from the input image. The extracted feature is determined whether it is a spam image by the final spam image classifier. As a result of evaluating the F1-score of the proposed model, the performance was about 14 points higher than the OCR-based spam image detection performance.

• 한국환경교육학회지:환경교육
• /
• 제14권2호
• /
• pp.116-132
• /
• 2001

The goal of the environmental education in High School is to make students survey and work out the issues on environment and to help them continue and improve the work. It is important that we should educate students the rational ability of decision-making. The more they can make decisions rationally, the more they participate actively in that. The purpose of this study is to develope the model of a new teaching-learning method coinciding with the goal of the environmental education of Social studies in High School. This study is backed up by the following developing processes. To begin with, the contents related to environmental problems in Social Studies Curriculum are being investigated. To urge the importance of STS(Science, Technology and Society), 1 will present the righteous understanding of Science in societal contexts, the development of rational decision-making abilities, and the cognitive connections between society and science. For this, 1'm representing a new model of learning-teaching method, backed up by Constructivism, especially Vygotsky's ZPD theory, giving 4 steps from everyday concepts to natural lingistic thought. Based on the above hypothesis, at last I will represent a STS whose topic is a problem of beach preservation because I intend to show the possibility of STS on the environmental education of Social Studies through this study. This study will help us lay a foundation stone of introducing STS in environmental education of Social Studies.

• 대한간호학회지
• /
• 제34권5호
• /
• pp.781-790
• /
• 2004

Purpose: The purpose of this study was to develop a model of an elderly health promotion center after witnessing the effect of a social support program on dependent variables in older adults at a local community health center. Method: The subjects were 60 female adults over 65 years dwelling in a rural area, and they were divided into experimental and control groups each with 30 people. A social support program was implemented 6 hours a day, 3 times a week, for 4 months in the experimental group. Included was health assessment, health education, counseling, consultation, exercise, physical & occupational therapy, primary care, recreation, lunch & transfer service. Data was collected from May 1stto September 14th, 2002 by questionnaires, and analyzed by $x^2$-test, t-test, Pearson's correlation coefficient and stepwise multiple regression using SAS. Result: The social support program in the elderly was very effective on all dependent variables of physical health (t=4.68, p=.001), health knowledge (t=3.60, p=.001), life satisfaction (t=8.65, p=.001), and health promoting behaviors (t=5.23, p=.001). Conclusion: The Social Support Program at a Community Health Center was effective on health promoting behaviors in the elderly.

• 산업경영시스템학회지
• /
• 제35권3호
• /
• pp.7-15
• /
• 2012

Recently, 'Social Commerce' has shown such a rapid growth along with the development of social media such as 'Twitter' and 'Facebook.' Yet, with the quantitative growth, some problems regarding consumer dissatisfaction has constantly occurred. It is essential for the enterprises to study and reflect a customer satisfaction about goods and service they provide regarding the characteristic of the social commerce scientifically and actively. So, this study measures service quality of social commerce market using SERVQUAL model which was established by Parasuraman (1985). The impact on customer satisfaction was analysed using multiple regression analysis. As a result of the analysis, we found that the tangibility and empathy are important factors for service quality in the social commerce market.

• 아동학회지
• /
• 제30권3호
• /
• pp.85-98
• /
• 2009

The purpose of this study was to examine the path model of child's sex, temperament, maternal parenting behavior, and child's emotion regulation on child social behaviors. The subjects were 286 elementary school children. Data were gathered through questionnaires reported by mothers and teachers. Path analysis revealed that (1) mother's overprotective or coercive parenting behaviors effected neither child's emotion regulation nor social behaviors (2) child's sex and activity level effected child's aggression both directly and indirectly through child's emotion regulation (3) child's 'activity level' and 'avoidance' temperament effected child's social withdrawal both directly and indirectly through child' emotion regulation. Findings underscore the role of emotion regulation as a mediator in predicting child aggression and social withdrawal.

• Human Ecology Research
• /
• 제60권2호
• /
• pp.231-242
• /
• 2022

This study examines the relationship of adult attachment, social support, and subjective happiness of university students, and confirm the mediating effect of social support in the relationship between adult attachment and subjective happiness. Participants in this study consist of 284 university students enrolled in G city. Data were analyzed using SPSS and AMOS to conduct descriptive statistics, correlation analysis, and a structural equation model. The main findings are as follows. First, Attachment anxiety and attachment avoidance showed negative correlations with social support and subjective happiness. And social support showed a positive correlation with subjective happiness. Second, social support showed a partial mediating effect on the effect of attachment anxiety and attachment avoidance on the subjective happiness of university students. This study is meaningful in providing basic data for educational and counseling interventions that enhance subjective happiness of university students.

• The Journal of Asian Finance, Economics and Business
• /
• 제7권9호
• /
• pp.673-685
• /
• 2020

Financial literacy is one of the sustainable development goals of huge concern of governments. Governments explore solutions addressing policies to improve financial literacy. Nevertheless, financial management has such a broad scope and is not just limited to knowledge. As human nature, individuals are born with different confidence levels that include various financial abilities. This study aims to investigate the household-financial efficacy through the application of psychometric instruments, risk preference, and demographic characteristics toward consumption decision behavior. The research is based on a survey 479 households in the peninsular Malaysia, and utilizes the structural equation model, cluster proportional and systematic random sampling, and two measurements - composite reliability and average variance extracted. Results show that households' financial efficacy is one of the critical factors that explain the households' consumption decision behavior. Also, risk preference, gender and area location (rural or urban) of the household determined the consumption decision behavior of the household. The effectiveness of consumption decision is not only determined by financial literacy, but also financial efficacy. The implications of this paper may help to design policies in narrowing the broad gap between the rural and urban level of financial efficacy. The government needs to take appropriate actions to fix it.

• 문화기술의 융합
• /
• 제7권2호
• /
• pp.177-184
• /
• 2021

본 연구는 평생교육프로그램 개발 및 평가 과정 중 요구분석 단계에서 개인적 요구와 사회적 요구도를 확인할 수 있는 평생교육프로그램 사회적 요구분석 모형을 개발하는 것이 목적이다. 이 연구의 주요 과정과 내용은 다음과 같다. 첫째, 한국평생교육 6진 분류체계에 근거한 질문항목으로 설문지를 만들어 요구도 조사의 결과를 프로그램 개발에 적용할 수 있도록 내용을 구성하였다. 둘째, 개인적 요구와 사회적 요구도를 동시에 측정할 수 있도록 설문지를 구성하였다. 셋째, 재구성하여 개발한 요구분석 설문지를 사용하여 평생교육 요구 조사를 실시하고 t-검정, Borich의 요구도, The Locus for Focus 모델을 통해 개인적 요구도와 사회적 요구도를 모두 고려한 요구분석 모형을 적용하였다. 요구분석 결과, 개인적 요구도와 사회적 요구도가 모두 높은 것으로 나타났다. 이 중 자격인증과 같은 개인적 요구도는 낮지만 사회적 요구도가 높은 것으로 확인되었다. 이는 개인의 요구는 없지만 사회적으로 필요한 프로그램이 개설되어야 하는 당위성을 대변해주는 결과이다. 따라서 본 연구에서 제시하는 요구 조사 설문방법과 요구분석 우선순위 결정 모형을 활용하여 개별 평생교육기관들이 학습자의 요구를 조사하여 분석한다면 사회적으로 반드시 필요한 프로그램들이 개설되는 계기가 될 수 있을 것이다.

• 한국아동복지학
• /
• 제36호
• /
• pp.133-163
• /
• 2011

본 연구는 미국 저소득 미혼모가구의 사회적 지지가 아동의 문제행동과 인지능력에 미치는 영향을 분석하였다. 스트레스-대응모델과 가족과정모델, 사회적 지지에 관한 이론적 관점을 기초로 사회적 지지가 아동발달에 영향을 제공하는 직접효과와 미혼모의 양육스트레스를 매개로 한 간접효과를 분석하였다. 본 연구를 위해 미국 취약가족아동복지연구의 종단패널자료를 사용하였으며, 전체 1,315명의 저소득 미혼모가구와 빈곤아동이 분석에 사용되었다. 분석결과, 사회적 지지는 아동문제행동에 직접적인 영향을 제공하는 것으로 분석되었으며, 양육스트레스를 매개로 한 간접효과도 발견되었다. 반면에 사회적 지지는 아동인지능력에 직접적으로 유의미한 영향을 제공하지는 않으나 양육스트레스와 아동문제행동을 매개로 한 간접효과를 제공하는 것으로 나타났다. 본 연구결과를 토대로 저소득 미혼모가구의 경제적 환경을 개선하고 양육스트레스를 완화하기 위한 정책적 함의와 서비스방안에 대해 논의하였다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제15권12호
• /
• pp.5097-5105
• /
• 2014

Knowledge of health and community psychology in health professionals influences psychosocial and community determinants of health and promoting participation in disease prevention at the community level. This paper appraises the potential of knowledge on psychology in health care professionals and its contribution to community empowerment through individual behavior change and health practice. The authors proposed a schematic model for the use of psychological knowledge in health professionals to promote participation in health interventions/disease prevention programs in developing countries. By implication, the paper provides a vision on policies towards supporting breast cancer secondary prevention efforts for community health development in Asian countries.