• International Journal of Internet, Broadcasting and Communication
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• 제14권1호
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• pp.170-181
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• 2022

We live in a digital age. Smartphones are used by everyone from children to the elderly. And many smart devices are pouring out and changing our daily life a lot. However, even in the development of this digital age, there are some marginalized groups. There are also those who are reluctant to expose their information in the digital age. They have difficulty making reservations on their smartphones, using payment systems, logging into the site using various authentication and verification procedures, and entering and leaving buildings. We still carry most IDs, seals, certificates, etc. in physical form. Those who use smartphones are enjoying the convenience of the times. However, among the underprivileged, the desire to pass everything with only one device is growing. In this study, the most suitable smart band model was proposed by collecting the Delphi survey and the opinions of the general public. Future research is required to improve practical usability and utility by developing cheaper and more convenient models.

• 융합경영연구
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• 제5권4호
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• pp.19-28
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• 2017

This study is aiming to suggest baseline date for the establishment of policy alternative to make healthy consumption life of the elderly through investigating and analyzing actual condition of consumption related with the awareness of health functional food such as purchase behavior and consumer's problems about health functional food. Under the assumption that the vitalization of health functional food market will become an important market in the present and in the future, the fundamental marketing information about elder consumers is more important than any other information that is essential for successful marketing to domestic corporations and senior policy experts. In addition, there was a fundamental significance to provide necessary basic data for health promotion of the elderly by offering information about rights and interests of elder consumers who are members of vulnerable social group or right choice of purchasing or intake. The limitations of this study are as follows. First, the subjects were selected who live in Gangwon-do with the age of 60 and over due to the limitation of sampling, and that might be shown local characteristics. Therefore, the study result could not be generalized on behalf of all elderly in Korea and it is difficult to apply the result to more segmented market. To solve this problem, studies containing sampling by regional groups might be needed.

• 한국환경보건학회지
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• 제46권1호
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• pp.65-77
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• 2020

Objectives: This study investigated the average number of drinkers in Korea, the number of high-risk drinkers, the average amount of alcohol consumed by high-risk drinkers, and the types of alcohol consumed according to the characteristics of the group of dependent drinkers. Methods: The results were obtained by analyzing the following data: The Global Status Report on Alcohol and Health; Country Profile 2014; WHO Country Profile 2014; Korea National Health and Nutrition Examination Survey 2014, Korean Statistical Information Service; National Tax Statistics-Liquor Tax; Gallup Drinking Frequency Survey 2015 Results: This study found that a large proportion of drinkers in Korea are already high-risk drinkers, and even among drinkers, alcohol consumption was highly biased. It was reported that 49.8% of men in the problem, abuse, and dependence groups accounted for 92.4% of total alcohol consumption among the male population. Notably, the 9.6% of men making up the dependent group consumed more than 30% of the alcohol ingested among males. Women had significant variations within groups that were considered high-risk and exhibited a large share of alcohol consumption in the problem (10.0% of the female population), abuse (1.8% of the female population), and dependence (1.5% of the female population) groups, constituting 72.8% of total alcohol consumption. The average amount of alcohol consumed by drinkers in Korea seems to have exceeded the level of intake by high-risk groups. Alcohol-dependent groups consumed 900.7 mL of soju, 405.2 mL of table wine, and 2,043.8 mL of beer, which is very similar to the consumption average of 2,031 mL of beer and 895.2 mL of soju in the drinking group. Conclusion: It has been shown that men's dependence on alcohol is serious, and it is possible to infer that alcohol consumption in some vulnerable groups is very high. As the average alcohol intake among alcohol-dependent groups and ordinary drinkers is very similar, it is highly likely that the drinker is an alcohol-dependent consumer in Korea.

• Journal of the Korean Data Analysis Society
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• 제20권6호
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• pp.3117-3126
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• 2018

정보보안의 중요성이 대두되고 있는 현재 운영체제 업데이트는 안전한 인터넷 사용 환경을 유지하기 위한 기본 사항이다. 그러나 성별과 연령 등 이용자의 개인적인 속성이나 사회경제적 환경에 따라 정보보안 실천과 관련하여 집단별 격차가 여전히 존재하고 있다. 본 연구는 인터넷 상의 정보보호와 관련하여 침해사고 예방 행위 중 운영체제 업데이트 실시여부가 성별과 연령대 별로 연관성이 있는지를 분석하고, 성별과 연령대가 미치는 영향력을 실증적으로 분석하여 이들 요인에 대한 타당성을 검증하고자 하였다. 이에 본 연구에서는 한국인터넷진흥원이 2016년 조사한 정보보호 실태조사 자료를 기반으로 로지스틱 회귀분석을 실시하였다. 연구결과 성별과 연령대 별 집단의 차이는 운영체제 업데이트의 실시여부에 관련 있는 요인으로 조사되었다. 성별과 연령대 별 요인들이 운영체제 업데이트의 실시여부에 미치는 영향력을 분석한 결과, 성별에 있어서는 운영체제 업데이트 실시여부의 오즈가 남자보다 여자가 0.419배 높다고 추정되었다. 연령대 별 운영체제 업데이트의 실시여부에서는 정보화 취약계층인 50대를 기초로 분석한 결과 50대에 비해 20대는 오즈가 13.266배 높다는 결과가 나왔다.

• 한국학교ㆍ지역보건교육학회지
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• 제17권1호
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• pp.23-33
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• 2016

Objectives: The purpose of this study is analysing the influence of how health behavior such as smoking, drinking, and consuming salt and obesity affects to blood pressure and providing useful data for preventing ischemic heart disease of Peru which is main cause of death since 2012 and promoting healthy lifestyle of community. Methods: At the selected four districts in Lima and Callao region of Peru by KOICA Peru office, survey was conducted among adults over the age of 18. Excepted 19 incomplete people for the missing, 686 people were analysed in this survey. Results: There was no significant relationship between blood pressure and drinking and salt intake. By regression analysis, systolic blood pressure was significantly related with gender, age and abdominal obesity and diastolic blood pressure was significantly related with gender and abdominal obesity. Conclusions: As a result, diastolic and systolic blood pressure are mainly affected by waist circumference and gender. Therefore, It's need to be classifying male into vulnerable groups in the occurrence of hypertension and providing health education and information about hypertension to them. For improving health status of vulnerable group, awareness of hypertension prevention and changing unhealthy lifestyle to healthy lifestyle activities are necessary. In the end, it is necessary to prevent abdominal obesity through periodic health education.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2008년도 추계종합학술대회 B
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• pp.728-731
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• 2008

최근 독립된 네트워크의 구성 및 다양한 컨버전스 디바이스간 상호연결에 대한 요구로 MANET의 연구는 IETF MANET WG, Bluetooth, HomeRF WG에서 활발하게 진행되고 있으며, 유비쿼터스 컴퓨팅 활용은 많은 주목과 고도의 성장을 보이고 있다. MANET에 참여하는 MN들은 호스트와 라우터 기능을 동시에 수행하여 네트워크 환경설정이 쉽고 빠른 대응력으로 임베디드 컴퓨팅에 적합하지만 MN의 이동성으로 인한 동적 네트워크 토폴로지, 네트워크 확장성 결여 그리고 수동적 능동적 공격에 대한 취약성을 지니고 있어 지속적인 보안 서비스를 관리할 수 없다. 본 연구는 경로탐색 및 경로설정을 하는 라우팅 단계에서 악의적인 노드가 라우팅 메시지를 위 변조 하거나 적법한 MN으로 위장하는 공격을 방지하기 위해 AODV 라우팅 프로토콜에 MD5를 적용한 해시된 라우팅 프로토콜을 이용하여 안전성과 효율성을 향상 시켰다.

• 대한안전경영과학회지
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• 제19권1호
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• pp.103-114
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• 2017

The objective of this study is to analyze the needs and determine the requirements of elder drivers for effectively using In-vehicle Information System (IVIS), by reducing cognitive and physical impact on this vulnerable group. The persona method was used to determine the relevant characteristics of older drivers. Task analysis was performed in order to obtain general interaction problems of the personas when using a common function of recent days IVIS. The results were classified in the different usability goals as general requirements, specific needs. This study suggest improvement directions in order to develop an elderly friendly IVIS; in addition, different usability metrics were suggested. In this way, elder drivers would easily interact with new powerful functions supplied by IVIS of modern cars; while improving safety and comfort of an rapidly aging society.

• 정보보호학회논문지
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• 제15권3호
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• pp.109-114
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• 2005

최근 다중 사용자 환경에서 안전한 대리서명을 설계하고자 하는 연구가 진행되면서, threshold 서명 방식을 대리서명에 적용한 threshold 대리서명 기법들이 제안되고 있다. 최근 Hsu와 Wu는 이산대수 문제 기반의 자체인증 공개키(Self-certified public key)를 사용하는 threshold 대리서명 기법을 제안하였다. 본 논문에서는 이 대리서명 기법이 자체인증 공개키의 취약성에 의한 원서명자의 위조 공격 (Original signer's forgery attack)에 취약함을 보임으로써 부인 방지 (nonrepudiation) 성질을 가지지 못함을 확인한다.

• Asian Journal for Public Opinion Research
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• 제11권3호
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• pp.201-233
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• 2023

Persons with disabilities (PwD) are believed to be a group that had a greater risk during the pandemic. While PwD are vulnerable to the spread of COVID-19 due to their high dependence on physical contact, a series of policies restricting public movement during the pandemic had the potential to place PwD in increasingly marginalized situations. This situation reinforces the urgency of crisis communication as one of the critical parts of the COVID-19 response to ensure that all levels and groups of society can accept and understand the flow of information. Using a qualitative approach, this research was conducted through in-depth interviews with PwD age 17-50 in the city of Makassar, Indonesia. The results of this study suggest that crisis communication during the pandemic should involve participatory communication, which focuses on collaboration with empowerment. The PwD communities need to be actively engaged during the communication process of a pandemic crisis to ensure that inclusiveness is always taken into account. During the distribution of information, the relevant health officers or the government at the regional level need to carry out more frequent socialization and special services for PwD based on the characteristics of their disabilities.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권12호
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• pp.3976-3990
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• 2022

Currently, cross-attention is widely used in Siamese trackers to replace traditional correlation operations for feature fusion between template and search region. The former can establish a similar relationship between the target and the search region better than the latter for robust visual object tracking. But existing trackers using cross-attention only focus on rich semantic information of high-level features, while ignoring the appearance information contained in low-level features, which makes trackers vulnerable to interference from similar objects. In this paper, we propose a Multi-level Cross-attention Siamese network(MCSiam) to aggregate the semantic information and appearance information at the same time. Specifically, a multi-level cross-attention module is designed to fuse the multi-layer features extracted from the backbone, which integrate different levels of the template and search region features, so that the rich appearance information and semantic information can be used to carry out the tracking task simultaneously. In addition, before cross-attention, a target-aware module is introduced to enhance the target feature and alleviate interference, which makes the multi-level cross-attention module more efficient to fuse the information of the target and the search region. We test the MCSiam on four tracking benchmarks and the result show that the proposed tracker achieves comparable performance to the state-of-the-art trackers.