• 제목/요약/키워드: Social Classification

검색결과 940건 처리시간 0.027초

Detecting Malicious Social Robots with Generative Adversarial Networks

  • Wu, Bin;Liu, Le;Dai, Zhengge;Wang, Xiujuan;Zheng, Kangfeng
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제13권11호
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    • pp.5594-5615
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    • 2019
  • Malicious social robots, which are disseminators of malicious information on social networks, seriously affect information security and network environments. The detection of malicious social robots is a hot topic and a significant concern for researchers. A method based on classification has been widely used for social robot detection. However, this method of classification is limited by an unbalanced data set in which legitimate, negative samples outnumber malicious robots (positive samples), which leads to unsatisfactory detection results. This paper proposes the use of generative adversarial networks (GANs) to extend the unbalanced data sets before training classifiers to improve the detection of social robots. Five popular oversampling algorithms were compared in the experiments, and the effects of imbalance degree and the expansion ratio of the original data on oversampling were studied. The experimental results showed that the proposed method achieved better detection performance compared with other algorithms in terms of the F1 measure. The GAN method also performed well when the imbalance degree was smaller than 15%.

뇌성마비 아동에서 기능분류체계와 소아장애평가척도의 기능적 기술 사이 관련성 (Relationship Between Function Classification Systems and the PEDI Functional Skills in Children With Cerebral Palsy)

  • 박은영;김원호
    • 한국전문물리치료학회지
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    • 제21권3호
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    • pp.55-62
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    • 2014
  • This study investigated the relationship between function classification systems and the Pediatric Evaluation of Disability Inventory (PEDI) functional skills in children with cerebral palsy (CP). Two hundred and eleven children with CP participated in this study. The Korean-Gross Motor Function Classification System (K-GMFCS), Korean-Manual Ability Classification System (K-MACS), Korean-Communication Function Classification System (K-CFCS), and self-care, mobility, and social function domains of the Korean-Pediatric Evaluation of Disability Inventory (K-PEDI) functional skills were measured by physical therapists or occupational therapists. All of the function classification systems were significantly correlated with PEDI functional skills ($r_s$=-.549 to -.826) (p<.05). Especially, K-GMFCS, K-MACS, and K-CFCS were correlated significantly with mobility, self-care, and social function, respectively. Using stepwise multiple regression analysis, we established that K-GMFCS, K-MACS, and K-CFCS were predictors of self-care skills (74.3%) and mobility skills (79.5%) of the K-PEDI (p<.05). In addition, K-CFCS and K-MACS were predictors of social function (65.9%) of the K-PEDI (p<.05). The information gathered in this study using the levels measured in the function classification systems may be useful to clinicians for estimating the PEDI functional skills in children with CP.

심리학적 감정과 소셜 웹 자료를 이용한 감성의 실증적 분류 (Empirical Sentiment Classification Using Psychological Emotions and Social Web Data)

  • 장문수
    • 한국지능시스템학회논문지
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    • 제22권5호
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    • pp.563-569
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    • 2012
  • 소셜 웹이 확산되면서 오피니언 마이닝 혹은 감성 분석 연구가 주목을 받고 있다. 감성 분석을 위해서는 감성을 판별하기 위한 감성자원이 제공되어야 한다. 기존 감성 분석에서는 감성의 극성에 대한 강도를 표현하는 방법으로 리소스를 구축하고 이를 통하여 의견의 극성을 결정하였다. 본 논문에서는 의견의 극성뿐만 아니라 긍/부정의 근거가 되는 감성의 카테고리를 구성하고자 한다. 본 논문에서는 합리적인 분류를 위하여 심리학적 감정들을 초기 감성으로 정의한다. 그리고 실제로 소셜 웹에서 사용되는 감성의 분포를 얻기 위하여 소셜 웹의 텍스트를 분석하여 감성 정보를 추출한다. 추출한 감성 정보를 이용하여 초기 감성들을 재분류함으로써 소셜 웹을 위한 감성 카테고리를 구성한다. 본 논문에서는 이 방법을 통하여 23개의 감성 카테고리를 제시한다.

통계학의 학문적 특성에 따른 KDC 문헌분류의 개선방안 (Suggestions for KDC Improvement According to Academic Characteristics of Statistics)

  • 박재혁;김비연
    • 한국도서관정보학회지
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    • 제44권2호
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    • pp.399-422
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    • 2013
  • 이 연구는 KDC에서의 통계학 주제가 사회과학 통계학과 자연과학 수리통계학에 교착분류되는 문제점을 개선하고 세부영역의 체계적 전개방안을 제시하는데 있다. 이를 위해 통계학의 학문적 특성, 국내 대학 통계학과의 현황 및 학과명의 변천과정, 교과과정을 분석하였으며, DDC, LCC, NDC의 문헌분류법과 한국연구재단의 연구분야분류표를 비교 분석하였다. 그 결과 관련학과와 연구분야분류표의 학문적 배경에 따라 사회과학의 통계학을 자연과학 아래로 이치 및 통합하였다. 기존의 사회통계학 주제는 사회과학 연구방법을 보완하여 통계적 연구방법으로 세분하여 전개하였다. 또한, 자연과학의 '확률, 수리통계학'의 표목을 '통계학'으로 수정하고 세부영역의 주제를 체계화하여 확대 전개하였다.

의료기관조제실제제의 전문$\cdot$일반의약품 분류 (Prescription and Non-prescription Drug Classification of Hospital Pharmacy Formulations)

  • 이의경;고리경;장원기
    • 한국임상약학회지
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    • 제10권3호
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    • pp.130-139
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    • 2000
  • This study is intended to set the criteria for the classification of prescription and non-prescription drugs, and classify hospital pharmacy formulations according to the criteria. 717 hospital pharmacy formulations were collected ken the Center for review and evaluation of health insurance, and national provincial offices. Hospital pharmacy formulations were evaluated based on the 'Guidelines on the Hospital Pharmacy Formulations (Notification No. 2000-46)'by the Ministry of Health and Welfare. Drug classification advisory committee was composed of twelve medical and pharmaceutical specialists, and suggested opinions on the drug classification. Among 717 formulations, 651 drugs $(90.8\%)$ satisfied the basic conditions for the hospital pharmacy formulations. 312 formulations $(43.5\%)$ were classified as drugs for the disinfection and tests. For the rest of them, 231 formulations were classified as prescription drugs whereas 108 drugs were as non-prescription drugs. 56 non-prescription drugs were included as hospital formulations, because there were no therapeutic alternatives. Iu sum 599 drugs $(83.5\%)$ were suggested as hospital pharmacy formulations. The study also recommends pharmaceutical companies to produce drugs of limited commercial value, and doctors to change their unique prescribing behavior in order to prevent the abuse of hospital pharmacy formulations.

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뇌졸중환자의 일상생활활동의 만족과 사회적응 능력 증진 사례연구 (A Case Study on the Improvement of Daily Living Activities, Satisfaction and Social Adaptation Performance Among Stroke Patients)

  • 김명섭;김정자
    • 한국임상보건과학회지
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    • 제5권3호
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    • pp.973-980
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    • 2017
  • Purpose. To understand the effectiveness of training programs to improve the daily living activities and social adaption abilities of stroke patients. Methods. The participant included 1 stroke patient in Jeonbuk, from March to August 2016. The test tools used was the Canadian occupational performance measurement, International classification of function, disability and health co-resets. After applying the training program, I compared the daily life satisfaction and social adaption abilities. Results. According to this study, both daily life satisfaction and social adaption abilities improved. Conclusion. In conclusion, after an exercise program, self- help program, and underwater exercise programs, daily life satisfaction and social adaptation levels were improved. Therefore, the programs that apply to stroke patients could be found to be effective.

지능정보사회의 사이버 역기능 분류와 사회적 인식 분석 (A Study on the Classification of Cyber Dysfunction and the Social Cognition Analysis in the Intelligent Information Society)

  • 임규건;안재익
    • 한국IT서비스학회지
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    • 제19권1호
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    • pp.55-69
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    • 2020
  • The Internet cyber space has become more important as it enters the intelligent information society of the 4th Industrial Revolution beyond the information age through the development of ICT, the expansion of personalized services through mobile and SNS, the development of IoT, big data, and artificial intelligence. The Internet has formed a new paradigm in human civilization, but it has focused only on the efficiency of its functions. Therefore, various side effects such as information divide, cyber terrorism, cyber violence, hacking, and personal information leakage are emerging. In this situation, facing the intelligent information society can lead to an uncontrollable chaos. Therefore, this study classifies the cyber dysfunction of intelligent information society and analyzes social cognition, suggests cyber dysfunction standard of intelligent information society, and examines the seriousness of dysfunction, and suggests technical research directions for future technologies and services. The dysfunctional classification of the intelligent information society was classified into five areas of cyber crime and terrorism, infringement of rights, intelligent information usage culture, intelligent information reliability, and social problems by FGI methodology. Based on the classification, the social perception of current and future cyber dysfunction severity was surveyed and it showed female is more sensitive than male about the dysfunction. A GAP analysis confirmed social awareness that the future society would be more serious about AI and cyber crime

CRT 알고리즘을 이용한 우리나라 노인의 사회활동 영향요인 예측 모형 개발 (Development of Predictive Model of Social Activity for the Elderly in Korea using CRT Algorithm)

  • 변해원
    • 한국융합학회논문지
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    • 제9권10호
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    • pp.243-248
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    • 2018
  • 노년기의 사회참여는 사회적 상호작용의 기회를 제공하여 삶의 만족감을 고취시키기 때문에 성공적인 노화를 달성하기 위해서 중요하다. 이 연구는 우리나라 지역사회 노인을 대상으로 노년기 사회 활동의 관련요인과 사회 참여를 예측하는 통계적 분류 모형을 구축하였다. 분석 대상은 2015년도 지역사회 건강조사를 완료한 60세 이상 노인 1,864명(남 829명, 여 1,035명)이었다. 결과 변수는 지난 1달 간 사회 활동 경험(있음, 없음)으로 정의하였다. 예측모형은 Classification and Regression Trees(CRT) 알고리즘 기반 의사결정나무모형을 이용하여 구축하였다. 연구결과, 사회참여의 유의미한 분류 변수는 주관적 건강, 이웃과의 만남빈도, 친척과의 만남빈도, 배우자 동거여부이었고, 그 중에서도 가장 우선적으로 관여하는 예측 요인은 주관적 건강수준이었다. 본 연구의 결과를 기초로 도래하는 초고령사회의 성공적인 노화를 대비하기 위해서 노인의 사회 활동에 대한 사회적 관심과 지원이 요구된다.

한국고용직업분류에 의한 수해양산업의 직업분류에 관한 연구 (A Study on Standard Classification of Fisheries Occupation by KECO)

  • 김삼곤;김종화
    • 수산해양교육연구
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    • 제19권3호
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    • pp.329-345
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    • 2007
  • The purpose of this study was to classify the standard classification of fishery occupations base on KECO(Korean Employment Classification of Occupation) in Korea. The result of this study was as follows. First ranks was fisheries duties, second ranks were classified into five categories. That were administration duties management duties financial affairs duties, social service duties marketing duties individual service duties, construction duties civil engineering duties, machinery duties manufacture duties repairing duties, production duties. Third ranks classify based on second ranks. Administration duties management duties financial affairs duties were classified fishery administration, fishery management, fishery financial affairs. Social service duties marketing duties individual service duties were classified fishery social service, fishery marketing, fishery individual service. Construction duties civil engineering duties were classified fishery construction, fishery civil engineering. Machinery duties manufacture duties repairing duties were classified fishery machinery duties, fishery manufacture, fishery repairing. Production duties were classified fishery processing, marine products, fishery environment. Fourth ranks was classified according to third ranks.

도시지역 주거관련 건축물의 사용실태에 관한 연구 (A Study on the actual condition of Housing Buildings in the Urban area)

  • 김성화;이재훈;김영빈
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2005년도 추계학술대회 논문집
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    • pp.57-61
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    • 2005
  • The objectives of this study are to illustrate an alternative housing type responding to the social requirements and customers' needs, to suggest the improvement plan for the related laws and regulations through survey of the actual condition for housing buildings such multi have been raised in classification due to that the existing law systems including the current use classification of residential buildings have been defined unclearly. Especially, various social problems have yielded in line with emergence of the housing type which is not legally classified as residential however used for the living purpose practically. Current zoning planning and related law system have rigidity. So, It is required to introduce a flexible classification system which protects the residential environment based on the housing purpose, function and habitability and provides correspondence between residence and ownership/management method. The legal classification system should be revised in a way that the housing use classification corresponds with the zoning system through breakdown of the use classification system

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