• 제목/요약/키워드: home training

검색결과 672건 처리시간 0.027초

다중모형조합기법을 이용한 상품추천시스템 (Product Recommender Systems using Multi-Model Ensemble Techniques)

  • 이연정;김경재
    • 지능정보연구
    • /
    • 제19권2호
    • /
    • pp.39-54
    • /
    • 2013
  • 전자상거래의 폭발적 증가는 소비자에게 더 유리한 많은 구매 선택의 기회를 제공한다. 이러한 상황에서 자신의 구매의사결정에 대한 확신이 부족한 소비자들은 의사결정 절차를 간소화하고 효과적인 의사결정을 위해 추천을 받아들인다. 온라인 상점의 상품추천시스템은 일대일 마케팅의 대표적 실현수단으로써의 가치를 인정받고 있다. 그러나 사용자의 기호를 제대로 반영하지 못하는 추천시스템은 사용자의 실망과 시간낭비를 발생시킨다. 본 연구에서는 정확한 사용자의 기호 반영을 통한 추천기법의 정교화를 위해 데이터마이닝과 다중모형조합기법을 이용한 상품추천시스템 모형을 제안하고자 한다. 본 연구에서 제안하는 모형은 크게 두 개의 단계로 이루어져 있으며, 첫 번째 단계에서는 상품군 별 우량고객 선정 규칙을 도출하기 위해서 로지스틱 회귀분석 모형, 의사결정나무 모형, 인공신경망 모형을 구축한 후 다중모형조합기법인 Bagging과 Bumping의 개념을 이용하여 세 가지 모형의 결과를 조합한다. 두 번째 단계에서는 상품군 별 연관관계에 관한 규칙을 추출하기 위하여 장바구니분석을 활용한다. 상기의 두 단계를 통하여 상품군 별로 구매가능성이 높은 우량고객을 선정하여 그 고객에게 관심을 가질만한 같은 상품군 또는 다른 상품군 내의 다른 상품을 추천하게 된다. 제안하는 상품추천시스템은 실제 운영 중인 온라인 상점인 'I아트샵'의 데이터를 이용하여 프로토타입을 구축하였고 실제 소비자에 대한 적용가능성을 확인하였다. 제안하는 모형의 유용성을 검증하기 위하여 제안 상품추천시스템의 추천과 임의 추천을 통한 추천의 결과를 사용자에게 제시하고 제안된 추천에 대한 만족도를 조사한 후 대응표본 T검정을 수행하였으며, 그 결과 사용자의 만족도를 유의하게 향상시키는 것으로 나타났다.

감각통합 기반의 가족중심코칭이 자폐스펙트럼장애 아동의 작업수행에 미치는 효과 (The Effect of Family-Centered Coaching Based on Sensory Integration on the Performance of Children with Autism Spectrum Disorder)

  • 김윤성;김경미;장문영;홍소영
    • 대한감각통합치료학회지
    • /
    • 제19권2호
    • /
    • pp.12-25
    • /
    • 2021
  • 목적 : 감각통합기반의 가족중심코칭이 자폐스펙트럼장애(Autism Spectrum Disorder; ASD)아동의 작업수행도와 만족도에 미치는 효과를 알아보고자 하였다. 연구방법 : 2020년 4월 16일~ 2020년 8월 6일까지 기준에 부합하는 3-6세 ASD 아동 10명과 보호자 10명이 참여하였다. 캐나다 작업수행 평가(Canadian Occupational Performance Measure; COPM)로 아동의 작업 수행도와 만족도를 평가하였고, 목표성취척도(Goal Attainment Scaling; GAS)로 아동의 작업수행을 평가하였다. 실험군은 기존에 받고 있는 감각통합치료와 함께 주 1회 60분, 4주간 가정방문 및 영상통화로 시행되는 목표활동에 대한 개별화된 가족중심코칭을 받았다. 통제군은 기존에 받고있는 감각통합치료와 함께 목표활동에 대한 감각통합기반의 일반적인 상담으로 진행하였다. 중재 전과 후의 집단별 COPM의 수행도와 만족도, GAS 점수 변화를 비교하기 위해 Wilcoxon 부호 순위 검정을 사용하였고, 중재 전후 집단 간의 COPM의 수행도와 만족도, GAS의 점수의 차이를 비교하기 위해 Mann-Whitney U 검정을 사용하였다. 두 집단 간의 효과크기를 확인하기 위해 Cohen's d를 사용하였다. 결과 : 실험군과 통제군 모두 중재 전과 후에 COPM 수행도와 만족도, GAS의 점수에서 통계적으로 유의한 차이를 보였다(p<.05). 집단 간의 중재 전과 후의 COPM 수행도 점수는 통계적으로 유의한 차이를 보이지 않았지만, Cohen's d 값의 결과 COPM 수행도(d=.913)에서 큰 효과를 보였다. COPM 만족도와 GAS 점수는 모두 두 집단 간 통계적으로 유의한 차이를 보였고(p<.05), Cohen's d 값의 결과 COPM 만족도(d=2.768), GAS 점수(d=2.786) 모두 큰 효과를 보였다. 결론 : 감각통합기반의 가족중심코칭이 감각통합기반의 일반적인 상담보다 ASD 아동의 작업 수행도와 만족도에 긍정적인 영향을 미치는 것으로 볼 수 있다.

코로나 19시대의 한국교회 교육부 여름 사역 동향 분석 및 만족도 조사 : 2020년부터 2022년까지 (Analysis and Satisfaction Survey of Summer Camp Trends of the Education Ministry of Korean Church in the 10th Age of COVID-19 : From 2020 to 2022)

  • 김재우
    • 기독교교육논총
    • /
    • 제71권
    • /
    • pp.277-303
    • /
    • 2022
  • 2020년부터 시작된 코로나19 팬더믹은 한국교회에 많은 변화를 이끌어냈다. 예배시간의 변화와 형태뿐만 아니라 목회의 정의 및 방향과 철학까지 재정립할 수밖에 없는 상황을 만들었다. 코로나19 팬더믹 초기의 한국교회는 이것을 위기로 인식하였으나 점차 이것들을 기회로 여기며 긍정적 결과를 내기 위해 노력하였다. 교육부서 역시 많은 변화를 겪었으며 특별히 여름 사역에 있어서 형태와 장소 및 방법은 다른 어떤 교회 행사나 예배보다 극적인 변화를 겪은 것으로 보이나 이것에 대한 정확한 데이터는 수집되지 않았다. 이에 따라 오륜교회가 다음 세대 사역을 위해 설립한 사단법인 꿈이있는미래 (대표: 김은호 목사)는 코로나19 팬더믹이 시작되던 2020년부터 매년 꿈이있는미래 회원으로 등록된 한국교회 교육부를 대상으로 여름 사역에 대해 설문을 하여 그 결과를 분석하고 한국교회 여름 사역에 대한 정보를 제공하였다. 2021년에 이어 2022년에도 비슷한 설문 조사가 진행되었으며 260여 개의 교회가 응답하였고 그 결과는 다음과 같다. 2022년 한국교회 교육부 여름 사역은 코로나19 팬더믹 이전의 형태로 상당수 회귀 되었다. 상당수 온라인으로 진행되던 2021년과는 달리 81% 이상이 오프라인으로 여름 캠프를 진행했다고 응답하였으며 외부 캠프를 진행하거나 참석하는 것 역시 31%에 달하였다. 역할의 중요도에서 역시 온라인이 주를 이루던 때는 부모와 교사의 역할을 동등하게 보거나 부모를 강조하지만 오프라인 행사가 진행된 이번 여름 조사에서는 90%의 응답자가 담당 사역자나 부서 교사의 역할이 중요하다고 응답하였다. 여름 행사로는 여름성경학교와 수련회가 주를 이루었지만, 전체 응답자의 25%가 국내외 선교와 전도를 했다고 응답할 정도로 다른 사역의 비중 역시 높아졌다. 2021년에 비해 유아부와 유치부, 초등부와 중고등부까지 모든 부서에서 여름 캠프 참여도가 높아졌으며 특별히 유아부와 중고등부에서의 참여도가 크게 높아졌다. 여름 캠프를 준비하면서 가장 주안점을 두는 것은 콘텐츠와 주제라고 응답한 사람이 가장 많았으며 아이들의 접근성을 주요하게 보는 것은 2021년에 비하여 크게 감소하였다. 여름 캠프를 진행하지 못한 응답자들을 대상으로 그 이유에 관한 기술을 종합한 결과 약 40%가 봉사 인원 부족으로 여름 캠프를 진행하지 못했다고 응답하였다. 이는 코로나19를 원인으로 지목한 30%를 웃도는 수치로 한국교회와 교단 차원에서 해결해야 하는 시급한 문제로 볼 수 있다. 이 외에도 본 논문은 각 질문에 대한 세부변화에 대하여서도 언급함으로 2020년부터 2022년에 이르는 여름 캠프의 변화에 대해서 언급하였다.

곡성 함허정(涵虛亭)의 경관짜임과 의미경관 (The Landscape Configuration and Semantic Landscape of Hamheo-pavilion in Gokseong)

  • 이현우;심우경;노재현;신상섭
    • 한국전통조경학회지
    • /
    • 제33권1호
    • /
    • pp.52-64
    • /
    • 2015
  • 본 연구는 곡성 함허정(전남유형문화재 제160호)을 중심으로 '현장조사 문헌조사 인터뷰' 등의 연구방법을 토대로 연구대상 일원의 풍수형국과 경관짜임 및 조영의도 그리고 의미경관의 특성을 추적한 것이다. 함허정 일원의 입지 및 조망적 조영특성의 분석과 해석의 일환으로, 함허정 일원의 경관상에 드러난 호혜적 자연관과 경관짜임이 어떠한 형태 및 방식으로 표출되었는가를 구체적으로 밝힌 연구결과는 다음과 같이 축약된다. 첫째, 함허정은 심광형(沈光亨, 1510~1550)이 중종30년(1535)에 군촌(현(現). 전남 곡성군 입면 제월리)에 처소 및 강학을 위한 군지촌정사를 창건한 이후, 지근거리에 1543년 학문연구와 유식(遊息)을 위해 지은 누정이다. 함허정과 군지촌정사가 자리한 군촌마을은 순자강(섬진강)을 마주한 전형적인 배산임수 국면인데, 진산인 동악산은 소가 강가에 누워 한가로이 되새김질 하는 와우형(臥牛形)으로 해석되며, 함허정 일원은 목동(牧童)이 강가에서 피리를 부는 형국으로 와우(臥牛)가 적초(積草案, 풀더미)를 구비하여 평안과 풍요를 누릴 수 있는 길처로 회자된다. 특히, 함허정 뒷동산은 거북이 용궁으로 입수하는 혈맥으로 거북(또는 자라)의 등 위에 앉은 건물[구형(龜形)]이 함허정이며, 절벽 아래 남측의 하중암도(河中巖島)인 구암조대(龜巖釣臺)와 용암(龍巖)은 거북이 지향한 해중 신선경(海中 神仙景)으로 해석된다. 둘째, 함허정은 곡성8경의 제3경 순강청풍과 제9경 설산낙조(雪山落照)의 풍광시점장이면서, 곡성 입면8경의 제2경 함허순자와 제3경 천마귀암(天馬歸岩)의 풍광시점이기도 하다. 한편 음양접합과 같은 '산태극(山太極) 수태극(水太極)'으로 배열된 순자강5곡의 제4곡 경물로서 도학 및 성리학적 토포스로 본 초월적 풍경이자 감각적 투시를 통한 굽음의 미학으로 재생산되고 있다. 특히 비변사인방안지도(18C 중엽)와 옥과현지(1788년) 등에 순자강5곡 중 제2곡 합강정과 제4곡 호연정(함허정), 그리고 제3곡 무진정이 묘사되었음을 볼 때 순자강5곡 경물은 피안(彼岸)과 차안(此岸)의 세계를 넘나들며 선경세계로 귀의하는 장소정체성은 물론 조선후기 명소적 연계경관으로서의 지명도를 엿볼 수 있다. 셋째, 비워둠의 미학이 절묘하게 드러난 함허정은 상수리나무 굴참나무 소나무 등 노거수 수림경관, 구암조대와 용암, 첩석(疊石) 등 바위경관, 군촌마을 문화경관 등이 지근경(至近景)으로 펼쳐지고, 중경요소로 순자강 평호(平湖)와 마산봉, 고리봉 등이 산악경관으로 조망되며, 동쪽에서 서쪽으로 고리봉 마산봉 무등산 설산 등이 개방성 강한 $180^{\circ}$ 조망범위로 펼쳐진다. 특히 군지촌정사의 사랑채인 망서재(望瑞齋)의 당호는 "서석산(瑞石山)을 전망하는 집"이라는 뜻을 갖는데, 조산인 무등산과 설산을 앙경(仰景)하는 등 다채로운 차경(읍경(揖景), 환경(環景), 원근(遠近), 앙부경관(仰俯景觀))에 대한 조망지향적 의도가 중층적(中層的) 경관짜임을 통해 구현되고 있다. 넷째, 실존[주거(住居) 강학처(講學處)]과 이상향[누정(樓亭) 재실(齋室)]이 접합된 군지촌 정주환경의 살림집[제월당], 강학처[군지촌정사], 누정[함허정], 재실[구암사, 청송심씨 4현 배향] 및 묘역 등은 '생성-풍요-초월-회귀'로 이어지는 사대부들의 생애주기와 관련한 의미론적 연계경관으로 인식된다. 특히 함허정 관련 시문은 순자강 일대의 가경 예찬과 유유자적한 삶에 대한 호혜적 자연관 묘사가 주를 이루고 있음을 주지할 때, 함허정은 자연귀의와 안분지족의 요체이자 거점처이며, 수심양성(修心養性)하는 은일지소로서의 현학성이 형이상학적 의미경관으로 표출된다.

광주시(光州市) 의료시설(醫療施設)의 입지(立地)와 주민(住民)의 효율적(效率的) 이용(利用) (The Location of Medical Facilities and Its Inhabitants' Efficient Utilization in Kwangju City)

  • 전경숙
    • 한국지역지리학회지
    • /
    • 제3권2호
    • /
    • pp.163-193
    • /
    • 1997
  • 복지사회를 지향하는 오늘날, 건강 중진에 직접 관계되는 의료시설의 접근성 문제는 주요 과제이다. 특히 삶의 질이라는 측면에서 질병의 치료 외에 건강진단, 예방과 회복, 요양 및 응급서비스의 비중이 커지고, 인구의 노령화 현상이 진전되면서 의료시설의 효율적인 입지가 주 관심사로 대두되고 있다. 의료시설은 주민의 생존과 직접 관계되는 기본적이고도 필수적인 중심시설로, 지역 주민은 균등한 혜택을 받을 수 있어야 한다. 이를 실현시키기 위해서는 기본적으로는 효율성과 평등성을 기반으로 1차 진료기관이 균등 분포해야 한다. 이에 본 연구에서는, 광주시를 사례지역으로 선정하여 의료시설의 입지와 그에 대한 주민의 효율적 이용에 관하여 분석하였다. 분석에 있어서는 통계자료와 기존의 연구 성과 외에 설문 및 현지조사 자료를 기반으로 시설 측면과 이용자 측면을 동시에 고찰하였다. 우선 의료 환경의 변화 및 의료시설의 변화 과정을 고찰하고, 이어서 의료시설의 유형별 입지 특성과 주민의 분포 특성을 고려한 지역별 의료수준을 분석하였다. 그리고 유형별 의료시설의 이용행태와 그 요인을 구명한 후, 마지막으로 장래 이용 유형의 예측과 문제지역의 추출, 나아가서는 시설의 합리적인 입지와 경영 방향을 제시하였다. 본 연구 결과는, 앞으로 신설될 의료시설의 적정 입지에 관한 기본 자료로서는 물론 지역 주민의 불평등성 해소라는 응용적 측면에서 의의를 지닌다.

  • PDF

가족계획과 모자보건 통합을 위한 조산원의 투입효과 분석 -서산지역의 개입연구 평가보고- (An Intervention Study on Integration of Family Planning and Maternal/Infant Care Services in Rural Korea)

  • 방숙;한성현;이정자;안문영;이인숙;김은실;김종호
    • Journal of Preventive Medicine and Public Health
    • /
    • 제20권1호
    • /
    • pp.165-203
    • /
    • 1987
  • This project was a service-cum-research effort with a quasi-experimental study design to examine the health benefits of an integrated Family Planning (FP)/Maternal & Child health (MCH) Service approach that provides crucial factors missing in the present on-going programs. The specific objectives were: 1) To test the effectiveness of trained nurse/midwives (MW) assigned as change agents in the Health Sub-Center (HSC) to bring about the changes in the eight FP/MCH indicators, namely; (i)FP/MCH contacts between field workers and their clients (ii) the use of effective FP methods, (iii) the inter-birth interval and/or open interval, (iv) prenatal care by medically qualified personnel, (v) medically supervised deliveries, (vi) the rate of induced abortion, (vii) maternal and infant morbidity, and (viii) preinatal & infant mortality. 2) To measure the integrative linkage (contacts) between MW & HSC workers and between HSC and clients. 3) To examine the organizational or administrative factors influencing integrative linkage between health workers. Study design; The above objectives called for quasi-experimental design setting up a study and control area with and without a midwife. An active intervention program (FP/MCH minimum 'package' program) was conducted for a 2 year period from June 1982-July 1984 in Seosan County and 'before and after' surveys were conducted to measure the change. Service input; This study was undertaken by the Soonchunhyang University in collaboration with WHO. After a baseline survery in 1981, trained nurses/midwives were introduced into two health sub-centers in a rural setting (Seosan county) for a 2 year period from 1982 to 1984. A major service input was the establishment of midwifery services in the existing health delivery system with emphasis on nurse/midwife's role as the link between health workers (nurse aids) and village health workers, and the referral of risk patients to the private physician (OBGY specialist). An evaluation survey was made in August 1984 to assess the effectiveness of this alternative integrated approach in the study areas in comparison with the control area which had normal government services. Method of evaluation; a. In this study, the primary objective was first to examine to what extent the FP/MCH package program brought about changes in the pre-determined eight indicators (outcome and impact measures) and the following relationship was first analyzed; b. Nevertheless, this project did not automatically accept the assumption that if two or more activities were integrated, the results would automatically be better than a non-integrated or categorical program. There is a need to assess the 'integration process' itself within the package program. The process of integration was measured in terms of interactive linkages, or the quantity & quality of contacts between workers & clients and among workers. Intergrative linkages were hypothesized to be influenced by organizational factors at the HSC clinic level including HSC goals, sltrurture, authority, leadership style, resources, and personal characteristics of HSC staff. The extent or degree of integration, as measured by the intensity of integrative linkages, was in turn presumed to influence programme performance. Thus as indicated diagrammatically below, organizational factors constituted the independent variables, integration as the intervening variable and programme performance with respect to family planning and health services as the dependent variable: Concerning organizational factors, however, due to the limited number of HSCs (2 in the study area and 3 in the control area), they were studied by participatory observation of an anthropologist who was independent of the project. In this observation, we examined whether the assumed integration process actually occurred or not. If not, what were the constraints in producing an effective integration process. Summary of Findings; A) Program effects and impact 1. Effects on FP use: During this 2 year action period, FP acceptance increased from 58% in 1981 to 78% in 1984 in both the study and control areas. This increase in both areas was mainly due to the new family planning campaign driven by the Government for the same study period. Therefore, there was no increment of FP acceptance rate due to additional input of MW to the on-going FP program. But in the study area, quality aspects of FP were somewhat improved, having a better continuation rate of IUDs & pills and more use of effective Contraceptive methods in comparison with the control area. 2. Effects of use of MCH services: Between the study and control areas, however, there was a significant difference in maternal and child health care. For example, the coverage of prenatal care was increased from 53% for 1981 birth cohort to 75% for 1984 birth cohort in the study area. In the control area, the same increased from 41% (1981) to 65% (1984). It is noteworthy that almost two thirds of the recent birth cohort received prenatal care even in the control area, indicating that there is a growing demand of MCH care as the size of family norm becomes smaller 3. There has been a substantive increase in delivery care by medical professions in the study area, with an annual increase rate of 10% due to midwives input in the study areas. The project had about two times greater effect on postnatal care (68% vs. 33%) at delivery care(45.2% vs. 26.1%). 4. The study area had better reproductive efficiency (wanted pregancies with FP practice & healthy live births survived by one year old) than the control area, especially among women under 30 (14.1% vs. 9.6%). The proportion of women who preferred the 1st trimester for their first prenatal care rose significantly in the study area as compared to the control area (24% vs 13%). B) Effects on Interactive Linkage 1. This project made a contribution in making several useful steps in the direction of service integration, namely; i) The health workers have become familiar with procedures on how to work together with each other (especially with a midwife) in carrying out their work in FP/MCH and, ii) The health workers have gotten a feeling of the usefulness of family health records (statistical integration) in identifying targets in their own work and their usefulness in caring for family health. 2. On the other hand, because of a lack of required organizational factors, complete linkage was not obtained as the project intended. i) In regards to the government health worker's activities in terms of home visiting there was not much difference between the study & control areas though the MW did more home visiting than Government health workers. ii) In assessing the service performance of MW & health workers, the midwives balanced their workload between 40% FP, 40% MCH & 20% other activities (mainly immunization). However, $85{\sim}90%$ of the services provided by the health workers were other than FP/MCH, mainly for immunizations such as the encephalitis campaign. In the control area, a similar pattern was observed. Over 75% of their service was other than FP/MCH. Therefore, the pattern shows the health workers are a long way from becoming multipurpose workers even though the government is pushing in this direction. 3. Villagers were much more likely to visit the health sub-center clinic in the study area than in the control area (58% vs.31%) and for more combined care (45% vs.23%). C) Organization factors (admistrative integrative issues) 1. When MW (new workers with higher qualification) were introduced to HSC, it was noted that there were conflicts between the existing HSC workers (Nurse aids with less qualification than MW) and the MW for the beginning period of the project. The cause of the conflict was studied by an anthropologist and it was pointed out that these functional integration problems stemmed from the structural inadequacies of the health subcenter organization as indicated below; i) There is still no general consensus about the objectives and goals of the project between the project staff and the existing health workers. ii) There is no formal linkage between the responsibility of each member's job in the health sub-center. iii) There is still little chance for midwives to play a catalytic role or to establish communicative networks between workers in order to link various knowledge and skills to provide better FP/MCH services in the health sub-center. 2. Based on the above findings the project recommended to the County Chief (who has power to control the administrative staff and the technical staff in his county) the following ; i) In order to solve the conflicts between the individual roles and functions in performing health care activities, there must be goals agreed upon by both. ii) The health sub·center must function as an autonomous organization to undertake the integration health project. In order to do that, it is necessary to support administrative considerations, and to establish a communication system for supervision and to control of the health sub-centers. iii) The administrative organization, tentatively, must be organized to bind the health worker's midwive's and director's jobs by an organic relationship in order to achieve the integrative system under the leadership of health sub-center director. After submitting this observation report, there has been better understanding from frequent meetings & communication between HW/MW in FP/MCH work as the program developed. Lessons learned from the Seosan Project (on issues of FP/MCH integration in Korea); 1) A majority or about 80% of the couples are now practicing FP. As indicated by the study, there is a growing demand from clients for the health system to provide more MCH services than FP in order to maintain the achieved small size of family through FP practice. It is fortunate to see that the government is now formulating a MCH policy for the year 2,000 and revising MCH laws and regulations to emphasize more MCH care for achieving a small size family through family planning practice. 2) Goal consensus in FP/MCH shouBd be made among the health workers It administrators, especially to emphasize the need of care of 'wanted' child. But there is a long way to go to realize the 'real' integration of FP into MCH in Korea, unless there is a structural integration FP/MCH because a categorical FP is still first priority to reduce the rate of population growth for economic reasons but not yet for health/welfare reasons in practice. 3) There should be more financial allocation: (i) a midwife should be made available to help to promote the MCH program and coordinate services, (in) there should be a health sub·center director who can provide leadership training for managing the integrated program. There is a need for 'organizational support', if the decision of integration is made to obtain benefit from both FP & MCH. In other words, costs should be paid equally to both FP/MCH. The integration slogan itself, without the commitment of paying such costs, is powerless to advocate it. 4) Need of management training for middle level health personnel is more acute as the Government has already constructed 90 MCH centers attached to the County Health Center but without adequate manpower, facilities, and guidelines for integrating the work of both FP and MCH. 5) The local government still considers these MCH centers only as delivery centers to take care only of those visiting maternity cases. The MCH center should be a center for the managment of all pregnancies occurring in the community and the promotion of FP with a systematic and effective linkage of resources available in the county such as i.e. Village Health Worker, Community Health Practitioner, Health Sub-center Physicians & Health workers, Doctors and Midwives in MCH center, OBGY Specialists in clinics & hospitals as practiced by the Seosan project at primary health care level.

  • PDF

로봇 인터페이스 활용을 위한 가속도 센서 기반 제스처 인식 (Accelerometer-based Gesture Recognition for Robot Interface)

  • 장민수;조용석;김재홍;손주찬
    • 지능정보연구
    • /
    • 제17권1호
    • /
    • pp.53-69
    • /
    • 2011
  • 로봇 자체 또는 로봇에 탑재된 콘텐츠와의 상호작용을 위해 일반적으로 영상 또는 음성 인식 기술이 사용된다. 그러나 영상 음성인식 기술은 아직까지 기술 및 환경 측면에서 해결해야 할 어려움이 존재하며, 실적용을 위해서는 사용자의 협조가 필요한 경우가 많다. 이로 인해 로봇과의 상호작용은 터치스크린 인터페이스를 중심으로 개발되고 있다. 향후 로봇 서비스의 확대 및 다양화를 위해서는 이들 영상 음성 중심의 기존 기술 외에 상호보완적으로 활용이 가능한 인터페이스 기술의 개발이 필요하다. 본 논문에서는 로봇 인터페이스 활용을 위한 가속도 센서 기반의 제스처 인식 기술의 개발에 대해 소개한다. 본 논문에서는 비교적 어려운 문제인 26개의 영문 알파벳 인식을 기준으로 성능을 평가하고 개발된 기술이 로봇에 적용된 사례를 제시하였다. 향후 가속도 센서가 포함된 다양한 장치들이 개발되고 이들이 로봇의 인터페이스로 사용될 때 현재 터치스크린 중심으로 된 로봇의 인터페이스 및 콘텐츠가 다양한 형태로 확장이 가능할 것으로 기대한다.

별업 하거원(何去園) 원림에 투영된 조영사상 연구 (A Study on the Landscape Philosophy of Hageohwon Garden)

  • 신상섭;김현욱;강현민
    • 한국전통조경학회지
    • /
    • 제30권1호
    • /
    • pp.46-56
    • /
    • 2012
  • 유회당 권이진이 대전 무수동에 경영한 별업 하거원 원림의 조영사상을 추적한 연구결과는 다음과 같다. 1) 하거원에 투영된 작정자의 사상적 배경은 '신종추원(愼終追遠)'의 효제사상, 가학의 전통과 도덕적 합리주의에 근거한 무실사상, 청한지연(淸閒之燕)의 유학적 은일사상과 신선풍의 도가적 풍류사상을 들 수 있다. 즉, 이러한 사상적 가치관을 하거원이라고 하는 목적공간에 대입시켜, 상징원(象徵園), 의원(意園), 축경원(縮景園) 등과 같은 별업 원림을 구축하였다. 2) 하거원의 공간구성체계는 위계성을 고려한 3단계 영역으로 대별되는데, 제 1영역은 유회당에서 도경에 이르는 지역으로 거주를 겸한 전이공간, 제 2영역은 수만헌 뜰을 중심으로 요천대와 장우담 그리고 화계, 선묘의 시묘소 등이 펼쳐지는 기념비적(별업) 추모공간, 제 3영역은 하거원의 좌청룡 지맥 그리고 북에서 남쪽을 향하여 계류가 관류하는 동쪽 외원에 속한 은일공간이다. 3) 상징적으로 제 1영역은 유회당-고수대-오덕대로 이어지는 유교적 공간, 그리고 죽천당-도경에 이르는 선경의 세계를 의미적 경관으로 중첩시켜 상징화하였다. 제 2영역은 수만헌과 요천대 그리고 장우담 영역인데, '신종추원(愼終追遠)'의 상징적 가치, 부모에 대한 추모와 그리움 등이 투영되고 있다. 제 3영역은 하거원의 동쪽 외원(배경대 - 운와 - 몽정 - 가산), 그리고 북에서 남으로 물길이 관류하는 계원(溪園) 권역은 동계(東溪) - 활수담 - 수미폭포로 구성되는데, (1) 몽정은 학문을 통해 어리석음을 깨닫는 격물치지의 삶을, (2) 활수담은 명리를 추구하지 않는 초월적 삶의 자세를, 그리고 (3) 장우담은 신선세계로 향하는 선경의 관문을 상징화하고 있다. 4) 하거원 별업의 사유방식은 유교와 도학의 두 알고리즘이 반복적으로 중첩되어 드러난다는 점인데, 공간전개의 서장에 해당하는 납오지와 활수담은 도덕적 합리주의에 바탕을 둔 수심양성의 장을 상징화 하였다. 그리고 하거원의 동쪽 외원에 속하는 몽정 권역은 수신과 학문탐구 등 유교적 가치체계를 주제로 하고 있다면 장우담, 수미폭포, 운와 등은 신선경의 세계를 의미경관으로 대입시킨 척번(滌煩)의 풍류라 할 수 있다. 5) 가산이라고 하는 축경기법을 별업 하거원에 대입시켜 무산12봉과 같은 선경세계를 구축코자 하였는데, 옛 시문에 표현된 상징적 의미를 차용하여 '하방(1), 화봉(2, 3), 출군(4, 5, 6), 신완(7), 취규(8, 9, 10), 처묘(11), 기융(12)'이라 명명했다. 가산을 읊었던 대표적 옛 시인은 왕의, 노삼강, 두보, 한유, 전희성, 범석호 등을 들 수 있는데, 시공을 초월하여 글로서 인연을 맺고 그들이 추구했던 신선경의 세계와 풍류문화를 하거원이라고 하는 별업에 담아 정신세계의 풍요를 구가코자 하였다.

병원 간호사의 선호근무시간대에 관한 연구 (A Study on Hoslital Nurses' Preferred Duty Shift and Duty Hours)

  • 이경식;정금희
    • 대한간호
    • /
    • 제36권1호
    • /
    • pp.77-96
    • /
    • 1997
  • The duty shifts of hospital nurses not only affect nurses' physical and mental health but also present various personnel management problems which often result in high turnover rates. In this context a study was carried out from October to November 1995 for a period of two months to find out the status of hospital nurses' duty shift patterns, and preferred duty hours and fixed duty shifts. The study population was 867 RNs working in five general hospitals located in Seoul and its vicinity. The questionnaire developed by the writer was used for data collection. The response rate was 85.9 percent or 745 returns. The SAS program was used for data analysis with the computation of frequencies, percentages and Chi square test. The findings of the study are as follows: 1. General characteristics of the study population: 56 percent of respondents was (25 years group and 76.5 percent were "single": the predominant proportion of respondents was junior nursing college graduates(92.2%) and have less than 5 years nursing experience in hospitals(65.5%). For their future working plan in nursing profession, nearly 50% responded as uncertain The reasons given for their career plan was predominantly 'personal growth and development' rather than financial reasons. 2. The interval for rotations of duty stations was found to be mostly irregular(56.4%) while others reported as weekly(16.1%), monthly(12.9%), and fixed terms(4.6%). 3. The main problems related to duty shifts particularly the evening and night duty nurses reported were "not enough time for the family, " "afraid of security problems after the work when returning home late at night." and "lack of leisure time". "problems in physical and physiological adjustment." "problems in family life." "lack of time for interactions with fellow nurses" etc. 4. The forty percent of respondents reported to have '1-2 times' of duty shift rotations while all others reported that '0 time'. '2-3 times'. 'more than 3 times' etc. which suggest the irregularity in duty shift rotations. 5. The majority(62.8%) of study population found to favor the rotating system of duty stations. The reasons for favoring the rotation system were: the opportunity for "learning new things and personal development." "better human relations are possible. "better understanding in various duty stations." "changes in monotonous routine job" etc. The proportion of those disfavor the rotating 'system was 34.7 percent. giving the reasons of"it impedes development of specialization." "poor job performances." "stress factors" etc. Furthermore. respondents made the following comments in relation to the rotation of duty stations: the nurses should be given the opportunity to participate in the. decision making process: personal interest and aptitudes should be considered: regular intervals for the rotations or it should be planned in advance. etc. 6. For the future career plan. the older. married group with longer nursing experiences appeared to think the nursing as their lifetime career more likely than the younger. single group with shorter nursing experiences ($x^2=61.19.{\;}p=.000;{\;}x^2=41.55.{\;}p=.000$). The reason given for their future career plan regardless of length of future service, was predominantly "personal growth and development" rather than financial reasons. For further analysis, the group those with the shorter career plan appeared to claim "financial reasons" for their future career more readily than the group who consider the nursing job as their lifetime career$(x^2$= 11.73, p=.003) did. This finding suggests the need for careful .considerations in personnel management of nursing administration particularly when dealing with the nurses' career development. The majority of respondents preferred the fixed day shift. However, further analysis of those preferred evening shift by age and civil status, "< 25 years group"(15.1%) and "single group"(13.2) were more likely to favor the fixed evening shift than > 25 years(6.4%) and married(4.8%)groups. This differences were statistically significant ($x^2=14.54, {\;}p=.000;{\;}x^2=8.75, {\;}p=.003$). 7. A great majority of respondents(86.9% or n=647) found to prefer the day shifts. When the four different types of duty shifts(Types A. B. C, D) were presented, 55.0 percent of total respondents preferred the A type or the existing one followed by D type(22.7%). B type(12.4%) and C type(8.2%). 8. When the condition of monetary incentives for the evening(20% of salary) and night shifts(40% of. salary) of the existing duty type was presented. again the day shift appeared to be the most preferred one although the rate was slightly lower(66.4% against 86.9%). In the case of evening shift, with the same incentive, the preference rates for evening and night shifts increased from 11.0 to 22.4 percent and from 0.5 to 3.0 percent respectively. When the age variable was controlled. < 25 yrs group showed higher rates(31.6%. 4.8%) than those of > 25 yrs group(15.5%. 1.3%) respectively preferring the evening and night shifts(p=.000). The civil status also seemed to operate on the preferences of the duty shifts as the single group showed lower rate(69.0%) for day duty against 83. 6% of the married group. and higher rates for evening and night duties(27.2%. 15.1%) respectively against those of the married group(3.8%. 1.8%) while a higher proportion of the married group(83. 6%) preferred the day duties than the single group(69.0%). These differences were found to be statistically all significant(p=.001). 9. The findings on preferences of three different types of fixed duty hours namely, B, C. and D(with additional monetary incentives) are as follows in order of preference: B type(12hrs a day, 3days a wk): day shift(64.1%), evening shift(26.1%). night shift(6.5%) C type(12hrs a day. 4days a wk) : evening shift(49.2%). day shift(32.8%), night shift(11.5%) D type(10hrs a day. 4days a wk): showed the similar trend as B type. The findings of higher preferences on the evening and night duties when the incentives are given. as shown above, suggest the need for the introductions of different patterns of duty hours and incentive measures in order to overcome the difficulties in rostering the nursing duties. However, the interpretation of the above data, particularly the C type, needs cautions as the total number of respondents is very small(n=61). It requires further in-depth study. In conclusion. it seemed to suggest that the patterns of nurses duty hours and shifts in the most hospitals in the country have neither been tried for different duty types nor been flexible. The stereotype rostering system of three shifts and insensitiveness for personal life aspect of nurses seemed to be prevailing. This study seems to support that irregular and frequent rotations of duty shifts may be contributing factors for most nurses' maladjustment problems in physical and mental health. personal and family life which eventually may result in high turnover rates. In order to overcome the increasing problems in personnel management of hospital nurses particularly in rostering of evening and night duty shifts, which may related to eventual high turnover rates, the findings of this study strongly suggest the need for an introduction of new rostering systems including fixed duties and appropriate incentive measures for evenings and nights which the most nurses want to avoid, In considering the nursing care of inpatients is the round-the clock business. the practice of the nursing duty shift system is inevitable. In this context, based on the findings of this study. the following are recommended: 1. The further in-depth studies on duty shifts and hours need to be undertaken for the development of appropriate and effective rostering systems for hospital nurses. 2. An introduction of appropriate incentive measures for evening and night duty shifts along with organizational considerations such as the trials for preferred duty time bands, duty hours, and fixed duty shifts should be considered if good quality of care for the patients be maintained for the round the clock. This may require an initiation of systematic research and development activities in the field of hospital nursing administration as a part of permanent system in the hospital. 3. Planned and regular intervals, orientation and training, and professional and personal growth should be considered for the rotation of different duty stations or units. 4. In considering the higher degree of preferences in the duty type of "10hours a day, 4days a week" shown in this study, it would be worthwhile to undertake the R&D type studies in large hospital settings.

  • PDF

일부(一部) 중학생(中學生)의 성(性)에 대한 의식행태조사(意識行態調査) (A study on the Awareness and Behavior about Sex of Middle School Students -from middle school students in Taegu area-)

  • 김상옥;남철현
    • 한국학교보건학회지
    • /
    • 제5권2호
    • /
    • pp.42-65
    • /
    • 1992
  • A survey was made of 976 students who were selected among students of 5 middle schools at Taegu so that it could furnish basic knowledge about sex education of adolescents by analyzing students recognition of sex, acquaintance with the opposite-sex, sex-education, The survery took a month from Nov. 1, to Nov 30, 1991. The results of this study are summarized as follows. 1. The general characteristics of the surveyed students. The survey consisted of 332 boys middle school student & 325 girls middle school students, 157 male & 162 female students of coeducational middle schools. 32.9% of them were from the first grade, 33.2% from the second grade & 33.9% from the third grade. 35.7% of them believed in Buddhism, 19% Christianism and the mode of their living standard, 86.7%, fell on 34.7% of their parents engaged in commerce and they were followed by salary man and public officals, 93.1 % of the students, parents were alive. 44.9% of their fathers were graduates of high school and 42.2% of their mothers middle school. 2. Sexual maturity 89.1 % of the surveyed girls had experienced menstruation. The mode of first menstruation, 48.2%, was at the age of 13 and the mean of it was 12.9, 3.7% the surveyed boys had exprienced a wet drem before. The mode of the first wet dream, 40.0%, was at the age of 14 and the mean was 13.4. 21.3% of surveyed students had the experience of masturbation but the number of girls fell far short of that boys. The mode of the first masturbation, 37.0%, was at the age of 14 and the mean was 13.4. 3. The acquaintance and sexual relations with the opposite sex 1) Analyzing the students actual conditions with the opposite, I found out that 52.3% of them wanted to have any kind of relations with the opposite and that 30.25 had already had some kind of relations. 73.2% of the students having relations with the opposite thought the other sex merely as a friend and the number of students who were thinking that way was distributed evenly among schools. 28.8% of the students had got acquainted with the other sex through their frieds and there were not much difference between boys and girls in the method of getting acquainated with the opposite. About 35.2% of the students having relations with the opposite came from the third grade. 47.8% of them answered that the meeting place was not fixed and 26.4% answered that they were meeting their parthers outdoors. 60.7% replyed that they were not disturbed in their studies by the relations with the other sex. 2) Most of the students 79.4%, answered that they had never had sexual relations and 16.3% of the rest said that thery were expressing their feelings by grasping each other's hand. 3) 16.6% of the surveyed students asid that they had the exprience of smoking, 1.1 % of an illusion caused by inhaling chemical addhesives, 44.0% of drinking and 41.4% of warching pornographic films. 4. The knowledge and attitude about the sex 1) The distribution and analysis according to schools and grades : 64.8% of the surveyed students answered correctly to the questions about mensturation, 49.3 % did so about wet dreams, 94.3 % did so about conception, 60.6% did so about child birth, 73.9% did so about AIDS and 50.1 % did so about sexual diseases. Roughly speaking, they had not much knowledge of sexual diseases. 2) The recognition of sex according to schools and grades : 39.0% of the students said that they had worries about sex. 33.1 % of what they worried was concerned with their bodies and 26.8% was about the acqaintance and relationship with the opposite sex. The girls were much more concerned about the former and the boys the latter. 51.1 % of the students asid that they had no specific opinion of masturbation but 19.2% said that's alright if self-restrained. About the sexual intercourse before marriage, 75.7% said negatively. 5. The need for sex education most of the students, 99.4% said they needed sex education and there was not much difference in that thought among schools. And 49.7% answered that schools, families, and societies were equlally important in sex education. About half of the students, exactly 50.2%. considered it as the main reason of sex education to prevent accidents cauesd by ignorance of sex. 81.4% said that they had had some kind of sex education. Most of the educations, 87.0%, had taken place at schools but 5.2% said they were getting most of the knowledge about sex from therir friednds, juniors and seniors. 59.5% of the students who had ever had a sex education said "Just so, so" when asked of the level of their contentment but the number of students who said "satisfied" was only a few, 16.1 %. 20.7% of the survered answered that thery wanted sex education to be made in the course of home life, and 26.6 % of the students most wanted to know about the acquaintance and relationship with the oppostie sex, 29.0% preferred nurse teachers as proper councellors of sex education. The mode of their present councellors, 42.0%, was friends but only 7.6% answered they dicussed with teachers. 6. The correlation analysis between general characteristcs and sexual behaviors of the surveyed students revealed that sex had a signigicant(P<0.001) positive correlation with parents' love toward students(P<0.01), the experience of masturbation, smoking, an illusion caused by inhaling chemical adhesives and the experience of watching pornographic films. And the standard of living had a significant(P<0.01) positive correlation(P<0.01) with grade point average, parents' existence(P<0.01) and parents' love, but a significant(P<0.01) negative correlation with sexual worries. grade point average had a significant(P<0.01)negative correlation with the experience of an illusion caused by chemical adhesives(P<0.01) and smoking. Parents' existence had significant(P<0.01) positive correlations with parents' love and smoking but a significant(P<0.01) negative correlation with the experience of an illusion by chemical adhesives. There was a significant(P<0.01) negative correlations between parents' love and the experience of an illusion by chemical adhesives, and a significant(P<0.001) positive correlation among masturbation and sexual worries, smoking, an illusion by chemical adhesives and the experience of watching pornographic films. There was a significant(P<0.001) positive correlation among acquaintance with the opposite sex, smoking, the experience of an illusion by chemical adhesives and watching pornographic films. Sexual worries had significant(P<0.01) positive correlations with smoking, the experience of an illusion by chemical adhesives and watching pornographic films. smoking had a significant positive correlation with drinking the experirence of, an illusion by chemical adhesives and watching pornographic films. Finally, there was a significant(P<0.01) positive correlation between the drinking experience and the illusion experience by chemical adhesives. According to the results mentioned above, the fact is certain that there is a great need for sex education of adolescents. Therefore, it is desirable that the schools teach sexual physiology and normal positively and that sex education including hygien education be an independant course in the curriculums. Furthermore, it is essential that the schools should have enough nurse teachers to take up sex education, expand training opportunities for them and that they develop educational materials. Considering the unbalance of the level of sex educations between boys and girls, I want to suggest that all boys and girls have sex education evenly and lead happy lives by correction irrational thought about sex, that is to say, sex discrimination, Sex education programs, especially of middle school students, should be reexamined if it is to give the students effective and profitable knowledge about sex. In addition, the government should establish a policy of adolescents' sex education to have healthy opinions of sex settled nationwide.

  • PDF