• 제목/요약/키워드: Size recommendation services

검색결과 21건 처리시간 0.026초

도서관 빅데이터 서비스 모형 개발에 관한 연구: 공공도서관을 중심으로 (A Study on the Developing of Big Data Services in Public Library)

  • 표순희;김윤형;김혜선;김완종
    • 정보관리학회지
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    • 제32권2호
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    • pp.63-86
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    • 2015
  • 본 연구는 최근 많은 이슈가 되고 있는 빅데이터를 도서관 분야에 적용하여 다양한 형태의 도서관 빅데이터의 활용 가치에 대한 이해를 높이고 이에 대한 수요자의 요구 분석을 바탕으로 공공도서관 빅데이터 서비스 모형을 개발하는 것을 목적으로 하고 있다. 이를 위해 도서관 빅데이터의 개념과 내용 및 가치 등을 고찰하고, 도서관 빅데이터 서비스에 대한 수요 분석을 바탕으로 도서관 빅데이터 서비스 모형을 개발하였다. 서비스 모형 개발을 위해 도서관 빅데이터의 유형에 따라 활용 가능한 도서관 빅데이터를 분석하였으며, 수요자의 요구를 다양한 방법으로 도출하였다. 수요자의 요구 분석은 도서관계 연구자 및 현장 사서와의 심층인터뷰, 표적집단인터뷰(Focus Group Interview, 이하 FGI), 사서 및 이용자 설문조사를 통해 이루어졌다. 이를 바탕으로 총 16개의 도서관 빅데이터 서비스 모형을 정의하고, 서비스의 필요성, 시급성, 개발 가능성을 고려해 최종적으로 사서 의사결정 지원 서비스와 이용자 도서 추천 및 독서이력 관리 서비스 모형을 개발하였다.

분만기관 선택과 이용 후의 평가 (Choice of Medical Care Institution for Delivery and Evaluation of the Institution after Delivery)

  • 권순호;한달선
    • 보건행정학회지
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    • 제8권2호
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    • pp.1-24
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    • 1998
  • There exists a general consensus in Korea that patients tend to concentrate in large hospitals and this tendency is partly responsible for inefficiency in health services. The process of choosing a medical care provider for health care services and evaluating the provider after utilization seems to involve many diverse factors to become very complex. Therefore a systemsatic study is needed to achieve sufficient understanding of the proeess. For this point of view, this study investigates patient's selection of medical care institution for delivery care services and their evaluation of the institution after delivery. In more specific, the objectives of the study are twofold: 1) to identify the factors associated with expectant mothers' choice of type of medical care institution for delivery among tertiary hospitals, general hospitals, small hospitals, and clinics: and 2) to understand the factors affecting patient evaluation of the medical care institution after delivery. The data used for the analysis were collected through face-to-face interviews with those women who had childbirth during the period from January 1, 1996 to the date of interview in February 1998. The survey was conducted using preqared structured questionnaire in Seoul. The sample was drawn from each of arbitrarily defined four regions of Seoul, Northeast, Northwest, Southeast and Southwest, in proportion to the number of births reported in 1996 in each of them. The distribution of the interviewed women by educational level was made similar to that of mothers of new babies reported in 1996. The sample size was planned to be about 300, but ended up with analytical sample of 319. Major conclusions emerged from the analysis can be summarized as follows: 1) Large hospitals were evaluated as much better for technical quality than other types of institutions, whereas they were compared similar to or worse for other attributes. And it was found that technical quality of care is considered as the most important condition of medical care institution for delivery, while the amount of direct cost is considered as the least important one. Taken together, the utilization of large hospitals is not likely to decrease even though they cannot give satisfaction to patients in other aspects than technical quality. 2) The activeness in the search for information affected the respondents' evaluation of medical care institutions, which would influence their later decision or recommendation to other persons as to the choice of source of health care services. Therefore, increased efforts should be directed to improving availability of useful and correct information for patients in relation to the utilization of health care services. 3) Since the findings of this study were obtained from the analysis of delivery care services, their applicability to other kinds of services may be limited. Thus it would be useful to conduct a comparative study of several kinds of services explicitly taking into account the characteristics of those services in the analysis.

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다운로드 기반의 주문형 비디오 서비스에서 다중 지수를 고려한 동영상 프리페칭 기법 (Multi-index Prefetching Mechanism for Download-based Video on Demand Services)

  • 문양찬;임민규
    • 전기학회논문지
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    • 제66권8호
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    • pp.1257-1264
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    • 2017
  • In video content watching service, when a user requests video content, the content server has to transmit the entire video to the client for watching. This transmission delay increases as the size of video content increases. In order to solve the transmission delay problem, a prefetching technique can be used in which a video content to be watched by a user is predicted and transmitted to a client before the user requests it. In this paper, we propose a prefetching system considering multiple indices for video content. In the proposed method, video content to be prefetched is selected by comprehensively analyzing the order relation index indicating the order of viewing the videos of the users, the similarity index between the video contents, and the popularity index reflecting the viewing frequency of the video content. Experimental results show that the maximum accuracy is achieved when prefetching uses only the order relation index for movie contents.

지역아동센터 급식을 위한 적정 배식량 제안 (Recommendation of Serving Size of the Meal Service of Community Child Centers in Korea)

  • 이상은;심재은;권수연;여윤재;윤지현
    • 대한지역사회영양학회지
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    • 제19권4호
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    • pp.361-371
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    • 2014
  • Objectives: This study was performed to set easily applicable portion sizes by sex and age for children at the Community Child Centers (CCC) in Korea. Methods: Considering the age and gender specific energy level at Target Patterns for children aged 6-18 years, which were suggested as a part of the 2010 Korean Food Guidance System (KFGS), we set three meal sizes. We reclassified the recommended daily servings of Grains, Meat fish eggs beans and Vegetables group at Target Patterns into three meal sizes, and then calculated the recommended serving per meal. Each proposed amount of food per meal was calculated based on serving size of foods commonly eaten at KFGS, which was then allocated to five meal components; rice, soup stew, protein and vegetable side-dishes and Kimchi. Each proposed amount of food per meal was applied to 173 menus' recipes from CANpro 3.0 as main ingredient's amounts. We cooked the 173 menus at the medium size and measured their weights after cooking. Results: Each recommended serving per meal was 0.75, 0.9 and 1.2 for Grains; 1.2, 1.6 and 2.4 for Meat fish eggs beans; 2, 2.4 and 2.8 for Vegetables by meal sizes. Among five meal components, the ratio of small and large to medium size was 1/5 less and 1/3 more for rice and 1/3 less and 1/3 more for soup stew, protein side-dish and Kimchi, respectively. We suggested the same amount for a vegetable side-dish to encourage vegetable intake. Proper portion sizes per meal of medium were rice 190 g, soup stew 210 g (solid ingredients 60 g), protein side-dish 100 g (meat eggs beans) and 70 g (fish), vegetable side-dish 80g and Kimchi 30 g. Conclusions: Proper portion size per meal suggested in this study may be useful at the CCC where dietitians are not available and the approach could be applicable to the other types of meal services.

고객별 구매빈도에 동적으로 적응하는 개인화 시스템 : 음료수 구매 예측에의 적용 (The Adaptive Personalization Method According to Users Purchasing Index : Application to Beverage Purchasing Predictions)

  • 박윤주
    • 지능정보연구
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    • 제17권4호
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    • pp.95-108
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    • 2011
  • 인터넷 비즈니스의 활성화에 따라서 기업은 고객의 인물정보 및 거래정보를 활용하여 보다 맞춤화된 개인화 서비스를 제공하고 있다. 기존의 고객군별 예측기법은 유사한 고객들을 군집화하여 고객군별로 예측모델을 수립하는 것으로, 구매가 많고 충성도가 높은 핵심고객에게 요구되는 일대일 서비스를 제공하는 데는 한계가 있다. 반면 일대일 고객별 예측기법은 각 고객에게 고도로 맞춤화된 서비스를 제공하지만, 과거 구매이력이 많지 않은 고객 이나 신규 고객에게는 정확한 개인화 서비스를 제공하지 못한다. 본 연구는 고객의 구매빈도에 따라서 유사 고객들과의 군집화 수준을 동적으로 조정하는 새로운 지능형 개인화 시스템을 제안한다. 제안된 시스템은 과거 구매가 많은 고객들에 대해서는 일대일 예측모델을 수립하지만, 구매 빈도가 낮은 고객의 경우 다른 고객들과의 최적화된 군집화를 통해 예측모델을 수립한다. 본 기법을 Neilsen의 음료수 구매 데이터셋에 적용하여 고객의 일회 구매금액 및 구매품목을 예측한 결과, 기존 두 예측기법들에 비하여 적정한 계산비용(computational cost)으로 더욱 정확한 개안화 서비스를 제공할 수 있음을 확인하였다.

도로 망 데이터베이스를 위한 보로노이 기반의 탐색 방안 (Voronoi-Based Search Scheme for Road Network Databases)

  • 김대훈;황인준
    • 전기전자학회논문지
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    • 제11권4호
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    • pp.348-357
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    • 2007
  • 개인용 이동형 단말기의 개선된 성능과 비용, 그리고 무선 통신 기술의 비약적인 발전으로 인하여, 이를 이용하는 사용자들의 수가 빠른 속도로 늘고 있다. 그에 따라 사용자들에게 다양한 서비스를 제공할 수 있는 기술이 요구하고 있는 시점이다. 현재까지의 연구를 통해 사용자가 필요로 하는 최단 경로 찾기 등의 기술은 많은 연구가 이루어져 있다. 하지만 사용자의 현재 위치에 따라 여러 가지 추천 서비스를 제공할 수 있게 하는 기술은 우리가 필요로 하는 도로 망에서가 아닌 Euclidean spaces에 집중되어 있다. 따라서 우리는 기존의 연구를 확장시켜, 도로 망에서 이러한 요구를 충족시킬 수 있는 방법을 제안한다. 우리가 제안하는 시스템은 질의에 대한 응답을 하기 위해 전처리 단계를 필요로 한다. 이 단계에서는 먼저 전체 도로 망을 몇 개의 Voronoi 다각형으로 나누고, 나누어진 각각의 Voronoi 다각형들에 대한 정보를 계산한다. 이러한 과정에서 도로 망의 규모에 맞춰 자동으로 Voronoi 다각형의 개수를 결정하게 한다. 이를 통해 전체 도로 망의 크기가 변경되더라도, 전처리 단계 정보를 저장하는 공간이 예측 가능하도록 선형적으로 증가되게 하였다. 실제 질의 응답과정에서는 미리 계산된 정보를 이용하여 사용자들에게 빠른 속도의 서비스를 제공 할 수 있게 한다. 실험을 통하여 제안된 시스템이 도로 망에서 최근접 질의와 영역 질의를 효과적으로 처리 하여 탐색 시간과 방문 노드 수에서 많은 이점이 있음을 보인다.

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연관상품 추천을 위한 회귀분석모형 기반 연관 규칙 척도 결합기법 (A Regression-Model-based Method for Combining Interestingness Measures of Association Rule Mining)

  • 이동원
    • 지능정보연구
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    • 제23권1호
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    • pp.127-141
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    • 2017
  • 인터넷과 모바일 관련 기술의 발전과 기기의 보급은 물리적 공간의 제약을 극복하게 하고, 다양한 상품과 서비스를 소비자에게 제공함으로써, 소비자에게 선택의 폭을 넓히는 기회를 제공하는 반면, 많은 시간과 노력을 기울이고도 소비자가 자신의 기호에 적합한 품목을 선택하기 힘들어지는 부작용을 낳았다. 이에 따라, 기업은 추천 시스템을 활용하여 소비자가 원하는 품목을 더 쉽게 찾는 수단을 제공하고 있다. 상품 간의 연관성을 통계적으로 분석하는 연관 규칙 마이닝 기법은 직관적인 형태의 척도를 규칙과 함께 제공함으로써, 이로부터 도출된 규칙에 포함된 품목 간의 관계를 이해하고, 이를 추천에 적용하기 쉽다는 강점을 갖는다. 그러나, 서로 다른 규칙의 척도가 일관되게 어느 한 쪽의 규칙이 더 우위에 있음을 알려주지 못한다면, 수많은 품목 중 추천에 적합한 품목을 적절히 선별해내기 힘든 상황이 발생한다. 본 연구에서는 추천 상품의 순위를 결정할 수 있도록 연관 규칙 마이닝 기법에 회귀분석모형을 보완적으로 적용하는 방안을 제시하고자 수행되었다. 연관 규칙 마이닝에서 보편적으로 사용되고 있는 지지도, 신뢰도, 향상도를 활용하여 모형을 구현함으로써, 직관적으로 이해하기 쉬울 뿐만 아니라, 실무에서도 활용하기 쉬운 방안을 제시하고자 하였다. 국내 최대규모의 온라인 쇼핑몰의 주문 데이터를 활용한 실험을 통해, 제안된 모형으로부터 얻어진 추천 점수를 기반으로 추천상품을 결정하고, 이를 추천에 적용함으로써 추천 적중률을 향상시킬 수 있음을 보였다. 특히, 최근 모바일 상거래가 빠르게 확산됨에 따라, 제한된 화면에 한정된 수의 추천 품목을 제시해야 하는 상황에서 적합한 추천 기법임을 확인할 수 있었다.

진단방사선과(診斷放射線科)의 적정인력(適正人力) 관리(管理)에 관(關)한 연구(硏究) -서울시내 종합병원(綜合病院) 중심(中心)으로- (A Study on the Reasonable Personnel Management of Radiology Department -Centering around the General Hospitals in Seoul-)

  • 정순규
    • 대한방사선기술학회지:방사선기술과학
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    • 제11권2호
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    • pp.27-64
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    • 1988
  • Most hospital administrators in our country have doubted whether or not the size of their hospital personnel staffs, and the personnel management styles implemented are efficient or not. Actually, increased personnel expenditures due to sophisticated specialization of medical practices has become the biggest hospital expense. Therefore, it is said that hospitals can be run move efficiently by implementing reasonable management strategies for hospital personnel management. In this paper, the departments of diagnostic radiography in 16 general hospitals in Seoul, which were classified into 4 groups by the scale of hospital beds, were used as sample cases. Then, the data for the number of X-ray examination by diagnostic item was collected from sample hospitals. The unit hour spent on X-ray examinations in each diagnostic service was quoted from "A Study on setting-up of the relative value units of medical services and on the structure of current fee schedules" written by Mr. Ik Je Seong. The data analysis results are as follows; First, the number of hours per day spent on X-ray examinations in 13 hospitals out of 16 hospitals, was shorter than the general daily working hours (8 hours). Second, in the morning there was not enough time to work for X-ray examinations required, with the available manpower. In the afternoon, however, the situation was diametrically opposed to that in the morning. Third, in light of above results, though most hospitals employ sufficient personnel for the quantity of the actural work, they were always short-handed where their works were performed Fourth, this study tells us that there is a maldistribution of the work in the schedule : too much work for the available personnel in the morning. The following recommendations are resulted from the data analysis described above. First, it is recommended that all out-patients coming again, except specific patients(G. B. or I.V.P. etc) who have to have their X-ray examinations on an empty stomach in the morning among out-patients, be required to visit the hospital in the afternoon. Second, it is recommended that all new out-patients be required to make a reservation in order to equalize the number of patients throughout the day. Third, it is recommended that all in-patients, except specified patients, be arranged to have their X-ray examinations in the afternoon. Fourth, it is recommended that part time workers be employed during peak hours. This recommendation, if applied in a wider scale, would allow hospitals to overcome the problem of the maldistribution of work and personnel, and then more efficient hospital management through the appropirate personnel management procedures could be expected.

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태양객체 정보 및 태양광 특성을 이용하여 사용자 위치의 자외선 지수를 산출하는 DNN 모델 (DNN Model for Calculation of UV Index at The Location of User Using Solar Object Information and Sunlight Characteristics)

  • 가덕현;오승택;임재현
    • 인터넷정보학회논문지
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    • 제23권2호
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    • pp.29-35
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    • 2022
  • 자외선은 노출 정도에 따라 인체에 유익 또는 유해한 영향을 미치므로 개인별 적정 노출을 위해서는 정확한 자외선(UV) 정보가 필요하다. 국내의 경우 기상청에서 생활기상정보의 한 요소로 자외선 정보를 제공하고 있으나 지역별 자외선 지수(UVI, Ultraviolet Index)로 사용자 위치의 정확한 UVI를 제공하지는 못하고 있다. 일부에서는 정확한 UVI의 취득을 위해 직접 계측기를 운용하지만 비용이나 편의성에 문제가 있고, 태양의 복사량과 운량 등 주변 환경요소를 통해 자외선 양을 추정하는 연구도 소개되었으나 개인별 서비스 방법을 제시하지는 못하였다. 이에 본 논문에서는 각 개인별 위치에서의 정확한 UVI 제공을 위한 태양객체 정보와 태양광 특성을 이용한 UVI 산출 딥러닝 모델을 제안한다. 기 수집한 하늘이미지 및 태양광 특성을 분석하여 태양의 위치 및 크기, 조도 등 UVI와 상관도가 높은 요소들을 선정한 후 DNN 모델을 위한 데이터 셋을 구성한다. 이후 하늘이미지로부터 Mask R-CNN을 통해 추출한 태양객체 정보와 태양광 특성을 입력하여 UVI를 산출하는 DNN 모델을 구현한다. 국내 UVI 권고기준을 고려, UVI 8이상과 미만인 날에 대한 성능평가에서는 기준장비 대비 MAE 0.26의 범위 내 정확한 UVI의 산출이 가능하였다.

동병하치 확산을 위한 전략적 방향과 이행방안 (Strategic Direction and Road Map of Expanding Prevention of Winter Disease in the Summer)

  • 송호섭
    • Journal of Acupuncture Research
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    • 제27권3호
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    • pp.147-157
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    • 2010
  • Objectives : The purpose of this study was to propose appropriate strategic directions and road maps for successful achievement of programs preventing winter disease in the summer. Methods : Details on programs preventing winter disease in the summer such as clear concept, theoretical basis, current status, intervention or available prescriptions and indication/contraindication/caution were prepared through the related journal review, upon which an observational study was devised and done for simulation to find out even a trivial problem and to guarantee the safety beforehand. The experimental group was divided into 5 groups by the size of pill and the way ginger is treated; 1cm pill with ginger group, 3cm pill group without ginger, 3cm pill group dipped into ginger, 3cm pill group applying ginger to acupoints and 3cm pill group with ginger Results 1. program preventing winter disease in the summer was defined as representative winter diseases such as common cold, influenza, chronic asthma, chronic bronchitis, allergic rhinitis, emphysema, chronic gastritis and rheumatoid arthritis, and preventive care in the summer, reinforcing deficient yang qi of five viscera by using exuberant yang qi from summer heat. 2. It was based upon historically established theories which is 'nourishing yang qi in the spring and summer', 'long summer, namely rainy spell in the summer overwhelms the winter, because of earth winning water according to the five phases theory' and 'To replenish yang qi is major principle to treat winter diseases, which can be most appropriately and timely applied to the patient with deficient yang qi of five viscera inherently, especially in the three dog days of the summer, because of exuberant exterior yang qi and deficient interior yang qi in the five viscera'. 3. In the adjacent China and Taiwan, acupoint applying method in the three dog days named 'San Fu Tie' have been stirring a boom throughout the nation, in which Xiaochuan Gao was used as a basic prescription and it mainly was applied at bilateral $BL_{13}$, $_{15}$ and $_{17}$ for about 4 hours. As far as domestic current status, the necessity of adopting the above method prior to Herbal formula was also recognised, because not a few koreans have apprehension for the safety of it including medicinal herbs and are reluctant to take it any more due to negative advertisement of narrow minded doctors' association. 4. Indication of acupoint applying method in the three dog days included most of winter diseases such as common cold, influenza, chronic asthma, chronic bronchitis, allergic rhinitis, emphysema, chronic gastritis. contraindication was pregnant woman and the weak such as infants and the old. More attention was paid to grasp firmly the normal reaction following the treatment for preventing side effect and teasing blister. recommendation was also given to abstain from food inducing phlegm and dampness such as meat, shrimp and crab as well as cold drinks and foods 5. In the simulation observational study based upon the above findings following review the related articles, no blister was shown on the acupoints icluding bilateral $BL_{13}$, $_{15}$ and $_{17}$ in every experimental group during 24hr observation following the acupoint applying treatment with pills made by modified and devised prescription. At 4 hr, the effectiveness of it reached a peak showing redness and mild tenderness and there is little difference between groups 3cm pills groups regardless of the way ginger was treated. abdominal distention and growling was found in all the volunteers during the treatment at CV 8. Strategic directions and road maps : Through successful fulfillment of the program preventing winter disease in the summer, Korean traditional medicine should be integrated into mainstream national health care services. Cultural access was thought to be as important as Scientific EBM approach. First of all, To evoke potential cultural homogeneity from campaigns and press advertisement was needed for promoting public awareness about preventing winter disease in the summer by enhancing immunity via acupoint applying treatment in the three dog days, and then indigenous name as Sambokcheop, protocol, Clinical Research Form for data collection of it should be developed and prepared. Once the first step was taken this summer, through a thorough data collection and scrutinized scientific evaluation, drawbacks should be compensted for and the efficacy and safety should be substantiated.