• Title/Summary/Keyword: recommending

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Research on Personalized Course Recommendation Algorithm Based on Att-CIN-DNN under Online Education Cloud Platform

  • Xiaoqiang Liu;Feng Hou
    • Journal of Information Processing Systems
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    • v.20 no.3
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    • pp.360-374
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    • 2024
  • A personalized course recommendation algorithm based on deep learning in an online education cloud platform is proposed to address the challenges associated with effective information extraction and insufficient feature extraction. First, the user potential preferences are obtained through the course summary, course review information, user course history, and other data. Second, by embedding, the word vector is turned into a low-dimensional and dense real-valued vector, which is then fed into the compressed interaction network-deep neural network model. Finally, considering that learners and different interactive courses play different roles in the final recommendation and prediction results, an attention mechanism is introduced. The accuracy, recall rate, and F1 value of the proposed method are 0.851, 0.856, and 0.853, respectively, when the length of the recommendation list K is 35. Consequently, the proposed strategy outperforms the comparison model in terms of recommending customized course resources.

The Necessity of Vaccine Education for Pharmacists and Development of a Vaccine Leaflet for Patient Counseling (약사의 백신에 대한 교육의 필요성 및 환자 상담을 위한 소책자 개발)

  • Kim, Mi-Kyung;Kim, Hyun-Ah;Cho, Eun;Lee, Ok-Sang;Lim, Sung-Cil
    • Korean Journal of Clinical Pharmacy
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    • v.21 no.3
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    • pp.280-291
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    • 2011
  • Vaccines are products for immunization which can provoke antibodies by eliciting immune reponses without causing disease and have played an important role in preventing fatal and contagious diseases as well as H1N1 influenza. They are classified by two following categories; lived attenuated vaccine and killed vaccine and currently commonly using vaccines are BCG, diphtheria, tetanus, mumps, measles, rubella, polio, Haemophilus influenza type b, hepatitis B, influenza etc. All vaccines must be used correctly to reach optimal therapeutic goals and also informed well to patients to decrease potential problems. In order to do, pharmacists must have good knowledge of vaccines. The purpose of this study is to evaluate the necessity of vaccine education for pharmacists and develop a vaccine leaflet for patient counseling. We have performed a survey with questionnaire for a total of 176 pharmacists and nurses(hospital pharmacists, n=65; community pharmacists, n=50; hospital nurses, n=61) from January 27th to March 12th, 2010. The questionnaire includes items about vaccine education and counseling and 12 quizzes to evaluate responders' knowledge of vaccines. We used the SPSS(Version 12. for windows) program to analyze the data. In results, 94.9% of all responders said they had not been educated on vaccines. And only 1.1% of all responders said they know about vaccines enough to counsel patients. Pharmacists who have an experience recommending vaccines to other people are 21.7%. On the other hand, nurses who have an experience recommending vaccines to other people are 55.7%(p=0.000). The mean number of correct answers at the 12 quizzes are followings; hospital pharmacist, 8.1; community pharmacist, 6.1, hospital nurses, 6.2(p=0.000). A vaccine leaflet for patient counseling is developed with several references. In conclusion, due to no opportunity of vaccine education, pharmacists have no confidence to counsel patients and lack of knowledge of vaccine. But importance of vaccine's role is increasing, pharmacists should counsel patients in vaccination. So they need vaccine education and a vaccine leaflet will be helpful for their counseling.

A Recommending System for Care Plan(Res-CP) in Long-Term Care Insurance System (데이터마이닝 기법을 활용한 노인장기요양급여 권고모형 개발)

  • Han, Eun-Jeong;Lee, Jung-Suk;Kim, Dong-Geon;Ka, Im-Ok
    • The Korean Journal of Applied Statistics
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    • v.22 no.6
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    • pp.1229-1237
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    • 2009
  • In the long-term care insurance(LTCI) system, the question of how to provide the most appropriate care has become a major issue for the elderly, their family, and for policy makers. To help beneficiaries use LTC services appropriately to their needs of care, National Health Insurance Corporation(NHIC) provide them with the individualized care plan, named the Long-term Care User Guide. It includes recommendations for beneficiaries' most appropriate type of care. The purpose of this study is to develop a recommending system for care plan(Res-CP) in LTCI system. We used data set for Long-term Care User Guide in the 3rd long-term care insurance pilot programs. To develop the model, we tested four models, including a decision-tree model in data-mining, a logistic regression model, and a boosting and boosting techniques in an ensemble model. A decision-tree model was selected to describe the Res-CP, because it may be easy to explain the algorithm of Res-CP to the working groups. Res-CP might be useful in an evidence-based care planning in LTCI system and may contribute to support use of LTC services efficiently.

The Effectiveness of Apps Recommending Best Restaurant through Location-based Knowledge Information: Privacy Calculus Perspective (위치기반 지식정보를 활용한 맛집 추천 앱의 효과: 프라이버시 계산을 중심으로)

  • Jiang, Taypun;Lim, Hyun A;Choi, Jaewon
    • The Journal of Society for e-Business Studies
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    • v.22 no.1
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    • pp.89-106
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    • 2017
  • In advanced mobile devices environment, the market share of mobile application has been increased. Among various mobile services, Location-based Service (LBS) is an important feature to increase user motivation related to purchase intention on mobile. However, individual privacy has also increased as an important problem for invasion of privacy and information leakage while too many LBS based applications (App) rapidly launched in the App market. In this study, we focused on perceived values of LBS App users who use Apps related to recommending best restaurants in China and South Korea. The purpose of this study is to identify important factors for perceived value when users provide personal information for LBS service provider. The result of this study is follows: perceived value can increase while LBS customers can more control self-information and information useability. Also information ability of users affected perceived values for LBS Apps. Also users' app user ability and perceived value were effects on privacy revenue. In addtion, perceived weakness of users and perceived value increased privacy threat.

Semantic Fuzzy Implication Operator for Semantic Implication Relationship of Knowledge Descriptions in Question Answering System (질의 응답 시스템에서 지식 설명의 의미적 포함 관계를 고려한 의미적 퍼지 함의 연산자)

  • Ahn, Chan-Min;Lee, Ju-Hong;Choi, Bum-Ghi;Park, Sun
    • The Journal of the Korea Contents Association
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    • v.11 no.3
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    • pp.73-83
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    • 2011
  • The question answering system shows the answers that are input by other users for user's question. In spite of many researches to try to enhance the satisfaction level of answers for user question, there is a essential limitation. So, the question answering system provides users with the method of recommendation of another questions that can satisfy user's intention with high probability as an auxiliary function. The method using the fuzzy relational product operator was proposed for recommending the questions that can includes largely the contents of the user's question. The fuzzy relational product operator is composed of the Kleene-Dienes operator to measure the implication degree by contents between two questions. However, Kleene-Dienes operator is not fit to be the right operator for finding a question answers pair that semantically includes a user question, because it was not designed for the purpose of finding the degree of semantic inclusion between two documents. We present a novel fuzzy implication operator that is designed for the purpose of finding question answer pairs by considering implication relation. The new operator calculates a degree that the question semantically implies the other question. We show the experimental results that the probability that users are satisfied with the searched results is increased when the proposed operator is used for recommending of question answering system.

Selection of Low Toxic Pesticides and Residual Toxicity to Cotesia glomerata (배추나비고치벌 (Cotesia glomerata)에 대한 저독성 약제 및 잔류독성)

  • Choi, Byeong-Ryeol;Lee, Si-Woo;Park, Hyung-Man
    • Korean journal of applied entomology
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    • v.46 no.2
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    • pp.251-259
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    • 2007
  • For the development of integrated pest management system by harmonizing biological and chemical control, some experiments wee carried out to select low toxic pesticides against natural enemies. and their residual toxicity were evaluated. Leaf dipping method, body dipping method, and diet treatment method were set up for the toxicity evaluation against Cotesia glomerata adults. We had tested 46 different pesticides (31 insecticides, 11 fungicides, 4 herbicides) at recommending concentration commonly used to control diamond back moth, disease and up-land weeds in chinese cabbage field. Twenty three insecticides, eleven fungicides, and four herbicides were shown to be low toxic to C. glomerata adults in the treatment of body dipping. After insecticide spraying at recommending dose on the chinese cabbage, we examined residual effect of insecticides by introducing natural enemies on different days. Safety interval for the introduction of C. glomerata adults was established according to the residual toxicity of pesticides. Safe insecticides for the introduction of C. glomerata adults at one day after treatment (DAT) were thiacloprid, acephate, chlorfenapyr, clothianidin and at 3 DAT were imidacloprid, deltamethrin, thiamethoxam, dimethylvinphos, emamectin benzoate.

Sprout Characteristics of Improved and Indigenous Soybeans in Korea (한국 재래 나물콩 품종 및 계통의 콩나물 특성)

  • Hwang, Young-Hyun;Lee, Jeong-Dong;Cho, Ho-Young;Kwon, Taek-Hwa;Jeong, Yean-Shin
    • Current Research on Agriculture and Life Sciences
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    • v.20
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    • pp.99-105
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    • 2002
  • To develop good soybean varieties for sprouts. 285 indigenous lines and 16 recommending varieties were evaluated by the sprout and agronomic characteristics. The range of whole length, hypocotyl length, root length, and yield rate of sprouts was 9.5~23.0cm, 5.9~15.1cm, 3.2~9.2cm, and 121~695%, respectively. Yield rate of sprouts was the highest, 409%, in the lines of mixed seed coat color. At the same time, it was reversely proportional to seed weight : the smaller the seed weight, the higher the yield rate as in all other reports. The number of roots was significantly fewer in the lines of the black and the green seed coat color than others. Based on whole length, rate of root length, and yield rate of sprouts, many indigenous lines were evaluated much better than recommending varieties. In the hypocotyl color of sprouts, the brightness was higher in improved variety than indigenous lines but vice versa in redness and yellowness in general.

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A study on the teacher's perception of personality area in the in-depth interview process of the selection of gifted children (영재 선발의 심층면접에서 인성에 대한 현장 교사들의 인식 분석)

  • Jang, KyeongHye;Park, Changun
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.9 no.5
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    • pp.281-290
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    • 2019
  • The study aims to analyze teachers' perception of the "personality" area, which can be subjective in the in-depth interview process of selecting gifted children and is easily shunned due to its weak immediate effect. To this end, First, when asked about their difficulties as gifted teachers, many of them answered "professionalism and workload" and cited personality as the most important area to address in-depth interviews in selecting gifted students. It also recognized that personality interviews are necessary for the most basic virtues of education and social contribution, and cited cooperation, consideration, and concession as the sub-components to be dealt with in the personality interview. It was necessary to check whether each student's capabilities were evaluated in a variety of ways in an in-depth interview of the teacher's observing and recommending system. And it needed to be supplemented by in-depth observations such as the development of a valid question, camp or debate in the evaluation of the personality area. In order to reflect the needs of the education field, it will be necessary to supplement the personality interview in the gifted children's selection. And there is also a need to continue to study how to guide the personality education of already selected gifted children.

Attitudes of Pregnant women s husbands to Breast Feeding (임부 남편의 모유수유에 대한 태도 유형 분석)

  • 정혜경;김경희
    • Journal of Korean Academy of Nursing
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    • v.28 no.2
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    • pp.392-402
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    • 1998
  • By using Q-methodology, this study examines the attitudes of pregnant womens' husbands toward breastfeeding. Also, the research provides basic data necessary to develop a strategy for recommending breastfeeding. A total of 112 items for the Q-population were collected from related literature and interviews with the general public, specialists, pregnant women and their husbands. Finally, 38 statements were selected. Twenty one husbands of pregnant women classified these statements on each card on a 1 to 9 point scale(forced normal distribution) and wrote the reasons for both the most supported and the most resisted statements. The materials collected were analyzed by using pc QUANL program. The analysis drew down following fact that even though the attitudes of the husbands of pregnant were very similar, they could be classified to three types according to the motivation and recognition the degree of choosing breastfeeding. Type 1 is the mother's duty supporter, who insists that breastfeeding is completely natural and the proper duty of the mother. Type 2 is the emotional value supporter, who thinks that breastfeeding emotionally affects both the baby and the mother in a positive way. Type 3 is the conditional choice supporter, who chooses the most proper suckling way of feeding according to given conditions.

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Harvesting Productivity and Cost of Clearcut and Partial Cut in Interior British Columbia, Canada

  • Renzie, Chad;Han, Han-Sup
    • Journal of Forest and Environmental Science
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    • v.24 no.1
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    • pp.1-14
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    • 2008
  • Clearcutting has been the dominant harvesting method in British Columbia (representing 95% of the total area harvested annually). However forest managers are increasingly recommending the use of alternative silvicultural systems and harvest methods, including various types of partial cutting, to meet ecological and social objectives. In this study we compared harvesting productivity and harvesting costs between treatments through detailed and shift level time studies in 300-350 year-old Interior Cedar-Hemlock stands in British Columbia, Canada. Recommendations for improving operational planning/layout and the implementation of clearcut and partial cutting silvicultural systems were made. Harvesting costs varied in the ground-based clearcut treatments from $10.95/$m^3$ - $15.96/$m^3$ and $16.09/$m^3$ - $16.93/$m^3$ in the group selection treatments. The ground-based group retention treatment had a cost of $13.39/$m^3$, while the cable clearcut had a cost of $15.70/$m^3$. An understanding of the traditional and alternative wood products that could be derived from the harvested timber was imperative to increasing the amount of merchantable volume and reducing the corresponding harvesting costs. Stand damage was greatest in the group selection treatments; however, mechanized felling showed an increase in stand damage over manual felling while grapple skidding showed a decrease in skidding damage compared to line skidding.

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