• Title/Summary/Keyword: Collaborative Analysis

Search Result 926, Processing Time 0.029 seconds

A Comparison Study of RNN, CNN, and GAN Models in Sequential Recommendation (순차적 추천에서의 RNN, CNN 및 GAN 모델 비교 연구)

  • Yoon, Ji Hyung;Chung, Jaewon;Jang, Beakcheol
    • Journal of Internet Computing and Services
    • /
    • v.23 no.4
    • /
    • pp.21-33
    • /
    • 2022
  • Recently, the recommender system has been widely used in various fields such as movies, music, online shopping, and social media, and in the meantime, the recommender model has been developed from correlation analysis through the Apriori model, which can be said to be the first-generation model in the recommender system field. In 2005, many models have been proposed, including deep learning-based models, which are receiving a lot of attention within the recommender model. The recommender model can be classified into a collaborative filtering method, a content-based method, and a hybrid method that uses these two methods integrally. However, these basic methods are gradually losing their status as methodologies in the field as they fail to adapt to internal and external changing factors such as the rapidly changing user-item interaction and the development of big data. On the other hand, the importance of deep learning methodologies in recommender systems is increasing because of its advantages such as nonlinear transformation, representation learning, sequence modeling, and flexibility. In this paper, among deep learning methodologies, RNN, CNN, and GAN-based models suitable for sequential modeling that can accurately and flexibly analyze user-item interactions are classified, compared, and analyzed.

The Analysis of the Effect of Understanding and Practices of Character-centered Instruction Model on Pre-service Science Teachers' Awareness of Character Education (인성 중심 교수 모형에 대한 이해와 실천이 예비 중등 과학교사의 인성 교육에 대한 인식에 미치는 영향 분석)

  • Park, Jihun;Kang, Eugene;Nam, Jeonghee
    • Journal of the Korean Chemical Society
    • /
    • v.65 no.4
    • /
    • pp.279-295
    • /
    • 2021
  • The purpose of this study was to investigate the effect of Character-centered instruction model on pre-service science teachers' awareness of both character education and character education in science education. First of all, pre-questionnaires about the sixteen pre-service science teachers' awareness of character education and character education in science education were asked. Through the lectures during a semester, they received an education about CoProC(Collaborative Problem-Solving for Character competence) model using Character-centered instruction model and character education. After the implementation, their changes of awareness were inspected through post-questionnaires. As a result of the study, it was revealed that general pre-service science teachers' pre-awareness of character education was mostly negative. The pre-service science teachers were more aware of character education in science classes than general character education. Even that, there seemed to be a greater tendency to think in connection with specific content and subject matter and character education rather than developing competencies due to the nature of the science subject itself. However, the experiences of the CoProC model changed their perception about character into a competent point of view, and thus influenced the change in their perception of character education. Therefore, education on character education methods for pre-service science teachers at teacher training institutions will increase their expertise in character education and help establish effective character education in school in the long term.

Job Analysis of Korean Medicine Nurses Using the Developing a Curriculum(DACUM) Process (DACUM기법을 이용한 한방간호사의 직무분석)

  • Jeong, Younhee;Jang, Mi Heui;Yun, Eun Kyoung;Jeong, Eun Sook;Park, Jun Hee
    • Journal of East-West Nursing Research
    • /
    • v.23 no.1
    • /
    • pp.63-74
    • /
    • 2017
  • Aims: This study aimed to analyze the tasks of Korean Medicine (KM) nurses. Methods: The definition and job description of KM nurses were developed through a "developing a curriculum" (DACUM) workshop. DACUM committee consisted of nine nurses from eleven Korean medicine hospitals, two DACUM facilitators and four DACUM coordinators. Twenty five nurses from nine Korean medicine hospitals validated job description established through the workshop. 235 KM nurses from 9 traditional Korean medicine hospitals participated in evaluating frequency, importance and difficulty of the duties and tasks. Questionnaires were sent to those nurses and 225 responses were included for final analysis due to missing data. The data were analyzed using descriptive statistics. Results: The jobs of a KM nurse were analyzed into 11 duties and 86 tasks on the DACUM chart. The 11 duties were KM nursing assessment, KM nursing intervention, fundamental nursing intervention, KM therapy management, support for KM therapy, KM nursing education, nursing administration, material management, environment management, professional development, and collaborative role between Korean medicine and Western medicine. Conclusion: We identified various roles of KM nurses and developed a DACUM chart based on their duties and tasks. Phased education programs for KM nurses should be developed by considering frequency, importance and difficulty. In addition, it is necessary to promote unique KM nursing interventions for expanding the roles of KM nurses in the future.

A Study on the Knowledge Formation Process of Wikipedia in Korea through Big Data Analysis (빅데이터 분석을 통해 본 한국 위키피디아의 지식형성 과정에 관한 연구)

  • Lee, Jungyeoun;Jeon, Suhyeon
    • Journal of the Korean Society for information Management
    • /
    • v.37 no.2
    • /
    • pp.171-195
    • /
    • 2020
  • This study analyzed the collaborative process in time series by dismantling the edit log big data of Wikipedia Korea, a representative online collaboration community, from early 2002 to 2019. Analysis elements were extracted from the document edit records, formatted in standardized XML, and analyzed using Python and R. The ways of editors' contribution, the characteristics of data contents, and the trend of document creation were explained by the analysis. An active contribution of a small set of editors and a loose participation of the majority were revealed. In addition, sociocultural characteristics that appear in online communities were also found in Wikipedia Korea. A new, diverse set of external resources is necessary to sustain the collective intelligence. An effort to settle new editors into the wikipedia community and an openness through circulation structure to avoid the exclusiveness of the management group are suggested.

Structural Equation Modeling of Self-Management in Patients with Hemodialysis (혈액투석환자의 자기관리 구조모형)

  • Cha, Jieun
    • Journal of Korean Academy of Nursing
    • /
    • v.47 no.1
    • /
    • pp.14-24
    • /
    • 2017
  • Purpose: The purpose of this study was to construct and test a hypothetical model of self-management in patients with hemodialysis based on the Self-Regulation Model and resource-coping perspective. Methods: Data were collected from 215 adults receiving hemodialysis in 17 local clinics and one tertiary hospital in 2016. The Hemodialysis Self-management Instrument, the Revised Illness Perception Questionnaire, Herth Hope Index and Multidimensional Scale of Perceived Social Support were used. The exogenous variable was social context; the endogenous variables were cognitive illness representation, hope, self-management behavior, and illness outcome. For data analysis, descriptive statistics, Pearson correlation analysis, factor analysis, and structural equation modeling were performed. Results: The hypothetical model with six paths showed a good fitness to the empirical data: GFI=.96, AGFI=.90, CFI=.95, RMSEA=.08, SRMR=.04. The factors that had an influence on self-management behavior were social context (${\beta}=.84$), hope and cognitive illness representation (${\beta}=.37$ and ${\beta}=.27$) explaining 92.4% of the variance. Self-management behavior mediated the relationship between psychosocial coping resources and illness outcome. Conclusion: This research specifies a more complete spectrum of the self-management process. It is important to recognize the array of clinical resources available to support patients' self-management. Healthcare providers can facilitate self-management through collaborative care and understanding the ideas and emotions that each patient has about the illness, and ultimately improve the health outcomes. This framework can be used to guide self-management intervention development and assure effective clinical assessment.

Trend Analysis of Reports on Oriental(Complementary) Medical Care in Major Newspapers in Korea (국내 주요 일간지의 한방(보완)의료 관련 기사의 추세 분석)

  • Cho Kyung-Sook;Park Jong-Ku;Kim Chun-Bae;Lee Sun-Dong;Choi Seo-Young
    • Journal of Society of Preventive Korean Medicine
    • /
    • v.4 no.1
    • /
    • pp.70-80
    • /
    • 2000
  • This study is conducted to evaluate the social concern of the related issues through trend analysis of reports on Oriental medical care in major domestic newspapers including Dong-a Ilbo, Hankook Ilbo, Chosunilbo, and JoongAng Ilbo. Materials of this study were collected from a total of 1,039 reports on Oriental medical care by internet search of each newspaper company's homepage from fan 1, 1993 to Dec 31, 1999. Two researchers analyzed the trend of report contents on Oriental medical care by publication year. The major results were as follows: The most frequent subject in these reports related to Oriental medical care was 'disease', appearing in 45.5% (473) of tile reports, followed by 'oriental health system (31.5%)' and "oriental medical facilities (16.5%)'. Also, topics on the collaborative efforts of Oriental and Western medical care were reported in 7.9% of the cases. According to a survey of the opinions held for the contents in these reports, 51.0% reports held neutral views while 48.2% and only 0.8% reports had favorable and negative views, respectively. In conclusion, the reports covering Oriental medical care in major domestic newspapers have increased in recent times and many held favorable views. Considering the widespread influence of mass-media, the government and health-related organizations must continuously monitor the opinions in daily newspapers, for the opinions are the influencing force of health-rotated behaviors and changes. In this light, these organizations should enforce the health policy on strategies for mutual development of Western and Oriental medicine in Korea.

  • PDF

Development and implementation of a project-based learning model using CMC and situated evaluation with message analysis (통신망을 활용한 프로젝트 학습 모형의 개발 및 적용과 메시지 분석을 이용한 상황적 평가)

  • Jun, Youngcook;Kim, Junghack;Park, Hongjune
    • The Journal of Korean Association of Computer Education
    • /
    • v.8 no.4
    • /
    • pp.57-69
    • /
    • 2005
  • In this study we try to design and develop a mixed model of project-based learning with internet. In order to support the developed model, we separately developed a web-based tool, called Project Learning BBS. The classroom teaching for advertisement-photo production with the model has been carried out during May-July in 2002 and March-July in 2003 respectively with 40 students each. The overall activities of group collaborative work done during the teaching periods have been formatively evaluated with classroom observation, interviews and students' portfolios that were related to the processes of photo planning, video shooting and editing. It has also investigated how the students involved the web-based group discussion activities. In short, data analysis indicated that the participants accepted the proposed project-based learning model for their learning events in a positive way in order to increase the utilization of CMC.

  • PDF

Assessment of a U Product purity from Pyroprocessing Spent EBR-II Fuel (EBR-II 사용후핵연료의 건식처리공정에 의한 우라늄의 순도 평가)

  • Lee, Jung-Won;Lee, Han-Soo;Kim, Eung-Ho;Lee, Jong-Hyeon;Vaden, D.;Westphal, B.;Simpson, M.F.
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
    • /
    • v.7 no.3
    • /
    • pp.167-174
    • /
    • 2009
  • A comprehensive analysis has been conducted on the purity of the uranium product generated from a pyroprocessing of EBR-II spent fuel. The analysis results were compared to the low-level waste criteria for both ROK and USA under a collaborative program between INL and KAERI. It is found that the US LLW definition does not include the activity from any U isotopes, but the Korean one does. The analysis results show that Pu-239 is the only alpha emitting isotope other than U isotopes that exceed the limit in the EBR-II U product. Pu contamination of the product seems to be drastically reduced in a preliminary test of the modified cathode process, and the further development of the proposed technology may be possible to meet the US LLW criteria.

  • PDF

Task Analysis of the Job Description of Gerontological Nurse Practitioners based on DACUM (DACUM 기법을 이용한 노인 전문 간호사의 직무 분석)

  • Kim, Keum-Soon;Park, Yeon-Hwan;Lim, Nan-Young
    • Journal of Korean Academy of Nursing
    • /
    • v.38 no.6
    • /
    • pp.853-865
    • /
    • 2008
  • Purpose: The aim of this study was to develop and to analyze the task of gerontological nurse practitioners (GNPs) in Korea. Methods: The definition of GNP and job description was developed based on developing a curriculum (DACUM) by 7 panels who have experienced in DACUM analysis and gerontological nursing. One hundred sixty nurses who were working at long term care facilities were participated. The questionnaire included frequency, importance, and difficulty of duties, tasks, and task elements. The data were collected in November 2006, analyzed by descriptive statistics. Results: The job description of GNPs in Korea revealed 5 duties, 23 tasks, and 86 task elements. On the all five duties, the highest duty in frequency and in importance was professional nursing care ($3.25{\pm}0.35$, $3.49{\pm}0.29$). But the highest duty in difficulty was research ($3.24{\pm}0.46$). 'Prevent health problem ($3.42{\pm}0.43$, $3.56{\pm}0.33$)', 'Teach other staffs ($2.83{\pm}0.77$, $3.39{\pm}0.43$)', 'Develop the evidence-based standards ($2.43{\pm}0.76$, $3.22{\pm}0.43$)', 'Develop the self ($2.81{\pm}0.65$, $3.26{\pm}0.42$)', and 'Participate the team activities' were the highest score in frequency and in criticality of tasks. 'Provide emotional support to older adults and families ($3.16{\pm}0.41$)', 'Counsel older adults and their families ($3.14{\pm}0.49$)', 'Do clinical research ($3.32{\pm}0.49$)', 'Quality insurance ($3.25{\pm}0.49$)', and 'Build collaborative system ($3.18{\pm}0.47$)' were perceived the most difficult tasks. Conclusion: The political efforts for the legislation of role and task of GNPs were needed.

A Study on the Change of Spatial Structures of Shared Space at Urban Campuses - The opposite concept of Gridlock upon the change to shared campuses - (도심 캠퍼스 공유공간의 공간 구조 변화에 대한 연구 - 그리드락의 반대 개념으로서의 공유 캠퍼스로의 변화에 대하여 -)

  • Kang, Eunki;Baek, Jin
    • Journal of the Architectural Institute of Korea Planning & Design
    • /
    • v.34 no.11
    • /
    • pp.145-156
    • /
    • 2018
  • Urban campus, one of the main urban facilities, is the representative place that is struggling with 'gridlock'. Due to privatization of space among different departments and space shortages, gridlock has been occurring as a result. The urban campus trying to solve this problem by changing the quality of space, especially the structure of the shared space, which is expected to be the solution to the grid lock problem. The main purpose of this study is to investigate the structural change in the university's shared space based on paradigm transition. The theoretical consideration is to analyze the spatial characteristics of university shared space that appear at different stages through a new perspective that compares the gridlock phenomenon and the shared paradigm. The framework of the analysis of the shared space, which has recently been restructured, is classified into the spatial characteristics of collaborative space, the creative space, and the common/complex space. In addition, these spatial characteristics are again analyzed through the division of legislative facility classification, management governance subject, area, building location and layout, exposure to the outside as well as the analysis of student and staff entry and exit, sharing structure of site and space, and the classification of program characteristics. The results are as follows: The restructured space is systemized so that the management governance of each space would be connected to each other to share information and space. Furthermore, the spatial boundary between colleges or between campus spaces are not only physically, but categorically clear. The restructured space has semi (or in-between)-spatial characteristics such as the intersection in inside and outside of the pedestrian's circulation and the mixture of programs. This study could serve as principal references in presenting the systematic analysis of directions of the shared spatial structure for the urban campus where new educational space is required due to the changes in the university system.