• Title/Summary/Keyword: Application domains

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A Web-Based Domain Ontology Construction Modelling and Application in the Wetland Domain

  • Xing, Jun;Han, Min
    • Journal of Korea Multimedia Society
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    • v.10 no.6
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    • pp.754-759
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    • 2007
  • Methodology of ontology building based on Web resources will not only reduce significantly the ontology construction period, but also enhance the quality of the ontology. Remarkable progress has been achieved in this regard, but they encounter similar difficulties, such as the Web data extraction and knowledge acquisition. This paper researches on the characteristics of ontology construction data, including dynamics, largeness, variation and openness and other features, and the fundamental issue of ontology construction - formalized representation method. Then, the key technologies used in and the difficulties with ontology construction are summarized. A software Model-OntoMaker (Ontology Maker) is designed. The model is innovative in two regards: (1) the improvement of generality: the meta learning machine will dynamically pick appropriate ontology learning methodologies for data of different domains, thus optimizing the results; (2) the merged processing of (semi-) structural and non-structural data. In addition, as known to all wetland researchers, information sharing is vital to wetland exploitation and protection, while wetland ontology construction is the basic task for information sharing. OntoMaker constructs the wetland ontologies, and the model in this work can also be referred to other environmental domains.

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A Development of Career Ladder Program for Nurse in a Hospital (간호사 임상 경력 관리 프로그램 개발)

  • Park, Sung-Hee;Park, Sung-Ae;Park, Kwang-Ok
    • Journal of Korean Academy of Nursing Administration
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    • v.12 no.4
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    • pp.624-632
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    • 2006
  • Purpose: This study is performed to develop the contents of career ladder program for nurses in a hospital. And this study present the appropriate strategies of career ladder program using the clinical ladder in clinical nursing field in Korea. Methods: The method of the study were modified Delphi technique with professional group for identifying nursing domains, steps of career ladder system and managerial strategy. Result: We identified tool of the nursing domains; nursing patient, quality approvement and research, development of human resources, leadership and qualifications of promotion and contents of ladder of each level. We created expected role consisted of clinical ladder and classified 4 steps; novice, competent, proficient, expert. And finally managerial principles and application process are presented in this study. Conclusions: Development of career ladder program at a hospital was not need many time consumption but very important tool of nursing profession. And it is needed to validate and refine the tool developed continuously.

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An Analysis of Correlations Between Portfolio Assessment and Other Assessment Methods in Elementary School Science (초등 과학 포트폴리오 평가와 다른 과학 평가 방법 간의 상관관계 분석)

  • Shin Hyun-Ok;Lee Ki-Young;Kim Chan-Jong
    • Journal of Korean Elementary Science Education
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    • v.24 no.3
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    • pp.301-309
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    • 2005
  • The purpose of this study was to investigate the measuring range of portfolio assessment on students' abilities, using correlation coefficients of portfolio assessment with four other assessment methods. A portfolio system was developed based on low units of elementary fourth grade science, and applied to three fourth-grade science classes in Daejeon Metropolitan area and Gyunggi-do. Four different assessment methods, multiple-choice (short answer type), essay-type item, mind-mapping and laboratory assessment were also administered and scored by two elementary teachers attending graduate school. Correlation coefficients between portfolio assessment and four assessment methods were calculated with SPSS. Portfolio assessment showed moderate correlation with multiplechoice (short answer), essay-type, and mind-mapping, and low correlation with laboratory assessment. Portfolio assessment showed high correlation with multiple-choice assessment in 'understanding' and 'application' domains, but showed low correlation in 'recall' and 'inquiry' domains. In conclusion, portfolio assessment could measure various abilities measured by other assessment methods.

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Development and Application of Nursing Service Quality Indicators in Nursing Homes (노인요양시설의 간호서비스 질 평가 지표 개발 및 적용)

  • Chung, Ja-Ne
    • Journal of Korean Academy of Nursing
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    • v.37 no.3
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    • pp.401-413
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    • 2007
  • Purpose: This study was designed to develop Nursing Service Quality Indicators(NSQIs) in nursing homes that would lead to an appropriate evaluation and improvement of nursing service quality. Methods: The preliminary NSQIs were developed through literature reviews and analysis of existing quality indicators. A content validity testing was done twice by using a panel of experts who were from academia and the clinical areas. The final NSQIs were confirmed and applied in three nursing homes to test feasibility. Results: The preliminary NSQIs had 4 domains and 31 indicators. Two content validity testings were performed. The indicators scoring over.80 CVI for each testing were selected and modified by experts' opinions. The final NSQIs consisted of 7 domains and 33 indicators. They were applied in three nursing homes and it was revealed that all the indicators were applicable. Conclusion: In this study, it is shown that this new 'Nursing Service Quality Indicators in Nursing Homes' is suitable for a holistic evaluation of nursing service quality of elderly patients in nursing homes. This NSQIs will be able to provide a basis for establishing nursing care standards and improving the nursing care quality in nursing homes.

An Algorithm of Automatic Mesh Generation by Recursive Subdivisions (순환적 분할에 의한 유한 요소망 자동 생성 알고리즘)

  • 이재영
    • Computational Structural Engineering
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    • v.9 no.3
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    • pp.145-155
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    • 1996
  • This paper suggests a new algorithm of automatic mesh generation over planar domains with arbitrarily shaped boundaries and control curves. The algorithm is based on the method of recursively subdividing the domain by the path connecting, with minimum penalty value, two points on the super-loop, which consists of the boundaries and the control curves, The algorithm is not subject to any limitation on the shape of the domain, and its process can be fully automated. Therefore, this algorithm can be implemented into computer programs which require minimal user intervention while generating finite element meshes over complicated domains. This algorithm can also be easily extended for application to the generation of meshes over curved surfaces, or to the adaptive mesh generation.

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Mesh Reconstruction Using Redistibution of Nodes in Sub-domains and Its Application to the Analyses of Metal Forming Problems (영역별 절점재구성을 통한 격자재구성 및 소성가공해석)

  • Hong, Jin-Tae;Yang, Dong-Yol
    • Korean Journal of Computational Design and Engineering
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    • v.12 no.4
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    • pp.255-262
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    • 2007
  • In the finite element analysis of forming process, objects are described with a finite number of elements and nodes and the approximated solutions can be obtained by the variational principle. One of the shortcomings of a finite element analysis is that the structure of mesh has become inefficient and unusable because discretization error increases as deformation proceeds due to severe distortion of elements. If the state of current mesh satisfies a certain remeshing criterion, analysis is stopped instantly and resumed with a reconstructed mesh. In the study, a new remeshing algorithm using tetrahedral elements has been developed, which is adapted to the desired mesh density. In order to reduce the discretization error, desired mesh sizes in each lesion of the workpiece are calculated using the Zinkiewicz and Zhu's a-posteriori error estimation scheme. The pre-constructed mesh is constructed based on the modified point insertion technique which is adapted to the density function. The object domain is divided into uniformly-sized sub-domains and the numbers of nodes in each sub-domain are redistributed, respectively. After finishing the redistribution process of nodes, a tetrahedral mesh is reconstructed with the redistributed nodes, which is adapted to the density map and resulting in good mesh quality. A goodness and adaptability of the constructed mesh is verified with a testing measure. The proposed remeshing technique is applied to the finite element analyses of forging processes.

Application Effects of STS Module Concerning Food Waste (음식물 쓰레기에 관한 STS 모듈의 적용 효과)

  • Lee, Nae-Hwan;Cha, Hee-Young;Kim, Sung-Ha
    • Hwankyungkyoyuk
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    • v.18 no.1 s.26
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    • pp.44-54
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    • 2005
  • This study is intended to examine an effectiveness of STS module concerning food waste, 'Even if food waste is the money, would you throw it away', in the areas of affective domains related to science and attitudes towards environmental problems. For this study, one group of 142 seventh graders attending 'L' middle school in Iksan city, Jeonrabukdo received 8 class hours with this module. Their affective domains related to science and attitudes towards environmental problems were measured by pre- and post-test design in a single group. In addition, their views on STS instruction was also analyzed. Results are as follows. Students in the transition period who had been taught with this module showed that they had a statistically significant effectiveness in interests related to science, scientific attitudes and execution towards environmental problems(p<.05). Students taught with this module had a positive views on the STS instructional methods or contents. It was also shown that their recognition or behavior towards environmental problems have been changed positively.

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Sentiment Analysis of User-Generated Content on Drug Review Websites

  • Na, Jin-Cheon;Kyaing, Wai Yan Min
    • Journal of Information Science Theory and Practice
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    • v.3 no.1
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    • pp.6-23
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    • 2015
  • This study develops an effective method for sentiment analysis of user-generated content on drug review websites, which has not been investigated extensively compared to other general domains, such as product reviews. A clause-level sentiment analysis algorithm is developed since each sentence can contain multiple clauses discussing multiple aspects of a drug. The method adopts a pure linguistic approach of computing the sentiment orientation (positive, negative, or neutral) of a clause from the prior sentiment scores assigned to words, taking into consideration the grammatical relations and semantic annotation (such as disorder terms) of words in the clause. Experiment results with 2,700 clauses show the effectiveness of the proposed approach, and it performed significantly better than the baseline approaches using a machine learning approach. Various challenging issues were identified and discussed through error analysis. The application of the proposed sentiment analysis approach will be useful not only for patients, but also for drug makers and clinicians to obtain valuable summaries of public opinion. Since sentiment analysis is domain specific, domain knowledge in drug reviews is incorporated into the sentiment analysis algorithm to provide more accurate analysis. In particular, MetaMap is used to map various health and medical terms (such as disease and drug names) to semantic types in the Unified Medical Language System (UMLS) Semantic Network.

A Finite Element Based PML Method for Time-domain Electromagnetic Wave Propagation Analysis (시간영역 전자기파 전파해석을 위한 유한요소기반 PML 기법)

  • Yi, Sang-Ri;Kim, Boyoung;Kang, Jun Won
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.28 no.2
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    • pp.123-130
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    • 2015
  • This paper presents a new formulation for transient simulations of microwave propagation in heterogeneous unbounded domains. In particular, perfectly-matched-layers(PMLs) are introduced to allow for wave absorption at artificial boundaries used to truncate the infinite extent of the physical domains. The development of the electromagnetic PML targets the application to engineering mechanics problems such as structural health monitoring and inverse medium problems. To formulate the PML for plane electromagnetic waves, a complex coordinate transformation is introduced to Maxwell's equations in the frequency-domain. Then the PML-endowed partial differential equations(PDEs) for transient electromagnetic waves are recovered by the application of the inverse Fourier transform to the frequency-domain equations. A mixed finite element method is employed to solve the time-domain PDEs for electric and magnetic fields in the PML-truncated domain. Numerical results are presented for plane microwaves propagating through concrete structures, and the accuracy of solutions is investigated by a series of error analyses.

An Analysis of Measurement Equivalence in a Teaching Aptitude and Personality Test for Pre-service Mathematics Teachers between a Graduate School of Education and a College of Education (교육대학원과 사범대학 예비수학교사의 교직 적성·인성 검사에 대한 측정의 동등성 분석)

  • Kim, Sungyeun
    • The Mathematical Education
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    • v.57 no.2
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    • pp.179-196
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    • 2018
  • The purpose of this study was to investigate the measurement equivalence and to suggest application ways in teaching aptitude and personality test results for pre-service mathematics teachers between a graduate school of education and a college of education. This study analyzed the scores of the teaching aptitude and personality test of 36 pre-service mathematics teachers enrolled in a graduate school of education and 111 pre-service mathematics teachers in a college of education by performing a multivariate generalizability analysis. The main results were as follows. First, graduate's pre-service mathematics teachers had a higher level of teaching aptitude and personality than that of college's pre-service mathematics teachers based on the total scores. In addition, graduate's pre-service mathematics teachers had higher levels of teaching aptitude and personality than those of college's pre-service mathematics teachers except for a creativity application domain based on the sub-domain scores. Second, cognitive domains were measured more precisely but affective domains were measured less precisely for graduate's pre-service mathematics teachers than for college's pre-service mathematics teachers. Third, regardless of school levels, Cronbach's ${\alpha}$ values, which might be overestimated by applying the classical test theory, were higher than dependability coefficients. Fourth, this study showed a somewhat negative result in ensuring the measurement equivalence for a problem solving exploration domain. However, regardless of school levels, this study indicated that the overall measurement was generally reliable on composite scores. Based on these results, it was confirmed that multivariate generalizability methodologies' approach can be useful for exploring the measurement equivalence issues. Finally, this study suggests how to utilize the results of the test, how to apply a multivariate generalizability analysis for detecting the measurement equivalence, and how to develop future research based on limitations.