• Title/Summary/Keyword: Comprehensive model for identification

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A Comprehensive Model for Identification of Underachieved Gifted Children in Elementary Schools (복합판별 과정에 의한 초등학교에서의 미성취 영재 판별)

  • Pahk, So-Young;Lee, Jin-Hee
    • Journal of Gifted/Talented Education
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    • v.17 no.2
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    • pp.251-279
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    • 2007
  • The purpose of this study was to develop a comprehensive model to identify underachieved gifted children in elementary schools by utilizing multiple methods. From March 1st, 2006 through September 30th, 2006, we developed and applied a 6-step comprehensive identification model for underachieved gifted children by examining 1980 children attending S elementary school located in Daegu Metropolitan City, starting from the first step of teacher nomination to the last step of committee's final decision. As a result, 4 students were identified as underachieved gifted children. For comprehensive and appropriate identification, we adopted, adjusted, or developed several standardized tests, teacher nomination form, parental questionnaire, self-report checklist, and school achievement tests, which were fine-tuned in the application process of this identification model. Based on this study, we suggest that a comprehensive identification model for underachieved gifted children in public elementary schools consist of 6 steps: a) teacher nomination, b) simplified standardized testing, c) student's self-report, d) multiple standardized tests, e) qualitative analysis, and f) a committee decision for the final identification.

An Improved Multilevel Fuzzy Comprehensive Evaluation to Analyse on Engineering Project Risk

  • LI, Xin;LI, Mufeng;HAN, Xia
    • The Journal of Economics, Marketing and Management
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    • v.10 no.5
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    • pp.1-6
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    • 2022
  • Purpose: To overcome the question that depends too much on expert's subjective judgment in traditional risk identification, this paper structure the multilevel generalized fuzzy comprehensive evaluation mathematics model of the risk identification of project, to research the risk identification of the project. Research design, data and methodology: This paper constructs the multilevel generalized fuzzy comprehensive evaluation mathematics model. Through iterative algorithm of AHP analysis, make sure the important degree of the sub project in risk analysis, then combine expert's subjective judgment with objective quantitative analysis, and distinguish the risk through identification models. Meanwhile, the concrete method of multilevel generalized fuzzy comprehensive evaluation is probed. Using the index weights to analyse project risks is discussed in detail. Results: The improved fuzzy comprehensive evaluation algorithm is proposed in the paper, at first the method of fuzzy sets core is used to optimize the fuzzy relation matrix. It improves the capability of the algorithm. Then, the method of entropy weight is used to establish weight vectors. This makes the computation process fair and open. And thereby, the uncertainty of the evaluation result brought by the subjectivity can be avoided effectively and the evaluation result becomes more objective and more reasonable. Conclusions: In this paper, we use an improved fuzzy comprehensive evaluation method to evaluate a railroad engineering project risk. It can give a more reliable result for a reference of decision making.

An Improved Identification Method for Joint Parameters in Structures with Imcomplete Modal Parameters (불완전 모우드 변수를 이용한 구조물 결합부 변수 규명 방법의 개선)

  • 홍성욱
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 1998.04a
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    • pp.244-249
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    • 1998
  • The present paper improves the direct identification scheme based upon the equation error formulation with incomplete modal data. First, an indirect estimation technique is considered for estimating unmeasured elements of latent vectors by the combined use of a model and measured incomplete eigen vectors. It is used for estimating the other elements of eigen vectors, which are essential for identification but not available. Next an index is introduced here to indicate the quality of estimation with respect to the mode and the measured positions. A sensitivity formula for eigenvalues with respect to the unknown joint coefficient is also derived to select the modes appropriate for identification. An identification strategy is suggested to meet with practical problems with the help of the index and sensitivity formula. The index and the sensitivity are proved to be useful for selecting measurement positions and modes appropriate for identification A comprehensive simulation study is performed to test the proposed method.

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Application Studies on Structural Modal Identification Toolsuite for Seismic Response of Shear Frame Structure (SMIT를 활용한 지진하중을 받는 전단 구조물의 응답모드 특성에 관한 연구)

  • Chang, Minwoo
    • Journal of the Earthquake Engineering Society of Korea
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    • v.22 no.3
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    • pp.201-210
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    • 2018
  • The improvement in computing systems and sensor technologies devotes to conduct data-driven structural health monitoring algorithms for existing civil infrastructures. Despite of the development of techniques, the uncertainty oriented from the measurement results in the discrepancy to the actual structural parameters and let engineers or decision makers hesitate to adopt such techniques. Many studies have shown that the modal identification results can be affected by the uncertainties due to the applied methods and the types of loading. This paper aims to compare the performance of modal identification methods using Structural Modal Identification Toolsuite (SMIT) which has been developed to facilitate multiple identification methods with a user-friendly designed platform. The data fed into SMIT processes three stages for the comprehensive identification including preprocessing, eigenvalue estimation, and post-processing. The seismic and white noise response for shear frame model was obtained from numerical simulation. The identified modal parameters is compared to the actual modal parameters. In order to improve the quality of coherence in identified modal parameters, several hurdles including modal phase collinearity and extended modal amplitude coherence were introduced. Numerical simulation conducted on the 5 dof shear frame model were used to validate the effectiveness of using these parameters.

A Hybrid Modeling Architecture; Self-organizing Neuro-fuzzy Networks

  • Park, Byoungjun;Sungkwun Oh
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.102.1-102
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    • 2002
  • In this paper, we propose Self-organizing neurofuzzy networks(SONFN) and discuss their comprehensive design methodology. The proposed SONFN is generated from the mutually combined structure of both neurofuzzy networks (NFN) and polynomial neural networks(PNN) for model identification of complex and nonlinear systems. NFN contributes to the formation of the premise part of the SONFN. The consequence part of the SONFN is designed using PNN. The parameters of the membership functions, learning rates and momentum coefficients are adjusted with the use of genetic optimization. We discuss two kinds of SONFN architectures and propose a comprehensive learning algorithm. It is shown that this network...

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A Study on the Establishment of the Comprehensive Academic Contents Linking System: Focusing on KISTI (학술 콘텐츠 종합링킹체제 구축에 관한 연구 - KISTI를 중심으로 -)

  • Kim, Juseop;Jeon, Yerin;Kim, Suntae
    • Journal of the Korean Society for Library and Information Science
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    • v.55 no.1
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    • pp.493-519
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    • 2021
  • The purpose of this study is to propose a plan to implement the comprehensive linking system centered on identifiers in order to provide seamless academic information services to researchers. To achieve this goal, interviews were conducted with 17 researchers from five centers and one secretariat belonging to KISTI. The contents of the interview are about the establishment and management status of the identifier of the academic information service DB. As a result of the interview, it was found that the identification rate for identifiers such as KOI was high in the case of domestic articles DB, but the identification rate for global identifiers such as ORCID was low in the case of foreign articles DB except for DOI. To solve this problem, this study proposes the council for joint use of a comprehensive linking system to build the comprehensive linking system model centered on identifiers. The joint use council will be organized around domestic academic information distribution institutions, and the council is expected to discover and implement new services through ID linkage by collecting foreign identifiers.

Investigation of modal identification and modal identifiability of a cable-stayed bridge with Bayesian framework

  • Kuok, Sin-Chi;Yuen, Ka-Veng
    • Smart Structures and Systems
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    • v.17 no.3
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    • pp.445-470
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    • 2016
  • In this study, the Bayesian probabilistic framework is investigated for modal identification and modal identifiability based on the field measurements provided in the structural health monitoring benchmark problem of an instrumented cable-stayed bridge named Ting Kau Bridge (TKB). The comprehensive structural health monitoring system on the cable-stayed TKB has been operated for more than ten years and it is recognized as one of the best test-beds with readily available field measurements. The benchmark problem of the cable-stayed bridge is established to stimulate investigations on modal identifiability and the present paper addresses this benchmark problem from the Bayesian prospective. In contrast to deterministic approaches, an appealing feature of the Bayesian approach is that not only the optimal values of the modal parameters can be obtained but also the associated estimation uncertainty can be quantified in the form of probability distribution. The uncertainty quantification provides necessary information to evaluate the reliability of parametric identification results as well as modal identifiability. Herein, the Bayesian spectral density approach is conducted for output-only modal identification and the Bayesian model class selection approach is used to evaluate the significance of different modes in modal identification. Detailed analysis on the modal identification and modal identifiability based on the measurements of the bridge will be presented. Moreover, the advantages and potentials of Bayesian probabilistic framework on structural health monitoring will be discussed.

DNA barcoding of fish diversity from Batanghari River, Jambi, Indonesia

  • Huria Marnis;Khairul Syahputra;Jadmiko Darmawan;Dwi Febrianti;Evi Tahapari;Sekar Larashati;Bambang Iswanto;Erma Primanita Hayuningtyas Primanita;Mochamad Syaifudin;Arsad Tirta Subangkit
    • Fisheries and Aquatic Sciences
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    • v.27 no.2
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    • pp.87-99
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    • 2024
  • Global climate change, followed by an increase in anthropogenic activities in aquatic ecosystems, and species invasions, has resulted in a decline in aquatic organism biodiversity. The Batanghari River, Sumatra's longest river, is polluted by mercury-containing illegal gold mining waste (PETI), industrial pollution, and domestic waste. Several studies have provided evidence suggesting a decline in fish biodiversity within the Batanghari River. However, a comprehensive evaluation of the present status of biodiversity in this river is currently lacking. The species under investigation were identified through various molecular-based identification methods, as well as morphological identification, which involved the use of neighbor-joining (NJ) trees. All collected specimens were initially identified using morphological techniques and subsequently confirmed with molecular barcoding analysis. Morphological and DNA barcoding identification categorized all specimens (1,692) into 36 species, 30 genera and 16 families, representing five orders. A total of 36 DNA barcodes were generated from 30 genera using a 650-bp-long fragment of the mitochondrial cytochrome oxidase subunit I (COI) gene. Based on the Kimura two-parameter model (K2P), The minimum and maximum genetic divergences based on K2P distance were 0.003 and 0.331, respectively, and the average genetic divergence within genera, families, and orders was 0.05, 0.12, 0.16 respectively. In addition, the average interspecific distance was approximately 2.17 times higher than the mean intraspecific distance. Our results showed that the COI barcode enabled accurate fish species identification in the Batanghari River. Furthermore, the present work will establish a comprehensive DNA barcode library for freshwater fishes along Batanghari River and be significantly useful in future efforts to monitor, conserve, and manage fisheries in Indonesia.

The SMC Model: Identification of Artistically Gifted Students from Low Income Families (사회적 배려대상 예술영재 판별모형 개발)

  • Lee, Seon-Young
    • Journal of Gifted/Talented Education
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    • v.22 no.1
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    • pp.87-115
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    • 2012
  • This study is about the development of an identification model for artistically gifted students from low income and/or multi-cultural families. Given that parental support at early ages is crucial for talent development, students from low income families are often dismissed in recognizing their artistic giftedness. Based on a comprehensive literature review and consultations with experts in art, the SMC model was developed to identify disadvantaged gifted students in the areas of music, visual arts, and ballet. The model consists of three steps of identification, such as review of documents and teacher recommendations, evaluations of artistic giftedness, and a summative evaluation, and involves multiple criteria for identifying giftedness in both domain general and domain specific arts. SMC is promising in discovering many unrecognized disadvantaged children of artistic potential, thereby using various quantitative and qualitative measures. Yet, issues of validity and reliability of SMC need to be substantiated by subsequent theoretical and empirical studies.

A Comprehensive Review of Emerging Computational Methods for Gene Identification

  • Yu, Ning;Yu, Zeng;Li, Bing;Gu, Feng;Pan, Yi
    • Journal of Information Processing Systems
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    • v.12 no.1
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    • pp.1-34
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    • 2016
  • Gene identification is at the center of genomic studies. Although the first phase of the Encyclopedia of DNA Elements (ENCODE) project has been claimed to be complete, the annotation of the functional elements is far from being so. Computational methods in gene identification continue to play important roles in this area and other relevant issues. So far, a lot of work has been performed on this area, and a plethora of computational methods and avenues have been developed. Many review papers have summarized these methods and other related work. However, most of them focus on the methodologies from a particular aspect or perspective. Different from these existing bodies of research, this paper aims to comprehensively summarize the mainstream computational methods in gene identification and tries to provide a short but concise technical reference for future studies. Moreover, this review sheds light on the emerging trends and cutting-edge techniques that are believed to be capable of leading the research on this field in the future.