• Title/Summary/Keyword: Selection Analysis

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The Determinants of Economic and Educational Supports Selection of Small Self-employed Business (소규모자영업의 경제적$\cdot$교육적 지원 선택의 영향요인)

  • Hong Sung-Hee
    • Journal of Family Resource Management and Policy Review
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    • v.9 no.2
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    • pp.1-21
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    • 2005
  • The purpose of this study was to analyze the effect of the influencing factors on the economic and educational supports selection of small self-employed business. A sample of 321 was selected from self-employed workers living in Daegu. For data analysis, logistic regression was used. The major findings were as follows: 1 The determinants of the economic supports selection in self-employed business were father's working experiences in self-employed business, taking employees or not in business, having housing ownership or not, and as well as the amount of starting capital. 2. The determinants of the educational supports selection in self-employed business were self-employer's working experience as self-employed before or not, and empowerment with self-employed work.

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Performance Analysis of SFBC-OFDM Systems with a Antenna Selection using Pilot Symbols (파일럿 심볼을 이용한 안테나 선택방법을 적용한 SFBC-OFDM 시스템의 성능분석)

  • Kang, Heehoon
    • Journal of the Institute of Electronics and Information Engineers
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    • v.52 no.7
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    • pp.165-168
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    • 2015
  • In this paper, we analyze a SFBC-OFDM(Space Frequency Block Code-Orthogonal Frequency Division Multiplexing) system with antenna selection method using pilot symbols. An antenna selection criterion is based on channel coefficients estimated from pilot symbols. At each frequency, the channel coefficients is arranged and the best is selected, and then data is sent to those antenna with the best coefficients. Also, The coding and diversity gain of the proposed system are analyzed.

Model Selection in Artificial Neural Network

  • Kim, Byung Joo
    • International journal of advanced smart convergence
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    • v.7 no.4
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    • pp.57-65
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    • 2018
  • Artificial neural network is inspired by the biological neural network. For simplicity, in computer science, it is represented as a set of layers. Many research has been made in evaluating the number of neurons in the hidden layer but still, none was accurate. Several methods are used until now which do not provide the exact formula for calculating the number of thehidden layer as well as the number of neurons in each hidden layer. In this paper model selection approach was presented. Proposed model is based on geographical analysis of decision boundary. Proposed model selection method is useful when we know the distribution of the training data set. To evaluate the performance of the proposed method we compare it to the traditional architecture on IRIS classification problem. According to the experimental result on Iris data proposed method is turned out to be a powerful one.

Analysis of the Maturity Selection on Ship Finance: A Behavioral Finance Perspective

  • Kim, Wu-Seok
    • Journal of Navigation and Port Research
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    • v.46 no.2
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    • pp.121-133
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    • 2022
  • The purpose of this study was to analyze decision-making regarding ship finance term selection from the behavioral finance perspective and to confirm if the causes and backgrounds of decision-making related to the term selection of ship finance are explicitly explained by behavioral finance theories. Additionally, through a case study, this study infers if decisions are irrational. Narrative and questionnaire responses on the selection of the ship finance period were obtained and analyzed from the behavioral finance perspective. Some shipping companies incur additional losses by choosing inappropriate ship-financing terms. This study applied behavioral finance theories, such as the certainty effect, availability heuristic, and loss aversion, to clearly explain the causes and background of such decision-making. Based on the results, it was found that behavioral finance theories impact ship financing decisions and errors related to behavioral finance can result in irrational decisions. Ship finance managers must be vigilant in preventing behavioral finance errors that can affect the decision-making term of ship finance.

A study of creative human judgment through the application of machine learning algorithms and feature selection algorithms

  • Kim, Yong Jun;Park, Jung Min
    • International journal of advanced smart convergence
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    • v.11 no.2
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    • pp.38-43
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    • 2022
  • In this study, there are many difficulties in defining and judging creative people because there is no systematic analysis method using accurate standards or numerical values. Analyze and judge whether In the previous study, A study on the application of rule success cases through machine learning algorithm extraction, a case study was conducted to help verify or confirm the psychological personality test and aptitude test. We proposed a solution to a research problem in psychology using machine learning algorithms, Data Mining's Cross Industry Standard Process for Data Mining, and CRISP-DM, which were used in previous studies. After that, this study proposes a solution that helps to judge creative people by applying the feature selection algorithm. In this study, the accuracy was found by using seven feature selection algorithms, and by selecting the feature group classified by the feature selection algorithms, and the result of deriving the classification result with the highest feature obtained through the support vector machine algorithm was obtained.

Comparing Bayesian model selection with a frequentist approach using iterative method of smoothing residuals

  • Koo, Hanwool;Shafieloo, Arman;Keeley, Ryan E.;L'Huillier, Benjamin
    • The Bulletin of The Korean Astronomical Society
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    • v.46 no.1
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    • pp.48.2-48.2
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    • 2021
  • We have developed a frequentist approach for model selection which determines consistency of a cosmological model and the data using the distribution of likelihoods from the iterative smoothing method. Using this approach, we have shown how confidently we can distinguish different models without comparison with one another. In this current work, we compare our approach with conventional Bayesian approach based on estimation of Bayesian evidence using nested sampling for the purpose of model selection. We use simulated future Roman (formerly WFIRST)-like type Ia supernovae data in our analysis. We discuss limits of the Bayesian approach for model selection and display how our proposed frequentist approach, if implemented appropriately, can perform better in falsification of individual models.

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Multi-Dimensional Selection Method of Port Logistics Location Based on Entropy Weight Method

  • Ruiwei Guo
    • Journal of Information Processing Systems
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    • v.19 no.4
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    • pp.407-416
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    • 2023
  • In order to effectively relieve the traffic pressure of the city, ensure the smooth flow of freight and promote the development of the logistics industry, the selection of appropriate port logistics location is the basis of giving full play to the port logistics function. In order to better realize the selection of port logistics, this paper adopts the entropy weight method to set up a multi-dimensional evaluation index, and constructs the evaluation model of port logistics location. Then through the actual case, from the environmental dimension and economic competition dimension to make choices and analysis. The results show that port d has the largest logistics competitiveness and the highest relative proximity among the three indicators of hinterland city economic activity, hinterland economic structure, and port operation capacity of different port logistics locations, which has absolute advantages. It is hoped that the research results can provide a reference for the multi-dimensional selection of port logistics site selections.

A Study on the Importance of Selection Attributes according to the Types of Makgeolli Consumers based on Purchase and Drinking Motives (막걸리 구매 및 음용 동기에 따른 소비자 유형별 선택속성 중요도에 관한 연구)

  • Jeon, Hyeon-Mo;Moon, Ok-Sun
    • Culinary science and hospitality research
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    • v.17 no.4
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    • pp.59-73
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    • 2011
  • The purpose of this study is to establish a marketing strategy for the makgeolli manufacturing industry. We fractionized cousumer types depending on motives for purchase of customers who had bought makeolli or drunk it for the last six months. We also examined the relationship between makgeolli selection attributes and customer satisfaction by the cousumer types. SPSS 15.0 statistical package was used to process data. Frequency analysis, factor analysis, a reliability test, K-means cluster analysis, one-way ANOVA, and multiple regression were executed. As a result, the motives to purchase and drink were divided into four factors - marketing, effect on health, self-desires, outside environment; consumers into three types - dependent type, loving type, indifferent type; makgeolli selection attributes into five factors - health characteristics, visual elements, brand characteristics, drinking characteristics, purchase characteristics. It was shown that the makgeolli loving type considered all the makgeolli selection attributes as most important; the dependent type considered the health characteristics and visual elements as less important than the loving type did. The indifferent type considered all the makgeolli selection attributes as less important compared with the other types. Among the makgeolli selection attributes, drinking characteristics and the purchase characteristics had effects on customer satisfaction.

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A Study on Mathematics Question Item Trend in Elementary School Teacher Selection Test (초등교사 임용 시험에서 수학 교과 문항의 출제 동향 분석)

  • Lee, Jong-hak
    • Journal of the Korean School Mathematics Society
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    • v.18 no.4
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    • pp.431-448
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    • 2015
  • Elementary school teacher selection test has to be implemented for knowledge(MKT) to estimate and to be a step in the expansionary direction. For this, It has to be analyzed closely in terms of teacher's MKT first that questions set from selection tests until now. In this research, some standards were established by type of question, grade, contents field and subject from 84 mathematics questions set at examinations. And it was analyzed concretely by general tendency and produced the results of analysis related to elementary teacher's MKT in elementary school teacher selection test since year 2000. The results showed that descriptive and short answer type was mostly set(71.4%) in type of question and integrated grade type was mostly set(41.7%) in type of grade in elementary school teacher selection test. And in type of contents field, rated from highest to lowest, number and operations(31.0%), measurement(23.8%), figure(15.5%) were set. Textbook/manual(34.5%), solution of problem(26.2%), learning psychology(13.1%) in status of subject were followed in order, but there's no relationship with estimation. This research was based on a standard of precedent study and made an analysis of elementary mathematics questions of selection test since year 2000. Therefore, it has a meaning because of produced results from analysis related to elementary teacher's MKT.

The Framework of Decision Making for Choice of Camping Site Selection Attributes according to Camping Motivation (캠핑동기에 따른 캠핑장 선택속성 의사결정의 프레임워크 구축에 관한 연구)

  • Choo, Seung-Woo
    • Journal of Digital Convergence
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    • v.13 no.10
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    • pp.225-234
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    • 2015
  • This study focused on building the convergence framework of decision-making for camping site selection attributes. The first stage of study is to identify the camping motivations. The camping motivations are composed of 5 factors. The second stage is to identify the camping site selection attributes. They are composed of 4 factors. The relationships between camping site selection attributes and camping motivations are examined through the multi-regression analysis. The camping site selection attributes were significantly influenced by thr type of camping motivation. Lastly, the relationship between camping site selection attributes and camper's satisfaction and behavioral intention are testified. The implications are that camping site operators and developers need to understand the segmented camping motivations and site selection attributes. They could be the guideline of implementing the developing planning strategies of camping site.