• Title/Summary/Keyword: determinant analysis

Search Result 619, Processing Time 0.028 seconds

Analysis of the Determinant for Deteriorating Apartments (공동주택 노후화 결정요인 분석)

  • SangDonLym
    • Proceeding of Spring/Autumn Annual Conference of KHA
    • /
    • 1990.09a
    • /
    • pp.45-56
    • /
    • 1990
  • In this study, existing apartments were examined to find the building elements which affect deterioration of the apartment. Data was analyzed with frequency, and discriminant analysis by SPSS/PC package. According to the results, the deteriorating factors in the apartment were greatly affected by maintance and residents experience in immediate life inconvience and discomfort.

  • PDF

Price Determinant Factors of Artworks and Prediction Model Based on Machine Learning (작품 가격 추정을 위한 기계 학습 기법의 응용 및 가격 결정 요인 분석)

  • Jang, Dongryul;Park, Minjae
    • Journal of Korean Society for Quality Management
    • /
    • v.47 no.4
    • /
    • pp.687-700
    • /
    • 2019
  • Purpose: The purpose of this study is to investigate the interaction effects between price determinants of artworks. We expand the methodology in art market by applying machine learning techniques to estimate the price of artworks and compare linear regression and machine learning in terms of prediction accuracy. Methods: Moderated regression analysis was performed to verify the interaction effects of artistic characteristics on price. The moderating effects were studied by confirming the significance level of the interaction terms of the derived regression equation. In order to derive price estimation model, we use multiple linear regression analysis, which is a parametric statistical technique, and k-nearest neighbor (kNN) regression, which is a nonparametric statistical technique in machine learning methods. Results: Mostly, the influences of the price determinants of art are different according to the auction types and the artist 's reputation. However, the auction type did not control the influence of the genre of the work on the price. As a result of the analysis, the kNN regression was superior to the linear regression analysis based on the prediction accuracy. Conclusion: It provides a theoretical basis for the complexity that exists between pricing determinant factors of artworks. In addition, the nonparametric models and machine learning techniques as well as existing parameter models are implemented to estimate the artworks' price.

A Study on the Explanatory Analysis of Determinants for Location (도시의 입지결정요인 추출에 관한 연구)

  • Kim, Dong-Yoon
    • Journal of The Korean Digital Architecture Interior Association
    • /
    • v.11 no.2
    • /
    • pp.51-60
    • /
    • 2011
  • Although the comparative advantage of cities is emphasized in the context of transition into an information-oriented society and globalization, it is difficult to define the concept and evaluate the status of each city. There have been many studies and appraisals on urban competitiveness with common features of subjective standards by researchers. This study aims at extracting determinants of competitive advantage of location by not normative but data-based approach, and deals with panel data concerning 21 cities in capital region. Factor Analysis, a kind of multivariate methods, is taken up for the purpose and results in various findings. Time-serial 5-factor models constructed by the analysis show temporal variability in the determinants and have non-exhaustive and overlapped categories. This study also finds that 'educational base' is emphasized as a leading determinant and 'health, welfare and public services' factor is getting more important. The other potential factor explaining variables such as college and museum is also emerging, which is considered as an element to attract people from outside. And the fact that traditionally expected factors regarding industrial or productive basis is not drawn out indicates the other way of thinking on the relationship between the essential function of cities and industrial foundation.

An Empirical Analysis on Determinant Factors of Patent Valuation and Technology Transaction Prices (특허가치 결정요인과 기술거래금액에 관한 실증 분석)

  • Sung, Tae-Eung;Kim, Da Seul;Jang, Jong-Moon;Park, Hyun-Woo
    • Journal of Korea Technology Innovation Society
    • /
    • v.19 no.2
    • /
    • pp.254-279
    • /
    • 2016
  • Recently, with the conversion towards knowledge-based economy era, the importance of the evaluation for patent valuation has been growing rapidly because technology transactions are increasing with the purpose of practically utilizing R&D outcomes such as technology commercialization and technology transfer. Nevertheless, there is a lack of research on determinants of patent valuation by analyzing technology transactions due to the difficulty of collecting data in practice. Hence, to suggest quantitative determinants for the patent valuation which could be applied to scoring methods, 15 patent valuation models domestically and overseas are analysed in order to assure the objectiveness for subjective results from qualitative methods such as expert surveys, comparison assessment, etc. Through this analysis, the important 6 common determinants are drawn and patent information is matched which can be used as proxy variables of individual determinant factors by advanced researches. In addition, to validate whether the model proposed has a statistically meaningful effect, total 517 technology transactions are collected from both public and private technology transaction offices and analysed by multiple regression analysis, which led to significant patent determinant factors in deciding its value. As a result, it is herein presented that patent connectivity(number of literature cited) and commercialization stage in market influence significantly on patent valuation. The meaning of this study is in that it suggests the significant quantitative determinants of patent valuation based on the technology transactions data in practice, and if research results by industry are systematically verified through seamless collection of transaction data and their monitoring, we would propose the customized patent valuation model by industry which is applicable for both strategic planning of patent registration and achievement assessment of research projects (with representative patents).

Stability analysis of the rotating and stationary grooved journal bearings (정지홈과 회전홈을 갖는 저널베어링의 안정성 평가)

  • Lee, M.H.;Lee, J.H.;Jang, G.H.
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
    • /
    • 2013.04a
    • /
    • pp.141-146
    • /
    • 2013
  • This research investigates the stability analysis for the rotating and the stationary grooved journal bearing. The dynamic coefficients of the journal bearing are calculated by using FEM and the perturbation method. When journal bearing is in whirling motion, the dynamic coefficients have time-varying components as a sine wave due to the reaction force of oil film toward the center of journal even in the steady state. The solutions for the equations of motion can be assumed as the Fourier series expansion. The equations of motion can be rewritten as the linear algebraic equations with respect to the Fourier coefficients. Then, stability of the grooved journal bearing can be calculated by Hill's infinite determinant. The periodic function of dynamic coefficients is derived using Fourier Fast Transform(FFT).The stability of journal bearing is determined as rotating speed increases and the stability of rotating grooved journal bearing is compared and discussed with the stability of stationary grooved journal bearing.

  • PDF

Fatigue reliability analysis of steel bridge welding member by fracture mechanics method

  • Park, Yeon-Soo;Han, Suk-Yeol;Suh, Byoung-Chul
    • Structural Engineering and Mechanics
    • /
    • v.19 no.3
    • /
    • pp.347-359
    • /
    • 2005
  • This paper attempts to develop the analytical model of estimating the fatigue damage using a linear elastic fracture mechanics method. The stress history on a welding member, when a truck passed over a bridge, was defined as a block loading and the crack closure theory was used. These theories explain the influence of a load on a structure. This study undertook an analysis of the stress range frequency considering both dead load stress and crack opening stress. A probability method applied to stress range frequency distribution and the probability distribution parameters of it was obtained by Maximum likelihood Method and Determinant. Monte Carlo Simulation which generates a probability variants (stress range) output failure block loadings. The probability distribution of failure block loadings was acquired by Maximum likelihood Method and Determinant. This can calculate the fatigue reliability preventing the fatigue failure of a welding member. The failure block loading divided by the average daily truck traffic is a predictive remaining life by a day. Fatigue reliability analysis was carried out for the welding member of the bottom flange of a cross beam and the vertical stiffener of a steel box bridge by the proposed model. Results showed that the primary factor effecting failure time was crack opening stress. It was important to decide the crack opening stress for using the proposed model. Also according to the 50% reliability and 90%, 99.9% failure times were indicated.

Effects of Design Detail Types of Ladies Wear on Sensibility and Emotion (여성복 디테일 종류에 따른 감성과 상대적 영향력)

  • Jung, Kyung-Yong;Na, Young-Joo
    • Fashion & Textile Research Journal
    • /
    • v.7 no.2
    • /
    • pp.162-168
    • /
    • 2005
  • The pictures of design details, such as collar type, sleeve type, skirt type, and skirt length, and color tone were evaluated by 377 persons in terms of sensibility and emotion. The data were analyzed by SPSS using ANOVA and Factor analysis to find out the most effective types of details on consumer's sensibility and emotion, and the methods were introduced. The most effective type is skirt length on sensibility and emotion of women's dress. The second type is different according to sensibility and emotion. Sensibility and emotion were composed of three concept: contemporary, mature and character. Sleeve type is second determinant to contemporary concept, and color tone is to mature concept, collar type is to character concept. 41 each details of design were positioned into 3D-concept space to connect each detail type and fashion concept of women's dress.

A Study on Determinant Factors and Choice Intention for Family Restaurant Dining In Seoul (패밀리레스토랑의 선택속성과 재방문가능성에 관한 연구)

  • 진양호
    • Culinary science and hospitality research
    • /
    • v.6 no.2
    • /
    • pp.157-173
    • /
    • 2000
  • The purpose of this study is to identify important selection attributes for customers dining at family restaurants in Seoul, and the determinant and predicting factors in customers' intentions to return. A closed-ended questionnaire was used, and a systematic sampling approach was employed to survey a sample of customers in family restaurants. The data were analyzed using factor and multiple regression analysis. A four-dimensional structure was established from 14 selection attributes. The results of the study indicated four dimensions that were significantly related to the likelihood of customers returning to the same restaurants, as follows: Food and Environment, Service and Courtesy, Price and value, and Location and promotion. The findings from this study have both theoretical and practical implications. Implications of these findings are discussed.

  • PDF

An Empirical Analysis on the Determinants of Scope of Public Health : the case of developed countries (선진산업국가에서의 공공의료규모 결정요인에 관한 실증분석)

  • 김흥식
    • Health Policy and Management
    • /
    • v.5 no.2
    • /
    • pp.1-17
    • /
    • 1995
  • This paper porports to explicate the factors determining the scope of public health in advanced capitalist countries. A few studies have veen conducted for such a purpose, yet even these studies show the deficiency of failing to consider a very important factor : the influence of medical profession. Since medical profession has played a significant role in the health policymaking, it is necessary to incorporate the hypothesis that assumes the causal links between the differing medical professional power and the vrying scope of public health. Following this view, this paper examined the various hypothese, including the power of medical profession, and found that the variables related to medical professional power as well as social democratic perspectives are its significant factors. In particular, our result shows that the power of medical profesion is the most important determinant, thereby supporting the hypothesis developed in this paper.

  • PDF

Brand Credibility and Brand Involvement as an antecedent of Brand Equity: An Empirical Study

  • Rao, Roopesh
    • Asia-Pacific Journal of Business
    • /
    • v.3 no.1
    • /
    • pp.17-28
    • /
    • 2012
  • Very few studies have been done on Studying Brand credibility and Involvement as a determinant of Brand Equity. Literature on Brand Equity signifies lots of constructs like, Country of Origin, Brand Signaling, and Brand Power act as determinant to Brand Equity. This study tries to formulate relationship between the construct Brand Credibility and Brand Involvement as Antecedents to Brand Equity of Product. Using a Two Step Structural Equation Modelling approach analysis on the data collected on Mobile Phone brands were done. Result signified that Brand Credibility and Brand Involvement had significant influence on Brand Equity of the Product. On the Other hand there was no significant relationship between Brand Credibility and Brand Involvement of the Product.

  • PDF