scholarly journals On the Assessment of Homogeneity in a Uniform Regression Model

2020 ◽  
pp. 115-118
Author(s):  
T.P. Makhaeva ◽  
I.V. Ponomarev
Keyword(s):  
Regression Model ◽  
Correlation Coefficient ◽  
Probabilistic Approach ◽  
Geometric Interpretation ◽  
Functional Dependencies ◽  
Initial Stage ◽  
Correlation Component ◽  
Sample Data ◽  
The Relationship ◽  
Selection Of

When conducting an exploratory analysis of the data and the subsequent construction of functional dependencies between the observed phenomena, it is often necessary to assess the degree of dependence between the studied data. The basis for obtaining such criteria with a probabilistic approach usually includes the correlation component of the sample. The choice of the used indicator directly depends on the methods of studying the sample, as well as the tools for constructing the model. In most cases, at the initial stage of modeling, it is precisely the homogeneity estimates of the sample that are studied, a good selection of which can reduce the complexity of constructing the relationship between the data.In this paper, we study a method for assessing  the uniformity of sample data when constructing a uniform regression model. The first part of the paper describes the correlation coefficient for the L∞ regression, studies the interval of its change, describes the geometric interpretation and the algorithm for constructing this indicator. In the second part of the paper, we study the method of constructing an indicator of "concentration" of the sample. For this, formulas are derived that relate the correlation coefficient to the magnitude of the original sample. In conclusion, a description is given of the algorithms for constructing the considered indicators, and conclusions are drawn about the complexity of these algorithms.

IMPROVEMENT OF SPRING DURUM WHEAT SELECTION METHODOLOGIES UNDER CLIMATE CHANGE CONDITIONS

1970 ◽  
pp. 33-36
Author(s):  
А. I. Grabovets ◽  
V. P. Kadushkina ◽  
S. А. Kovalenko
Keyword(s):  
Grain Yield ◽  
Durum Wheat ◽  
Correlation Coefficient ◽  
Harvest Index ◽  
Unit Area ◽  
Correlation Coefficients ◽  
Chemical Mutagenesis ◽  
Main Method ◽  
The Relationship ◽  
Selection Of

With the growing aridity of the climate on the Don, it became necessary to improve the methodology for conducting the  breeding of spring durum wheat. The main method of obtaining the source material remains intraspecific step hybridization. Crossings were performed between genetically distant forms, differing in origin and required traits and properties. The use of chemical mutagenesis was a productive way to change the heredity of genotypes in terms of drought tolerance. When breeding for productivity, both in dry years of research and in favorable years, the most objective markers were identified — the size of the aerial mass, the mass of grain per plant, spike, and harvest index. The magnitude of the correlation coefficients between the yield per unit area and the elements of its structure is established. It was most closely associated with them in dry years, while in wet years it decreased. Power the correlation of the characteristics of the pair - the grain yield per square meter - the aboveground biomass averaged r = 0.73, and in dry years it was higher (0.91) than in favorable ones (0.61 - 0.70) , between the harvest and the harvest index - r = 0.81 (on average). In dry years, the correlation coefficient increased to 0.92. Research data confirms the greatest importance of the mass of grain from one ear and the plant in the formation of grain yield per unit area in both dry and wet years. In dry years, the correlation coefficient between yield and grain mass per plant was on average r = 0.80; in favorable years, r = 0.69. The relationship between yield and grain mass from the ear was greater — r = 0.84 and r = 0.82, respectively. Consequently, the breeding significance of the aboveground mass and the productivity of the ear, as a criterion for the selection of the crop, especially increases in the dry years. They were basic in the selection.

scholarly journals The relationship between the effectiveness of performing technical elements and indicators of static and dynamic balance in young acrobats 6-7 years old

2021 ◽  
Vol 7 (4) ◽  
pp. 58-68
Author(s):  
T. Chernykh ◽  
V. Mulyk ◽  
K. Mulyk ◽  
А. Skaliy ◽  
А. Ostrowski ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Dynamic Equilibrium ◽  
Dynamic Balance ◽  
Rank Correlation ◽  
Young Athletes ◽  
Spearman’S Rank Correlation ◽  
Spearman’S Rank Correlation Coefficient ◽  
Initial Stage ◽  
Equilibrium Test ◽  
The Relationship

Purpose: to determine the relationship between the performance of basic elements and indicators of static and dynamic balance in the training process of young acrobats 6-7 years. Material and methods. The study involved 16 young acrobats at the stage of initial training (age 6-7 years). All parents of the participants gave written consent for the participation of children in the study. The study involved testing the technique of performing basic elements of sports acrobatics and assessing the static and dynamic balance of young athletes. The relationship between (swallow, shoulder blade, forward squat, wheel (sideways overturning), bridges) and static and dynamic equilibrium tests was determined. Spearman's rank correlation coefficient method was used as a method of statistical analysis. Results. It is established that the largest relationship between the performance of basic elements and static balance in the basic exercises of young acrobats have: Romberg's test with the elements "Swallow", "Stand on the shoulders", "Bridge"; Biryuk test with elements "Swallow", "Wheel", "Bridge"; balance "Swallow" with elements "Swallow", "Wheel"; static equilibrium test with the elements "Swallow", "Rack on the shoulders", "Rolling forward with a squat", "Wheel". Reliable values ​​of the correlation coefficient were established between the tests of dynamic balance and the basic elements of sports acrobatics in young athletes 6-7 years, namely: "Swallow", "Flip forward with a squat", "Wheel" and "Bridge". The analysis of special tests of static and dynamic balance in mastering the basic elements of acrobatics at the first stage of long-term training makes it possible to use them to determine the level of coordination capabilities of young athletes and further improve the use of acrobatic exercises. Conclusions. A reliable relationship between the performance of basic exercises and indicators of static and dynamic balance in young acrobats at the initial stage of training. It is shown that the level of static and dynamic balance is of great importance for the assimilation and improvement of basic elements of technology by young acrobats 6-7 years. Static and dynamic balance tests can be used to individually build training programs and young acrobats. It is shown that sports acrobatics is a significant means of developing the balance of children 6-7 years.

The Arc Sound Characteristic on MIG Weld Penetration

2010 ◽  
Vol 97-101 ◽  
pp. 3948-3951 ◽  
Author(s):  
Li Jun Liu ◽  
Lan Hu
Keyword(s):  
Welding Process ◽  
Sound Signal ◽  
Weld Penetration ◽  
Time Frequency ◽  
Sample Data ◽  
On Line ◽  
The Relationship ◽  
Arc Sound ◽  
Arc Sound Signal ◽  
Selection Of

Arc sound signal in MIG welding contains plenty of welding information, which is an important signal source of weld penetration. Aiming at on-line monitoring of weld penetration, the relationship between arc sound signal and penetration is analyzed in time-frequency domain through a reasonable selection of sample data. The results show that the spectrum of arc sound signal and penetration status are highly correlative. The changes of penetration can accurately detected by variation of signal energy from 1500 Hz to 4500 Hz in welding process. The above experiments verify the feasibility of monitoring the penetration through arc sound signal and provides theory and application foundation for penetration adaptive control.

scholarly journals PERANAN SUASANA KERJA TERHADAP KEINGINAN PINDAH KERJA PADA KARYAWAN PT HASNUR JAYA UTAMA

Jurnal Ecopsy ◽  
2016 ◽  
Vol 1 (2) ◽  
Author(s):  
Maya Irka Anggriani ◽  
Hemy Heryati Anward ◽  
Rooswita Santia Dewi
Keyword(s):  
Job Satisfaction ◽  
Correlation Coefficient ◽  
Random Sampling ◽  
Linear Regression Analysis ◽  
Coefficient Of Determination ◽  
Simple Linear Regression ◽  
Close Relationship ◽  
The Relationship ◽  
Selection Of

Penelitian ini bertujuan untuk mengetahui ada tidaknya peranan suasana kerja terhadap keinginan pindah kerja karyawan. Populasi pada penelitian ini yaitu seluruh karyawan PT. Hasnur Jaya Utama. Jenis pengambilan sampel yang dilakukan pada penelitian ini adalah Purposive Random Sampling yaitu pemilihan sampel secara acak sesuai dengan karakteristik yang ditentukan berdasarkan tujuan penelitian yang berjumlah 60 orang.  Sedangkan metode pengumpulan data dengan menggunakan skala suasana kerja, skala kepuasan kerja dan kuesioner keinginan pindah kerja. Dalam penelitian ini analisis data menggunakan analisis regresi linear sederhana. Hasil analisis peranan suasana kerja terhadap kepuasan kerja, diperoleh koefisien korelasi R sebesar 0,759 artinya hubungan suasana kerja dan kepuasan kerja erat. Ditemukan juga koefisien determinasi (R2) yang menunjukkan peranan suasana kerja terhadap kepuasan kerja sebesar 57,5% dan untuk analisis t observasi (8,882) > t tabel (1,672) menunjukkan  ada peranan suasana kerja terhadap kepuasan kerja. Kemudian, hasil analisis peranan kepuasan kerja terhadap keinginan pindah kerja ditemukan koefisien regresi R (0,680) artinya kepuasan kerja dan keinginan pindah kerja memiliki hubungan yang cukup erat. Selanjutnya, diperoleh juga (R2) yang menunjukkan peranan kepuasan kerja terhadap keinginan pindah kerja sebesar 46,3%  dan   untuk  analisis   t   observasi (-7,069) t tabel (1,672) menunjukkan ada peranan kepuasan kerja terhadap keinginan pindah kerja dengan signifikan negatif. Berdasarkan hasil penelitian tersebut maka dapat ditarik kesimpulan bahwa suasana kerja dan kepuasan kerja pada karyawan perlu diperhatikan oleh perusahaan agar dapat meminimalkan keinginan pindah kerja karyawan. Kata Kunci: Suasana kerja, kepuasan kerja, keinginan pindah kerjaThis study purposed to determine whether there is the influence of the working atmosphere to intention turnover on employees. The population in this study are all employees of PT. Hasnur Jaya Utama. Type of sampling conducted in this study is Purposive Random Sampling is the selection of a random sample according to the characteristics that are determined based on the research goals of 60 people. The methods of data collection by using the scale of the working atmosphere, the scale of job satisfaction and intention turnover questionnaire. In this study analyzes the data using simple linear regression analysis. The results of the analysis of the influence of working atmosphere to job satisfaction, the correlation coefficient R of 0.759 means that the relationship working atmosphere and job satisfaction is quite close. Also found the coefficient of determination (R2) which indicates the role of working conditions on job satisfaction at 57.5% and for the analysis of observation (8.882) > t table (1.672) which indicates means that the influence of the atmosphere to job satisfaction. Then, the results of the analysis of the influence of job satisfaction to intention turnover a correlation coefficient R (0.680) means that job satisfaction and intention turnover to have a close relationship. Furthermore, also obtained (R2 ) which indicates the role of job satisfaction to intention turnover of 46,3% and for the analysis of t observation (-7.069) > t table (1.672) which indicates means that the influence of job satisfaction to intention turnover with a significant negative . Based on these results it can be concluded that the working atmosphere and job satisfaction in employees need to be considered by the company in order to minimize intention turnover ob the employees. Keywords: The working atmosphere, job satisfaction, intention turnover.

The automatic selection of molecular crystal structures by combining stereochemical criteria and high-speed computing

1962 ◽  
Vol 267 (1331) ◽  
pp. 566-589 ◽  
Keyword(s):  
Crystal Structures ◽  
Molecular Crystal ◽  
High Speed ◽  
Molecular Crystals ◽  
Diamagnetic Anisotropy ◽  
Initial Stage ◽  
Trial Structure ◽  
Relationship Of ◽  
The Relationship ◽  
Selection Of

The increasing use of digital computers in the final stages of the analysis of the structures of molecular crystals now means that the selection of a trial structure for automatic refinement has become the most time-consuming phase of such analyses. This paper shows that in certain types of problem this initial stage can also be carried out on computers, by making use of stereochemical information available at the outset. Examples of the successful application of such methods are given, and ways of increasing their power and flexibility when very fast computers become available are described. The relationship of such geometrical calculations to problems in crystal physics is also indicated, and it is shown that in appropriate cases measurements of, for example, diamagnetic anisotropy can be combined with geometrical results to provide an exceptionally rapid selection of possible molecular orientations.

scholarly journals PAIN: the Word, the Image and the Concept in the Dostoevsky’s Thought and Speech Space

2021 ◽  
Vol 12 (2) ◽  
pp. 436-453
Author(s):  
Alexey V. Varzin
Keyword(s):  
Native Speaker ◽  
General Structure ◽  
Russian Language ◽  
Language And Culture ◽  
Continuous Sampling ◽  
Initial Stage ◽  
Linguistic Methods ◽  
Academy Of Sciences ◽  
The Relationship ◽  
Selection Of

The article is devoted to the study of the linguistic expression of the phenomenon of pain in the texts of F.M. Dostoevsky. The material of the analysis is the texts of works of fiction, journalism and letters of the Great Russian writer. The study of Dostoevskys texts is preceded by an analysis of entries in explanatory and specialized dictionaries and encyclopedias, including articles in the Dictionary of Dostoevskys Language. The relevance of the study is determined by the approaching bicentennial of F.M. Dostoevsky, in whose works the phenomenon of pain has become one of the important subjects of the image. The specificity of this work lies in the reliance on linguistic methods of studying the phenomenon of pain while maintaining the interdisciplinary focus of the research as a whole. Various associative connections of the word pain and its derivatives in the contexts of the writers works of different genres are being studied. At the initial stage, the selection of material is carried out by the method of continuous sampling using the DiaWin software system of the Department of Experimental Lexicography of the V.V. Vinogradov Russian Language Institute of the Russian Academy of Sciences. The material thus obtained, is subjected to a multilevel analysis, in course of which the specificity of the conceptualization of pain in language and culture is revealed and the features of the depiction and interpretation of the phenomenon of pain in the discourse of Dostoevsky and his characters are revealed. Conclusions are formulated about the stable associative connections of the lexeme pain, the specificity of the linguistic depiction of various states of pain in the writers texts is revealed, the original interpretations of the concept of pain in the discourses of heroes-ideologists are analyzed. As a result, the analyzed phenomenon appears in multidimensional illumination. The general structure of the frame is established. The relationship between external symptoms and internal sensations of physical and mental pain is revealed. It is postulated that the explication of the concept of pain by a native speaker is fraught with significant difficulties, since pain is introspective and subjectively experienced. This special state is experienced and lived on. The contextual combinations of meanings of the word pain in Dostoevskys texts are highlighted. The specificity of the figurative representation of pain situations in the writers works is revealed. The increments of meaning characteristic of Dostoevskys contexts are analyzed. As a result, pain is interpreted as a complex phenomenon of language and culture and an important concept in the discourse of F.M. Dostoevsky.

scholarly journals Research on the Fairness of MPACC Selection Based on Examiner Heterogeneity

2021 ◽  
Vol 235 ◽  
pp. 03010
Author(s):  
Yan Wang ◽  
Zhuqian He ◽  
Jingjie Zheng
Keyword(s):  
Regression Model ◽  
Test Scores ◽  
Test Results ◽  
Before And After ◽  
The Relationship ◽  
Selection Of

The selection of MPACC (Master of Professional Accountant) is a key step in the training of senior accounting personnel. This paper examines the relationship between examiner heterogeneity and MPACC second test scores. We try to clarify the reason for the unfair phenomenon because of the heterogeneity of examiners in MPACC second test results and seek ways to solve this problem. The study found that the MPACC second test results are unfair. This unfairness is caused by the heterogeneity of the examiner. However, standardized algorithms balance the differences in MPACC examiner heterogeneity. The regression model was constructed by using the MPACC second test scores before and after standardization, which verified the existence of examiner heterogeneity and the effect of the standardized algorithm on the examiner heterogeneity. This article is based on the differences of MPACC second test scores due to examiner’s heterogeneity. We propose the application of standardized algorithm, which will play an important role in improving the quality of MPACC enrollment and promoting the training of senior accounting personnel.

scholarly journals Pengaruh Lingkungan Kerja Terhadap Motivasi Karyawan Bagian Produksi di PT. Permata Borneo Lestari Kabupaten Mempawah

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Dian Puspita Sari ◽  
Devi Yasmin ◽  
Fenni Supriadi
Keyword(s):  
Linear Regression ◽  
Regression Model ◽  
Work Environment ◽  
Correlation Coefficient ◽  
Work Motivation ◽  
Linear Regression Analysis ◽  
Employee Motivation ◽  
Coefficient Of Determination ◽  
Feasibility Test ◽  
The Relationship

The purpose of this study was to determine the effect of the work environment on employee motivation at PT. Permata Borneo Lestari Mempawah Regency. The number of samples used in this study was 70 people.The data analysis techniques in this study are Simple Linear Regression Analysis, Correlation Coefficient Analysis (r), Determination Coefficient Analysis (R2), Feasibility Test Regression Model (Test F). the results of this study note that the regression equation Y = 2,983 + 0,387X. The value of the Correlation Coefficient (r) is 0,466, which means that the relationship between the work environment and employee motivation at PT. Permata Borneo Lestari Mempawah Regency is medium. The value of the coefficient of determination (R2) is 0,217. it means that the contribution of the variable Work Environment in influencing the ups and downs of Work Motivation of employees at PT. Permata Borneo Lestari Mempawah Regency is 21,7% and the remaining 78,3% is influenced by other variables not examined in this study. The calculated F value is 18,889. This is higher than f table which is worth 3,98. it means that the linear regression model can be used to predict the value of Employee A motivation that is influenced by the Work Environment at PT. Permata Borneo Lestari Mempawah Regency.

scholarly journals Relationship between Knowledge of Menstruation with the Female Teenage Readiness in Facing Menarche

Biosfer ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 1-9
Author(s):  
Elis Rohmah ◽  
Refirman Djamahar ◽  
Sri Rahayu
Keyword(s):  
Regression Model ◽  
Human Development ◽  
Correlation Coefficient ◽  
Critical Period ◽  
Positive Relationship ◽  
Psychological Impact ◽  
Development Stage ◽  
Simple Correlation ◽  
Regression Test ◽  
The Relationship

Adolescence is a critical period in a human development stage. One of the most important periods for female teenage is menarche that causes different impact, one of them is psychological impact. Acquired knowledge about menstruation will affect the perception of adolescents about menarche that can also affect the readiness of the girls in facing menarche. The purpose of this study was to determine the relationship between knowledge about menstruation with the readiness of female teenage in facing menarche. This research was conducted in SDN lubang buaya 01 and 05 on May-June 2015. Data obtained by giving knowledge and readiness questionnaire to 47 respondents in SDN Lubang Buaya 01 and as many as 51 respondents in SDN Lubang Buaya 05. Data were analyzed by using a simple correlation - regression test. The correlation coefficient (rxy) was 0.593 indicates that there is a moderate possitive relationship between Knowledge of Menstruation with the Female Teenage Readiness in Facing Menarche through the regression model Ŷ = 29.831 + 0,649X. It can be conclude that the knowledge has a moderate positive relationship with the female teenage readiness in facing menarche.

scholarly journals The Application of a Logistic Regression Model for Predicting Preferences of Transport System Users

2018 ◽  
Vol 64 (4) ◽  
pp. 145-159
Author(s):  
A. Brzeziński ◽  
K. Brzeziński ◽  
T. Dybicz ◽  
Ł. Szymański
Keyword(s):  
Logistic Regression ◽  
Regression Model ◽  
Transport System ◽  
Urban Areas ◽  
Logistic Regression Model ◽  
Probabilistic Approach ◽  
The Impact ◽  
Selection Of ◽  
Made In

AbstractWithin the INMOP 3 research project, an attempt was made to solve a number of problems associated with the methodology of modelling travel in urban areas and the application of intermodal models. One of these is the ability to describe the behaviour of transport system users, when it comes to making decisions regarding the selection of means of transport and searching for relationships between travel describing factors and the decisions made in regard of means of transport choice.The paper describes a probabilistic approach to the determination of modal split, and the application of a logistic regression model to determine the impact of variables describing individual and mass transport travels on the probability of selecting specific means of transport. Travels in local model of Warsaw city divided into 9 motivation groups were tested, for which ultimately 8 models were developed, out of which 7 were deemed very well fitted (obtained pseudo R2 was well above 0.2).

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