scholarly journals Decision Trees in the Tests of Artillery Igniters

2020 ◽  
Vol 50 (1) ◽  
pp. 95-116
Author(s):  
Dariusz Ampuła
Keyword(s):  
Decision Trees ◽  
Classification Tree ◽  
Test Results ◽  
Correct Model ◽  
Diagnostic Decision ◽  
Binary Character ◽  
Full Structure ◽  
Independent Variable ◽  
Resultant Matrix

AbstractThe article addressed the method for building decision trees paying attention to the binary character of the tree structure. The methodology for building our decision tree for KW-4 igniters was presented. It involves determining features of tested igniters and applied predictors, which are necessary to create the correct model of the tree. The classification tree was built based on the possessed test results, determining the adopted post-diagnostic decision as the qualitative independent variable. The schema of the resultant classification tree and the full structure of this tree together with the results in end nodes were shown. The obtained graphic and tabular sequence of the designed tree was characterized, and the prediction accuracy was evaluated on the basis of the resultant matrix of incorrect classifications. The quality of the resultant predictive model was assessed on the basis of the chosen examples by means of the ‘ROC’ curve and the graph of the cumulative value of increase coefficient.

scholarly journals Prediction of Post-Diagnostic Decisions for Tested Hand Grenades’ Fuzes Using Decision Trees

2021 ◽  
Vol 12 (2) ◽  
pp. 39-54
Author(s):  
Dariusz AMPUŁA
Keyword(s):  
Decision Trees ◽  
Classification Tree ◽  
Lift Coefficient ◽  
Tree Model ◽  
Diagnostic Decision ◽  
The Matrix ◽  
Full Structure ◽  
History Of ◽  
Formal Requirements

The article presents a brief history of creation of decision trees and defines the purpose of the undertaken works. The process of building a classification tree, according to the CHAID method, is shown paying particular attention to the disadvantages, advantages, and characteristics features of this method, as well as to the formal requirements that are necessary to build this model. The tree’s building method for UZRGM (Universal Modernised Fuze of Hand Grenades) fuzes was characterized, specifying the features of the tested hand grenade fuzes and the predictors used that are necessary to create the correct tree model. A classification tree was built basing on the test results, assuming the accepted post-diagnostic decision as a qualitative dependent variable. A schema of the designed tree for the first diagnostic tests, its full structure and the size of individual classes of the node are shown. The matrix of incorrect classifications was determined, which determines the accuracy of incorrect predictions, i.e., correctness of the performed classification. A sheet with risk assessment and standard error for the learning sample and the v-fold cross-check were presented. On the selected examples, the quality of the resulting predictive model was assessed by means of a graph of the cumulative value of the lift coefficient and the "ROC" curve

scholarly journals THE EFFECT OF INDEPENDENCE, OBJECTIVITY, KNOWLEDGE, WORK EXPERINECE, INTEGRITY , ON AUDIT QUALITY (Study On West Java Provincial Inspectorate In 2018)

2019 ◽  
Vol 9 (2) ◽  
pp. 141-160
Author(s):  
Yohana Ariska Sihombing ◽  
Dedik Nur Triyanto
Keyword(s):  
Work Experience ◽  
Audit Quality ◽  
Sampling Methods ◽  
Knowledge Work ◽  
Test Results ◽  
West Java ◽  
Independent Variable ◽  
Spss Software ◽  
Positive Effect

Audit quality is audit conducted in accordance with the standard so that it is able to recognized and report in case of violations committed clients. The purpose of this study is to analyse the things that relate to the quality of the audit. This research intends to influence independent variable information simultaneously and is partial. In this research, which became the independent variables namely independence, objectivity, knowledge, work experience, and integrity while the dependent varaibel i.e. the quality of audits.The population in this research is the auditor of internal Inspectorate West Java province year 2018 by the number of respondents as many as 31 people and sampling techniques in the study of saturated samples is random sampling. Methods of analysis in this research is descriptive statistics analysis and multiple regression analysis using SPSS software 23.Based on the test results, the value of R square on this research is of 54.8%, it means that independent varibel influenced dependent variabel 54,8%. While the rest amounted to 45.2% influenced by other factors. Simultaneously varaibel the independence, objectivity, knowledge, work experience, and the integrity of the influential significantly to the quality of the audit. Partially variable positive effect significantly to certify the quality of audits. Partially variable objectivity, knowledge, work experience, and do not affect the integrity of the quality audit. Key Words : Independence, Objectivity, Knowledge, Work Experience, Integrity, Audit Quality 

scholarly journals ANALISIS PENGARUH PROMOSI YANG TERINTEGRASI DAN KEUNGGULAN POSITIONING TERHADAP KEPUTUSAN PEMBELIAN SABUN MANDI LUX DI KOTA AMBON

Jurnal Soso-Q ◽  
2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Anggrainy Chaniago ◽  
Merry M. Pelupessy ◽  
Sarifuddin Sarifuddin ◽  
Yulianty S. Ginting
Keyword(s):  
Coefficient Of Determination ◽  
Test Results ◽  
Significant Positive Effect ◽  
Analysis Method ◽  
Purchasing Decisions ◽  
Independent Variables ◽  
Independent Variable ◽  
The City ◽  
Positive Effect

The bath soap market is constantly changing and competition is getting tougher with the emergence of bath soaps that have a clearer positioning, such as beauty soap, whitening soap, family soap to health soap. Increasing lifestyles of people in Indonesia and changing habits where bathing is no longer just using soap, but by adding fragrance and comfort when wearing it. The higher purchasing power of consumers for a product encourages companies to further improve the quality of their products. The purpose of this study is to analyze the effect of Integrated Promotion and Positioning Excellence on Purchasing Decisions in Lux Bath Soap. The population in this study are consumers in the city of Ambon who use Lux bath soap. The sample in this studywere 100 people who bought lux bath soap taken by purposive sampling. The data collection is done by using a questionnaire. The data analysis method used is SPSS version 16.The results of multiple regression analysis namely Y = 0.501 X1 + 0.218 X2 The most influential independent variable on the dependent variable is the integrated Promotion variable (0.501), followed by the Positioning Excellence variable (0.218). T test results show that all independent variables, namely (integrated promotion and positioning superiority) have a significant positive effect on the dependent variable (purchasing decisions) where all independent variables obtain a t value greater than t table with a sig level of less than 0.05. And the coefficient of determination (R Square) obtained by 0.309 this means that 30.9% of purchasing decisions can be explained by integrated promotion variables and positioning excellence, while the remaining 69.1% is influenced by other variables not examined in this study. Keywords: Integrated Promotion, Positioning Excellence, Purchasing Decisions

scholarly journals ANALYSIS OF THE FACTORS AFFECTING THE QUALITY OF THE CHEMICAL AND MICROBIOLOGICAL DRINKING WATER AT THE DEPOT DRINKING WATER REFILL TULUNGAGUNG DISTRICT

2018 ◽  
Vol 1 (1) ◽  
pp. 104-112
Author(s):  
Eka Puspitasari
Keyword(s):  
Drinking Water ◽  
Microbiological Quality ◽  
Sampling Technique ◽  
Survey Method ◽  
Test Results ◽  
Raw Water ◽  
Cross Sectional ◽  
Regression Test ◽  
Independent Variable

Refill drinking water Depot is an industry that does the processing of the raw water into drinking water and sell directly to the consumer. Mn metal and bacterial Coliform is an indicator of refill drinking water polluters. This research aims to find the factors influencing the quality of Microbiology and chemistry at the depot drinking water drinking water refill Tulungagung district. Research using survey method with Cross sectional approach is analytical. The sampling technique used was Simple Random Sampling with a sample of 89 depot drinking water refill. Technique of data analysis using Regression and Logistic regression test linear. Independent variable examined was the source of raw water, the depot operator hygiene of drinking water, hygiene, sanitation, which covers three aspects namely sanitary location, building and facility sanitation. The results showed from 89 depot examined known as much as 79.8% sanitation facilities are not qualified, the value of the MPN 59.55% of eligible and levels of Mn 100% qualified. From Regresilogistik test results between independent variable with the value of the MPN indicate significance of 0.008 < (α = 0.05) on sanitation facilities are variable. This means there are influences between facilities sanitation microbiological quality of drinking water. On Linear regression test results between independent variable with the value obtained significance levels of Mn 0.47 > ((α = 0.05) which means no influence between independent variables with the chemical quality of drinking water. The lack of sanitation facilities increases the potential for bacterial contamination through the operator. Therefore the availability of on-site sanitation depot drinking water is a major factor that affects the quality of drinking water microbiology refills.

scholarly journals Quality of Life in The Elderly Viewed from Hope, Friend Support, and Family Support

2020 ◽  
Vol 9 (2) ◽  
pp. 1670-1675
Author(s):  
I Ketut Andika Priastana ◽  
Dwi Prima Hanis Kusumaningtiyas
Keyword(s):  
Quality Of Life ◽  
Family Support ◽  
The Elderly ◽  
Total Sample ◽  
P Value ◽  
Test Results ◽  
Chi Square ◽  
Independent Variable ◽  
Logistic Regression Test

The population in this study is the elderly who live in Banjar Tengah, Negara District, Jembrana Regency, Bali. The sample used in this study was selected using purposive sampling method, with a total sample of 62 people who met the criteria. The results showed that there was a significant effect simultaneously of hope, support from friends, and family support on the quality of life of the elderly because the p value Chi-Square was 0,000 where <α 0.05 or the value of Chi-Square Count 70.870> Chi-Square table. 7,815. The logistic regression test results show that the Nagelkerke R Square value is 0.908 and Cox & Snell R Square is 0.681, which indicates that the ability of the independent variable to explain the dependent variable is 0.908 or 90.8% and there are 100% - 90.8% = 9,2% other factors outside the model that explain the dependent variable

scholarly journals Impact of Service Quality and Application of Sharia Principles on Consumer Intention of Sharia Hotel

2021 ◽  
Vol 3 (2) ◽  
pp. 165-178
Author(s):  
Al Haq Kamal ◽  
Abdul Salam ◽  
Ageng Asmara Sani ◽  
Prabumadya Brojosetami ◽  
Tyagita Dianingtyas Sudibyo
Keyword(s):  
Quality Of Service ◽  
Descriptive Analysis ◽  
Simple Random Sampling ◽  
Primary Data ◽  
Test Results ◽  
Analysis Techniques ◽  
Dependent Variables ◽  
Independent Variable ◽  
Regression Tests

This research aims to measure and analyze the influence of quality of service and the application of sharia principles to consumers at Syariah Hotel Limaran. The data used in this study is primary data. Although the method of data collection used is simple random sampling with a sample of 60 customers of Syariah Limaran hotel, this research also uses observation, questionnaires, and documentation. The data analysis techniques in this study are descriptive analysis tests, multiple linear regression tests, partial (t) tests, simultaneous tests (f), and determinant coefficients (r2). Results obtained based on t and f test results produce a significant value of 0.05. Then the R Square value of 0.461 indicates that an independent variable can affect dependent variables by 46.10%. While other variables outside this study explain the remaining 53.90%. The study concludes that the quality of service and the application of sharia principles affect consumers' intention in Sharia hotels.

scholarly journals HUBUNGAN STATUS GIZI DENGAN PERKEMBANGAN ANAK USIA 3-5 TAHUN DI PENDIDIKAN ANAK USIA DINI (PAUD) MIDANUTTA’LIM DESA MAYANGAN KECAMATAN JOGOROTO KABUPATEN JOMBANG

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
Hastuti Putri Ramadhani ◽  
Mamik Ratnawati ◽  
Hj.Yuliati Alie
Keyword(s):  
Nutritional Status ◽  
Growth And Development ◽  
Analysis Data ◽  
Preschool Age ◽  
Test Results ◽  
Cross Sectional ◽  
Spearman Rank ◽  
Independent Variable ◽  
Nutritional Status Of Children

Nutrition is one determinant the quality of human resources, because undernourished will might cause failure growth and development on child. On child a preschool are the group that need attention will the nutrition, as they are in the growth and development. More than 50 % of the children was suffering from a development. The purpose of research to know nutritional status of relations with children growth a preschool age 3 to 5 years in Midanutta’lim Mayangan Village Subdistrict Jogoroto District Jombang. Method : The research use analytic correlation design with cross sectional approached. Population is all children aged 3 to 5 years in PAUD Midanutta’lim Mayangan Village Subdistrict Jogoroto District Jombang with 70 children, the sample as many as 35 children. Technique sampling used purposive sampling, the independent variable is status nutrition and dependent variable is the development of baby a preschool age 3 to 5 years. An instrument use Z-scor and KPSP. Data mixed with editing, coding, scoring, tabulating, analysis data using the spearman rank. Result and discussion : Based on the research done got that the majority of respondents (74.3%) a nutritional status of good, most respondents (68.6%) undergo development children appropriate, test results spearman rank got that α count smaller than α table that 0,001 < 0,05 which means H1 received and value correlation coefficient 0,557. The conclusion are powerful relationship between nutritional status of children growth preschool age 3 to 5 years . Based on the results of research is expected parents paying more attention to the nutritional intake in children especially at the age of a preschool because in this day and age that are the group vulnerable to nutrition problems will have an influence to the development of the baby.

scholarly journals PENGARUH LOKASI DAN KUALITAS PELAYANAN ISLAMI TERHADAP KEPUTUSAN PEMBELIAN KONSUMEN DI UNIT TOKO AUSATH GROSIR SEMBAKO KOPPONTREN AUSATH BLOKAGUNG

2020 ◽  
Vol 1 (1) ◽  
pp. 101
Author(s):  
Ribut Suprapto ◽  
Durrotun Nafisah
Keyword(s):  
Significant Influence ◽  
Grocery Store ◽  
Coefficient Of Determination ◽  
Purchase Decision ◽  
Test Results ◽  
Purchasing Decisions ◽  
Regression Test ◽  
Independent Variable ◽  
Unit Unit

The purpose of this study is 1) To determine the significant effect between location (X1) on purchasing decisions (Y). 2) To determine the significant influence of the quality of Islamic services on purchasing decisions (X2). 3) To find out the significant influence between location (X1) and the quality of Islamic services (X2) simultaneously or together on purchasing decisions (Y). The results of the multiple regression test obtained the coefficient price (rx1x2y) of 0.701 and the price of the coefficient of determination (rx1x2y) 2 of 49.140%. The F (rx1x2y) test results showed that the Fhitung was 13.046 and the Ftabel at the 5% level was 3.35. T test results are known that thitung shows that the figure is greater than ttabel or 13,046 > 3.35 so that there is a significant influence between the location and quality of Islamic services simultaneously on consumer purchasing decisions in Ausath Grocery Grocery Unit Unit at Ausath Blokagung Banyuwangi Regency. This means that each independent variable, namely location and quality of Islamic services, has a significant simultaneous effect on the dependent variable (consumer purchase decision) in the Ausath Grocery Store Unit of Ausath Blokagung Koppontren, Banyuwangi.

scholarly journals Influence Product Quality and Quality of Service to Customer Satisfaction ( Renter ) Photocopy Machine Brand Konica Minolta in Surabaya

2019 ◽  
Vol 2 (2) ◽  
pp. 133-136
Author(s):  
Kurniawan Agung Laksono ◽  
Elok Damayanti ◽  
I Gede Arimbawa
Keyword(s):  
Regression Analysis ◽  
Customer Satisfaction ◽  
Service Quality ◽  
Product Quality ◽  
Research Method ◽  
Quantitative Research ◽  
Test Results ◽  
Independent Variable ◽  
Variable Quality

This type of research is quantitative research, a population of 324 people from the customer (renter) photocopy machine Konica Minolta  and taken 76 people using the formula slovin sample. The research method multiple regression analysis using SPSS 21. From the test results concluded that the hypothesis 1 hypothesis can be accepted, because of the results of the t test independent variable consisted of Product Quality and Service Quality partially significant effect on the variable Customer Satisfaction. Hypothesis 2 in accordance with the basis for a decision in the f test it can be concluded also that the variable quality of product and service quality variables simultaneously influence customer satisfaction.

scholarly journals Pengaruh religiusitas dan dukungan sosial terhadap kualitas hidup penderita kanker serviks

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Megawaty Megawaty
Keyword(s):  
Quality Of Life ◽  
Hypothesis Test ◽  
Regression Coefficients ◽  
Test Results ◽  
Independent Variables ◽  
Independent Variable ◽  
Significant Regression

The results showed that there was a significant effect of variables religiosity andsocial support on quality of life. The test results were minor hypothesis test thesignificance of each dimension of the independent variable on quality of life, thereare three significant regression coefficients, including experience, conviction andconsequences. The results showed the proportion of the variance of quality of lifefor all the independent variables explained 31.6% and 68.4% is influenced byother variables outside the research.

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