scholarly journals Pattern Recognition: Effectiveness of Teaching Girls Aged 14 the Cartwheel Authors

2021 ◽  
Vol 2 (3) ◽  
pp. 140-145
Author(s):  
Inna Kalistratova ◽  
Oleg Khudolii
Keyword(s):  
Pattern Recognition ◽  
Discriminant Analysis ◽  
Physical Education ◽  
Research Methods ◽  
Rest Interval ◽  
The Third ◽  
Second Mode ◽  
Study Participants ◽  
The Impact

Purpose. To determine the impact of exercise modes on the effectiveness of teaching girls aged 14 the cartwheel. Materials and methods. The study participants were 20 girls aged 14. The children and their parents were fully informed about all the features of the study and gave their consent to participate in the experiment. To solve the tasks set, the following research methods were used: study and analysis of scientific and methodological literature; pedagogical observation, timing of training tasks; pedagogical experiment, methods of mathematical statistics, discriminant analysis. Results. The study found that statistically significant differences in the number of repetitions were observed in performing all series of training tasks, except the third one (p < 0.05). The girls aged 14 who used the first mode (6 sets 1 time each with a rest interval of 60 s) needed fewer repetitions to master the movements of the first, second, fourth, fifth, and sixth series of tasks (p < 0.05). The girls aged 14 who used the second mode (6 sets 2 times each with a rest interval of 60 s) needed fewer repetitions to master the movements of the third series of tasks (p < 0.05). Conclusions. Discriminant analysis made it possible to determine the impact of the number of repetitions on the effectiveness of developing the cartwheel skill in girls aged 14. Based on the analysis of group centroids, it was found that exercise modes significantly influence the cartwheel skill development in girls aged 14 during physical education classes. The results of classification of the groups show that 100.0 % of the original grouped cases were classified correctly.

scholarly journals Pattern Recognition: Effectiveness of Teaching Boys Aged 15 a Cartwheel

2021 ◽  
Vol 2 (3) ◽  
pp. 105-110
Author(s):  
Dmytro Ivanov ◽  
Olha Ivashchenko ◽  
Pavol Bartík
Keyword(s):  
Pattern Recognition ◽  
Discriminant Analysis ◽  
Motor Skills ◽  
Significant Influence ◽  
Group Classification ◽  
Skills Development ◽  
Rest Interval ◽  
Movement Performance ◽  
Study Participants ◽  
The Impact

The purpose of the study was to determine the impact of the number of repetitions on the effectiveness of teaching boys aged 15 a cartwheel. Materials and methods. The study participants were 20 boys aged 15. The children and their parents were fully informed about all the features of the study and gave their consent to participate in the experiment. To solve the tasks set, the following research methods were used: study and analysis of scientific and methodological literature; pedagogical observation, timing of trainingtasks; pedagogical experiment, methods of mathematical statistics, discriminant analysis. Results. The assumption was made about a significant influence of the modes of alternating exercise repetitions and the rest interval on the effectiveness of motor skills development in boys aged 15. The study found that 6 sets 1 time each with a rest interval of 60 s are more effective than 6 sets 2 times each with a rest interval of 60 s when teaching the ability to assess movement performance by time (p < 0.001). And with the first exercise mode, fewer repetitions are needed to master the entire cartwheel. This is due to the fact that differentiation of time characteristics requires immediate information about the movement performance after each repetition. Conclusions. Based on the analysis of group centroids, it was found that 6 repetitions of the exercise (6 sets 1 time each with a rest interval of 60 s) significantly influence the cartwheel skill development in boys aged 15 during physical education classes. The results of group classification show that 95.0% of the original grouped observations were classified correctly.

scholarly journals Pattern Recognition: Modes of Developing Motor Skills of Acrobatic Exercises in Boys Aged 14

2021 ◽  
Vol 2 (1) ◽  
pp. 41-46
Author(s):  
Andrii Bezzub ◽  
Oleg Khudolii ◽  
Radosław Muszkieta
Keyword(s):  
Pattern Recognition ◽  
Discriminant Analysis ◽  
Motor Skills ◽  
Significant Influence ◽  
Group Classification ◽  
Skills Development ◽  
Rest Interval ◽  
Fourth Series ◽  
Study Participants ◽  
The Impact

The purpose of the study was to determine the impact of exercise modes on the effectiveness of teaching boys aged 14 a cartwheel. Materials and methods. The study participants were 20 boys aged 14. The children and their parents were fully informed about all the features of the study and gave their consent to participate in the experiment. To solve the tasks set, the following research methods were used: study and analysis of scientific and methodological literature; pedagogical observation, timing of training tasks; pedagogical experiment, methods of mathematical statistics, discriminant analysis. Results. The assumption was made about a significant influence of the modes of alternating exercise repetitions and the rest interval on the effectiveness of motor skills development in boys aged 14. The study found that the mode of 6 sets 2 times each with a rest interval of 60 s is more effective than the mode of 6 sets 1 time each with a rest interval of 60 s when teaching the first, second, and fourth series of tasks (p < 0.05). The mode of 6 sets 1 time each with a rest interval of 60 s is more effective when teaching the fifth and sixth series of tasks (p < 0.05). Conclusions. Discriminant analysis made it possible to determine the impact of the number of repetitions on the effectiveness of developing the cartwheel skill in boys aged 14. Based on the analysis of group centroids, it was found that exercise modes significantly influence the cartwheel skill development in boys aged 14 during physical education classes. The results of group classification show that 100 % of the original grouped observations were classified correctly.

scholarly journals Pattern Recognition: Effectiveness of Teaching Girls Aged 15 Acrobatic Exercises

2021 ◽  
Vol 2 (3) ◽  
pp. 134-139
Author(s):  
Davyd Medko ◽  
Oleg Khudolii
Keyword(s):  
Discriminant Analysis ◽  
Motor Skills ◽  
Skills Development ◽  
Rest Interval ◽  
Motor Abilities ◽  
Second Mode ◽  
Fourth Series ◽  
Study Participants ◽  
The Impact ◽  
Muscular Effort

The purpose of the study was to determine the impact of exercise modes on the effectiveness of teaching girls aged 15 a cartwheel. Materials and methods. The study participants were 20 girls aged 15. The children and their parents were fully informed about all the features of the study and gave their consent to participate in the experiment. To solve the tasks set, the following research methods were used: study and analysis of scientific and methodological literature; pedagogical observation, timing of training tasks; pedagogical experiment, methods of mathematical statistics, discriminant analysis. Results. The analysis of averages shows that statistically significant differences in the number of repetitions are observed in performing series of training tasks 1, 2, and 4 (p < 0.05). The girls aged 15 who use the first mode (6 sets 1 time each with a rest interval of 60 s) need fewer repetitions to master the movements of the first (exercises to develop motor abilities) and the second (exercises to master starting and ending positions) series of tasks. The girls who use the second mode (6 sets 2 times each with a rest interval of 60 s) need fewer repetitions to master the movements of the fourth series of tasks (ability to assess movements in space, by time and muscular effort) (p < 0.05). Conclusions. Discriminant analysis made it possible to determine the impact of the number of repetitions on the effectiveness of developing the cartwheel skill in girls aged 15. During motor skills development, both the first and the second variants of exercise modes and rest intervals can be used. For series of tasks 1 and 2, it is advisable to use 6 sets 1 time each with a rest interval of 60 s; for series of tasks 3, 5, and 6 – 6 sets 1 time each with a rest interval of 60 s or 6 sets 2 times each with a rest interval of 60 s; for series 4 – 6 sets 2 times each with a rest interval of 60 s.

Strength abilities: pattern recognition method in the management of the cumulative effect of strength loads in 8-year-old boys

2021 ◽  
Vol 25 (4) ◽  
pp. 253-260
Author(s):  
Olha Ivashchenko ◽  
Oleg Khudolii ◽  
Wladyslaw Jagiello
Keyword(s):  
Pattern Recognition ◽  
Discriminant Analysis ◽  
Strength Training ◽  
Cumulative Effect ◽  
Training Effect ◽  
Pattern Recognition Method ◽  
Recognition Method ◽  
The Third ◽  
Strength Exercises ◽  
The Impact

Background and Study Aim. The purpose of the study was to determine the peculiarities of using pattern recognition method in the management of the cumulative effect of strength loads in 8-year-old boys. Materials and methods. The study participants were 48 boys aged 8. The experiment was conducted using a 22 factorial design. The study materials were processed by the IBM SPSS 22 statistical analysis program. Discriminant analysis was performed. The study examined the impact of four variants of strength load on the formation of the cumulative training effect of three, six, nine, and twelve classes in 8-year-old boys. Results. The discriminant analysis provided information about the impact of four orthogonal variants of strength loads on the formation of the cumulative training effect of strength exercises of three, six, nine, and twelve classes in 8-year-old boys. The obtained data make it possible to choose a load mode at each step of the CTE formation and to manage schoolchildren’s strength training. Conclusions. The verification of the obtained discriminant functions shows their high discriminative ability and value in interpretation with respect to the general population (p < 0.05). It was found that the formation of the CTE of three classes is most influenced by the third load variant, six classes – by the third load variant, nine classes – the third load variant, twelve classes – the first load variant. The discriminant function structure coefficients made it possible to identify the factor structure of the CTE of 3, 6, 9, 12 classes, to find that the CTE3, CTE6 are associated with the work at the first place “Exercises to strengthen arm muscles”, the CTE9, CTE12 – with the work at the third (“Exercises to strengthen back muscles”) and the fourth (“Exercises to strengthen leg muscles”) places. The CTE of three, six, nine, and twelve classes depends on the modes of strength exercises and has different focuses. The CTE3 – speed and strength focus; CTE6, 9 – comprehensive focus; CTE12 – explosive-strength focus. The obtained values of centroids for the CTE of 3, 6, 9, 12 classes enable the management of schoolchildren’s strength training.

scholarly journals Pattern Recognition: Impact of Exercises Modes on Developing a Small Ball Throwing Skill in Boys Aged 8

2021 ◽  
Vol 21 (1) ◽  
pp. 77-83
Author(s):  
Sergii Iermakov ◽  
Olha Ivashchenko ◽  
Oleg Khudolii ◽  
Sergii Chernenko ◽  
Viktoriia Veremeenko ◽  
...  
Keyword(s):  
Discriminant Analysis ◽  
Motor Skills ◽  
Prognostic Model ◽  
Rest Interval ◽  
Small Ball ◽  
Study Materials ◽  
Group 12 ◽  
Study Participants ◽  
The Impact ◽  
Statistical Analysis Software

The purpose of the study was to determine the impact of exercises modes on developing a small ball throwing skill in boys aged 8.  Materials and methods. The study participants were 21 boys aged 8, who were randomly divided into three groups of 7 people. The children and their parents were fully informed about all the features of the study and gave their consent to participate in the experiment. The study examined the influence of the number of repetitions on the effectiveness of teaching boys aged 8 throwing a small ball at a target. A pedagogical experiment examined the influence of 6, 12, and 18 repetitions with a 60-second rest interval on the increase in the level of proficiency in exercises of boys aged 8. In the first group, the boys repeated the task 6 times with a rest interval of 60 s, in the second group – 12 times with a rest interval of 60 s, in the third group 18 times with a rest interval of 60 s. When teaching throwing exercises during the class, the study evaluated the level of proficiency by the alternative method (“performed”, “failed”) and calculated the probability of exercise performance (p = n/m, where n is the number of successful attempts, m is the total number of attempts).  In teaching boys aged 8, the method of algorithmic instructions was used. The next exercise started after three successful attempts. Throwing a ball at a vertical target was taught. The study materials were processed by the IBM SPSS 20 statistical analysis software. During discriminant analysis, a prognostic model for group membership was created.  Results. Discriminant analysis made it possible to determine the impact of the number of repetitions on the effectiveness of developing the skills of throwing a small ball at a target; answer the question as to how significantly the modes of repetitions differ by the effectiveness of motor skills development, what class the object belongs to based on the values of discriminant variables. Conclusions. Based on the analysis of group centroids, it was found that in boys aged 8, six repetitions of the exercise (6 sets one time with a rest interval of 60 s) significantly influence the increase in the level of proficiency in exercises during physical education lessons. The results of group classification show that 85.7% of the original grouped observations were classified correctly. 

scholarly journals Discriminant Analysis: Impact of the Number of Repetitions on the Effectiveness of Teaching Boys Aged 7 Throwing a Small Ball

2021 ◽  
Vol 2 (2) ◽  
pp. 75-81
Author(s):  
Sergii Iermakov ◽  
Oleg Khudolii ◽  
Denys Chupikhin
Keyword(s):  
Discriminant Analysis ◽  
Motor Skills ◽  
Prognostic Model ◽  
Rest Interval ◽  
Small Ball ◽  
Study Materials ◽  
Group 12 ◽  
Study Participants ◽  
The Impact ◽  
Statistical Analysis Software

The aim of the study was to determine the impact of the number of repetitions on the effectiveness of teaching boys aged 7 throwing a small ball. Materials and methods. The study participants were 27 boys aged 7, who were randomly divided into three groups of 9 people each. The children and their parents were informed about all the features of the study and gave their consent to participate in the experiment. The study examined the impact of the number of repetitions on the effectiveness of teaching boys aged 7 throwing a small ball at a target. A pedagogical experiment studied the impact of 6, 12, and 18 repetitions with a 60-second rest interval on the increase in the level of proficiency in exercises of boys aged 7. In the first group, the boys repeated the task 6 times with a rest interval of 60 s, in the second group – 12 times with a rest interval of 60 s, in the third group 18 times with a rest interval of 60 s. When teaching throwing exercises during the class, the study assessed the level of proficiency by the alternative method (“performed”, “failed”) and calculated the probability of exercise performance (p = n/m, where n is the number of successful attempts, m is the total number of attempts). In teaching boys aged 7, the method of algorithmic instructions was used. The next exercise started after three successful attempts. Throwing a ball at a vertical target was taught. The study materials were processed by the IBM SPSS 20 statistical analysis software. During discriminant analysis, a prognostic model for group membership was created. Results. Discriminant analysis made it possible to determine the impact of the number of repetitions on the effectiveness of developing the skills of throwing a small ball at a target; to answer the question as to how significantly the modes of repetition differ by the effectiveness of motor skills development, to which class the object belongs based on the values of discriminant variables. Conclusions. Based on the analysis of group centroids, it was found that 12 repetitions of the exercise (6 sets 2 time each with a rest interval of 60 s) significantly influence the increase in the level of proficiency in physical education classes. The results of group classification show that 94.4% of the original grouped observations were classified correctly.

scholarly journals Minimization of the Line Resistance Impact on Memdiode-Based Simulations of Multilayer Perceptron Arrays Applied to Pattern Recognition

2021 ◽  
Vol 11 (1) ◽  
pp. 9
Author(s):  
Fernando Leonel Aguirre ◽  
Nicolás M. Gomez ◽  
Sebastián Matías Pazos ◽  
Félix Palumbo ◽  
Jordi Suñé ◽  
...  
Keyword(s):  
Pattern Recognition ◽  
Ex Situ ◽  
Multilayer Perceptrons ◽  
Spice Simulation ◽  
Large Dataset ◽  
High Line ◽  
Calibration Algorithm ◽  
The Impact ◽  
Line Resistance

In this paper, we extend the application of the Quasi-Static Memdiode model to the realistic SPICE simulation of memristor-based single (SLPs) and multilayer perceptrons (MLPs) intended for large dataset pattern recognition. By considering ex-situ training and the classification of the hand-written characters of the MNIST database, we evaluate the degradation of the inference accuracy due to the interconnection resistances for MLPs involving up to three hidden neural layers. Two approaches to reduce the impact of the line resistance are considered and implemented in our simulations, they are the inclusion of an iterative calibration algorithm and the partitioning of the synaptic layers into smaller blocks. The obtained results indicate that MLPs are more sensitive to the line resistance effect than SLPs and that partitioning is the most effective way to minimize the impact of high line resistance values.

Motor Oil Classification Using Color Histograms and Pattern Recognition Techniques

2018 ◽  
Vol 101 (6) ◽  
pp. 1967-1976 ◽  
Author(s):  
Shiva Ahmadi ◽  
Ahmad Mani-Varnosfaderani ◽  
Biuck Habibi
Keyword(s):  
Pattern Recognition ◽  
Discriminant Analysis ◽  
Classification Problem ◽  
Classification Model ◽  
Motor Oil ◽  
Pattern Recognition Techniques ◽  
Color Histograms ◽  
Different Types ◽  
Motor Oils

Abstract Motor oil classification is important for quality control and the identification of oil adulteration. In this work, we propose a simple, rapid, inexpensive and nondestructive approach based on image analysis and pattern recognition techniques for the classification of nine different types of motor oils according to their corresponding color histograms. For this, we applied color histogram in different color spaces such as red green blue (RGB), grayscale, and hue saturation intensity (HSI) in order to extract features that can help with the classification procedure. These color histograms and their combinations were used as input for model development and then were statistically evaluated by using linear discriminant analysis (LDA), quadratic discriminant analysis (QDA), and support vector machine (SVM) techniques. Here, two common solutions for solving a multiclass classification problem were applied: (1) transformation to binary classification problem using a one-against-all (OAA) approach and (2) extension from binary classifiers to a single globally optimized multilabel classification model. In the OAA strategy, LDA, QDA, and SVM reached up to 97% in terms of accuracy, sensitivity, and specificity for both the training and test sets. In extension from binary case, despite good performances by the SVM classification model, QDA and LDA provided better results up to 92% for RGB-grayscale-HSI color histograms and up to 93% for the HSI color map, respectively. In order to reduce the numbers of independent variables for modeling, a principle component analysis algorithm was used. Our results suggest that the proposed method is promising for the identification and classification of different types of motor oils.

Classification of extra virgin olive oil and verification of adulteration using digital images and discriminant analysis

2015 ◽  
Vol 7 (20) ◽  
pp. 8839-8846 ◽  
Author(s):  
Karla Danielle Tavares de Melo Milanez ◽  
Márcio José Coelho Pontes
Keyword(s):  
Pattern Recognition ◽  
Discriminant Analysis ◽  
Soybean Oil ◽  
Olive Oil ◽  
Digital Images ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Pattern Recognition Methods

This work proposes a new methodology based on digital images and supervised pattern recognition methods for the classification of extra virgin olive oil (EVOO) samples with respect to brand (A, B and C) and verification of adulteration with soybean oil.

scholarly journals Impact of the introduction of the active follow-up care of the third stage of childbirth in the prevention of delivery hemorrhage in the obstetrical gynecology department

2021 ◽  
Vol 11 (2) ◽  
pp. 227-236
Author(s):  
Jeremie Pagnol Bille Bonga ◽  
Michele Corneille Matchim Kamdem ◽  
Leila Sandra Nnanga ◽  
Ghislain François Eyimi Abessolo ◽  
Marcellin Ndoe Guiaro
Keyword(s):  
Data Collection ◽  
Regional Hospital ◽  
Prospective Data ◽  
The Third ◽  
Third Stage ◽  
Follow Up Care ◽  
Before And After ◽  
Study Participants ◽  
The Impact

Background: The majority of pregnancies and births proceed without complications. However, all pregnancies present risks of complications that could endanger the maternal prognosis. One of the most serious of these complications is the bleeding during delivery. It’s often unpredictable nature, when it occurs, involves an urgent obstetric situation which requires early diagnosis and rapid and effective follow-up. The general objective of this study was to assess the impact of the introduction of the active follow-up care of the third phase of childbirth in the prevention of bleeding during delivery with our place of study, the obstetrical gynecology department of Kindia regional hospital (Konacri Guinea), with the aim of optimizing the follow-up care of pregnant women during their childbirth. Methodology: We carried out a case-control study with both retrospective and prospective data collection on the records of participants with cases of hemorrhage during delivery in the gynecology department of the Kindia regional hospital. Retrospective data collection covered a period of 25 months before the active follow-up care of the third stage of childbirth and concerned the control group of study participants, while the one of prospective data covered a period of 19 months after the introduction of the active follow-up care of the third stage of childbirth from the 1st January 2019 to 30th September 2020 and concerned the cases group. The criteria for matching these two groups of study participants were the diagnosis and the follow-up of the delivery hemorrhage. Results: During our study period in the gynecology department of the Kindia regional hospital, we identified 223 cases of delivery hemorrhage out of 2198 deliveries before the period of introduction of the active follow-up care of the third stage. This represents an incidence of 10.14%, compared to 73 cases of delivery hemorrhage out of 2714 deliveries during the period of the active follow-up care of the third stage. For an incidence of 2.68%. We found that the hemorrhages during delivery did not spare any age group and were observed for all parities. There were common reasons for admission before and after the integration of the active follow-up care of the third stage of childbirth namely vulvar hemorrhage and physical asthenia, which were reflected in the clinical picture of all cases bleeding from the issue. In addition, headaches, dizziness, and thirst were found, but in different proportions and significantly less frequent since the introduction of the active follow-up care of the third stage of childbirth. This sign were in this context the consequence of the state of shock with respective frequencies of 46.63% and 28.76% before and after the introduction of the active follow-up care of the third stage of childbirth and anemia was present in all cases of delivery hemorrhage. Conclusion: The introduction of active follow-up care of the third stage of childbirth has reduced the frequency of delivery hemorrhages and may therefore help to reduce maternal morbidity and mortality.

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