Analysis of decreasing squared-sum of Gram–Schmidt lengths for short lattice vectors

2017 ◽  
Vol 11 (1) ◽  
pp. 1-24 ◽  
Author(s):  
Masaya Yasuda ◽  
Kazuhiro Yokoyama ◽  
Takeshi Shimoyama ◽  
Jun Kogure ◽  
Takeshi Koshiba
Keyword(s):  
Statistical Analysis ◽  
Efficient Method ◽  
Random Sampling ◽  
Theory And Practice ◽  
Lattice Vector ◽  
Monotonically Decrease

AbstractIn 2015, Fukase and Kashiwabara proposed an efficient method to find a very short lattice vector. Their method has been applied to solve Darmstadt shortest vector problems of dimensions 134 to 150. Their method is based on Schnorr’s random sampling, but their preprocessing is different from others. It aims to decrease the sum of the squared lengths of the Gram–Schmidt vectors of a lattice basis, before executing random sampling of short lattice vectors. The effect is substantiated from their statistical analysis, and it implies that the smaller the sum becomes, the shorter sampled vectors can be. However, no guarantee is known to strictly decrease the sum. In this paper, we study Fukase–Kashiwabara’s method in both theory and practice, and give a heuristic but practical condition that the sum is strictly decreased. We believe that our condition would enable one to monotonically decrease the sum and to find a very short lattice vector in fewer steps.

The Impact of Entrepreneurial Orientation Success Factors To Muslim SME Success

2021 ◽  
Vol 12 (3) ◽  
pp. 2493-2504
Author(s):  
NadratunNafisah Abdul Wahab Et.al
Keyword(s):  
Entrepreneurial Orientation ◽  
Random Sampling ◽  
Success Factors ◽  
Simple Random Sampling ◽  
Theory And Practice ◽  
The Impact

This study presentsa research of the multidimensional entrepreneurial orientation (innovation, risk and proactive) in relation to the Muslim SME success. Thus far, past literatures shown that limited study of Muslim SME success. This study was conducted in the form of survey, with data being gathered from 122 firms (operating above 3 years) selected through simple random sampling from 2286 Muslim SME in Malaysia. The results show that innovation and proactivefactors have relationshipsto SME Muslim success. The results shed new light on the theory and practice. This finding contributes to RBV theory and to the field of Islamic entrepreneurship focusing on Muslim SME success.

scholarly journals Statistical analysis for the impact of smoking on the behavior and health of Qatari adolescents

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Abdel-Salam G. Abdel-Salam ◽  
Mahjabeen Ramzan ◽  
Zainab Siddiqui
Keyword(s):  
Statistical Analysis ◽  
Health Risks ◽  
Random Sampling ◽  
Well Being ◽  
Physical Activities ◽  
Significant Percentage ◽  
Vision 2030 ◽  
Health Objectives ◽  
The Impact ◽  
Health And Well Being

AbstractThe links between the use of tobacco and health risks are well known. Most of the younger smokers reside in Asia which includes Qatar, the focus country of this study. Cigarette smoking among children is rising at an alarming rate worldwide including Qatar. As youth make up a significant percentage of the population and to achieve the health objectives of the Qatar Vision 2030, it is essential to ensure the health and well-being of adolescents, as they are the future of Qatar. This study focuses on exploring the patterns of tobacco use and its impacts on the adolescents by conducting a survey in different schools across Qatar. The questionnaire was administered in five schools, selected by proportional random sampling. The responses were recorded from the sample for general questions regarding interest in physical activities, relationship with family and friends, mental satisfaction, health, academics and access to cigarettes.

scholarly journals Primary students’ conceptions of the Earth: Re-examining a fundamental research hypothesis on mental models

2018 ◽  
Vol 6 (1) ◽  
pp. 23 ◽  
Author(s):  
Julie Vaiopoulou ◽  
George Papageorgiou
Keyword(s):  
Statistical Analysis ◽  
Mental Models ◽  
Latent Class ◽  
Theoretical Perspective ◽  
Theory And Practice ◽  
Primary Students ◽  
Latent Class Analyses ◽  
The Earth ◽  
Definite Answer ◽  
Fundamental Research

Research on pupils’ conceptions of the earth has proposed certain mental models within the theoretical perspective known as coherent or theory-like knowledge. Alternatively, the fragmented knowledge hypothesis refutes the existence of such models and proposes a different perspective. Although the relevant discussion has not been converged in to a definite answer, recently, the debate between the two theories has been brought up into consideration by the advances in methodology and statistical analysis. In this paper pupils’ conceptions of the earth were analyzed by latent class analyses. Children’s ideas (N=184, grades 1st to 3rd), were investigated using a closed-ended questionnaire, which includes illustrations corresponding to certain mental models. The results showed that pupils’ conceptions of the earth are not characterized by consistency and thus they do not support the existence of coherent mental models. Implications for theory and practice are discussed.

The Effect of Teachers’ Use of Reinforcement on Learners’ Performance in English Language

2019 ◽  
Vol 1 (2) ◽  
pp. 116-129
Author(s):  
Ndegwa Grace Konyu; Dr. Lucy Wathika; Dr Josephine Khaemba
Keyword(s):  
Second Language ◽  
Second Language Acquisition ◽  
Language Acquisition ◽  
Language Learners ◽  
Random Sampling ◽  
English Language ◽  
Second Language Learners ◽  
Simple Random Sampling ◽  
Theory And Practice ◽  
Verbatim Transcript

The intention of the study was to establish the effect of teachers’ use of reinforcement on learners’ performance in English language. It was done in selected secondary schools in Nakuru town and used descriptive research design. The study was guided by Gardner and Lambert’s Socio-Educational model of second language acquisition. Stratified random sampling was employed in selecting four schools while simple random sampling was used to choose one stream in form two, three and four in each school for observation. It resulted in eight observational schedules. The study sample of 60 students in form 2-4 and 8 teachers of English was purposively selected for interviews. A total number of 353 learners were observed. The study used interviews, audio recording and Structured Observational Schedules for data collection. The data was presented in form of tables, figures and verbatim transcript excerpts used for exemplification and illustration in a qualitative explication. The findings of the study revealed that second language learners’ performance in English is greatly influenced by teachers’ use of reinforcement. Moreover, it proved that teachers of English give unguarded praises, negative statements and criticisms to English second language learners. This study is a vital contribution to the field of Second Language Acquisition theory and practice with regard to offering information and insight into reinforcement, motivation and attitude in practical language acquisition and learning in the classroom situation. These findings are useful in the improvement of second language learners’ performance in English. Teachers of English will also acquaint themselves with effective use of positive verbal reinforcement which works as a motivational force on learners’ acquisition and use of the English language.

Emotional Intelligence and Personality Traits as Predictors of Job Performance of IT Employees

2019 ◽  
pp. 1604-1619
Author(s):  
Priyam Dhani ◽  
Tanu Sharma
Keyword(s):  
Emotional Intelligence ◽  
Regression Analysis ◽  
Statistical Analysis ◽  
Data Collection ◽  
Job Performance ◽  
Personality Traits ◽  
Random Sampling ◽  
Frequency Correlation ◽  
Correlation And Regression Analysis ◽  
It Employees

The chief aim of this article is to examine the emotional intelligence (EI) and personality traits as the predictors of job performance of IT employees in India. To obtain this, the data was collected from 158 middle management employees working in Indian IT sector through random sampling method with the help of three scales such as DKEIT, JPI, and MPI. After data collection, the study carried out a different statistical analysis which includes frequency, correlation and regression analysis through SPSS 23.0 version. The study findings reported that both EI and Personality Traits impact the performance of job of IT employees, i.e. both Personality Traits and EI operate as a predictor of Job Performance of Indian IT employees. Based on which, the article gives few recommendations to future researchers.

The Margin of Appreciation

2020 ◽  
pp. 67-96
Author(s):  
Jan Zglinski
Keyword(s):  
Statistical Analysis ◽  
Theory And Practice ◽  
European Court Of Justice ◽  
Free Movement ◽  
Domestic Institutions ◽  
Factors Influencing ◽  
Court Of Justice ◽  
European Court ◽  
Number Of Factors ◽  
Margin Of Appreciation

This chapter examines the application of the margin of appreciation in free movement cases. It identifies the doctrine’s legal scope and investigates the scenarios in which the European Court of Justice defers to national authorities. A statistical analysis suggests that there is a significant gap between theory and practice, with only a small number of factors influencing the way in which the margin of appreciation is used. The results show how much regulatory autonomy Member States retain in free movement law. They also expose which concerns the Court prioritizes in its jurisprudence and which decisions it feels safe, or forced, to delegate to domestic institutions.

Emotional Intelligence and Personality Traits as Predictors of Job Performance of IT Employees

2018 ◽  
Vol 9 (3) ◽  
pp. 70-83
Author(s):  
Priyam Dhani ◽  
Tanu Sharma
Keyword(s):  
Emotional Intelligence ◽  
Regression Analysis ◽  
Statistical Analysis ◽  
Job Performance ◽  
Personality Traits ◽  
Random Sampling ◽  
Sampling Method ◽  
Middle Management ◽  
Correlation And Regression Analysis ◽  
It Employees

The chief aim of this article is to examine the emotional intelligence (EI) and personality traits as the predictors of job performance of IT employees in India. To obtain this, the data was collected from 158 middle management employees working in Indian IT sector through random sampling method with the help of three scales such as DKEIT, JPI, and MPI. After data collection, the study carried out a different statistical analysis which includes frequency, correlation and regression analysis through SPSS 23.0 version. The study findings reported that both EI and Personality Traits impact the performance of job of IT employees, i.e. both Personality Traits and EI operate as a predictor of Job Performance of Indian IT employees. Based on which, the article gives few recommendations to future researchers.

scholarly journals Studi Tentang Pengaruh Pendidikan Kewirausahaan Terhadap Minat Berwirausaha Mahasiswa Universitas Bangka Belitung

2020 ◽  
Vol 3 (1) ◽  
pp. 127-139
Author(s):  
Rizki Zulfickar ◽  
Ade Sobandi
Keyword(s):  
Data Analysis ◽  
Statistical Analysis ◽  
Data Collection ◽  
Random Sampling ◽  
Descriptive Analysis ◽  
Entrepreneurship Education ◽  
Regression Analyses ◽  
Entrepreneurial Education ◽  
The University ◽  
Descriptive Statistical Analysis

Abstrak: Tujuan penelitian ingin mengetahui pengaruh pendidikan kewirausahaan terhadap minat berwirausaha mahasiswa Universitas Bangka Belitung. Sampel penelitian ini berjumlah 321 responden. Teknik pengambilan sampel menggunakan proportional random sampling. Teknik pengumpulan data menggunakan kuesioner. Analisis data menggunakan analisis statistik deskriptif dan analisis regresi berganda. Hasil analisis deskriptif diperoleh pada indikator plan sebesar 4,11, Indikator preference sebesar 4,00, Sedangkan indikator desire yaitu sebesar 3,39 bahwa minat berwirausaha mahasiswa dalam kategori tinggi,. Pengaruh pendidikan kewirausahaan dalam kategori efektif. Hasil penelitian menunjukkan pendidikan kewirausahaan berpengaruh secara simultan terhadap minat berwirausaha. Simpulan penelitian menyatakan bahwa semakin efektif pendidikan kewirausahaan yang diberikan, maka semakin tinggi juga minat berwirausaha mahasiswa Universitas Bangka Belitung. Abstract: The aims of study is to know the influence of entrepreneurship education on the entrepreneurial interest of Bangka Belitung University students.The sample of this study was 321 respondents. Using proportional random sampling for technique sampling. Data collection techniques using questionnaires. Data analysis uses descriptive statistical analysis and multiple regression analyses. The results of the descriptive analysis are obtained in the plan indicator of 4.11, preference indicator of 4.00, while the desire indicator is 3.39 that the interest of entrepreneurial students in the high category. The influence of entrepreneurship education in effective category. The results show an entrepreneurial education that is simultaneously influential towards entrepreneurial interest. The more effective research is the entrepreneurial education, the higher the interest of students from the University of Bangka Belitung.

scholarly journals Enhancing students' learning motivation through bibliocounseling technique

2019 ◽  
Vol 4 (1) ◽  
pp. 23
Author(s):  
Eva Kartika wulan Sari
Keyword(s):  
High School ◽  
Experimental Study ◽  
Statistical Analysis ◽  
Random Sampling ◽  
Descriptive Analysis ◽  
Learning Motivation ◽  
Wilcoxon Test ◽  
Post Test ◽  
Motivation Scale ◽  
11Th Grade

The present study aimed at enhancing students' learning motivation using bibliocounseling technique. This was a pre-experimental study with one group pretest-posttest design. The subjects of the study were 11th grade students of a Senior High School. They were selected through purposive random sampling. The instrument of the study consisted of learning motivation scale and observation guide. The data of the study were analyzed by descriptive analysis and Wilcoxon test. The result of the study showed that there was a difference between the score of pre-test and post-test, there was a 37% increase from the category of intermediate into high. While, the result of statistical analysis on the Wilcoxon test exhibited the significance value of 0.011 < 0.05, in other words, there is differences between pre- and post- treatment, therefore, the proposed hypothesis was accepted. The result of the study showed that the subjects experienced learning motivation improvement because he/she implemented bibliocounseling. Therefore, it could be concluded that bibliocounseling technique is effective to improve students’ learning motivation.

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