**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**1147

# World Academy of Science, Engineering and Technology

## [Mathematical and Computational Sciences]

### Online ISSN : 1307-6892

##### 1147 Application of Logistics Regression Model to Ascertain the Determinants of Food Security among Households in Maiduguri, Metropolis, Borno State, Nigeria

**Authors:**
Abdullahi Yahaya Musa,
Harun Rann Bakari

**Abstract:**

**Keywords:**
internally displaced persons,
food security,
coping strategies,
descriptive statistics,
logistics regression model,
odd ratio

##### 1146 Category-Base Theory of the Optimum Signal Approximation Clarifying the Importance of Parallel Worlds in the Recognition of Human and Application to Secure Signal Communication with Feedback

**Authors:**
Takuro Kida,
Yuichi Kida

**Abstract:**

**Keywords:**
signal prediction,
pseudo inverse matrix,
artificial intelligence,
conditional optimization

##### 1145 Stability of Solutions of Semidiscrete Stochastic Systems

**Authors:**
Ramazan Kadiev,
Arkadi Ponossov

**Abstract:**

**Keywords:**
abrupt changes,
exponential stability,
regularization,
stochastic noises

##### 1144 Experimental Evaluation of Succinct Ternary Tree

**Authors:**
Dmitriy Kuptsov

**Abstract:**

**Keywords:**
algorithms,
data structures,
succinct ternary tree,
per- formance evaluation

##### 1143 A Comprehensive Procedure of Spatial Panel Modelling with R, A Study of Agricultural Productivity Growth of the 38 East Java’s Regencies/Municipalities

**Authors:**
Rahma Fitriani,
Zerlita Fahdha Pusdiktasari,
Herman Cahyo Diartho

**Abstract:**

**Keywords:**
spatial panel,
specification,
splm,
agricultural productivity growth

##### 1142 A Quantum Leap: Developing Quantum Semi-Structured Complex Numbers to Solve the “Division by Zero” Problem

**Authors:**
Peter Jean-Paul,
Shanaz Wahid

**Abstract:**

**Keywords:**
division by zero,
semi-structured complex numbers,
quantum mechanics,
Hilbert space,
Euclidean space

##### 1141 Sweepline Algorithm for Voronoi Diagram of Polygonal Sites

**Authors:**
Dmitry A. Koptelov,
Leonid M. Mestetskiy

**Abstract:**

**Keywords:**
voronoi diagram,
sweepline,
polygon sites,
fortunes' algorithm,
segment sites

##### 1140 Non-Autonomous Seasonal Variation Model for Vector-Borne Disease Transferral in Kampala of Uganda

**Authors:**
Benjamin Aina Peter,
Amos Wale Ogunsola

**Abstract:**

**Keywords:**
seasonal variation,
indoor residual spray,
efficacy of spray,
temperature-dependent model

##### 1139 Modelling Structural Breaks in Stock Price Time Series Using Stochastic Differential Equations

**Authors:**
Daniil Karzanov

**Abstract:**

**Keywords:**
stock market,
earnings reports,
financial time series,
structural breaks,
stochastic differential equations

##### 1138 Analysis and Prediction of COVID-19 by Using Recurrent LSTM Neural Network Model in Machine Learning

**Authors:**
Grienggrai Rajchakit

**Abstract:**

**Keywords:**
COVID-19,
coronavirus,
KAGGLE,
LSTM neural network,
machine learning

##### 1137 Point Estimation for the Type II Generalized Logistic Distribution Based on Progressively Censored Data

**Authors:**
Rana Rimawi,
Ayman Baklizi

**Abstract:**

**Keywords:**
point estimation,
type II generalized logistic distribution,
progressive censoring,
maximum likelihood estimation

##### 1136 On Boundary Values of Hardy Space Banach Space-Valued Functions

**Authors:**
Irina Peterburgsky

**Abstract:**

**Keywords:**
hardy spaces,
Banach space-valued function,
boundary values,
Pettis integral

##### 1135 Efficient Principal Components Estimation of Large Factor Models

**Authors:**
Rachida Ouysse

**Abstract:**

**Keywords:**
high dimensionality,
unknown factors,
principal components,
cross-sectional correlation,
shrinkage regression,
regularization,
pseudo-out-of-sample forecasting

##### 1134 Study of Wake Dynamics for a Rim-Driven Thruster Based on Numerical Method

**Authors:**
Bao Liu,
Maarten Vanierschot,
Frank Buysschaert

**Abstract:**

**Keywords:**
computational fluid dynamics,
rim-driven thruster,
sliding mesh,
wake dynamics

##### 1133 Non Commutative Lᵖ Spaces as Hilbert Modules

**Authors:**
Salvatore Triolo

**Abstract:**

**Keywords:**
Gelfand-Naimark-Segal representation,
CQ*-algebras,
faithful representation,
non-commutative Lᵖ-spaces,
operator in Hilbert spaces

##### 1132 Stability Analysis of Endemic State of Modelling the Effect of Vaccination and Novel Quarantine-Adjusted Incidence on the Spread of Newcastle Disease Virus

**Authors:**
Nurudeen Oluwasola Lasisi,
Abdulkareem Afolabi Ibrahim

**Abstract:**

**Keywords:**
effective reproduction number,
endemic state,
mathematical model,
Newcastle disease virus,
novel quarantine-adjusted incidence,
stability analysis

##### 1131 Self-Organizing Maps for Exploration of Partially Observed Data and Imputation of Missing Values in the Context of the Manufacture of Aircraft Engines

**Authors:**
Sara Rejeb,
Catherine Duveau,
Tabea Rebafka

**Abstract:**

**Keywords:**
imputation method of missing data,
partially observed data,
robustness to missingness mechanism,
self-organizing maps

##### 1130 Implementation of Statistical Parameters to Form an Entropic Mathematical Models

**Authors:**
Gurcharan Singh Buttar

**Abstract:**

**Keywords:**
probability distribution,
entropy,
concavity,
symmetry,
variance,
central tendency

##### 1129 Kýklos Dimensional Geometry: Entity Specific Core Measurement System

**Authors:**
Steven D.P Moore

**Abstract:**

**Keywords:**
Kyklos,
geometry,
measurement,
celestial,
dimension

##### 1128 Bayesian Analysis of Change Point Problems Using Conditionally Specified Priors

**Authors:**
Golnaz Shahtahmassebi,
Jose Maria Sarabia

**Abstract:**

**Keywords:**
change point,
bayesian inference,
Gibbs sampler,
conditional specification,
gamma conditional distributions

##### 1127 Protein Tertiary Structure Prediction by a Multiobjective Optimization and Neural Network Approach

**Authors:**
Alexandre Barbosa de Almeida,
Telma Woerle de Lima Soares

**Abstract:**

**Keywords:**
Ab initio heuristic modeling,
multiobjective optimization,
protein structure prediction,
recurrent neural network

##### 1126 An Analytical Approach to Assess and Compare the Vulnerability Risk of Operating Systems

**Authors:**
Pubudu K. Hitigala Kaluarachchilage,
Champike Attanayake,
Sasith Rajasooriya,
Chris P. Tsokos

**Abstract:**

**Keywords:**
cybersecurity,
Markov chain,
non-parametric analysis,
vulnerability,
operating system

##### 1125 Vine Copula Structure among Yield, Price and Weather Variables for Rating Crop Insurance Premium

**Authors:**
Jiemiao Chen,
Shuoxun Xu

**Abstract:**

**Keywords:**
vine copula,
weather index,
crop insurance premium,
insurance risk management,
Monte Carlo simulation

##### 1124 Marginalized Two-Part Joint Models for Generalized Gamma Family of Distributions

**Authors:**
Mohadeseh Shojaei Shahrokhabadi,
Ding-Geng (Din) Chen

**Abstract:**

**Keywords:**
marginalized two-part model,
zero-inflated,
right-skewed,
semi-continuous,
generalized gamma

##### 1123 A Note on Decidability Structure of Rational Numbers in Different Languages

**Authors:**
Zahra Sheikhaleslami

**Abstract:**

**Keywords:**
decidability,
model theory,
quantifier elimination,
rational number

##### 1122 The Finite Element Method for Nonlinear Fredholm Integral Equation of the Second Kind

**Authors:**
Melusi Khumalo,
Anastacia Dlamini

**Abstract:**

**Keywords:**
finite element method,
Galerkin approach,
Fredholm integral equations,
nonlinear integral equations

##### 1121 Dynamic Updating of Principal Components of Model Reduction Error in Diffuse Optical Tomography

**Authors:**
Peyman Beygi,
Alireza Zirak

**Abstract:**

**Keywords:**
inverse problem,
marginalization error,
principal component,
ensemble Kalman filter

##### 1120 Sales-Based Dynamic Investment and Leverage Decisions: A Longitudinal Study

**Authors:**
Rihab Belguith,
Fathi Abid

**Abstract:**

**Keywords:**
dynamic panel,
investment,
leverage decision,
sales uncertainty

##### 1119 Stem Covers of Leibniz n-Algebras

**Authors:**
Natália Maria Rego

**Abstract:**

**Keywords:**
leibniz n-algebras,
central extensions,
Schur multiplier,
stem cover

##### 1118 A Comparative Analysis of Hyper-Parameters Using Neural Networks for E-Mail Spam Detection

**Authors:**
Syed Mahbubuz Zaman,
A. B. M. Abrar Haque,
Mehedi Hassan Nayeem,
Misbah Uddin Sagor

**Abstract:**

**Keywords:**
long short-term memory,
bidirectional long short-term memory,
gated recurrent unit,
natural language processing,
natural language processing