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    تصفح Mathematics, Statistics & Physics حسب العنوان

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    السجلات المعروضة 8 -- 27 من 35

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        Exact Optimal Sample Allocation for Establishments having More Than Ten Employees in Qatar 

        SHAMSI, YASAMIN MOHAMMAD R (2020 , Professional Masters Project)
        The primary aim of this study is to select a stratified random sampling with three different techniques which is optimal allocation, proportional allocation and the new method is exact optimal allocation which is a great ...
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        Exploring the Students and Faculty Members Attitudes and Awareness about the Use Of E-Textbooks At Qatar University 

        Al-Sowadi, Noura Ali (2020 , Professional Masters Project)
        Digitalization plays a big role in world and has an effect on the tools of learning. In 2013, e-Textbooks became commonly used in most science core curricula and some literary curricula at Qatar University. However, ...
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        Exponential model for breast cancer partly interval censored data via multiple imputation 

        Umer, Salman (2021 , Master Thesis)
        The estimation problem for interval-censored data has been investigated by several authors. The application of conventional methods to interval censored data that has been considered by Lindsey and Ryan (1998) showed ...
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        FACTORS AFFECTING ACADEMIC DISCIPLINE SELECTION AND ACADEMIC PERFORMANCE OF 12TH GRADE STUDENTS IN QATAR 

        ALTAMIMI, MARYAM SAOUD (2022 , Professional Masters Project)
        COVID-19 pandemic has led to the lockdown of major cities worldwide, which caused the early closure of schools and educational institutions in the towns affected. This pandemic had a negative impact on the performance of ...
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        Factors of the Asymmetric Non-Uniform DIF Detection Rate When Using the Alternative Mantel-Haenszel Procedure 

        MOLLAZEHI, MOHAMMAD D. (2020 , Master Thesis)
        Test-item bias has become an increasingly challenging investigation in statistics and education. A popular method, the Mantel-Haenszel (MH) Test, is used for detecting non-uniform differential item functioning (DIF) but ...
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        GENERALIZING THE POINT BISERIAL TO MEASURE THE ASSOCIATION BETWEEN A SET OF DICHOTOMOUS VARIABLES AND A CONTINUOUS VARIABLE 

        ALDOSARI, MASHAEL MOHAMMED R A (2022 , Master Thesis)
        Exploring the statistical association between more than two variables requires utilizing a proper technique/test along with meeting its required assumptions. Measures of correlation are used to explain such associations ...
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        Goodness of Fit Testing for the Log-Logistic distribution Based on Type I Censored Data 

        Ahmed, Samah Ibrahim (2021 , Master Thesis)
        The main aim of this thesis is to investigate the problem of the goodness of fit test for Log-Logistic distribution based on empirical distribution function under Type I censored data. The maximum likelihood estimation ...
      • IMAGE MONITORING USING MULTIVARIATE CONTROL CHARTS 

        ABOUAMOUNA, MAHA TAYSEER (2025 , Master Thesis)
        This study focuses on developing a Multivariate Hotelling's T2 control chart to monitor image data. Dimensionality reduction of the image data is achieved through Principal Component Analysis (PCA) and Sparse Principal ...
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        IMPLEMENTATION OF MACHINE LEARNING ALGORITHMS FOR CLASSIFICATION OF BONE MINERAL DENSITY TYPES BASED ON QATAR BIOBANK DATA 

        AHMED, MOHAMMED (2023 , Master Thesis)
        Bone Mineral Density (BMD) test measures the amount of calcium and other minerals in specific areas of bone. Low BMD is a well-known problem and results in bone fractures in millions of people around the world. BMD can be ...
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        IMPROVED INFERENCE FOR THE SCALE PARAMETER IN THE LOMAX DISTRIBUTION BASED ON ADJUSTED PROFILE LIKELIHOOD FUNCTIONS 

        SEWAILEM, MAISOUN F. M. (06-2 , Master Thesis)
        In this thesis, we consider improving maximum likelihood inference for the scale parameter of the Lomax distribution. The improvement is based on using modification to the maximum likelihood estimator based on Barndorff-Nielsen's ...
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        Inference About The Generalized Exponential Quantiles Based On Progressively Type-Ii Censored Data 

        Rihan, Rasha A. (2019 , Master Thesis)
        In this study, we are interested in investigating the performance of likelihood inference procedures for the 𝑝𝑡ℎ quantile of the Generalized Exponential distribution based on progressively censored data. The maximum ...
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        Inference In The Log-Logistic Distribution Based On An Adaptive Progressive Type-Ii Censoring Scheme 

        Sewailem, Maha F. (2019 , Master Thesis)
        The primary aim of this study is to explore the maximum likelihood estimation (MLE) and the Bayesian approach to estimate the parameters of log-logistic model and calculate the approximate confidence interval for the ...
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        Likelihood Inference for Step Stress Partially Accelerated Life Test Model with Type I Progressively Hybrid Censored Data from Generalized Exponential Distribution 

        Mohammedseman, Eman Abdulmalik (2021 , Master Thesis)
        This thesis considers the statistical inference on the generalized exponential distribution parameters in presence of progressive Type-I censoring under partially accelerated life test. The maximum likelihood method ...
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        LINEAR AND BAYESIAN ESTIMATION OF THE PARAMETERS OF THE TYPE II GENERALIZED LOGISTIC DISTRIBUTION BASED ON PROGRESSIVELY TYPE II CENSORED DATA 

        RIMAWI, RANA (06-2 , Master Thesis)
        Generalized distributions have become widely used in applications recently. They are very flexible in data analysis, especially with skewed models that are important and occur frequently in many applications. In particular, ...
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        Log-logistic Cox Model for Breast Cancer Partly Interval Censored Data 

        El-Salem, Alaa Ahmed (2021 , Master Thesis)
        The research in this study is concerned with implementing techniques in data which include censored observations for the evaluation of survival analysis. Analysis of survival research has numerous distinctions in the ...
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        NON-DETERMINISTIC MODELING USING QUANTILE REGRESSION 

        AL ABDULLA, AMEENA H. (06-2 , Master Thesis)
        In this thesis, we utilize quantile regression to model the conditional quantile of the dependent variable given independent variables to capture more details about the conditional distribution. In addition, we apply the ...
      • ON THE GAUSSIAN PROCESS FOR STATIONARY AND NON-STATIONARY TIME SERIES PREDICTION FOR THE QATAR STOCK MARKET 

        AL FAKIH, BATOUL MOHAMAD KAZEM (2024 , Master Thesis)
        This research adopts a Gaussian prediction model for non-stationary time series. Then, we discuss four transformation techniques: Generalized Optimal Wavelet Decomposition Algorithm (GOWDA), Hilbert Huang transform (HHT), ...
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        ON THE PREFERENCE OF ZERO-INFLATION MODELS WITH THE PRESENCE OF DATA CONTAMINATION 

        ELSOUSY, REEM MOHAMAD RIFAAT (2023 , Master Thesis)
        Nowadays, data has become a big concern for researchers to solve problems or improve a lifestyle. It is not odd that different data sources generate data with different characters. In fields such as engineering, epidemiology, ...
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        ON VARIABLE SELECTION WITH THE PRESENCE OF MISSING DATA IN LONGITUDINAL PANEL STUDIES 

        MOHAMED, RADWA M. ISMAIL (06-2 , Master Thesis)
        Longitudinal data are valuable in various disciplines because they provide helpful developmental patterns over time. However, frequently, it is challenging to have a high dimension of covariates and ubiquitous missing ...
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        Parameter Estimation and Prediction of Future Failures in the Log-Logistic Distributions Based on Hybrid-Censored Data 

        Abou Ghaida, Wassim R. (2020 , Master Thesis)
        The main purpose of this thesis is to study the prediction of future observations of a Log-Logistic distribution from Hybrid Censored Samples. We will study parameter point estimation, interval estimation, different ...

        مركز المجموعات الرقمية لجامعة قطر هو مكتبة رقمية تديرها مكتبة جامعة قطر بدعم من إدارة تقنية المعلومات

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        مركز المجموعات الرقمية لجامعة قطر هو مكتبة رقمية تديرها مكتبة جامعة قطر بدعم من إدارة تقنية المعلومات

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