A simulation study of a parametric mixture model with three different distributions is considered in this paper to model heterogeneous survival data. The proposed parametric mixture of Exponential, Gamma, and Weibull has some properties that are investigated. To estimate the maximum likelihood estimators of three different postulated parametric mixture model parameters, the Expectation Maximization Algorithm…

# Category: Mathematics and Computer Science

## Computing Customers Sojourn Times in Jackson Networks Distribution Functions and Moments

Jackson queuing networks have a wide range of applications, most notably in services and technological devices. Healthcare networks are an example of the first case, and computation and telecommunications networks are examples of the second. Clearly, the time a customer – a person, a job, a message… – spends in these types of systems, known…

## Study on the Use of REGWQ Multiple Comparisons of Qualitative Data: A Statistical Approach

The Ryan-Einot-Gabriel-Welsch and Quiot (REGWQ) test compares large amounts of data while monitoring the likelihood of making at least one Type I or Family wise error. In this study, the REGWQ multiple comparisons test for qualitative data was used. Okra characterisation data was used for multiple comparisons of means and was submitted to ANOVA (P…

## Studies on the Product of Integro Quasi-Differential Equations and Their Solutions in Direct Sum Spaces

Author(s) Details Prof. Dr. Sobhy El-Sayed IbrahimFaculty of Science, Department of Mathematics, Benha University, P.O.Box 13518 Benha, Egypt.View Book :- https://stm.bookpi.org/CTMCS-V1/article/view/1392

## Modeling Alignment of Software Projects Needs with Software Project Teams’ Needs: It is a Balancing Act

Due to the fastpaced, competitive world in which information and communication technology (ICT) projects are run, as well as ICT professionals’ constantly evolving requirements, project managers face a challenge in aligning project requirements with project team members. A project client measures project success by how well a project manager meets project goals, whereas software project…

## Study on Interval Arithmetic and Its Application to Electrical Circuits

In general, interval arithmetic is a useful method for dealing with inequalities, estimated numbers, error bounds, and other convex and bounded sets. In this section, we’ll look at a few simple cases where intervals and ranges of functions over intervals appear naturally. Interval mathematics is a generalization in which interval numbers replace real numbers, interval…

## A Novel Framework of Disambiguation Technique for Discovering Concept Drift

Word Sense Disambiguation has been a hot topic in Natural Language Processing research. WSD is essentially a solution to ambiguity caused by different meanings of words in different contexts. The main issue with WSD is that different algorithms may be required for different applications. This paper provides a structure for discovering concept drift as well…

## Deliverable-Oriented Work Breakdown Structure: A Software Project Scope Verification Tool

Software project scope verification is an important part of project scope management that must be done correctly to avoid project rework and improve project scope control. A software project scope is defined as the work required to create the required product with all of its necessary functions and features. Furthermore, software scope verification is critical…

## Studies on Two Supreme Principles of Plato’s Cosmos: The One and the Indefinite Dyad—The Division of a Straight Line into Extreme and Mean Ratio, and Pingala’s Mātrāmeru

In this survey, we look at some findings regarding the behavior of the resolvent of a weighted shift operator. The relationship between the coefficients of the mentioned operators, the behavior of the Cesaro averages, and the behavior of the resolvent were all taken into account. a/b + b)/a = a/b When applied to linear geometry,…

## A Survey on the Behavior of the Resolvent of Weighted Shift Operator

In this survey, we look at some findings regarding the behavior of the resolvent of a weighted shift operator. The relationship between the coefficients of the mentioned operators, the behavior of the Cesaro averages, and the behavior of the resolvent were all taken into account. Author(s) Details Ali A. ShukurComputer Technical Engineering Department, College of…