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Current Topics on Mathematics and Computer Science Vol. 3最新文献

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An Reliable Data Transfer in Underwater Sensor Networks 水下传感器网络中的可靠数据传输
Current Topics on Mathematics and Computer Science Vol. 3 Pub Date : 2021-06-29 DOI: 10.9734/bpi/ctmcs/v3/1774c
S. Kalaiselvan, R. Rangasamy, P. Manikandan
{"title":"An Reliable Data Transfer in Underwater Sensor Networks","authors":"S. Kalaiselvan, R. Rangasamy, P. Manikandan","doi":"10.9734/bpi/ctmcs/v3/1774c","DOIUrl":"https://doi.org/10.9734/bpi/ctmcs/v3/1774c","url":null,"abstract":"","PeriodicalId":403153,"journal":{"name":"Current Topics on Mathematics and Computer Science Vol. 3","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116989080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Chi-square (X2) Distribution as a Research Tool and Some of Its Most Important Parametric and Non-parametric Applications 卡方(X2)分布作为研究工具及其一些最重要的参数和非参数应用
Current Topics on Mathematics and Computer Science Vol. 3 Pub Date : 2021-06-29 DOI: 10.9734/bpi/ctmcs/v3/10046d
A. Vasilopoulos
{"title":"The Chi-square (X2) Distribution as a Research Tool and Some of Its Most Important Parametric and Non-parametric Applications","authors":"A. Vasilopoulos","doi":"10.9734/bpi/ctmcs/v3/10046d","DOIUrl":"https://doi.org/10.9734/bpi/ctmcs/v3/10046d","url":null,"abstract":"","PeriodicalId":403153,"journal":{"name":"Current Topics on Mathematics and Computer Science Vol. 3","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127010426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Advanced Approach on Focused Crawling with Anchor Text 锚文本集中爬行的一种高级方法
Current Topics on Mathematics and Computer Science Vol. 3 Pub Date : 2021-06-29 DOI: 10.9734/bpi/ctmcs/v3/2547f
S. Devi
{"title":"An Advanced Approach on Focused Crawling with Anchor Text","authors":"S. Devi","doi":"10.9734/bpi/ctmcs/v3/2547f","DOIUrl":"https://doi.org/10.9734/bpi/ctmcs/v3/2547f","url":null,"abstract":"Title: An advanced approach with focused crawling for various anchor texts is discussed in this paper. \u0000Background: Most of the search engines search the web with the anchor text to retrieve the relevant pages and answer the queries given by the users. The crawler usually searches the web pages and filters the unnecessary pages which can be done through focused crawling. A focused crawler generates its boundary to crawl the relevant pages based on the link and ignores the irrelevant pages on the web. \u0000Methods and Findings: In this paper, an effective focused crawling method is implemented to improve the quality of the search. Here, three learning phases are considered namely, content-based, link-based and sibling-based learning are undergone to improve the navigation of the search. In this approach, the crawler crawls through the relevant pages efficiently and more relevant pages are retrieved in an effective way. \u0000Study Objective: The objective of the study is that more number of relevant pages is retrieved for different anchor texts with three learning phases using focused crawling.","PeriodicalId":403153,"journal":{"name":"Current Topics on Mathematics and Computer Science Vol. 3","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126491081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on an Inventory Model with Retrial Customer and Two Heterogeneous Servers Including One with Multiple Vacations 具有重审客户和两个异构服务器(其中一个服务器有多个假期)的库存模型研究
Current Topics on Mathematics and Computer Science Vol. 3 Pub Date : 2021-06-29 DOI: 10.9734/bpi/ctmcs/v3/10318d
K. Jeganathan, C. Sugapriya, M. Nithya
{"title":"Study on an Inventory Model with Retrial Customer and Two Heterogeneous Servers Including One with Multiple Vacations","authors":"K. Jeganathan, C. Sugapriya, M. Nithya","doi":"10.9734/bpi/ctmcs/v3/10318d","DOIUrl":"https://doi.org/10.9734/bpi/ctmcs/v3/10318d","url":null,"abstract":"In this chapter, we deal with a continuous review perishable inventory system with a service facility having two heterogeneous servers (henceforth, referred to as server 1  and 2 server ) and server 2  is always available but server 1  goes on vacation when the inventory level is less than or equal to one. The individual customer is issued a demanded item after a random service time, which is distributed as negative exponential. The life time of each commodity is assumed to be exponential. The inventory is replenished according to an (s, Q) control policy and the replenishing times are assumed to be exponentially distributed. At the end of a vacation period, service begins if inventory level is more than one in the system. Otherwise, the server takes another vacation immediately and continuous in the same method until he finds at least two items in the system upon returning from a vacation. Any arriving primary customers who find the waiting room full are queued in the orbit. The inter-retrial times are exponentially distributed. The joint probability distribution of the number of customers in the waiting room, the number of customers in the orbit, the status of the servers and the inventory level are obtained for the steady state case. Some important system performance measures in the steady state are derived, and the long-run total expected cost rate is also calculated. The results are illustrated numerically.","PeriodicalId":403153,"journal":{"name":"Current Topics on Mathematics and Computer Science Vol. 3","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132032704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Comparative Study of Diagnosis of Lower Back Pain Based on Classification and Imaging Techniques 基于分类和影像学技术诊断下背部疼痛的比较研究
Current Topics on Mathematics and Computer Science Vol. 3 Pub Date : 2021-06-29 DOI: 10.9734/bpi/ctmcs/v3/10901d
Mittal Desai
{"title":"A Comparative Study of Diagnosis of Lower Back Pain Based on Classification and Imaging Techniques","authors":"Mittal Desai","doi":"10.9734/bpi/ctmcs/v3/10901d","DOIUrl":"https://doi.org/10.9734/bpi/ctmcs/v3/10901d","url":null,"abstract":"In this paper different classification methods are compared using base and meta (Combination of Multiple Classifier for training) level classifiers, for the fruitful diagnosis of Lower Back Pain. Radiology based different imaging techniques are also compared for diagnosing Lower Back Pain, like Computed Tomography (CT)  scan, Magnetic Resonance Imaging (MRI).  The Lower Back Pain becomes chronic with age, so needs to be correctly diagnose with symptoms in the early age. Five independent classifiers were implemented at base level and meta level. At meta level, five combinations of different classifiers were implemented, using voting technique. According to the scores, the overall classification using Naive Bayes and Multilayer Perceptron got the maximum efficiency 83.87%. The purpose of this paper is to diagnose healthy individuals efficiently. To carry out study the Lower Back Pain Symptoms Dataset is used from very famous platform for predictive modelling, Kaggle. The experiments were carried out in WEKA (Waikato Environment for Knowledge Analysis), suite of machine learning software [1].","PeriodicalId":403153,"journal":{"name":"Current Topics on Mathematics and Computer Science Vol. 3","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125263421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on Harmonious Labeling of Symmetrical Trees of Diameter Four 直径为4的对称树的和谐标记研究
Current Topics on Mathematics and Computer Science Vol. 3 Pub Date : 2021-06-29 DOI: 10.9734/bpi/ctmcs/v3/2452e
A. Panda, D. Mishra
{"title":"Study on Harmonious Labeling of Symmetrical Trees of Diameter Four","authors":"A. Panda, D. Mishra","doi":"10.9734/bpi/ctmcs/v3/2452e","DOIUrl":"https://doi.org/10.9734/bpi/ctmcs/v3/2452e","url":null,"abstract":"A harmonious labeling on a graph G is an injection from the vertices of G to the group of integers modulo k, where k is the number of edges of G, that induces a bijection between the edges of G and the numbers modulo k by taking the edge label for an edge ab to be the sum of the labels of the two vertices a(cong)b(modk).In this paper we prove that the symmetrical trees of diameter four admit harmonious labeling. Harmonious graphs can be used in the study of error correcting codes and channel assignment problems.","PeriodicalId":403153,"journal":{"name":"Current Topics on Mathematics and Computer Science Vol. 3","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132818920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on Mathematical Model for Simulating Yarn Unwinding from Packages 纱线从包装中展开模拟数学模型的研究
Current Topics on Mathematics and Computer Science Vol. 3 Pub Date : 2021-06-29 DOI: 10.9734/bpi/ctmcs/v3/10213d
S. Praček, M. Halász
{"title":"Study on Mathematical Model for Simulating Yarn Unwinding from Packages","authors":"S. Praček, M. Halász","doi":"10.9734/bpi/ctmcs/v3/10213d","DOIUrl":"https://doi.org/10.9734/bpi/ctmcs/v3/10213d","url":null,"abstract":"In many textile operations, yarn unwinding from a package is important. The efficiency of the procedure as well as the quality of the end product are directly influenced by the unwinding process's stability. The tension oscillates during the unwinding process. \u0000This is most visible during over-end unwinding from a static package, as the yarn is removed at a high velocity in the package axis' direction. Even at very high unwinding velocities, the package's ideal shape allows for an optimal shape of the yarn balloon and low and consistent tension. The goal of this project is to write down the equations that explain yarn motion during unwinding and to build a mathematical model that can be used to replicate the process.","PeriodicalId":403153,"journal":{"name":"Current Topics on Mathematics and Computer Science Vol. 3","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129706321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on Improving the Development of a Triangle Geometry Computer Application Using Design Patterns 利用设计模式改进三角形几何计算机应用程序开发的研究
Current Topics on Mathematics and Computer Science Vol. 3 Pub Date : 2021-06-29 DOI: 10.9734/bpi/ctmcs/v3/10325d
A. Iordan
{"title":"Study on Improving the Development of a Triangle Geometry Computer Application Using Design Patterns","authors":"A. Iordan","doi":"10.9734/bpi/ctmcs/v3/10325d","DOIUrl":"https://doi.org/10.9734/bpi/ctmcs/v3/10325d","url":null,"abstract":"Object-oriented software design is difficult, and reusable object-oriented software design is even more complicated. The design must be specific to the problem, but also general enough to be able to solve future requirements. In the process of developing an interactive computer application, design represents probably the most important factor that can affect its quality. Propitiously, there are presently various design patterns that can be used to solve a general problem.Competent architects' design solutions are represented through design models.As a result, in the oriented object programming paradigm, any design model seeks to solve a specific design issue. The purpose of this work is to propose an interactive computer application that can be utilised in the study of triangle geometry. The design of the computer application is improved by using of the \"Factory\" creational pattern and “Observer” behavioural pattern. The use of factory pattern binds parallel class hierarchies such that it can localize the knowledge of which classes belong together. The most important advantage of using observer pattern is that this template simplifies programming work considerably. The implementation is accomplished through the Java programming language which is an independent platform. The use of these two design patterns improves development, extensibility and reusability of triangle geometry computer application.","PeriodicalId":403153,"journal":{"name":"Current Topics on Mathematics and Computer Science Vol. 3","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115286017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Recent Study on the Graeco-Latin Square and Hyper Graeco-Latin Square Designs 希腊-拉丁广场与超希腊-拉丁广场设计新研究
Current Topics on Mathematics and Computer Science Vol. 3 Pub Date : 2021-06-29 DOI: 10.9734/bpi/ctmcs/v3/9087d
W. H. Moolman
{"title":"A Recent Study on the Graeco-Latin Square and Hyper Graeco-Latin Square Designs","authors":"W. H. Moolman","doi":"10.9734/bpi/ctmcs/v3/9087d","DOIUrl":"https://doi.org/10.9734/bpi/ctmcs/v3/9087d","url":null,"abstract":"A Latin square model can simultaneously control two sources of nuisance variability.  As an experimental design model, the Graeco-Latin square is an extension of a Latin square and can simultaneously control three sources of nuisance variability. The first mentioning of the Graeco-Latin square was in 1782. The following aspects of this model will be discussed:  A brief history, estimation and ANOVA, use for the analysis of experimental data (example with R code given), model generation and a test for non-additivity. An R example of the Hyper Graeco-Latin square model, which extends the Graeco-Latin square to controlling four sources of nuisance variability, will also be discussed.","PeriodicalId":403153,"journal":{"name":"Current Topics on Mathematics and Computer Science Vol. 3","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132890933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Negative Hypergeometric Distribution: Discussion on Theoretical Results and Applications 负超几何分布:理论结果与应用讨论
Current Topics on Mathematics and Computer Science Vol. 3 Pub Date : 2021-06-29 DOI: 10.9734/bpi/ctmcs/v3/9088d
W. H. Moolman
{"title":"The Negative Hypergeometric Distribution: Discussion on Theoretical Results and Applications","authors":"W. H. Moolman","doi":"10.9734/bpi/ctmcs/v3/9088d","DOIUrl":"https://doi.org/10.9734/bpi/ctmcs/v3/9088d","url":null,"abstract":"","PeriodicalId":403153,"journal":{"name":"Current Topics on Mathematics and Computer Science Vol. 3","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133412448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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