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Int. J. Math. Model. Numer. Optimisation最新文献

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An improved ACO-based decision tree algorithm for imbalanced datasets 一种改进的基于蚁群算法的不平衡数据决策树算法
Int. J. Math. Model. Numer. Optimisation Pub Date : 2021-01-01 DOI: 10.1504/ijmmno.2021.10041068
Muhamad Hasbullah Mohd Razali, R. Saian, Y. B. Wah, K. Ku-Mahamud
{"title":"An improved ACO-based decision tree algorithm for imbalanced datasets","authors":"Muhamad Hasbullah Mohd Razali, R. Saian, Y. B. Wah, K. Ku-Mahamud","doi":"10.1504/ijmmno.2021.10041068","DOIUrl":"https://doi.org/10.1504/ijmmno.2021.10041068","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80550102","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: 2
Exploring the linkages between HIV/AIDS and poverty: insights through a mathematical model 探索艾滋病毒/艾滋病与贫困之间的联系:通过数学模型的见解
Int. J. Math. Model. Numer. Optimisation Pub Date : 2021-01-01 DOI: 10.1504/IJMMNO.2021.10035552
S. Chibaya, F. Nyabadza
{"title":"Exploring the linkages between HIV/AIDS and poverty: insights through a mathematical model","authors":"S. Chibaya, F. Nyabadza","doi":"10.1504/IJMMNO.2021.10035552","DOIUrl":"https://doi.org/10.1504/IJMMNO.2021.10035552","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85024498","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 survey on update parameters of nonlinear conjugate gradient methods 非线性共轭梯度法参数更新研究进展
Int. J. Math. Model. Numer. Optimisation Pub Date : 2021-01-01 DOI: 10.1504/IJMMNO.2021.10037503
Nirmalya Kumar Mohanty, R. K. Nayak
{"title":"A survey on update parameters of nonlinear conjugate gradient methods","authors":"Nirmalya Kumar Mohanty, R. K. Nayak","doi":"10.1504/IJMMNO.2021.10037503","DOIUrl":"https://doi.org/10.1504/IJMMNO.2021.10037503","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87664202","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: 4
Analysis of a multiserver queueing inventory model with self-service 具有自助服务的多服务器排队库存模型分析
Int. J. Math. Model. Numer. Optimisation Pub Date : 2021-01-01 DOI: 10.1504/IJMMNO.2021.10037501
K. Rasmi, M. Jacob
{"title":"Analysis of a multiserver queueing inventory model with self-service","authors":"K. Rasmi, M. Jacob","doi":"10.1504/IJMMNO.2021.10037501","DOIUrl":"https://doi.org/10.1504/IJMMNO.2021.10037501","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91096655","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: 2
A deeper Newton descent direction with generalised Hessian matrix for SVMs: an application to face detection 基于广义Hessian矩阵的支持向量机更深牛顿下降方向:在人脸检测中的应用
Int. J. Math. Model. Numer. Optimisation Pub Date : 2021-01-01 DOI: 10.1504/IJMMNO.2021.10035562
A. Amir, K. E. Amine
{"title":"A deeper Newton descent direction with generalised Hessian matrix for SVMs: an application to face detection","authors":"A. Amir, K. E. Amine","doi":"10.1504/IJMMNO.2021.10035562","DOIUrl":"https://doi.org/10.1504/IJMMNO.2021.10035562","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81505445","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 bioeconomic model applied to a small pelagic species along the Moroccan coast 一个应用于摩洛哥沿海小型远洋物种的生物经济模型
Int. J. Math. Model. Numer. Optimisation Pub Date : 2021-01-01 DOI: 10.1504/ijmmno.2021.114479
Youssef EL FOUTAYENI, N. Achtaich, Meriem Bentounsi, I. Agmour
{"title":"A bioeconomic model applied to a small pelagic species along the Moroccan coast","authors":"Youssef EL FOUTAYENI, N. Achtaich, Meriem Bentounsi, I. Agmour","doi":"10.1504/ijmmno.2021.114479","DOIUrl":"https://doi.org/10.1504/ijmmno.2021.114479","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73954112","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
Separation correction by speed-adjustment for aircraft on air routes to a congested airport 对飞往拥挤机场航线上的飞机进行速度调整的分离校正
Int. J. Math. Model. Numer. Optimisation Pub Date : 2021-01-01 DOI: 10.1504/ijmmno.2021.118422
Hirohide Matsunaga
{"title":"Separation correction by speed-adjustment for aircraft on air routes to a congested airport","authors":"Hirohide Matsunaga","doi":"10.1504/ijmmno.2021.118422","DOIUrl":"https://doi.org/10.1504/ijmmno.2021.118422","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74429622","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
Discrete time portfolio optimisation managing value at risk under heavy tail return distribution 重尾收益分布下风险价值管理的离散时间投资组合优化
Int. J. Math. Model. Numer. Optimisation Pub Date : 2020-12-01 DOI: 10.1504/ijmmno.2020.10031727
Subhojit Biswas, Diganta Mukherjee
{"title":"Discrete time portfolio optimisation managing value at risk under heavy tail return distribution","authors":"Subhojit Biswas, Diganta Mukherjee","doi":"10.1504/ijmmno.2020.10031727","DOIUrl":"https://doi.org/10.1504/ijmmno.2020.10031727","url":null,"abstract":"We consider an investor, whose portfolio consists of a single risky asset and a risk free asset, who wants to maximize his expected utility of the portfolio subject to the Value at Risk assuming a heavy tail distribution of the stock prices return. We use Markov Decision Process and dynamic programming principle to get the optimal strategies and the value function which maximize the expected utility for parametric as well as non parametric distributions. Due to lack of explicit solution in the non parametric case, we use numerical integration for optimization","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79620131","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: 1
Mathematical modelling of piezoelectric elastic materials 压电弹性材料的数学建模
Int. J. Math. Model. Numer. Optimisation Pub Date : 2020-07-07 DOI: 10.1504/ijmmno.2020.10030436
Allaoua Boudjedour, Mohamed Dalah
{"title":"Mathematical modelling of piezoelectric elastic materials","authors":"Allaoua Boudjedour, Mohamed Dalah","doi":"10.1504/ijmmno.2020.10030436","DOIUrl":"https://doi.org/10.1504/ijmmno.2020.10030436","url":null,"abstract":"We consider a quasistatic contact modelled with the regularised friction law for electro-elastic and the foundation is assumed to be electrically conductive. This regularisation is obtained by replacing the function j(.) by the function jρ(.), where ρ is a strictly positive parameter. The classical formulation for the antiplane problem is formulated as a time dependent of corresponding variational formulation and is solved by the Banach fixed-point theorem and classical results for variational inequalities. We provide a weak formulation of the contact problem in the form variational system in which the unknowns are the displacement and the stress fields, then we establish the existence of a unique weak solution to the model. Finally, we have given a convergence criterion of the solution as the parameter of regularisation ρ converges to zero.","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79293954","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 of effects of toxicants and acidity on oxygen-dependent aquatic population: a mathematical model 毒物和酸度对依赖氧的水生种群影响的研究:一个数学模型
Int. J. Math. Model. Numer. Optimisation Pub Date : 2020-07-07 DOI: 10.1504/ijmmno.2020.10030438
P. Kalra, S. Tangri
{"title":"Study of effects of toxicants and acidity on oxygen-dependent aquatic population: a mathematical model","authors":"P. Kalra, S. Tangri","doi":"10.1504/ijmmno.2020.10030438","DOIUrl":"https://doi.org/10.1504/ijmmno.2020.10030438","url":null,"abstract":"The rapidly elevating contamination of water bodies is one of the present-day critical problems occurring worldwide. It is a well-determined fact that the direct discharge of household wastes, industrial effluents, chemicals, acids and other pollutants into water bodies along with eutrophication are degrading the water quality. Washing-off of land pollutants in water bodies coupled with acid rain further increase the toxicity and acidity of water. These phenomena are leading to decrease of dissolved oxygen in water which is endangering the growth and survival of populations residing in water. To investigate the stress of increasing toxicity and acidity of water bodies like ponds, lakes and rivers on the aquatic population due to decrease in dissolved oxygen, a nonlinear mathematical model is proposed. The model is analysed and the stability conditions are derived in terms of the parameters. To substantiate the analytical results, numerical simulations are carried out using MATLAB.","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83493165","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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