Methodology and Computing in Applied Probability最新文献_第6页

A New Separation Index and Classification Techniques Based on Shannon Entropy 一种新的基于Shannon熵的分离指标及分类技术

4区数学

Methodology and Computing in Applied Probability Pub Date : 2023-09-22 DOI: 10.1007/s11009-023-10055-w

Jorge Navarro, Francesco Buono, Jorge M. Arevalillo

{"title":"A New Separation Index and Classification Techniques Based on Shannon Entropy","authors":"Jorge Navarro, Francesco Buono, Jorge M. Arevalillo","doi":"10.1007/s11009-023-10055-w","DOIUrl":"https://doi.org/10.1007/s11009-023-10055-w","url":null,"abstract":"Abstract The purpose is to use Shannon entropy measures to develop classification techniques and an index which estimates the separation of the groups in a finite mixture model. These measures can be applied to machine learning techniques such as discriminant analysis, cluster analysis, exploratory data analysis, etc. If we know the number of groups and we have training samples from each group (supervised learning) the index is used to measure the separation of the groups. Here some entropy measures are used to classify new individuals in one of these groups. If we are not sure about the number of groups (unsupervised learning), the index can be used to determine the optimal number of groups from an entropy (information/uncertainty) criterion. It can also be used to determine the best variables in order to separate the groups. In all the cases we assume that we have absolutely continuous random variables and we use the Shannon entropy based on the probability density function. Theoretical, parametric and non-parametric techniques are proposed to get approximations of these entropy measures in practice. An application to gene selection in a colon cancer discrimination study with a lot of variables is provided as well.","PeriodicalId":18442,"journal":{"name":"Methodology and Computing in Applied Probability","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136060079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

'Yes, I've got the job, but my challenge is keeping the job': an evaluation of a new pathway to open employment to meet the needs of people with acquired brain injury in Australia. 是的，我找到了工作，但我面临的挑战是如何保住这份工作"：为满足澳大利亚后天性脑损伤患者的需求，对新的公开就业途径进行评估。

IF 0.8 4区数学

Methodology and Computing in Applied Probability Pub Date : 2023-09-01 Epub Date: 2022-05-30 DOI: 10.1017/BrImp.2022.6

Em Bould, Libby Callaway, Natasha K Brusco

{"title":"'Yes, I've got the job, but my challenge is keeping the job': an evaluation of a new pathway to open employment to meet the needs of people with acquired brain injury in Australia.","authors":"Em Bould, Libby Callaway, Natasha K Brusco","doi":"10.1017/BrImp.2022.6","DOIUrl":"10.1017/BrImp.2022.6","url":null,"abstract":"Background and objectives: In Australia, people with disability continue to experience low employment rates (48%), compared to the national average (79%), and employment is even lower (30%) for people with acquired brain injury (ABI). This paper evaluates a pilot study of a new mainstream employment pathway following ABI, called Employment CoLab.Method: Employment CoLab was piloted across multiple industries using a mix of reasonable employer adjustments, insurance-funded supports and/or access to capacity-building supports. Semi-structured interviews were undertaken with four stakeholders; (1) Employees with ABI (n = 5, age 31-49 years, time since injury M(R) = 11(4-26) years); (2) Employers/co-workers (n = 3); (3) Allied health professionals/vocational providers (n = 4); and (4) Injury insurance funders who hold portfolio responsibility for disability employment (n = 5). An explorative economic evaluation was also conducted to compare the cost to the funder for Employment CoLab compared to traditional employment pathways.Results: Employment CoLab offered a new approach for people with ABI to gain and sustain open employment. Four major themes were identified from participant interviews: valuing employment and diversity; barriers to mainstream employment; reflections on being employed; and being supported over time. The economic evaluation was unable to detect if the pathway was, or was not, less costly when compared to traditional employment pathways.Conclusions: Employment CoLab is a person-centred collaborative approach which, together with effective social disability insurance approaches, has built new opportunities for inclusive mainstream economic participation following ABI.","PeriodicalId":18442,"journal":{"name":"Methodology and Computing in Applied Probability","volume":"15 1","pages":"395-411"},"PeriodicalIF":0.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74107451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimal Investment-Consumption and Life Insurance Strategy with Mispricing and Model Ambiguity 定价错误和模型模糊的最优投资消费与寿险策略

IF 0.9 4区数学

Methodology and Computing in Applied Probability Pub Date : 2023-08-08 DOI: 10.1007/s11009-023-10051-0

Ailing Gu, Xinya He, Shumin Chen, H. Yao

引用次数: 0

Asymptotics for a Bidimensional Renewal Risk Model with Subexponential Main Claims and Delayed Claims 具有次指数主索赔和延迟索赔的二维续期风险模型的渐近性

IF 0.9 4区数学

Methodology and Computing in Applied Probability Pub Date : 2023-08-02 DOI: 10.1007/s11009-023-10050-1

Shijie Wang, Yueli Yang, Yang Liu, Lianqiang Yang

引用次数: 0

The Effect of Loss Preference on Queueing with Information Disclosure Policy 损失偏好对信息披露策略排队的影响

IF 0.9 4区数学

Methodology and Computing in Applied Probability Pub Date : 2023-07-20 DOI: 10.1007/s11009-023-10047-w

Jian Cao, Yongjiang Guo, Zhongxin Hu

引用次数: 0

Modeling and Control of Data Transmission 数据传输建模与控制

IF 0.9 4区数学

Methodology and Computing in Applied Probability Pub Date : 2023-07-14 DOI: 10.1007/s11009-023-10048-9

Tanhao Huang, Jian Siqi, Jinwen Chen, Dai Yanan

引用次数: 0

A Non-equilibrium Geometric No-arbitrage Principle 非均衡几何无套利原理

IF 0.9 4区数学

Methodology and Computing in Applied Probability Pub Date : 2023-07-12 DOI: 10.1007/s11009-023-10049-8

Wanxiao Tang, P. Zhao

引用次数: 0

Construction of Jointly Distributed Random Samples Drawn from the Beta Two-Parameter Process 贝塔双参数过程联合分布随机样本的构造

IF 0.9 4区数学

Methodology and Computing in Applied Probability Pub Date : 2023-06-27 DOI: 10.1007/s11009-023-10046-x

Hassan Akell, F. Sajadi, I. Kazemi

引用次数: 0

On Computing the Multivariate Poisson Probability Distribution 关于多元泊松概率分布的计算

IF 0.9 4区数学

Methodology and Computing in Applied Probability Pub Date : 2023-06-20 DOI: 10.1007/s11009-023-10036-z

Bora Çekyay, J. Frenk, S. Javadi

引用次数: 0

Nonparametric Estimation of Trend for Stochastic Processes Driven by G-Brownian Motion with Small Noise 小噪声G-Brownian运动驱动随机过程趋势的非参数估计

IF 0.9 4区数学

Methodology and Computing in Applied Probability Pub Date : 2023-06-01 DOI: 10.1007/s11009-023-10045-y

Xuekang Zhang, Shounian Deng, W. Fei

引用次数: 0