Max versus Max

ABSTRACT

Disability-related services and experiences of the United States of America and Germany are compared. A fictional case example concerning a person with a developmental disability is followed from birth to adulthood. Examples of possible life choices are given.     

The Case of Mrs. M.-A Multidisciplinary Team Staffing

A panel of experts with diverse perspectives gained from work in medicine, law, adult protective services, social services, and criminal justice discusses a complex elder abuse case. The goal is to show how a multidisciplinary team can work together to approach difficult case that presents no easy solutinos.     

一种新型入侵检测模型及其检测器生成算法

介绍了一种基于人工免疫原理的入侵检测模型,重点研究了否定选择算法模型中检测器集合的生成算法,提出了新的初始检测器的生成算法,并对算法性能进行了分析。结果表明:该算法模型可以对未知入侵行为和已知入侵行为的变异进行有效的识别。     

A Note on the Sensitivities of Self–reporting and Screen Detection of Primary Breast Tumours

Screening programs for breast cancer are widely used to reduce the impact of breast cancer in populations. For example, the South Australian Breast X–ray Service, BreastScreen SA, established in 1989, is a participant in the National Program of Early Detection of Breast Cancer. BreastScreen SA has collected information on both screening–detected and interval or self–reported cases, which enables the estimation of various important attributes of the screening mechanism. In this paper, a tailored model is fitted to the BreastScreen SA data. The probabilities that the screening detects a tumour of a given size and that an individual reports a tumour by a specified size in the absence of screening are estimated. Estimates of the distribution of sizes detected in the absence of screening, and at the first two screenings, are also given.     

基于半边结构的膜组织触觉仿真

针对一类可以用面模型表示的软组织,提出一种基于半边数据结构和AABBs(Aligned Ax-is Bounding Boxes)树结构混合的碰撞检测响应方法,以适应触觉反馈计算的高帧率要求。触觉反馈即包含粘弹性反馈力,又包括用修改的滞滑摩擦模型表示的膜软组织的粘滞性摩擦效果。软组织变形基于简单的质点弹簧模型建模。实验表明,提出的方法比单一的使用AABBs树结构方法效率较高,使用PHANTON力反馈设备可以清楚感受到粘滞性摩擦效果。这些方法将是建立白内障虚拟手术仿真器的基础。     

SMSC负荷状态检测方法研究

对短消息服务中心的负荷状态检测方法作了探讨。在研究系统负荷状态与内部资源关系的基础上,给出了负荷状态检测参数、检测模型及基于多参数数据融合的检测方法,并通过实验测试结果对其有效性进行了分析。研究表明,系统的负荷状态可以通过对多种内部资源消耗量的检测进行评价,多参数冗余信息融合后可以提高结果的可靠性和置信度。     

Bayesian clustering and product partition models

Summary. We present a decision theoretic formulation of product partition models (PPMs) that allows a formal treatment of different decision problems such as estimation or hypothesis testing and clustering methods simultaneously. A key observation in our construction is the fact that PPMs can be formulated in the context of model selection. The underlying partition structure in these models is closely related to that arising in connection with Dirichlet processes. This allows a straightforward adaptation of some computational strategies—originally devised for nonparametric Bayesian problems—to our framework. The resulting algorithms are more flexible than other competing alternatives that are used for problems involving PPMs. We propose an algorithm that yields Bayes estimates of the quantities of interest and the groups of experimental units. We explore the application of our methods to the detection of outliers in normal and Student t regression models, with clustering structure equivalent to that induced by a Dirichlet process prior. We also discuss the sensitivity of the results considering different prior distributions for the partitions.     

基于约束权值算法的虚拟装配方法实现

在虚拟装配过程中,约束的施加在整个装配中起到非常关键的作用.文章提出了施加装配约束的约束权值算法,并说明了具体实现方法.通过在虚拟装配系统中对产品形象、直观的进行预装配,验证了该算法的有效性.     

多级免疫检测器集在分布式入侵检测中的应用

为了提高入侵检测系统的网络环境适应能力,提出了一种基于多级免疫检测器集的分布式入侵检测模型。该模型由检测主机、检测子网和中心服务器组成,将入侵检测系统部署在网络的各检测主机中,检测子网具有与上层入侵检测网络相同的特征,中心服务器负责为检测主机和子网提供支持。通过模拟生物免疫系统的免疫细胞,检测主机的免疫检测器进行了学习和进化,该模型利用二级免疫检测器集机制,协同中心服务器的疫苗接收和种痘操作,减少了检测器的数量和提高了检测器的检测能力。     

Bayesian randomized clinical trials: A decision‐theoretic sequential design

The authors propose a Bayesian decision‐theoretic framework justifying randomization in clinical trials. Noting that the decision maker is often unable or unwilling to specify a unique utility function, they develop a sequential myopic design that includes randomization justified by the consideration of a set of utility functions. Randomization is introduced over all nondominated treatments, allowing for interim removal of treatments and early stopping. The authors illustrate their approach in the context of a study to find the optimal dose of pegylated interferon for platinum resistant ovarian cancer. They also develop an algorithm to implement their methodology in a phase II clinical trial comparing several competing experimental treatments.