The multimod application framework: a rapid application development tool for computer aided medicine

This paper describes a new application framework (OpenMAF) for rapid development of multimodal applications in computer-aided medicine. MAF applications are multimodal in data, in representation, and in interaction. The framework supports almost any type of biomedical data, including DICOM datasets, motion-capture recordings, or data from computer simulations (e.g. finite element modeling). The interactive visualization approach (multimodal display) helps the user interpret complex datasets, providing multiple representations of the same data. In addition, the framework allows multimodal interaction by supporting the simultaneous use of different input-output devices like 3D trackers, stereoscopic displays, haptics hardware and speech recognition/synthesis systems. The Framework has been designed to run smoothly even on limited power computers, but it can take advantage of all hardware capabilities. The Framework is based on a collection of portable libraries and it can be compiled on any platform that supports OpenGL, including Windows, MacOS X and any flavor of Unix/linux.     

COSSAC: a framework for analyzing and configuring secure computer facilities

Checklist have historically provided the vehicle for analyzing the security posture of a computer facility but they have at least two deficiencies: they cannot take into account the unique operational and environmental requirements of a particular facility nor can they rationalize the interaction between various protective measures. The system to be described is a computer program that carried on a structured dialogue with the analyst to obtain information about existing safeguards and perceived needs; then it issues warnings and suggestions directed at upgrading the security of the facility. It is written in a non-procedural language that makes it easy to change. Its knowledge base can therefore grow with experience and track advances in the state of the art.     

Optimizing machining parameters in a framework for adaptive computer control

This paper presents a simplified approach for determining optimum machining parameters. Sensitivity analysis using this approach is illustrated through an example problem and extended to demonstrate a framework for an adaptive control structure.     

计算机机房的电源保障初探

针对计算机系统在行业应用中,具有故障发生的隐蔽性、突发性和灾难性特点,从外部供电、UPS架构、机房监控到如何完善管理,探讨重要机房的电源保障方案.     

浅谈学校计算机网络机房的管理和维护

公共机房的管理与维护是保证学校正常教学活动的基础工作.科学的管理,会使机房维护工作事半功倍.本文根据笔者在中学公共机房十多年来的工作经验,通过对公共机房的软件、硬件设备的管理,系统的维护等方面详尽的阐述,并对在机房管理与维护中经常遇到的问题及解决方法总结出几点建议,可有效提高计算机机房的管理效率.     

浅谈无盘网络在高校机房中的实际应用

在各高校机房的日常管理当中,系统的安装、软件的升级及常规的维护对机房管理人员来说都是一件繁杂的事情.无盘网络的应用,可以在很大程度上减少管理人员的机房维护工作.我校所用的锐起无盘系统就是一款不错的无盘系统产品.     

高校计算机机房信息化管理与维护的探索

现在的高校计算机机房都配置了较多数量的计算机,机房管理不但是计算机教学的重要组成部分和基本保证,也是一项专业性强又比较烦琐的工作。因此怎样管理与维护好计算机机房,使之更好更高效为教学和科研服务,是一个值得我们探索的问题。     

当前供电系统信息机房管理存在的问题与对策

由于当前我国电力事业的不断蓬勃发展,供电系统的信息机房建设速度也得到快速发展,供电公司信息化管理提速.本文立足地市公司对信息管理进行分析,再结合机房在实际中的管理情况,对机房在管理中所存在的问题进行了探讨,并对所存在的问题提出了解决之道.     

公共机房微机节能方法探索

分析了微机机房管理中不容忽视的能耗问题,探讨了通过加强机房节能技术应用与管理维护等方面的工作,以达到机房节能降耗的目的的相关方法与手段     

高校机房布线系统设计

在高校计算机机房建设中,布线是整个网络系统的重点。机房管理教师在布线之初必须做好前期的规划设计工作。为此,电源线和网络线的布设分为设计、施工、验收三个步骤,在保证系统高质量的前提下,兼顾其经济、美观、实用和安全性,为机房实践课的高效率提供有力保障。     

Clinical psychological test interpretations by computer: Hardware outpaces software

The development of computers and related hardware for computer-assisted, psychological test interpretation represents an important advance in the field of psychological assessment. Unfortunately, development and validation of associated software is not as advanced as is the hardware. Yet software is the heart of packages being sold in unprecedented numbers to undertrained and unsuspecting purchasers of these systems. The author includes criticism of a representative narrative published for one MMPI codetype to buttress the opinion that valid sounding, computer-generated reports have the potential to lull the untrained service provider into believing that these narratives can be used in isolation without further reference to the clinical history of the individual. Furthermore, it is believed that when today's computer software is exposed to the scrutiny of our courts, it will fare relatively poorly against today's experienced and credentialed (albeit unvalidated) clinician. This assertion reflects the author's belief that the appropriately credentialed clinician is still better able than computer software to interrelate test findings with each client's unique, observable characteristics and history. Nevertheless, in the not too distant future it is very possible that further research will help give software and advantage over the clinician.     

The use of virtual environments based on a modification of the computer game Quake III Arena in psychological experimenting

We investigated whether newly developed virtual 3D environments (VEs) based on a modification of the computer game Quake III Arena^® are suitable for psychological experimenting. Internal validity of data collected in VEs may be threatened due to a priori individual differences in general performance in VE navigation and in susceptibility to cybersickness. The main question was whether individual differences in performance can be diminished by means of training. Additionally, the susceptibility of different subsamples to cybersickness when moving within VEs was examined. 85 participants took part in an experiment where they had to fulfill simple tasks in three VEs. Navigation performance was measured as the time participants needed to make their way through the VEs. Differences in navigation performance between different levels of experience were diminished by training, indicating that internal validity can be obtained. A classification tree reveals that game-inexperienced female participants aged over 31 years have the highest risk of experiencing cybersickness. VEs based on modifications of computer games seem to be an extremely promising and inexpensive possibility for the administration of psychological experiments.     

探讨网络机房的建设与安全管理

本文从计算机网络安全的定义和重要性及设计、建设要点进行分析,探讨了网络机房系统建设的优化方案及网络机房的安全管理对策.     

虚拟服务器管理技术在机房管理中的应用

首先分析了高校机房管理中存在的问题,根据虚拟服务器技术的特点和优势,提出利用虚拟服务器技术建立虚拟化的服务器管理平台,降低机房的建设成本和软件维护工作量,提高机房的工作效率。     

虚拟云终端技术在机房建设中的可行性研究

伴随着我国社会经济的不断发展,也相应的促进了我国科学技术的进步。在进行机房建设的过程中,需要运用相应的高端技术进行建设。因此,本文主要针对于虚拟云终端技术在机房建设中的可行性进行了节能环保、成本以及与胖客户机和瘦客户机的性能比较等分析和探讨,希望通过本文的研究,能够进一步做好机房建设工作,提高机房建设工作的水平。     

Increasing participation in online communities: A framework for human–computer interaction

Online communities are becoming an accepted part of the lives of Internet users, although participation in these communities is dependent on the types of people that form them. Some of the online community’s members do not participate, people referred to as lurkers, whereas others who have been in the community for a long time, referred to as elders, participate regularly and support others. Understanding what drives these individuals and how they chose whether or not to participate will lead to online communities that thrive. This paper proposes a conceptual framework to describe what drives such individuals to carry out actions such as posting messages and adding content (level 1), the cognitions they use to determine whether or not to take such actions (level 2) and the means by which they go about carrying out the action in the environment (level 3). Finally, the framework is applied to the problem of encouraging members to participate by discussing the methods by which people can be persuaded to participate by changing the way they interpret their desires and their environment.     

An Optimum-Path Forest framework for intrusion detection in computer networks

Intrusion detection systems that make use of artificial intelligence techniques in order to improve effectiveness have been actively pursued in the last decade. However, their complexity to learn new attacks has become very expensive, making them inviable for a real time retraining. In order to overcome such limitations, we have introduced a new pattern recognition technique called optimum-path forest (OPF) to this task. Our proposal is composed of three main contributions: to apply OPF for intrusion detection, to identify redundancy in some public datasets and also to perform feature selection over them. The experiments have been carried out on three datasets aiming to compare OPF against Support Vector Machines, Self Organizing Maps and a Bayesian classifier. We have showed that OPF has been the fastest classifier and the always one with the top results. Thus, it can be a suitable tool to detect intrusions on computer networks, as well as to allow the algorithm to learn new attacks faster than other techniques.     

用万欣保护卡技术管理机房计算机系统

近年来随着高校机房计算机数量和质量的增加,上机实践的课程和人数也在不断增加,机房计算机系统的管理维护的工作越来越繁琐和艰巨。因此在计算机管理中不断尝试各种计算机管理方面的应用软件来加强机房计算机系统的管理和维护。结合本校计算机中心所采用的上海万欣还原技术对机房计算机的科学管理,对该系统和其他系统的区别以及该系统的安装模式、多系统保护、网络克隆以及远程监控管理机房计算机以及合理分配计算机的使用等特点和不足进行探讨研究。