Persistence of maladaptive responses in schizophrenia.

30 schizophrenic patients and 30 psychiatric aides were required in 4 experimental tasks to change their responses to meet changing conditions. It was hypothesized that (a) schizophrenic patients are more likely than normals to continue a response after it becomes ineffective; (b) the persistence of the maladaptive response is a function of the severity of schizophrenia. As predicted, the patients persisted longer than the aides in the first learned but later maladaptive responses, and there was some evidence that degree of resistance to change was related to the severity of schizophrenia in the patient. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Teaching in the ivory tower, with rarely a step outside.

Methods used in teaching psychology and in appraising course outcomes have been evaluated in a restricted manner. A broader base of evaluation criteria is recommended, including laboratory tasks, projects, field trips, and field experiences. Psychologists should not limit suggestions of needed research in this area to an ivory-tower ascension of more psychological theory, but should examine also what students, psychologists, and other folks are doing in the outside world. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Considerations in the analysis of group tasks.

The transition of research in the area of small-group behavior from survey techniques to the more precise laboratory investigations has resulted in a shift in emphasis to group processes and a relative disinterest in analyzing the tasks which govern behavior. "The major purpose of the present report is to propose a paradigm that may be useful in preliminary attempts to isolate and define important group-task characteristics." (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

市域国土规划的任务、特点及实现途径--以深圳市为例

我国第一轮大规模开展国土规划始自1980年代,20多年来,区域发展进入了新的阶段:城市化进程加快、区域差距增大、经济发展与生态环境保护之间的矛盾突出,迫切需要从当前形势出发,以新的理念和指导思想制定具有超前性的国土规划,对我国区域发展,尤其是城市的发展发挥指导作用.针对我国目前快速城市化的发展阶段,新一轮国土规划在城市区域展开首批试点工作,主要任务是适应现阶段的特点,协调社会、经济、环境之间的关系,从宏观的角度,前瞻性地提出区域发展框架,谋求城市健康、持续的发展.     

对当前监理工作的认识

对当前监理工作存在的问题进行了分析,指出了监理工作的主要任务、监理单位的权利及当前监理工作应解决的问题。     

多机系统中任务运行实时处理的深度优先算法

采用深度优先算法,处理任务运行滞后问题。文中给出部分仿真结果及简要分析。     

基于TextRank的软件变更任务搜索术语识别

在软件工程的演进或维护阶段,有很多软件变更要求需要软件开发人员处理,这些变更要求通常都使用自然语言文本进行编制,而且通常涉及一个或多个相关问题域.软件开发人员要将这些概念准确映射到软件项目中的相应源码位置,已进行所要求的变更.完成这样的映射需建立若干搜索术语项,并在项目中进行搜索.而研究表明,开发人员在为任务变更提出准确而合适的搜索条件时具有一些困难.因此本文提出了一种基于TextRank的软件变更任务搜索术语的识别方法,通过分析自然语言描述的任务来识别和提出软件变更的搜索术语项,以提高搜索的准确性、平均精度和召回率.     

云平台任务资源使用状态预测分析研究

预测任务的资源使用状况是提高云平台资源使用率的重要手段之一.然而云计算平台资源使用的动态性、不确定性和突变性使得预测效果有限.为了提高云平台任务的资源使用率预测性能,本文做了如下工作:1)详细地分析了当前主流云平台的资源使用情况,提炼了云平台任务的资源使用特征;2)根据云平台的特点设计了适合任务的资源使用预测性能评价函数PEFOT(Performance Evaluation Function fOr Tasks,PEFOT);3)设计并实现了一种云平台任务的资源使用率预测方法 REPOTASK(REsource Prediction method fOr TASKs,REPO-TASK).使用Google云平台数据集进行了实验,结果表明,相对于目前已经提出的任务资源使用率预测模型BP和LSTM,REPO-TASK方法具有更好的预测性能,PEFOT值平均下降了3. 2591.     

A delay-based dynamic scheduling algorithm for bag-of-task workflows with stochastic task execution times in clouds

Bag-of-Tasks (BoT) workflows are widespread in many big data analysis fields. However, there are very few cloud resource provisioning and scheduling algorithms tailored for BoT workflows. Furthermore, existing algorithms fail to consider the stochastic task execution times of BoT workflows which leads to deadline violations and increased resource renting costs. In this paper, we propose a dynamic cloud resource provisioning and scheduling algorithm which aims to fulfill the workflow deadline by using the sum of task execution time expectation and standard deviation to estimate real task execution times. A bag-based delay scheduling strategy and a single-type based virtual machine interval renting method are presented to decrease the resource renting cost. The proposed algorithm is evaluated using a cloud simulator ElasticSim which is extended from CloudSim. The results show that the dynamic algorithm decreases the resource renting cost while guaranteeing the workflow deadline compared to the existing algorithms.