1) grey target decision
灰靶决策
1.
For this problem, present decision-makers often define an interval number to denote this index value, but none has studied the interval number decision model in grey target decision.
在此情形下,人们常常对指标值给出一个区间,到目前为止,尚未有人研究区间数灰靶决策。
2.
Based on the grey target decision theories, a multi-attribute weighted grey target decision model is established.
针对多指标系统的决策特点,提出一种易于计算且实用的奖优罚劣变换算子,通过此变换算子将效果样本矩阵变换为决策矩阵,并求出最优效果向量,按照灰靶决策理论,建立了一种新的基于多指标加权灰靶决策模型,该模型充分考虑了各指标在系统中的成长特性,为多目标决策问题提供了一种科学实用的决策方法。
3.
Taking into account the correlation among different indexes as well as the influences of both different dimensions and differences of importance on effect of decisions,this paper deals with improving traditional grey target decision methods with the approach of weighted Mahalanobis distance and discusses the property of the improved grey target method.
考虑到各指标间的相关性、不同量纲和重要性差异对决策效果的影响,利用加权马氏距离对传统的灰靶决策方法进行改进,并研究了改进后灰靶的性质。
2) central grey target
中心灰靶决策
4) decision algorithm based on interval multi-attribute weighted grey target theory
加权多指标区间数灰靶决策算法
5) grey decision-making
灰色决策
1.
Introducing the grey decision-making theory in the optimization of constructional parameters,the problem to transform multi-object optimization including the rates of ore recovery,undiluted ore recovery and rock drop-in into a single-object optimization was successfully solved.
根据试验结果,采用灰色决策方法得出了张家洼铁矿-250 m中段无底柱分段崩落法的最佳结构参数为分段高度12。
2.
The paper introduces the way of applying information entropy method to ascertain the indexes weights, researches the basic principles of grey decision-making, analyses the influence factors of building construction programs biding evaluation and builds the mathematic model.
介绍了运用信息熵确定指标权重的方法,对灰色决策的基本原理进行了研究,分析了影响建筑工程项目评标的因素,建立了相应的数学模型,并通过示例对投标方案进行了灰色决策。
3.
With biodiversity, caterpillar population density and control cost as indices, optimal inoculating frequency and dosage were determined based on grey decision-making method.
以生物多样性指数、马尾松毛虫虫口密度和成本投入作为指标,用灰色决策理论对不同放菌量和不同放菌频度的12种接种式放菌方案作局势决策,以确定最佳放菌方案。
6) grey decision
灰色决策
1.
In this paper, a new method for reasonably choosing drilling rig is provided according to the prin-ciple of grey decision of grey system theory and verified through example.
本文根据灰色系统理论中的灰色决策原理,提出了一种合理选择钻机的新方法,并通过了实例验证。
2.
A single level grey decision making model,which is aimed at some existing problems on present decision of purchasing equipments,is proposed and its applications are shown with examples.
针对目前设备采购决策中存在的问题 ,提出一种单层次灰色决策数学模型 ,并以实例说明其应
补充资料：靶扫描和靶重建
靶扫描和靶重建
影像学术语。CT检查中，对扫描野(SFOV)中某一兴趣区扫描时行较大矩阵重建的方式称靶扫描。在扫描及影像重建完成后，对显示野(DFOV)中某一兴趣区重新进行较大矩阵重建成像的方式称靶重建。前者是直接利用扫描野中兴趣区的较大量的原始数据进行影像重建，后者则是利用常规扫描中采集的原始数据进行兴趣区的影像重建。两种技术实现的基本前提都是一次扫描所获得的投影测量数据必须能够满足兴趣区影像重建矩阵所需的信息量。靶扫描在扫描前预先设定兴趣区，成像后不储存非兴趣区原始数据；靶重建则需储存层面扫描所获得的全部原始数据，占用较多的磁盘空间，但以后可在图像中任选兴趣区进行局部重建。两种技术在成像效果(空间分辨率，对比分辨率)上是一致的，这与单纯的局部图像放大(zoom)不同。后者没有增加兴趣区内像素数量，虽使影像扩大但分辨率并未提高，清晰度反有下降。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条