The optimizer ACTS based on statistical data about the number of rows in a table, the use of space by a table or index, and other information.
优化器的操作基于数据表中的行数、数据表或索引使用的空间以及其他信息的相关统计数据。
Figure 25 depicts both graphical and statistical representations of the space utilization by different types of dbspaces — DATA space, TEMP space and BLOB space.
图25用图形和统计数据显示不同dbspace类型使用的空间——DATA空间、TEMP空间和BLOB空间。
In this paper, the bounds on the rate of uniform convergence of the learning processes on possibility space are discussed based on the classic Statistical learning Theory.
本文在经典统计学习理论的基础上，讨论了可能性空间上学习过程一致收敛速度的界。
The random field models can be available in synthesizing the natural texture according to the statistical distribution of intensity of texture in space.
根据自然红外纹理在空间的统计分布特性，利用随机场模型可以有效地合成红外纹理。
Fabric analysis studys vectorial quality of natural rock and unit in space by statistical method and illustrates or probes the produced condition and metastatic history during tectonic movement.
岩组分析是利用统计的方法研究天然岩石及其组成单元在空间向量性质，以阐明或探讨岩石形成时的条件及其在构造运动中的变形历史。
The progressive failure is defined as the failure area develops in space and continually along the potential slide carved surface in statistical even soil.
渐近性破坏定义为在统计均质土体中，沿着潜在滑动面破坏区空间地和连续地扩展。
Generalized coherent states of a non harmonic oscillator in a finite dimensional Hilbert space are constructed and some quantum statistical properties are studied.
在有限维希尔伯特空间中构造了非简谐振子的广义相干态，并研究了其量子统计特性。
Then, after computing and statistical analysis on a great deal of typical types of space truss, the scope of permitted frequency in normal use are educed.
然后，对各种网架结构的典型形式进行了大量计算及统计分析，从中总结出网架动力性能的规律性。
Statistical analysis results of numerical wind speed time series show that the method is efficient in simulating nodal wind speed time series which has time and space correlativity.
计算结果表明该方法可有效地模拟具有时间相关性、空间相关性的节点脉动风速时程。
Incorporating the seismicity non-stationarity in time and nonuniformity in space, the statistical data of seismic unit and its potential source areas represent a certain significance for this region.
基于区域内各统计单元及其潜在震源之间地震活动的时空非均匀性，本文给出的结果具有特定的统计意义。
Other statistical learning techniques are applied to these if given an appropriate proximity measure or a vectorial representation space found by graph embeddings [79].
如果有一个适当的相似性度量方法或一个结合图表形式的向量表示空间，统计学习技术则可以被用上。
Mean shift based image segmentation algorithm is a kind of kernel density estimation based feature space analysis algorithm, and the nature of it is statistical optimization.
均值漂移算法是一种基于核密度梯度估计的特征空间分析算法，其实质是一种统计优化过程。
During the statistical process of density, the probability density distribution of the rock mass structural plane in sample space is assumed as normal distribution.
在密度统计过程中，把岩体结构面样本在空间上的概率密度分布假设成正态分布。
Based on the principle of pole density statistics, and by applying the three-dimensional statistical method, the space analytic geometry is adopted to directly calculate the included Angle.
以极点密度统计原理为基础，采用三维统计方法，由空间解析几何直接计算统计夹角。
Logic statistical analysis predictive model is established, and through homogeneous meshing, the space quantitative evaluation on goe-hazards susceptivity is realized.
建立逻辑统计分析预测模型，采用均质网格划分，实现了地质灾害危险性的空间定量评价。
We should instead be searching for reliable statistical methods for quantifying the probability of earthquake occurrence as a function of space, time, earthquake size, and previous seismicity.
我们应改为寻找可靠的统计学方法对地震作为方位、时间、地震大小，以及过去地震活动性的函数关系概率进行定量分析。
This paper introduced three skin-color detecting model: Statistical color model, Chroma Space model and Gaussian Mixture model.
本文介绍了常用的三种肤色检测模型：统计颜色模型、色度空间模型和高斯混合模型。
The statistical performance of the broadband beam space high resolution algorithm is studied by using the broadband array gain analysis of multiple beam system.
文中应用宽带阵增益分析研究了宽带波束域高分辨估计方法的统计性能，通过仿真计算了宽带阵增益和宽带波束域高分辨方法方位估计误差。
The statistical performance of the broadband beam space high resolution algorithm is studied by using the broadband array gain analysis of multiple beam system.
文中应用宽带阵增益分析研究了宽带波束域高分辨估计方法的统计性能，通过仿真计算了宽带阵增益和宽带波束域高分辨方法方位估计误差。
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