用传统的经验函数估算软件成本有很多局限性,采用基于范例库推理的估算方法可以很好地弥补其中的问题。
Software cost estimate with the traditional experience function has the shortcoming, and applying CBR estimate method can make up these problems.
本文假设您已经具有一些使用PHP的经验,并能够使用函数来传递变量并返回结果。
This article assumes that you have some experience using PHP already and can use a function to pass a variable and return a result.
创建函数需要一定的编程经验,但是并不不是很麻烦。
You need a modicum of programming savvy to create functions, but nothing onerous.
然而,有经验的UNIX开发人员还可以使用xml函数在程序中直接对文件进行修改。
However, a skilled UNIX developer can also use XML functions to directly modify the file from within the program itself.
Versa有多得多的功能,但是它们大部分是以专门的函数的形式出现,通过使用它们,您将迅速获得经验。
Versa has many more facilities, but most of them are in the form of specialized functions, with which you'll gain experience quickly.
不过,如果您初次使用Ajax的经验与我类似的话,您可能已经做了太多的工作—手动实现各种函数、经历创建一个受ajax驱动页面的艰难过程。
If your first experience with Ajax was anything like mine, however, you probably did too much work - hand-rolling your functions and struggling through the process of creating an Ajax-driven page.
以我的经验来看,导致程序运行速度慢得罪魁祸首可能就是某个内部或嵌套循环,也可能是对第三方库函数的调用。
In my experience, it will usually be a particular inner or nested loop, or a call to some third party library methods, which is the main culprit for running the program slow.
该书适合从函数式语言的初学者到那些有一定Erlang经验,并想要提高技能的人中的每一个人。
The book is suitable for everyone from novices in functional languages to those who have experience with Erlang and want to improve their skills.
虽然大多数具有多年编程经验的程序员都熟悉这些函数,但是让我对这些函数进行分解。
Although these functions are familiar to most long-time programmers, let me break them down. Effectively, you perform the following steps.
多年的经验和惨痛的教训教育我们,应该把复杂的逻辑扔到构造函数外面去,特别是那些需要从服务器获取数据的逻辑更是如此。
Years of experience and bitter tears have taught us to keep complex logic out of the constructor, especially anything that might call a server as a data access method is sure to do.
以我的经验,在进入动作中很少需要这些函数,所以这一方法不会使得用户代码太过难看。
In my experience, these functions are needed only rarely in entry actions so this workaround should not uglify user code too much.
依赖传统的损失分布理论,财产损失分布模型拟合的优劣往往取决于经验分布函数的选择和参数的确定。
With traditional theory of loss distribution, the goodness of fit of the property loss distribution model depends on the choice of the experience distribution function and parameters.
利用基于经验的成本函数估算成本需要一些统计技术,这些技术将建造或运营某设施与系统的一些重要特征或属性联系起来。
Empirical estimation of cost functions requires statistical techniques which relate the cost of constructing or operating a facility to a few important characteristics or attributes of the system.
模糊优化算法中隶属函数的确定及专家系统中专家的知识、经验和规则的获取都是棘手的问题。
It is difficult to determine the membership function in fuzzy optimization method and to obtain the knowledge, experience and rules in expert system.
自适应神经网络模糊推理系统(ANFIS)能基于数据建模,无须专家经验,自动产生模糊规则和调整隶属度函数。
Applying Adaptive Neural-Fuzzy Inference System (ANFIS) can produce fuzzy rules and adjust membership functions automatically based on data without experience of experts.
本文讨论了如何利用专家经验和样本训练得到启发评价函数,并得到一种修正算法。
This paper discusses how to make use of experts', experience and specimen train to get the inspired evaluating functions, and a revised algorithm of the heuristic scouting algorithm has been obtained.
讨论了经验模态分解方法及其在获取固有模态函数过程中的自适应滤波特性。
The EMD method and its adaptive filtering property in the process of obtaining the intrinsic mode function(IMF) were discussed.
除了直接好处外,使用纯函数还可对从函数转换角度考虑问题提供宝贵的经验。
In additional to their immediate benefits, using pure functions provides valuable experience in thinking about problems from a functional transformation perspective.
在经验法则中,轴承承载力是轴承转速和轴承设计面积的线性函数。
It is shown that load capacity is a linear function of bearing surface velocity and bearing projected area.
本文对利用经验格林函数法合成断层附近的强地面运动等问题做了初步研究。
In this paper, some studies are made for synthesizing strong ground motions near fault by using empirical Greens function.
另一种是含有知识人工神经元的人工神经网络(NNKBN),其知识人工神经元的活化函数是由扩展的经验公式构成。
The other is the neural network with knowledge-based neurons (NNKBN) where extended prior knowledge analytic formulas work as activation functions of the neurons.
计算基本SV模型和杠杆效应SV模型的联合特征函数,借助经验特征函数方法估计这两个SV模型。
The characteristic functions of basic SV model and SV model with leverage effect are derived, an estimation (method) of SV models via empirical characteristic function is discussed in this paper.
给出了描述稳定剂浓度与悬浮液分层时间之间函数关系的经验公式。
The functional relationship between the concentrations of the stabilizing agent and the separating time of the suspensions is given .
本文综述了其中的两个问题:截断数据的经验分布函数以及截断数据的线性回归分析。
In this paper we shall discuss two topics: the empirical distribution function of censored data and the Linear regression with censored data.
然后结合线性指数模型未知参数在相同损失函数之下的贝叶斯估计得到了未知参数的非参数经验贝叶斯估计。
In combination with the Bayes estimator for the parameter of linear exponential model under the same loss function, the nonparametric empirical Bayes estimator of the unknown parameter was obtained.
首先利用非对称的LINEX损失函数对双指数分布族刻度参数进行了经验贝叶斯估计,并讨论了该估计的性质,给出了收敛速度。
First, we obtain the empirical Bayesian estimator of the scale parameter for the double exponential distribution based on LINEX loss function and the convergence rate of the estimate.
考虑随机截尾试验中有些试验产品无故障数据出现,提出采用平均秩次法计算经验分布函数。
Because some products show no failure in the random truncation test period, this paper USES the mean rank order method to calculate the empirical cumulative distribution function.
在汛期分期的基础上,对经验隶属函数进行曲线拟合得到理论隶属度,其为防洪限制水位线提供理论支持;
The curve fitting is made for the experience subjection function, on the basis of flood period division, in order to provide theory support for flood limit level;
在生产活动和科学技术分析中,需要一些常用的简单初等函数来拟合经验公式。
In productive activity and scientific analysis, some common simple primary functions are used to fit empirical equation.
在生产活动和科学技术分析中,需要一些常用的简单初等函数来拟合经验公式。
In productive activity and scientific analysis, some common simple primary functions are used to fit empirical equation.
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