### 计算机代写|深度学习代写deep learning代考|STAT3007

statistics-lab™ 为您的留学生涯保驾护航 在代写深度学习deep learning方面已经树立了自己的口碑, 保证靠谱, 高质且原创的统计Statistics代写服务。我们的专家在代写深度学习deep learning代写方面经验极为丰富，各种代写深度学习deep learning相关的作业也就用不着说。

• Statistical Inference 统计推断
• Statistical Computing 统计计算
• (Generalized) Linear Models 广义线性模型
• Statistical Machine Learning 统计机器学习
• Longitudinal Data Analysis 纵向数据分析
• Foundations of Data Science 数据科学基础

## 计算机代写|深度学习代写deep learning代考|Some Background on Darwin and Evolution

Charles Darwin formed his initial concepts and theory of natural selection based on his voyages around the continent of South America. From Darwin’s work, our thirst for understanding evolution drove our exploration into how life on earth shares and passes on selective traits using genetics.

Taking 2 decades to write in 1859 , Darwin published his most famous work “On the Origin of Species” a seminal work that uprooted the natural sciences. His work challenged the idea of an intelligent creator and formed the basis for much of our natural and biological sciences to this day. The following excerpt is from that book and describes the theory of natural selection in Darwin’s words:

“One general law, leading to the advancement of all organic beings, namely, multiply, vary, let the strongest live and the weakest die.”
Charles Darwin – On the Origin of Species
From this law Darwin constructed his theory of evolution and the need for life to survive by passing on more successful traits to offspring. While he didn’t understand the process of cellular mitosis and genetics, he did observe the selective passing of traits in multiple species. It wasn’t until 1865 that a German monk named Gregor Mendel would outline his theories of gene inheritance by observing 7 traits in pea plants.

Mendel used the term factors or traits to describe what we now understand as genes. It took almost another 3 decades before his work was recognized and the field of genetics was born. Since then, our understanding of genetics has grown from gene therapy and hacking to solving complex problems and evolving code.

## 计算机代写|深度学习代写deep learning代考|Applying Crossover – Reproduction

After the parents are selected, we can move on to applying crossover or essentially the reproduction process of creating offspring. Not unlike the cellular division process in biology, we simulate the combining of chromosomes through a crossover operation. Where each parent shares a slice of its gene sequence and combines it with the other parents.

Figure $2.9$ shows the crossover operation being applied using 2 parents. In crossover, a point is selected either randomly or using some strategy along the gene sequence. It is at this point the gene sequences of the parents are split and then recombined. In this simple example, we don’t care about what percentage of the gene sequence is shared with each offspring.

For more complex problems requiring thousands or millions of generations we may prefer more balanced crossover strategies rather than this random selection method. We will further cover the strategies we can use to define this operation later in the chapter.

In code the crossover operation first makes a copy of themselves to create the raw children. Then we randomly determine if there is a crossover operation using the variable crossover_rate. If there is a crossover operation then a random point along the gene sequence is generated as the crossover point. This point is used to split the gene sequence and then the children are generated by combining the gene sequences of both parents.

There are several variations and ways in which crossover may be applied to the gene sequence. For this example, selecting a random crossover point and then simply combining the sequences at the split point works. However, in some cases, particular gene sequences may or may not make sense in which case we may need other methods to preserve gene sequences.

## 计算机代写|深度学习代写deep learning代考|Some Background on Darwin and Evolution

1859 年，达尔文花了 2 年的时间写作，发表了他最著名的著作《物种起源》，这是一部颠覆自然科学的开创性著作。他的工作挑战了智能创造者的想法，并构成了我们今天大部分自然科学和生物科学的基础。以下摘自那本书，用达尔文的话描述了自然选择理论：

“一个普遍的规律，导致所有有机生物的进步，即繁殖，变异，让最强者生存，让最弱者死亡。”

## 有限元方法代写

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## MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中，其中问题和解决方案以熟悉的数学符号表示。典型用途包括：数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发，包括图形用户界面构建MATLAB 是一个交互式系统，其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题，尤其是那些具有矩阵和向量公式的问题，而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问，这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展，得到了许多用户的投入。在大学环境中，它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域，MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要，工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数（M 文件）的综合集合，可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。