针对任务的要求，需要为停车管理公司的客户开发一个移动应用程序（支持Android和iOS），以下是建议选择的开发模型以及需要执行的任务和考虑： 开发模型选择 基于项目需求和约束，适合选择混合开发模型： 预测性部分：固定时间线（2025年2月1日至2025年7月31日）和明确的里程碑（例如5月1日的状态展示和6月15日的演示版本交付）适合规划明确的任务和依赖关系。 适应性部分：...

Project development processes Development approaches A development approach is the means used to create and evolve the product, service, or result during the project life cycle.[. . . ] Three ...

Managing software projects What is a project? A temporary endeavor undertaken to create a unique product, service, or result. {: .prompt-tip } A project must have ▶ beginning and end ▶ cle...

Latex中的希腊字母表 老是忘记怎么拼写，遂有此表 小写 大写 Latex命令 $\alpha$ $A$ \alpha $\beta$ $B$ \beta $\gamma$ ...

Using scikit-learn scikit-learn and pandas are the common tools for data science in python. import sklearn import numpy as np import matplotlib.pyplot as plt Scikit-learn sklearn has many of t...

k-Neighbours The kk-neighbours method is an instance-based learning algorithm. It remembers the training set and when a new data point is presented it looks for the closest kk samples from the tra...

Principal component analysis If we have many features, odds are that many are correlated. If there are strong relationships between features, we might not need all of them. With principal compone...

The curse of dimensionality One would think that the more features one has to describe samples in a dataset the better one would be able to perform a classification task. Unfortunately with the in...

Collective MPI Non-blocking Collective Communication Same idea as non-blocking peer-to-peer send/recv; now prepend call name with $I$ ⇒ Overlap computation and communication by making global...