向量数据库是AI时代的基础设施之一，理解它的原理，能帮你更好地理解RAG、语义搜索、AI文档问答这些应用的技术本质。 你问AI："我昨天上传的合同里，甲方是谁来着？" AI能准确回答。背后的技术流程是：先把合同切成段落，每段变成一串数字（向量），存进 ...

Save your clicks with a few lines of Python code.

As artificial intelligence (AI) takes centre-stage across companies, Apple's machine learning research team has released ...

We can cast an ordinary python list as a NumPy one-dimensional array. We can also cast a python list of lists to a NumPy two-dimensional array. Usually we will build arrays by using NumPy's ...

JAX 是 Google 和 NVIDIA 联合开发的高性能数值计算库，这两年 JAX 生态快速发展，周边工具链也日益完善了。如果你用过 NumPy 或 PyTorch，但还没接触过 JAX，这篇文章能帮助你快速上手。 围绕 JAX 已经涌现出一批好用的库：Flax 用来搭神经网络，Optax 处理梯度和优化 ...

NumPy is ideal for data analysis, scientific computing, and basic ML tasks. PyTorch excels in deep learning, GPU computing, and automatic gradients. Combining both libraries allows fast data handling ...

本文将通过常用案例，帮助你快速掌握 NumPy 的核心用法。每个案例都包含代码示例和详细解释，确保代码可以直接运行。 NumPy (Numerical Python) 是 Python 中科学计算的基础库。它提供了一个强大的多维数组对象ndarray，以及大量的数学函数来操作这些数组。NumPy 数组 ...

Not only is the latter easier to read, it's hundreds of times faster than the for loop (and provides opportunities for hidden vectorization and parallelization). However, the Numpy abstraction stops ...

Python is convenient and flexible, yet notably slower than other languages for raw computational speed. The Python ecosystem has compensated with tools that make crunching numbers at scale in Python ...