生成一个英文段落，介绍人工智能和机器学习之间的区别。
Artificial intelligence (AI) is a broad field that encompasses a range of techniques aimed at creating computer systems that can perform tasks typically requiring human intelligence. Machine learning is a specific subfield of AI that focuses on enabling computer systems to learn from data without being explicitly programmed. In other words, machine learning provides algorithms and statistical models that allow computers to learn from input data and make predictions or decisions based on that learning. While machine learning is an important component of AI, there are many other techniques and approaches being developed within the broader field of artificial intelligence.