The number of rows and columns of the three matrices A, B, and C are 3 rows, 2 columns, 2 rows, 3 columns, and 3 rows, 3 columns. Which of the following operations makes sense?

Which method is not supported to define variables in TensorFlow?

The following description of machine learning is correct?

Which of the following description about Python regular expression is not correct?

In order for a machine to be intelligent, it must be knowledgeable. Therefore, there is a research field in artificial intelligence. which mainly studies how computers automatically acquire knowledge and skills to achieve self-impr011emenL What is the branch of this research called?