Fill in the blanks." and are two dimensions in AI definitions by the authors if the textbook.

In the context of AI definitions as discussed in many textbooks, the two dimensions that are frequently mentioned are "intelligence" and "autonomy."

1. Intelligence refers to the ability of a system to perform tasks that would normally require human intelligence, such as learning, reasoning, problem-solving, perception, and language understanding.

2. Autonomy captures the degree to which a system can operate independently, making decisions without human intervention. This includes varying levels of decision-making abilities from simple rule-based actions to complex, self-learning systems.

These dimensions help in categorizing and understanding the capabilities of different AI systems and their applications in various fields.