42. a. In what sense is learning by imitation similar to learning by supervised training?       b. In what sense is learning by imitation ­different from learning by supervised training?

QUESTION 27 Which of the following is the correct order of steps for learning in a supervised model?     input is received; an error signal is produced; backpropagation; weights are adjusted     an error signal is produced; input is received; backpropagation; weights are adjusted     backpropagation; input is received; an error signal is produced; weights are adjusted     backpropagation; an error signal is produced; input is received; weights are adjusted

The field of computer science known as "computer vision" investigates how computers can "see" and understand moving images. A computer's ability to "see" and interpret visual inputs, and then extrapolate complex information from that observation, is known as "computer vision," and may be put to use in a wide variety of applications in the field of machine learning. Explain If the haarcascade classifier can identify individuals, how does it do so?

Explain the key distinction between supervised and unsupervised learning with the use of an example.