Negative Sampling Clarification

HI Mentor,

Can you please clarify the below doubts ?

To generate negative example, we pick word randomly from the dictionary. And to select negative samples, we are using the author formula shown in the video end.

What is the difference between these two statements ? Bit of confused here

Where do these statements come from? Please give the week number and maybe a video title and time mark.

This video title is Negative Sampling came from course 5 week 2

When you say “author formula shown in the video end” are you referring to time mark 10:47?

That’s just a method of defining the statistical distribution you use to choose among the words in the vocabulary to be the negative sample targets.