What does "freedom" mean in the RankNet paper?

In the RankNet (Learning to Rank using Gradient Descent) paper, paragraph 3.1, it said

given the consistency requirements, how much freedom is there to choose the pairwise probabilities?

What does it mean?

Topic learning-to-rank ranking

Category Data Science

About

Geeks Mental is a community that publishes articles and tutorials about Web, Android, Data Science, new techniques and Linux security.