How are tags weighed in search engines?

@oyenkai (4399)
Philippines
October 1, 2008 5:07am CST
I know the general idea of weighing tags like prioritization over stuff but HOW are prioritizations applied? Like in Full Text Searches for example... (for one, I don't think myLot applied such feature very well). ...I'm hoping to strike lucky and find someone who actually understands what I'm saying.
No responses