The Google Adwords huge Quality Score leak
This week, the world got the unique opportunity to peak ever so slightly under the hood at Google. According to Eric Lander of Search Engine News, one of his associates noticed some numbers that just appeared under a sponsored search ad:
The Google Adwords Quality Score pictures looked like this:
As Eric and team point out, the 3 numbers represented are “Pscore”, “mCPC”, and thresh. I don’t think that anyone is exactly sure what to make of this, yet. Pscore is apparently a mathematical term which:
represents minus logarithm of the P-value. P-value measures the probability of achieving the same or better quality of match at a chance, i.e. at random picking the structures from the database. “Quality of match” is a complex characteristics, which accounts for RMSD, number of aligned residues Nalgn, number of gaps Ngaps, number of matched Secondary Structure Elements and the SSE match score. The higher P-score (the lower P-value), the more surprising, or statistically significant, is the match.
mCPC is likely “Max Cost Per Click”. This would make sense. Look at how high the mCPC is on the Honda ad, versus the smaller dealer. OUCH!
Though this information doesn’t provide us significant insight into Google Adwords, it does give us more clues about Google’s system.
