Re: Clarification on Qn VIII

yes both are per click.

Rao

On Sun, Dec 11, 2011 at 1:32 PM, Kalin Jonas <kjonas@asu.edu> wrote:

I notice you replaced A's pay rate with per-click, did you also mean to replace B's rate with per-click?

On Sat, Dec 10, 2011 at 10:21 PM, Subbarao Kambhampati <rao@asu.edu> wrote:

In the first part of the question VIII, please change "per impression" to "per click" (basically, the advertiser won't pay

unless the user actually goes to the advertiser's page by clicking on the ad)

VIII. [3+3] A search engine has bids on advertisements from two advertisers, A and B. 

Assume that A and B want their ads to be shown w.r.t the same query Q.  Suppose further 

that the search engine cannot show more than one advertisement. A is willing to pay 20c 

per XXimpressionXX click   . B is willing to pay 10c per impression.  How should the search engine 

decide as to whose ad it should show? Pay particular attention to whether the  search 

engine has all the information to make a decision, and if it needs more information, how 

it will get it.