Abstract: Briefly, for an embodiment, as an example, a method may include recovering one or more cookies for a particular user based at least in part on one or more cookie maps.

Abstract: Method and system for managing online bidding are provided. A bid request is received via the communication platform. The bid request is analyzed to obtain information associated with the request. Whether to participate in online bidding is determined based on a bid control model in accordance with the information associated with the request. The bid control model is generated based on historical data associated with one or more previous online bidding events. An online bid is generated if it is determined to participate in the online bidding. The online bid is transmitted as a response to the bid request.

Abstract: A computer system that implements a method for optimizing an ad campaign may be configured to receive an online ad display request to display an ad to a viewer and obtain at least three probabilities—a first probability that the ad will receive a positive response from the viewer, a second probability that the ad will receive a neutral response from the viewer, and a third probability that the ad will receive a negative response from the viewer. Additionally, the computer system may also be configured to determine a gain value of displaying the ad; and determine a bidding price associated with the ad request based on the gain value.