Patent attributes
Embodiments are directed at determining a conversion rate and a latency distribution for an online campaign. The conversion rate indicates a ratio of an overall number of converted impressions to the number of previously provided impressions. The converted impressions are a subset of the set of previously provided impressions. One method includes receiving conversions from the campaign and determining an observed latency for the conversions. Each conversion is uniquely associated with one of the converted impressions. The observed latencies are based on a temporal difference between the conversion and the associated converted impression. The method simultaneously determines each of the conversion rate and parameters of the latency distribution. The latency distribution indicates a temporal distribution of the observed latencies. Determining the conversion rate and parameters of the distribution is based on employing a constraint or relationship between the conversion rate and the distribution and an interior point or Newton-Raphson method.