Abstract: Aspects of the subject disclosure may include, for example, obtaining a session record including properties visited by a consumer during a sample period and extracting, from the session record, a select group of properties associated with a particular category of a predetermined taxonomy of various marketplaces. A breadth value of the select group of properties visited during the sample period is determined according to a number of unique properties of the select group of properties. A depth value of the properties visited during the sample period is also determined according to an extent of consumer interaction with content of properties of the select group of properties. A change point, indicating a state transition along a purchase cycle, is determined based on variations in distributions more than one of the breadth, depth, and recency values without relying on an assumption of a specific parametric family. Other embodiments are disclosed.