The Lifecycles of Apps in a Social Ecosystem
Isabel Kloumann, Lada Adamic, Jon Kleinberg, Shaomei Wu

TL;DR
This paper analyzes the lifecycle of Facebook apps by examining their temporal engagement patterns and social ecosystem influences, introducing models for user retention, adoption, and success prediction.
Contribution
It presents a novel framework combining temporal and social analysis of apps, including a retention model and sociality-popularity axes for understanding adoption dynamics.
Findings
Retention model with small parameter set
Adoption probability depends on local network and attribute match
Models effectively predict app success
Abstract
Apps are emerging as an important form of on-line content, and they combine aspects of Web usage in interesting ways --- they exhibit a rich temporal structure of user adoption and long-term engagement, and they exist in a broader social ecosystem that helps drive these patterns of adoption and engagement. It has been difficult, however, to study apps in their natural setting since this requires a simultaneous analysis of a large set of popular apps and the underlying social network they inhabit. In this work we address this challenge through an analysis of the collection of apps on Facebook Login, developing a novel framework for analyzing both temporal and social properties. At the temporal level, we develop a retention model that represents a user's tendency to return to an app using a very small parameter set. At the social level, we organize the space of apps along two…
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