Crowdsourcing Mobile Device Capabilities

This post introduces the challenge of diverse mobile device capabilities and how Facebook addresses it by rendering its mobile site differently for various devices. It highlights the reliance on WURFL for device mapping and details a significant effort to improve WURFL's accuracy by crowdsourcing mobile device capabilities from millions of users and employing programmatic experiments. The post explains the statistical methods used to derive device capability statistics from noisy user input and how this data is used to create WURFL patches. It also emphasizes the contribution of these findings back to the open-source WURFL project, demonstrating a commitment to improving the mobile web ecosystem.