Author Correction: World Wide Web

https://doi.org/10.1007/s11280-019-00692-y

The original version of this article unfortunately contained a mistake. In the originally published version, the acknowledgments information is missing. The article’s acknowledgments information is provided below:

Acknowledgments The authors are grateful to the Deanship of Scientific Research at King Saud University for funding this work through the Vice Deanship of Scientific Research Chairs: Chair of Pervasive and Mobile Computing.

The authors’ apologize for the oversight and for any confusion it may have caused.