Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

Abstract: It's Lunchtime when your phone pings you with a green owl who cheerily reminds you to “Keep Duo Happy!” It's a nudge from Duolingo, the popular language-learning app, whose algorithms know ...

Duolingo is back at its antics, this time taking over spaces formerly occupied by another owl mascot. Duolingo, a language-learning platform, has posted "coming soon" banners on four shuttered Hooters ...

Trading one owl for another, mysterious Duolingo banners have appeared at several closed Hooters locations, including in Galveston and Beaumont. Also spotted in the St. Louis area, the banners feature ...

A “duolingo coming soon” sign featuring the brand’s green owl mascot, Duo, was draped across a shuttered Hooters in Galveston over the weekend, stirring speculation that the language learning app ...