Squaring and scripting the ESP game: trimming a GWAP to deep semantics

The ESP Game, like other Games With A Purpose (GWAP), tends to generate "surface semantics" tags. This article first discusses why this is the case, then proposes two approaches called "squaring" and "scripting" to collecting "deep semantics" tags that both consist in deploying the ESP Game in unconventional manners. It also reports on a very positive first experimental evaluation of the two approaches. It finally briefly discusses the relevance of squaring and scripting for other GWAPs than the ESP Game.