In the context of Calculus Variations for non-convex, vector variational problems, natural process going from a function $$\phi $$ to its quasiconvexification $$Q\phi is quite involved, and, most time, an impossible task. We propose look at reverse process, what might be called inverse quasiconvexification: start _0$$ , and find functions which _0=Q\phi . addition establishing few general princ...

Users' engagement with pervasive displays has been extensively studied, however, determining how their content is interesting remains an open problem. Tracking of body postures and gaze explored as indication attention; still, existing works have not able to estimate the interest passers-by from readily available data, such display viewing time. This article presents a simple yet accurate metho...