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The Triangular Csiszar-function is:
vi_triangular(logu, name = NULL)
triangular_of_u: float-like Tensor of the Csiszar-function evaluated at u = exp(logu).
float
Tensor
u = exp(logu)
float-like Tensor representing log(u) from above.
log(u)
name prefixed to Ops created by this function.
f(u) = (u - 1)**2 / (1 + u)
Warning: this function makes non-log-space calculations and may therefore be numerically unstable for |logu| >> 0.
|logu| >> 0
Other vi-functions#': vi_t_power(), vi_total_variation()
vi_t_power()
vi_total_variation()