  We continue the studies of our earlier proposal for an AdS/CFT correspondence
for time-dependent supergravity backgrounds. We note that by performing a
suitable change of variables, the dual super Yang-Mills theory lives on a flat
base space, and the time-dependence of the supergravity background is entirely
encoded in the time-dependent couplings (gauge and axionic) and their
supersymmetric completion. This form of the SYM allows a detailed perturbative
analysis to be performed. In particular the one-loop Wilsonian effective action
of the boundary SYM theory is computed. By using the holographic UV/IR
relation, we propose a way to extract the bulk metric from the Wilsonian
effective action; and we find that the bulk metric of our supergravity
solutions can be reproduced precisely. While the bulk geometry can have various
singularities such as geodesic incompleteness, gauge theory quantum effects can
introduce higher derivative corrections in the effective action which can serve
as a way to resolve the singularities.
