Induced dipole moment and 'electronic polarization'
There's no difference basically, induced dipole moment is just the dipole moment which gets induced when the electronic cloud in an atom is no more symmetric about the nucleus due the external electric fields, consider this - you have an atom FIXED in a place so that its nucleus cant move(just assume it) and you bring a negative charge near it which repels the electrons slightly away from the nucleus and this new distorted atom can now just be considered as a dipole with a +ve charge(nucleus) and negative charge(displaced electronic cloud) though its not a point charge as you might have seen in most pictures of a dipole but effectively it behaves like one,
now dipole moment is proportional to the alpha, which means keeping the external field constant the atom with larger alpha will have larger dipole moment(p = Qa = alpha*E), alpha is the property of the elements/compounds,  if an atom has large alpha it just means that its electronic cloud would go more far from its stable configuration and hence large distance between -q and +q which will induce a large value of dipole moment than that of an atom with small alpha,