  A method of deriving the Hamiltonian of the interacting boson model, that is
based on the microscopic framework of the nuclear energy density functional, is
presented. The constrained self-consistent mean-field calculation with a given
energy density functional provides potential energy surface within the relevant
collective coordinates, which is subsequently mapped onto the expectation value
of the interacting-boson Hamiltonian in the boson condensate state. This
procedure completely determines the strength parameters of the IBM, and the
diagonalization of the mapped Hamiltonian yields excitation spectra and
transition rates for a given nucleus. Two recent applications of the method are
discussed, that is, the descriptions of the intruder states in Cadmium isotopes
and the octupole correlations in neutron-rich odd-mass Barium isotopes.
