keywords = "genetic algorithms, genetic programming, ant colony
optimisation, elevator group supervisory control
system, genetic network programming, genetic operators,
hybrid algorithms",
abstract = "Genetic Network Programming (GNP), one of the extended
evolutionary algorithms was proposed, whose gene is
constructed by the directed graph. GNP is distinguished
from other evolutionary techniques in terms of its
compact structure and implicit memory function. GNP can
perform a global searching, but it lacks of the
exploitation ability. Since the behaviour of GNP is
characterized by the balance between exploitation and
exploration in the search space, we proposed a hybrid
algorithm in this paper that combines GNP with Ant
Colony Optimization (ACO). The genetic operators are
operated using the pheromone information in some
special generations. We applied the proposed hybrid
algorithm to a complicated real world problem, that is
, Elevator Group Supervisory Control System (EGSCS).
The simulation results showed the effectiveness of the
proposed algorithm.",