Jittraporn Palakawong Na  Ayutthaya, Nuchsara  Kriengkorakot, Preecha  Kriengkorakot, Prasert  Sriboonchandr, 
    Multi-Floor Facility Layout Problems Solving by the
Differential Evolution Method,
    Journal of Engineering and Applied Sciences,
    Volume 15,Issue 5,
    2020,
    Pages 1106-1114,
    ISSN 1816-949x,
    jeasci.2020.1106.1114,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2020.1106.1114)
    Abstract: This research aimed to study the Differential Evolution (DE) for solving the Multi-floor Facility
Layout Problem. (MFLP) with the target of minimize the transporting material cost.The DE algorithm had been
evaluated and would be compared with MULTIPLE and SABLE algorithm. For MFLP, the Differential
Evolution algorithm (DE) methods were tested with 6 data sets as following: 11-1, 11-2, 12, 21-1, 21-2, 21-3
by using DE/rand/1/bin and DE/rand/2/bin which found that all methods able to find the optimal solution better
than the MULTIPLE. DE/rand/2/bin is having more effective than SABLE which calculate the comparison in
percentage ratio as followings: 3.7, 11.5, 0.1 and 21.7% of problems 11-1, 21-1, 21-2 and 21-3, respectively.
DE-rand/1-bin is having more effective than SABLE which calculate the comparison in percentage ratio as
followings: 3.5, 4.5 and 22.3% of problems 11-1, 21-1 and 21-3, respectively. The result showed that the further
performed DE by using basic DE were effective methods comparing to the other algorithms and other
metaheuristic methods. Hence, they could be used to solve MFLP.
    Keywords: Multi-floor facility layout;differential evolution;transporting material;optimal solution