This problem is NP-complete and is also a generalization of the Traveling Salesman Problem. In this paper, we present a branch-and-bound algorithm for the exact solution of the Tree QAP based on an ...

The Kankakee River Basin and Yellow River Basin Development Commission, which met Thursday in Plymouth, allocated $500,000 for problem-tree and logjam work in Starke and LaPorte counties, said ...

Few developing countries participate in such schemes, yet it is urgent for them to do so as the extent of tree planting in the tropics is increasing rapidly for industrial and rural development.