Summary: | This paper presents a very large scale neighborhood (VLSN) search algorithm for
the capacitated facility location problem with single-source constraints. The neigh-
borhood structures are induced by customer multi-exchanges and by facility moves.
We consider both single-customer multi-exchanges, detected on a suitably defined cus-
tomer improvement graph, and multi-customer multi-exchanges, detected on a facility
improvement graph dynamically built through the use of a greedy scheme. Compu-
tational results for some benchmark instances are reported, which demonstrate the
effectiveness of the approach for solving large-scale problems
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