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Travelling salesman problem
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==Natural computation== When presented with a spatial configuration of food sources, the [[Amoeba|amoeboid]] ''[[Physarum polycephalum]]'' adapts its morphology to create an efficient path between the food sources, which can also be viewed as an approximate solution to TSP.<ref>{{citation|title=Computation of the travelling salesman problem by a shrinking blob|first1=Jeff|last1=Jones|first2=Andrew|last2=Adamatzky|journal=Natural Computing|date=2014|pages=2, 13 |url=http://www.phychip.eu/wp-content/uploads/2013/03/Computation-of-the-travelling-salesman-problem-by-a-shrinking-blob.pdf|bibcode=2013arXiv1303.4969J|arxiv=1303.4969}}</ref>
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