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Loyalty is a big part of today's business because retaining a customer is cheaper than attracting a new one. This relationship also holds true in e-commerce. There are many programs on the Internet to enhance loyalty in the electronic environment, most of which can be summarized as frequent...
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A tree network is a collection of trees rooted at a common central node. Several types of network design problems can be viewed as requiring the formation of a spanning tree network of minimum length, subject to a bound on the sum of "weights" on the nodes of any component tree. Such problems...
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