Kidney Exchange in Dynamic Sparse Heterogenous PoolsReportar como inadecuado



 Kidney Exchange in Dynamic Sparse Heterogenous Pools


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Current kidney exchange pools are of moderate size and thin, as they consist of many highly sensitized patients. Creating a thicker pool can be done by waiting for many pairs to arrive. We analyze a simple class of matching algorithms that search periodically for allocations. We find that if only 2-way cycles are conducted, in order to gain a significant amount of matches over the online scenario matching each time a new incompatible pair joins the pool the waiting period should be -very long-. If 3-way cycles are also allowed we find regimes in which waiting for a short period also increases the number of matches considerably. Finally, a significant increase of matches can be obtained by using even one non-simultaneous chain while still matching in an online fashion. Our theoretical findings and data-driven computational experiments lead to policy recommendations.



Autor: Itai Ashlagi; Patrick Jaillet; Vahideh H. Manshadi

Fuente: https://archive.org/







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