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只看該作者 · 發(fā)表于 2025-3-27 02:35:24

https://doi.org/10.1007/978-3-322-97796-0 been sketched in Chapter II. Most notable are the optimality of the greedy algorithm, nice polyhedral descriptions, and intersection results. In this chapter we explore the extension of some of these approaches to greedoids.

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只看該作者 · 發(fā)表于 2025-3-27 16:08:10

Greedoids on Partially Ordered Sets,nstan, Ingleton and Welsh [1972]. Here the independent sets correspond to nodes in a partially ordered set so that if . is independent, then the whole principal ideal of . consists of independent nodes and for any ., any two maximal independent nodes below . have the same height.

只看該作者 · 發(fā)表于 2025-3-27 19:48:16

只看該作者 · 發(fā)表于 2025-3-27 23:57:34

Greedoids978-3-642-58191-5Series ISSN 0937-5511 Series E-ISSN 2197-6783

只看該作者 · 發(fā)表于 2025-3-28 03:08:56

The Changing Landscape of the?Critical Care of Pediatric Immunocompromised Hematology and Oncology Patric intensive care units (PICUs) but have a disproportionately high mortality rate. A single-center study of 1278 patients admitted to a pediatric hematology-oncology service over an 11-year period found an admission rate of 4.2% with an overall PICU mortality rate of 38.9% (Faraci et al. J Pediat

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