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Our mechanism's effectivity is within a constant fraction of the a posteriori optimally efficient resolution. Our mechanism's technical core is a variant of the net weighted bipartite matching drawback where not like prior variants in which one randomizes edge arrivals or bounds edge weights, we may revoke beforehand committed edges. Further, it bounds the earnings of speculators who're in the game to acquire the cancellation charges. Our mannequin allows the seller to cancel at any time any reservation made earlier, by which case the holder of the reservation incurs a utility loss amounting to a fraction of her worth for the reservation and may also receive a cancellation payment from the seller. They nonetheless hold if we replace items with components of a matroid and matchings with unbiased units, or if all bidders have additive value for a set of items. A vendor will show a set of slots in some unspecified time in the future T in the future. Many advertisers (bidders) use Internet systems to buy show advertisements on publishers’ webpages or on conventional media equivalent to radio, Tv and newsprint.
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发表于 2023-6-19 18:15:06
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