BOB: Improved winner determination in combinatorial auctions and generalizations

Winner Determination in Combinatorial Auctions using Hybrid Ant Colony Optimization and Multi-Neighborhood Local Search

A combinatorial auction is an auction where the bidders have the choice to bid on bundles of items. The WDP in combinatorial auctions is the problem of finding winning bids that maximize the auctioneer’s revenue under the constraint that each item can be allocated to at most one bidder. The WDP is known as an NP-hard problem with practical applications like electronic commerce, production manag...

BOB: Improved Winner Determination in Combinatorial Au tions and Generalizations

Improved Algorithms for Optimal Winner Determination in Combinatorial Auctions and Generalizations

Combinatorial auctions can be used to reach efficient resource and task allocations in multiagent systems where the items are complementary. Determining the winners is NP-complete and inapproximable, but it was recently shown that optimal search algorithms do very well on average. This paper presents a more sophisticated search algorithm for optimal (and anytime) winner determination, including...

A Heuristic for Winner Determination in Rule-Based Combinatorial Auctions

Abstract Combinatorial auctions address the sale of materials where there exist complementarities between items. A major stumbling block to the widespread use of combinatorial auctions is the complexity of winner determination known to be NP-complete. We consider a rich version of combinatorial auctions, rule-based combinatorial auctions, where bids consist of rules that describe acceptable bun...

An improved Ant Colony Algorithm for Optimal Winner Determination Problem in Reverse Combinatorial Auction

Reverse Combinatorial auctions, that is, auctions where bidders can bid on the supply right of combinations of items, tend to lead to more efficient allocations than traditional auction mechanisms in multi-item auctions where the agents' valuations of the items are not additive. A common model is formulated for optimal the winner determination problem of reverse combinatorial auction. A PRIM (P...