Bidder Support in Multi-Item Combinatorial Auctions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Combinatorial auctions, particularly multi-item multi-unit (MIMU) auctions, are complex for bidders to navigate due to their combinatorial nature, leading to difficulties in tracking auction status and determining winning bids, which limits their application in large-scale consumer-oriented markets.
Innovation Solution
A system that uses a processor to track sub-auction status, including values and last winning bids, and provides real-time bidder support information such as winning levels, deadness levels, winning bids, and live bids, facilitating allocative fairness and computational efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If combinatorial auctions are used to achieve allocative efficiency, then economic benefits are improved, but device complexity increases making it hard for bidders to participate
Solution Approach 1:
The patent introduces an intermediary information system that mediates between the complex auction mechanism and bidders. The system provides simplified bid status information (winning, dead, live) and support information (winning levels, deadness levels) that translates complex combinatorial auction state into actionable insights for bidders without reducing the underlying complexity of the auction mechanism.
Solution Approach 2:
The patent implements continuous feedback mechanisms that provide bidders with real-time information about their bid status and the current auction state. This feedback loop includes bid status notifications and support information queries that enable bidders to adjust their strategies based on current conditions, reducing the cognitive load of navigating complex combinatorial auctions.
2Adaptability or versatility
If the number of bundles increases exponentially with more items, then auction completeness is improved, but computational tractability deteriorates making winner determination NP-complete
Solution Approach 1:
The patent segments the complex winner determination problem into manageable sub-problems by decomposing the auction into sub-auctions based on bid types (OR bids and XOR bids). This segmentation allows the system to handle large-scale combinatorial auctions by processing smaller, independent sub-problems rather than attempting to solve the entire exponential search space at once.
Solution Approach 2:
The patent performs preliminary computations to pre-determine bid status and support information before the actual winner determination is needed. By calculating winning levels and deadness levels in advance and maintaining updated status information, the system prepares computational work ahead of time to handle the complexity of winner determination when it arises.
3Ease of operation
If bidders are provided with detailed auction status information, then bid formulation effectiveness is improved, but information processing complexity increases
Solution Approach 1:
The patent applies local quality by providing customized information differentials tailored to each bidder's specific situation. Instead of providing uniform detailed information to all bidders, the system provides bid status information and support information selectively based on each bidder's active bids, making the information processing complexity localized rather than global.
Solution Approach 2:
The patent uses simplified representations and summaries of complex auction state information. Rather than providing full detailed state information, the system creates simplified copies in the form of bid status indicators (winning, dead, live) and support information levels, which convey essential information with reduced processing complexity.
Data Source
AI summary
A system for bidder support in combinatorial auctions includes a machine readable storage medium storing instructions and a processor to execute the instructions throughout a duration of an auction. The processor executes the instructions to receive bids for a multi-item multi-unit (MIMU) combinatorial auction. The processor executes the instructions to track the status of each sub-auction of the MIMU auction. The status for each sub-auction includes a value of the respective sub-auction and a last winning bid of the respective sub-auction. The processor executes the instructions to determine bidder support information including winning levels, deadness levels, winning bids, and live bids based on the status of each sub-auction. The system/method is applicable to a number of different auction types, including the forward MIMU-OR and MIMU-XOR auctions, reverse MIMU-OR and MIMU-XOR auctions, as well as special cases of MIMU auctions (SIMU auctions and MISU auctions) and MIMU auctions with special bidding constraints (batch-based MIMU auctions and hierarchical MIMU auctions).