NDLI: A comparison of distributed and centralised agent based bundling systems

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A comparison of distributed and centralised agent based bundling systems

Content Provider	ACM Digital Library
Author	Padget, Julian Gradwell, Peter
Abstract	The use of trading agents to manage the allocation and bundling of resources across computer networks is well established and literature to date has focused on a variety of auction and distributed market type mechanisms that use economic principles to determine the "best" allocation. An empirical analysis of a number of solver algorithms, principally the Centralised Combinatorial Auction Solver (CASS), has shown that those using bounded search techniques are typically able to solve a majority of cases in linear time, while there remain a number of outlier cases that are computationally problematic. In contrast, distributed mechanisms are intrinsically less than optimal for sellers, but demonstrate signifcantly less variance in computation time. A proper understanding of the different performance properties and suitability of the different techniques is necessary in order to make an informed choice between a distributed market and a centralised auction. Consequently, we have completed an empirical evaluation of CASS, a centralised mechanism, against two distributed mechanisms: (i) Multiple Distributed Auctions (MDAs) and (ii) Quote Driven Markets (QDMs). Uniquely, we carry out simulations of all three mechanisms using a common dataset, generated by the Combinatorial Auction Test Suite (CATS), providing a real basis for comparison. The main results presented are that distributed mechanisms deliver (i) increases in the number of items traded (ii) a greater proportion of bidder requirements being satisfied, but (iii) potentially less optimal bundle solutions and (iv) consistent run times with low overall variance when compared with centralised algorithms.
Starting Page	25
Ending Page	34
Page Count	10
File Format	PDF
ISBN	9781595937001
DOI	10.1145/1282100.1282108
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2007-08-19
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Combinatorial auctions Trading agents Quote driven market Allocation Distributed market performance Grid Resource
Content Type	Text
Resource Type	Article

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