Incentive Systems in Multi-Level Markets for Virtual Goods
As an alternative to rigid DRM measures, ways of marketing virtual goods through multi-level or networked marketing have raised some
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Infrared Number Counts of AGN in the GOODS Fields
Using the known numbers and evolution of unobscured AGN, and assuming that there is a large number of corresponding obscured
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Infrared Properties of AGN in the GOODS Fields: AGN in Stellar Dominated High-z Galaxies
We present analysis of spectral energy distributions (SEDs) from mid-infrared through X-ray of a sample of 420 hard X-ray selected,
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Obscured AGN in Multiwavelength Surveys
Using a simple unification model for AGN, with a fixed ratio of obscured to unobscured AGN of 3:1, we explain
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Optical and near-infrared properties of submillimetre galaxies in the GOODS-North field
We investigate the photometric redshift distribution, colours and morphologies of a large sample of submillimetre sources in the GOODS-North region.
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A Gibbsian approach to potential game theory
In games for which there exists a potential, the deviation-from-rationality dynamical model for which each agent's strategy adjustment follows the
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Negotiating over Bundles and Prices Using Aggregate Knowledge
Combining two or more items and selling them as one good, a practice called bundling, can be a very effective
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Observational tests of the evolution of spheroidal galaxies and predictions for SIRTF/Spitzer cosmological surveys
Granato et al(2004) have elaborated a physically grounded model exploiting the mutual feedback between star-forming spheroidal galaxies and the active
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Science with Virtual Observatory Tools
The Virtual Observatory is now mature enough to produce cutting-edge science results. The exploitation of astronomical data beyond classical identification
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GALEX Detection of Lyman Break Galaxies at z=1 in the CDFS
The first large sample of Lyman Break Galaxies (LBGs) at z~1 is selected from GALEX Far-UV and Near-UV images of
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Statistical Modelling of Information Sharing: Community, Membership and Content
File-sharing systems, like many online and traditional information sharing communities (e.g. newsgroups, BBS, forums, interest clubs), are dynamical systems in
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AGN Unification: An Update
The paradigm for AGN unification is reviewed, in terms of its optical manifestation as obscuration in the equatorial plane and
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Bigger May Not Be Better: An Empirical Analysis of Optimal Membership Rules in Peer-To-Peer Networks
Peer to peer networks will become an increasingly important distribution channel for consumer information goods and may play a role
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Bundling Equilibrium in Combinatorial auctions
This paper analyzes individually-rational ex post equilibrium in the VC (Vickrey-Clarke) combinatorial auctions. If $Σ$ is a family of bundles
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Data Mining to Measure and Improve the Success of Web Sites
For many companies, competitiveness in e-commerce requires a successful presence on the web. Web sites are used to establish the
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Economic Models for Management of Resources in Grid Computing
The accelerated development in Grid and peer-to-peer computing has positioned them as promising next generation computing platforms. They enable the
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Linear Programming helps solving large multi-unit combinatorial auctions
Previous works suggested the use of Branch and Bound techniques for finding the optimal allocation in (multi-unit) combinatorial auctions. They
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Online Learning of Aggregate Knowledge about Non-linear Preferences Applied to Negotiating Prices and Bundles
In this paper, we consider a form of multi-issue negotiation where a shop negotiates both the contents and the price
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Opportunity Cost Algorithms for Combinatorial Auctions
Two general algorithms based on opportunity costs are given for approximating a revenue-maximizing set of bids an auctioneer should accept,
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Price Increases from Online Privacy
Consumers value keeping some information about them private from potential marketers. E-commerce dramatically increases the potential for marketers to accumulate
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