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» Definability as hypercomputational effect
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SIGECOM
2008
ACM
220views ECommerce» more  SIGECOM 2008»
13 years 8 months ago
Better redistribution with inefficient allocation in multi-unit auctions with unit demand
For the problem of allocating one or more items among a group of competing agents, the Vickrey-Clarke-Groves (VCG) mechanism is strategy-proof and efficient. However, the VCG mech...
Mingyu Guo, Vincent Conitzer
SIGIR
2008
ACM
13 years 8 months ago
Directly optimizing evaluation measures in learning to rank
One of the central issues in learning to rank for information retrieval is to develop algorithms that construct ranking models by directly optimizing evaluation measures used in i...
Jun Xu, Tie-Yan Liu, Min Lu, Hang Li, Wei-Ying Ma
SIGIR
2008
ACM
13 years 8 months ago
Relevance assessment: are judges exchangeable and does it matter
We investigate to what extent people making relevance judgements for a reusable IR test collection are exchangeable. We consider three classes of judge: "gold standard" ...
Peter Bailey, Nick Craswell, Ian Soboroff, Paul Th...
SIGIR
2008
ACM
13 years 8 months ago
Learning to reduce the semantic gap in web image retrieval and annotation
We study in this paper the problem of bridging the semantic gap between low-level image features and high-level semantic concepts, which is the key hindrance in content-based imag...
Changhu Wang, Lei Zhang 0001, Hong-Jiang Zhang
SIMPRA
2008
131views more  SIMPRA 2008»
13 years 8 months ago
Distributed simulation of DEVS and Cell-DEVS models in CD++ using Web-Services
: DEVS is a Modeling and Simulation formalism that has been widely used to study the dynamics of discrete event systems. Cell-DEVS is a DEVS-based formalism that defines spatial mo...
Gabriel A. Wainer, Rami Madhoun, Khaldoon Al-Zoubi