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SIGIR
2012
ACM
13 years 4 months ago
Inferring missing relevance judgments from crowd workers via probabilistic matrix factorization
In crowdsourced relevance judging, each crowd worker typically judges only a small number of examples, yielding a sparse and imbalanced set of judgments in which relatively few wo...
Hyun Joon Jung, Matthew Lease
ATAL
2010
Springer
15 years 2 months ago
Honor among thieves: collusion in multi-unit auctions
We consider collusion in multi-unit auctions where the allocation and payments are determined using the VCG mechanism. We show how collusion can increase the utility of the collud...
Yoram Bachrach
ICDE
2010
IEEE
874views Database» more  ICDE 2010»
16 years 1 months ago
UV-Diagram: A Voronoi Diagram for Uncertain Data
The Voronoi diagram is an important technique for answering nearest-neighbor queries for spatial databases. In this paper, we study how the Voronoi diagram can be used on uncertain...
Reynold Cheng, Xike Xie, Man Lung Yiu, Jinchuan Ch...
PIMRC
2008
IEEE
15 years 8 months ago
Assessing link quality in IEEE 802.11 Wireless Networks: Which is the right metric?
—The accurate determination of the link quality is critical for ensuring that functionalities such as intelligent routing, load-balancing, power control and frequency selection o...
Aggelos Vlavianos, Lap Kong Law, Ioannis Broustis,...
CIKM
2008
Springer
15 years 3 months ago
Proactive learning: cost-sensitive active learning with multiple imperfect oracles
Proactive learning is a generalization of active learning designed to relax unrealistic assumptions and thereby reach practical applications. Active learning seeks to select the m...
Pinar Donmez, Jaime G. Carbonell