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CIKM
2008
Springer
15 years 8 months ago
SoRec: social recommendation using probabilistic matrix factorization
Data sparsity, scalability and prediction quality have been recognized as the three most crucial challenges that every collaborative filtering algorithm or recommender system conf...
Hao Ma, Haixuan Yang, Michael R. Lyu, Irwin King
APPROX
2010
Springer
213views Algorithms» more  APPROX 2010»
15 years 7 months ago
Constructive Proofs of Concentration Bounds
We give a simple combinatorial proof of the Chernoff-Hoeffding concentration bound [Che52, Hoe63], which says that the sum of independent {0, 1}-valued random variables is highly ...
Russell Impagliazzo, Valentine Kabanets
DAGSTUHL
2007
15 years 7 months ago
Parallel Universes: Multi-Criteria Optimization
In this paper parallel universes are defined by their relation to multi-criteria optimization combined with an explicit or implicit link for the unambiguous identification of an ...
Claus Weihs, Heike Trautmann
ECEH
2007
98views Healthcare» more  ECEH 2007»
15 years 7 months ago
Integrating Context Information in a Mobile Environment using the eSana Framework
: Mobile devices are becoming ubiquitous in everyday’s life, their popularity and place independence are reasons for using these devices in different areas. One such area is elec...
Marco Savini, Henrik Stormer, Andreas Meier
ESANN
2007
15 years 7 months ago
Order in Complex Systems of Nonlinear Oscillators: Phase Locked Subspaces
Any order parameter quantifying the degree of organisation in a physical system can be studied in connection to source extraction algorithms. Independent component analysis (ICA) b...
Jan-Hendrik Schleimer, Ricardo Vigário