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ICASSP
2011
IEEE
14 years 10 months ago
Maximum marginal likelihood estimation for nonnegative dictionary learning
We describe an alternative to standard nonnegative matrix factorisation (NMF) for nonnegative dictionary learning. NMF with the Kullback-Leibler divergence can be seen as maximisa...
Onur Dikmen, Cédric Févotte
ICDE
2011
IEEE
272views Database» more  ICDE 2011»
14 years 10 months ago
A continuous query system for dynamic route planning
—In this paper, we address the problem of answering continuous route planning queries over a road network, in the presence of updates to the delay (cost) estimates of links. A si...
Nirmesh Malviya, Samuel Madden, Arnab Bhattacharya
CORR
2011
Springer
139views Education» more  CORR 2011»
14 years 10 months ago
Volatility of Power Grids under Real-Time Pricing
—The paper proposes a framework for modeling and analysis of the dynamics of supply, demand, and clearing prices in power system with real-time retail pricing and information asy...
Mardavij Roozbehani, Munther Dahleh, Sanjoy K. Mit...
IWQOS
2011
Springer
14 years 9 months ago
OLIC: OnLine Information Compression for scalable hosting infrastructure monitoring
—Quality-of-service (QoS) management often requires a continuous monitoring service to provide updated information about different hosts and network links in the managed system. ...
Yongmin Tan, Xiaohui Gu, Vinay Venkatesh
DLOG
2011
14 years 10 months ago
Query Answering over SROIQ Knowledge Bases with SPARQL
W3C currently extends the SPARQL query language with so-called entailment regimes, which define how queries are evaluated using logical entailment relations. We describe a sound a...
Ilianna Kollia, Birte Glimm, Ian Horrocks