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» On Heuristic Time Hierarchies
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ISVC
2010
Springer
15 years 4 months ago
Indented Pixel Tree Plots
We introduce Indented Pixel Tree Plots (IPTPs): a novel pixel-based visualization technique for depicting large hierarchies. It is inspired by the visual metaphor of indented outli...
Michael Burch, Michael Raschke, Daniel Weiskopf
WEBI
2010
Springer
15 years 4 months ago
On Using Query Logs for Static Index Pruning
Static index pruning techniques aim at removing from the posting lists of an inverted file the references to documents which are likely to be not relevant for answering user querie...
Hoang Thanh Lam, Raffaele Perego, Fabrizio Silvest...
COR
2011
15 years 1 months ago
MIP models for connected facility location: A theoretical and computational study
This article comprises the first theoretical and computational study on mixed integer programming (MIP) models for the connected facility location problem (ConFL). ConFL combines...
Stefan Gollowitzer, Ivana Ljubic
CORR
2011
Springer
261views Education» more  CORR 2011»
15 years 1 months ago
Convex and Network Flow Optimization for Structured Sparsity
We consider a class of learning problems regularized by a structured sparsity-inducing norm defined as the sum of 2- or ∞-norms over groups of variables. Whereas much effort ha...
Julien Mairal, Rodolphe Jenatton, Guillaume Obozin...
TIT
2010
140views Education» more  TIT 2010»
15 years 1 months ago
On the analytic wavelet transform
An exact and general expression for the analytic wavelet transform of a real-valued signal is constructed, resolving the time-dependent effects of non-negligible amplitude and fre...
Jonathan M. Lilly, Sofia C. Olhede