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» The Robustness of Level Sets
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MFCS
2005
Springer
16 years 10 days ago
Autoreducibility, Mitoticity, and Immunity
We show the following results regarding complete sets. • NP-complete sets and PSPACE-complete sets are many-one autoreducible. • Complete sets of any level of PH, MODPH, or th...
Christian Glaßer, Mitsunori Ogihara, Aduri P...
ICWSM
2009
15 years 4 months ago
High-level Features for Learning Subjective Language across Domains
In this paper, we propose to study the characteristics for analyzing subjective content in documents. For that purpose, we present and evaluate a novel method based on abstraction...
Gaël Dias, Dinko Dimchev Lambov, Veska Nonche...
SIBGRAPI
2005
IEEE
16 years 13 days ago
A Brief Account of the Relations between Gray-Scale Mathematical Morphologies
Mathematical morphology was originally conceived as a set theoretic approach for the processing of binary images. Approaches that extend classical binary morphology to gray-scale ...
Peter Sussner, Marcos Eduardo Valle
FIMI
2004
134views Data Mining» more  FIMI 2004»
15 years 8 months ago
Recursion Pruning for the Apriori Algorithm
Implementations of the well-known Apriori algorithm for finding frequent item sets and associations rules usually rely on a doubly recursive scheme to count the subsets of a given...
Christian Borgelt
ICDAR
2003
IEEE
16 years 4 days ago
Wavelet Diffusion for Document Image Denoising
To distinguish image features from high level noises, we propose to exploit the spatial correlations between wavelet coefficients by replacing the thresholding process with a dif...
Lixin Fan, Liying Fan, Chew Lim Tan