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ECWEB
2010
Springer
219views ECommerce» more  ECWEB 2010»
13 years 9 months ago
Semantic Tag Cloud Generation via DBpedia
Abstract. Many current recommender systems exploit textual annotations (tags) provided by users to retrieve and suggest online contents. The text-based recommendation provided by t...
Roberto Mirizzi, Azzurra Ragone, Tommaso Di Noia, ...
SPIRE
2010
Springer
13 years 7 months ago
Fingerprinting Ratings for Collaborative Filtering - Theoretical and Empirical Analysis
Abstract. We consider fingerprinting methods for collaborative filtering (CF) systems. In general, CF systems show their real strength when supplied with enormous data sets. Earl...
Yoram Bachrach, Ralf Herbrich
SIAMNUM
2011
102views more  SIAMNUM 2011»
12 years 11 months ago
Differential Equations for Roaming Pseudospectra: Paths to Extremal Points and Boundary Tracking
Abstract. When studying the ε-pseudospectrum of a matrix, one is often interested in computing the extremal points having maximum real part or modulus. This is a crucial step, for...
Nicola Guglielmi, Christian Lubich
SMC
2010
IEEE
124views Control Systems» more  SMC 2010»
13 years 7 months ago
SoftFacts: A top-k retrieval engine for ontology mediated access to relational databases
—We outline SoftFacts, an ontology mediated top-k information retrieval system over relational databases. An ontology layer is used to define (in terms of a OWL-QL like Semantic...
Umberto Straccia
IJAC
2006
53views more  IJAC 2006»
13 years 8 months ago
Subword Complexity of Profinite Words and Subgroups of Free Profinite Semigroups
Abstract. We study free profinite subgroups of free profinite semigroups of the same rank using, as main tools, iterated implicit operators, subword complexity and the associated e...
Jorge Almeida, Mikhail V. Volkov