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PPDP
2010
Springer
15 years 28 days ago
Precise complexity analysis for efficient datalog queries
Given a set of Datalog rules, facts, and a query, answers to the query can be inferred bottom-up starting with the facts or top-down starting with the query. For efficiently answe...
K. Tuncay Tekle, Yanhong A. Liu
CORR
2007
Springer
110views Education» more  CORR 2007»
15 years 3 months ago
Graph Annotations in Modeling Complex Network Topologies
abstract such additional information as network annotations. We introduce a network topology modeling framework that treats annotations as an extended correlation profile of a net...
Xenofontas A. Dimitropoulos, Dmitri V. Krioukov, A...
ICDAR
2003
IEEE
15 years 8 months ago
Recognition of On-line Handwritten Mathematical Formulas in the E-Chalk System
In this article, we present a system for the recognition of on-line handwritten mathematical formulas which is used in the electronic chalkboard (E-chalk), a multimedia system for...
Ernesto Tapia, Raúl Rojas
HCI
2007
15 years 4 months ago
Modeling Human Bipedal Navigation in a Dynamic Three Dimensional Virtual Environment
The current research sought to construct a computational model of human navigation for virtual three dimensional environments. The model was implemented within the ACT-R cognitive ...
Mark D. Thomas, Daniel W. Carruth, Bryan Robbins, ...
132
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CSDA
2008
115views more  CSDA 2008»
15 years 3 months ago
Complex-valued ICA based on a pair of generalized covariance matrices
It is shown that any pair of scatter and spatial scatter matrices yields an estimator of the separating matrix for complex-valued independent component analysis (ICA). Scatter (re...
Esa Ollila, Hannu Oja, Visa Koivunen