Results 21 to 30 of about 770,485 (338)

Universal Target Learning: An Efficient and Effective Technique for Semi-Naive Bayesian Learning

open access: yesEntropy, 2019
To mitigate the negative effect of classification bias caused by overfitting, semi-naive Bayesian techniques seek to mine the implicit dependency relationships in unlabeled testing instances.
Siqi Gao   +4 more
doaj   +1 more source

LBPV for Recognition of Sign Language at Sentence Level: An Approach Based on Symbolic Representation

open access: yesJournal of Intelligent Systems, 2017
Recognition of signs made by deaf people to produce equivalent textual description for normal people to communicate with deaf people is an essential and challenging task for the pattern recognition and image processing research community.
Nagendraswamy H.S., Kumara B.M. Chethana
doaj   +1 more source

Bautin bifurcations of a financial system

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
This paper is concerned with the qualitative analysis of a financial system. We focus our interest on the stability and cyclicity of the equilibria. Based on some previous results, some notes are given for a class of systems concerning focus quantities ...
Bo Sang, Bo Huang
doaj   +1 more source

Power-aware scheduling of data-flow hardware circuits with symbolic control [PDF]

open access: yesArchives of Control Sciences, 2021
We devise a tool-supported framework for achieving power-efficiency of data-flowhardware circuits. Our approach relies on formal control techniques, where the goal is to compute a strategy that can be used to drive a given model so that it satisfies a ...
Mete Özbaltan, Nicolas Berthier
doaj   +1 more source

Proximity measures in symbolic data analysis

open access: yesStatistica, 2007
The Authors consider the general problem of similarity and dissimilarity measures in Symbolic Data Analysis. First of all they examine the classical definitions of elementary event, assertion object, hierarchical dependences and logical dependences. Then
Luciano Nieddu, Alfredo Rizzi
doaj   +1 more source

Selecting Informative Data Samples for Model Learning Through Symbolic Regression

open access: yesIEEE Access, 2021
Continual model learning for nonlinear dynamic systems, such as autonomous robots, presents several challenges. First, it tends to be computationally expensive as the amount of data collected by the robot quickly grows in time. Second, the model accuracy
Erik Derner   +2 more
doaj   +1 more source

Enhanced Symbolic Description in Analyzing Patterns and Volatility on the Forex Market [PDF]

open access: yesVietnam Journal of Computer Science, 2019
In this paper, we propose a novel approach for transforming financial time-series values into symbolic representation based on value changes. Such approach seems to have few advantages over the existing approaches; one of the most obvious is noise ...
Krzysztof Kania   +2 more
doaj   +1 more source

Descriptive statistics for symbolic interval-valued data

open access: yesThe Indian Journal of Agricultural Sciences, 2014
It is, by now, well recognized that real data are in intervals and not in points. Unfortunately, classical statistical theory is not capable of handling data in intervals. Here, methodology for drawing univariate and bivariate histograms and computation
H K RANGANATH, PRAJNESHU, HIMADRI GHOSH
doaj   +1 more source

An adaptation of COBWEB for symbolic data case

open access: yesStatistica, 2015
The paper proposes an extension for well-known COBWEB algorithm for different symbolic variable types. This extension allows to apply symbolic variables for category utility evaluation.
Marcin Pełka
doaj   +1 more source

Symbolic and non-symbolic predictors of number line task in Italian kindergarteners

open access: yesFrontiers in Psychology, 2023
The number line estimation task (NLE) is often used as a predictor for broader measures of mathematical achievement. In spite of its popularity, it is still not clear whether the task is based on symbolic or non-symbolic numerical competence.
Carla Meloni   +2 more
doaj   +1 more source

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