Results 11 to 20 of about 24,706,792 (258)

Constrained LQR for Low-Precision Data Representation [PDF]

open access: yes, 2013
Performing computations with a low-bit number representation results in a faster implementation that uses less silicon, and hence allows an algorithm to be implemented in smaller and cheaper processors without loss of performance.
Kerrigan, Eric C.   +5 more
core   +1 more source

Mining Actuarial Risk Predictors in Accident Descriptions Using Recurrent Neural Networks

open access: yesRisks, 2020
One crucial task of actuaries is to structure data so that observed events are explained by their inherent risk factors. They are proficient at generalizing important elements to obtain useful forecasts.
Jean-Thomas Baillargeon   +2 more
doaj   +1 more source

Voxel selection in fMRI data analysis based on sparse representation [PDF]

open access: yes, 2009
Multivariate pattern analysis approaches toward detection of brain regions from fMRI data have been gaining attention recently. In this study, we introduce an iterative sparse-representation-based algorithm for detection of voxels in functional MRI (fMRI)
Namburi, Praneeth   +5 more
core   +1 more source

Design and Implementation of a Hybrid Ontological-Relational Data Repository for SIEM Systems

open access: yesFuture Internet, 2013
The technology of Security Information and Event Management (SIEM) becomes one of the most important research applications in the area of computer network security.
Igor Saenko   +3 more
doaj   +1 more source

A Survey of Data Representation for Multi-Modality Event Detection and Evolution

open access: yesApplied Sciences, 2022
The rapid growth of online data has made it very convenient for people to obtain information. However, it also leads to the problem of “information overload”.
Kejing Xiao, Zhaopeng Qian, Biao Qin
doaj   +1 more source

Group Sparsity and Graph Regularized Semi-Nonnegative Matrix Factorization with Discriminability for Data Representation

open access: yesEntropy, 2017
Semi-Nonnegative Matrix Factorization (Semi-NMF), as a variant of NMF, inherits the merit of parts-based representation of NMF and possesses the ability to process mixed sign data, which has attracted extensive attention. However, standard Semi-NMF still
Peng Luo, Jinye Peng
doaj   +1 more source

Transitive Sequencing Medical Records for Mining Predictive and Interpretable Temporal Representations

open access: yesPatterns, 2020
Summary: Electronic health records (EHRs) contain important temporal information about the progression of disease and treatment outcomes. This paper proposes a transitive sequencing approach for constructing temporal representations from EHR observations
Hossein Estiri   +8 more
doaj   +1 more source

A data structure for lattice representation

open access: yesTheoretical Computer Science, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
TALAMO, MAURIZIO, Vocca, P.
openaire   +4 more sources

Multiple Graph Regularized Concept Factorization With Adaptive Weights

open access: yesIEEE Access, 2018
Many traditional concept factorization methods employ single graph to approximate the manifold structure of data. Therefore, they cannot capture the underlying geometric structure hidden in data effectively.
Zhenqiu Shu   +5 more
doaj   +1 more source

Robust Graph Regularized Nonnegative Matrix Factorization

open access: yesIEEE Access, 2022
Nonnegative Matrix Factorization (NMF) has become a popular technique for dimensionality reduction, and been widely used in machine learning, computer vision, and data mining. Existing unsupervised NMF methods impose the intrinsic geometric constraint on
Qi Huang   +3 more
doaj   +1 more source

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