Results 61 to 70 of about 21,280,601 (295)

An Adaptive Unsupervised Feature Selection Algorithm Based on MDS for Tumor Gene Data Classification

open access: yesSensors, 2021
Identifying the key genes related to tumors from gene expression data with a large number of features is important for the accurate classification of tumors and to make special treatment decisions.
Bo Jin   +6 more
doaj   +1 more source

Exact Learning Augmented Naive Bayes Classifier

open access: yesEntropy, 2021
Earlier studies have shown that classification accuracies of Bayesian networks (BNs) obtained by maximizing the conditional log likelihood (CLL) of a class variable, given the feature variables, were higher than those obtained by maximizing the marginal ...
Shouta Sugahara, Maomi Ueno
doaj   +1 more source

ISHS-Net: Single-View 3D Reconstruction by Fusing Features of Image and Shape Hierarchical Structures

open access: yesRemote Sensing, 2023
The reconstruction of 3D shapes from a single view has been a longstanding challenge. Previous methods have primarily focused on learning either geometric features that depict overall shape contours but are insufficient for occluded regions, local ...
Guoqing Gao   +5 more
doaj   +1 more source

Supervised structure learning

open access: yesBiological Psychology
This paper concerns structure learning or discovery of discrete generative models. It focuses on Bayesian model selection and the assimilation of training data or content, with a special emphasis on the order in which data are ingested. A key move - in the ensuing schemes - is to place priors on the selection of models, based upon expected free energy.
Karl J. Friston   +12 more
openaire   +3 more sources

Learning with structured sparsity

open access: yesProceedings of the 26th Annual International Conference on Machine Learning, 2009
This paper investigates a new learning formulation called structured sparsity, which is a natural extension of the standard sparsity concept in statistical learning and compressive sensing. By allowing arbitrary structures on the feature set, this concept generalizes the group sparsity idea that has become popular in recent years.
Huang, Junzhou   +2 more
openaire   +2 more sources

An Information Criterion for Inferring Coupling of Distributed Dynamical Systems

open access: yesFrontiers in Robotics and AI, 2016
The behaviour of many real-world phenomena can be modelled by nonlinear dynamical systems whereby a latent system state is observed through a filter. We are interested in interacting subsystems of this form, which we model by a set of coupled maps as a ...
Oliver Michael Cliff   +3 more
doaj   +1 more source

Exploiting Cognitive Structure for Adaptive Learning

open access: yes, 2019
Adaptive learning, also known as adaptive teaching, relies on learning path recommendation, which sequentially recommends personalized learning items (e.g., lectures, exercises) to satisfy the unique needs of each learner.
Chang H.-S.   +8 more
core   +1 more source

The dynamics of syntax acquisition: facilitation between syntactic structures [PDF]

open access: yes, 2011
This paper sets out to show how facilitation between different clause structures operates over time in syntax acquisition. The phenomenon of facilitation within given structures has been widely documented, yet inter-structure facilitation has rarely been
Ben-Horin   +15 more
core   +1 more source

Structure Learning in Nested Effects Models

open access: yes, 2008
Nested Effects Models (NEMs) are a class of graphical models introduced to analyze the results of gene perturbation screens. NEMs explore noisy subset relations between the high-dimensional outputs of phenotyping studies, e.g. the effects showing in gene
Markowetz, Florian, Tresch, Achim
core   +3 more sources

Structured learning modulo theories

open access: yesArtificial Intelligence, 2017
Modelling problems containing a mixture of Boolean and numerical variables is a long-standing interest of Artificial Intelligence. However, performing inference and learning in hybrid domains is a particularly daunting task. The ability to model this kind of domains is crucial in "learning to design" tasks, that is, learning applications where the goal
Teso, Stefano   +2 more
openaire   +4 more sources

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