Results 31 to 40 of about 9,222 (301)

A Reward Optimization Method Based on Action Subrewards in Hierarchical Reinforcement Learning

open access: yesThe Scientific World Journal, 2014
Reinforcement learning (RL) is one kind of interactive learning methods. Its main characteristics are “trial and error” and “related reward.” A hierarchical reinforcement learning method based on action subrewards is proposed to solve the problem of ...
Yuchen Fu   +3 more
doaj   +1 more source

Challenges in the Analysis of Mass-Throughput Data: A Technical Commentary from the Statistical Machine Learning Perspective

open access: yesCancer Informatics, 2006
Sound data analysis is critical to the success of modern molecular medicine research that involves collection and interpretation of mass-throughput data. The novel nature and high-dimensionality in such datasets pose a series of non-trivial data analysis
Constantin F. Aliferis   +2 more
doaj   +2 more sources

High-Dimensional Brain in a High-Dimensional World: Blessing of Dimensionality

open access: yesEntropy, 2020
High-dimensional data and high-dimensional representations of reality are inherent features of modern Artificial Intelligence systems and applications of machine learning.
Alexander N. Gorban   +2 more
doaj   +1 more source

Outlier Detection Based Feature Selection Exploiting Bio-Inspired Optimization Algorithms

open access: yesApplied Sciences, 2021
The curse of dimensionality problem occurs when the data are high-dimensional. It affects the learning process and reduces the accuracy. Feature selection is one of the dimensionality reduction approaches that mainly contribute to solving the curse of ...
Souad Larabi-Marie-Sainte
doaj   +1 more source

Mendelian Randomization and Double Machine Learning Modeling Reveal Brain Imaging‐Derived Phenotypes as Functional Contributors to 18 Autoimmune Inflammatory Diseases

open access: yesAdvanced Science, EarlyView.
This schematic integrates the eight statistically significant causal relationships identified between 1,366 brain imaging‐derived phenotypes (IDPs) and 18 autoimmune inflammatory diseases (AIDs). Arrows indicate the direction of causality inferred from bidirectional two‐sample MR analyses.
Jinbin Chen   +8 more
wiley   +1 more source

Projection Methods and the Curse of Dimensionality

open access: yesJournal of Mathematical Finance, 2018
We study the ability of three different projection methods to solve high-dimensional state space problems: Galerkin, collocation, and least squares projection. The curse of dimensionality can be reduced substantially for both Least Squares and Galerkin projection methods through the use of monomial formulas.
Heer, Burkhard, Maußner, Alfred
openaire   +3 more sources

Artificial Intelligence Revolution in Transcriptomics: From Single Cells to Spatial Atlases

open access: yesAdvanced Science, EarlyView.
Single‐cell RNA sequencing and spatial transcriptomics have unveiled cellular heterogeneity and tissue organization with unprecedented resolution. Artificial intelligence (AI) now plays a pivotal role in interpreting these complex data. This review systematically surveys AI applications across the entire analytic workflow and offers practical guidance ...
Shixin Li   +7 more
wiley   +1 more source

Multi-classification for high-dimensional data using probabilistic neural networks

open access: yesJournal of Radiation Research and Applied Sciences, 2022
Multi-classification tasks need sufficient information provided by the input data, whereas the input data lying in the high-dimensional space presents too sparse distributions to afford rich information, which creates trouble for multi-classification ...
Jingyi Li, Xiaojie Chao, Qin Xu
doaj   +1 more source

Recent Progress in Mechanoluminescence for Multi‐Dimensional Stress Monitoring

open access: yesAdvanced Science, EarlyView.
Multi‐dimensional stress visualization technology (0D point detection, 1D linear distribution, 2D planar imaging, 3D volume reconstruction) has become a focus of attention in the field of stress sensing. The transition from “points” to “multi‐dimensional spatial fields” facilitates real‐time, in situ, and high‐resolution visualization of stress ...
Xiuxia Yang   +3 more
wiley   +1 more source

Limit Theorems as Blessing of Dimensionality: Neural-Oriented Overview

open access: yesEntropy, 2021
As a system becomes more complex, at first, its description and analysis becomes more complicated. However, a further increase in the system’s complexity often makes this analysis simpler.
Vladik Kreinovich, Olga Kosheleva
doaj   +1 more source

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