Results 31 to 40 of about 2,525,472 (291)

Correlating variables with different scale types: A new framework based on matrix comparisons

open access: yesMethods in Ecology and Evolution, 2023
Ecological variables may be expressed on four basic measurement scales (nominal, ordinal, interval or ratio), whereas circular variables and those combining a nominal state with other scale types are also common.
János Podani   +2 more
doaj   +1 more source

Learning from Incomplete Data [PDF]

open access: yes, 1994
Real-world learning tasks often involve high-dimensional data sets with complex patterns of missing features. In this paper we review the problem of learning from incomplete data from two statistical perspectives---the likelihood-based and the ...
Ghahramani, Zoubin, Jordan, Michael I.
core   +5 more sources

Mechanics Based Tomography: A Preliminary Feasibility Study

open access: yesSensors, 2017
We present a non-destructive approach to sense inclusion objects embedded in a solid medium remotely from force sensors applied to the medium and boundary displacements that could be measured via a digital image correlation system using a set of cameras.
Yue Mei   +4 more
doaj   +1 more source

Scalable Tensor Factorizations for Incomplete Data

open access: yes, 2010
The problem of incomplete data - i.e., data with missing or unknown values - in multi-way arrays is ubiquitous in biomedical signal processing, network traffic analysis, bibliometrics, social network analysis, chemometrics, computer vision, communication
Acar   +35 more
core   +1 more source

A fuzzified BRAIN algorithm for learning DNF from incomplete data [PDF]

open access: yes, 2011
Aim of this paper is to address the problem of learning Boolean functions from training data with missing values. We present an extension of the BRAIN algorithm, called U-BRAIN (Uncertainty-managing Batch Relevance-based Artificial INtelligence ...
Rampone, Salvatore, Russo, Ciro
core   +3 more sources

Hints of incomplete thermalization in RHIC data

open access: yes, 2005
The large elliptic flow observed in Au-Au collisions at RHIC is often put forward as a compelling evidence for the formation of a strongly-interacting quark-gluon plasma. The main argument is that the measured elliptic flow is as large as the value given
Adams)   +17 more
core   +1 more source

Map Generation from Large Scale Incomplete and Inaccurate Data Labels

open access: yes, 2020
Accurately and globally mapping human infrastructure is an important and challenging task with applications in routing, regulation compliance monitoring, and natural disaster response management etc..
Albrecht, Conrad   +6 more
core   +1 more source

Process reconstruction from incomplete and/or inconsistent data

open access: yes, 2004
We analyze how an action of a qubit channel (map) can be estimated from the measured data that are incomplete or even inconsistent. That is, we consider situations when measurement statistics is insufficient to determine consistent probability ...
Bu?ek   +9 more
core   +1 more source

Estimation of FAVAR Models for Incomplete Data with a Kalman Filter for Factors with Observable Components

open access: yesEconometrics, 2019
This article extends the Factor-Augmented Vector Autoregression Model (FAVAR) to mixed-frequency and incomplete panel data. Within the scope of a fully parametric two-step approach, the alternating application of two expectation-maximization algorithms ...
Franz Ramsauer   +2 more
doaj   +1 more source

Dynamic pattern matcher using incomplete data [PDF]

open access: yes, 1993
This invention relates generally to pattern matching systems, and more particularly to a method for dynamically adapting the system to enhance the effectiveness of a pattern match. Apparatus and methods for calculating the similarity between patterns are
Johnson, Gordon G., Wang, Lui
core   +1 more source

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