Results 41 to 50 of about 1,253,621 (308)

Clustering Evaluation in High-Dimensional Data [PDF]

open access: yes, 2016
Clustering evaluation plays an important role in unsupervised learning systems, as it is often necessary to automatically quantify the quality of generated cluster configurations. This is especially useful for comparing the performance of different clustering algorithms as well as determining the optimal number of clusters in clustering algorithms that
Nenad Tomašev, Miloš Radovanović
openaire   +2 more sources

Recession forecasting with high‐dimensional data [PDF]

open access: yesJournal of Forecasting, 2021
AbstractIn this paper, a large amount of different financial and macroeconomic variables are used to predict the U.S. recession periods. We propose a new cost‐sensitive extension to the gradient boosting model, which can take into account the class imbalance problem of the binary response variable.
openaire   +1 more source

Variable Selection and Parameter Tuning in High-Dimensional Prediction [PDF]

open access: yes, 2010
In the context of classification using high-dimensional data such as microarray gene expression data, it is often useful to perform preliminary variable selection.
Boulesteix, Anne-Laure   +1 more
core   +1 more source

Three-Dimensional Receiver Function Adjoint Tomography for High-resolution Seismic Array Imaging: Methodology and Applications in Southeastern Tibet

open access: yes, 2023
Receiver function data used in "Three-Dimensional Receiver Function Adjoint Tomography for High-resolution Seismic Array Imaging: Methodology and Applications in Southeastern ...
Xu, Mijian   +4 more
core   +1 more source

An efficient predictive analytics system for high dimensional big data

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
The excessive growth of high dimensional big data has resulted in a greater challenge for data scientists to efficiently obtain valuable knowledge from these data. Traditional data mining techniques are not fit to process big data.
Myat Cho Mon Oo, Thandar Thein
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

PaMPa-HD: A Parallel MapReduce-Based Frequent Pattern Miner for High-Dimensional Data [PDF]

open access: yes, 2015
Frequent closed itemset mining is among the most complex exploratory techniques in data mining, and provides the ability to discover hidden correlations in transactional datasets.
Pulvirenti, Fabio   +11 more
core   +1 more source

Outlier Detection in High Dimensional Data [PDF]

open access: yesJournal of Information & Knowledge Management, 2020
High-dimensional data poses unique challenges in outlier detection process. Most of the existing algorithms fail to properly address the issues stemming from a large number of features. In particular, outlier detection algorithms perform poorly on dataset of small size with a large number of features.
Firuz Kamalov, Ho Hon Leung
openaire   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Nicola17/High-Dimensional-Inspector: First Release

open access: yes, 2018
<p>Library for the scalable analysis of large high-dimensional data.</p> <p>It contains the A-tSNE and HSNE algorithms.</p ...
Thomas Höllt, Nicola Pezzotti
core   +1 more source

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