Results 31 to 40 of about 3,606,574 (279)

Robust nearest-neighbor methods for classifying high-dimensional data [PDF]

open access: yes, 2009
We suggest a robust nearest-neighbor approach to classifying high-dimensional data. The method enhances sensitivity by employing a threshold and truncates to a sequence of zeros and ones in order to reduce the deleterious impact of heavy-tailed data ...
Chan, Yao-ban, Hall, Peter
core   +2 more sources

Program Evaluation and Causal Inference with High-Dimensional Data [PDF]

open access: yes, 2016
In this paper, we provide efficient estimators and honest confidence bands for a variety of treatment effects including local average (LATE) and local quantile treatment effects (LQTE) in data-rich environments. We can handle very many control variables,
Belloni, Alexandre   +3 more
core   +2 more sources

Artificial intelligence applications in cardio-oncology: Leveraging high dimensional cardiovascular data

open access: yesFrontiers in Cardiovascular Medicine, 2022
Growing evidence suggests a wide spectrum of potential cardiovascular complications following cancer therapies, leading to an urgent need for better risk-stratifying and disease screening in patients undergoing oncological treatment.
Haidee Chen   +5 more
doaj   +1 more source

Learning Discriminative Bayesian Networks from High-dimensional Continuous Neuroimaging Data [PDF]

open access: yes, 2015
Due to its causal semantics, Bayesian networks (BN) have been widely employed to discover the underlying data relationship in exploratory studies, such as brain research.
Liu, Lingqiao   +4 more
core   +3 more sources

High-dimensional data

open access: yesJournal of the National Science Foundation of Sri Lanka, 2016
This paper provides a brief introduction to high-dimensional data, a form of ‘Big Data’, and gives an overview of several data analysis concepts and techniques that could be used to explore and analyse such data. An example that involves genomics data from several Sri Lankan and United Kingdom oral cancer patients is used to illustrate the methods.
Dhammika Amaratunga, Javier Cabrera
openaire   +2 more sources

Finding k-Dominant G-Skyline Groups on High Dimensional Data

open access: yesIEEE Access, 2018
Skyline query retrieves a set of skyline points which are not dominated by any other point and has attracted wide attention in database community. Recently, an important variant G-Skyline is developed. It aims to return optimal groups of points. However,
Kaiqi Zhang   +3 more
doaj   +1 more source

A classification method for high‐dimensional imbalanced multi‐classification data

open access: yesElectronics Letters, 2023
High‐dimensional imbalanced multi‐classification problems (HDIMCPs) occur frequently in engineering applications such as medical detection, item classification, and email classification.
Mengmeng Li   +5 more
doaj   +1 more source

Consistent and Flexible Selectivity Estimation for High-dimensional Data

open access: yes, 2020
Selectivity estimation aims at estimating the number of database objects that satisfy a selection criterion. Answering this problem accurately and efficiently is essential to many applications, such as density estimation, outlier detection, query ...
Ishikawa, Yoshiharu   +7 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

Asymptotic inference for high-dimensional data

open access: yes, 2010
In this paper, we study inference for high-dimensional data characterized by small sample sizes relative to the dimension of the data. In particular, we provide an infinite-dimensional framework to study statistical models that involve situations in ...
Kuelbs, Jim, Vidyashankar, Anand N.
core   +1 more source

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