Results 11 to 20 of about 15,189,898 (202)

Asymptotics of SGD in Sequence-Single Index Models and Single-Layer Attention Networks [PDF]

open access: yes
International audienceWe study the dynamics of stochastic gradient descent (SGD) for a class of sequence models termed Sequence Single-Index (SSI) models, where the target depends on a single direction in input space applied to a sequence of tokens. This
Arnaboldi, Luca   +4 more
core   +10 more sources

Variable selection for the single index model [PDF]

open access: yes, 2007
We consider variable selection in the single-index model. We prove that the popular leave-m-out crossvalidation method has different behaviour in the single-index model from that in linear regression models or nonparametric regression models.
Yingcun Xia   +5 more
core   +1 more source

Using single-index ODEs to study dynamic gene regulatory network. [PDF]

open access: yesPLoS ONE, 2018
With the development of biotechnology, high-throughput studies on protein-protein, protein-gene, and gene-gene interactions become possible and attract remarkable attention.
Qi Zhang, Yao Yu, Jun Zhang, Hua Liang
doaj   +1 more source

Identification of organic compounds using artificial neural networks and refractive index [PDF]

open access: yesJournal of the Serbian Chemical Society, 2023
Identification of chemical compounds has many applications in science and technology. However, this process still relies significantly on the knowledge and experience of chemists.
Kirigiti Innocent Abel   +2 more
doaj   +1 more source

Estimation of Single-Index Models Based on Boosting Techniques [PDF]

open access: yes, 2008
In single-index models the link or response function is not considered as fixed. The data determine the form of the unknown link function. In order to obtain a flexible form of the link function we specify the link function as an expansion in basis ...
Leitenstorfer, Florian, Tutz, Gerhard
core   +1 more source

Integrating Spectral Information and Meteorological Data to Monitor Wheat Yellow Rust at a Regional Scale: A Case Study

open access: yesRemote Sensing, 2021
Wheat yellow rust has a severe impact on wheat production and threatens food security in China; as such, an effective monitoring method is necessary at the regional scale.
Qiong Zheng   +8 more
doaj   +1 more source

Simplified Pediatric Index of Mortality 3 Score by Explainable Machine Learning Algorithm

open access: yesCritical Care Explorations, 2021
OBJECTIVES:. Pediatric Index of Mortality 3 is a validated tool including 11 variables for the assessment of mortality risk in PICU patients. With the recent advances in explainable machine learning algorithms, we aimed to assess feasibility of ...
Orkun Baloglu, MD   +4 more
doaj   +1 more source

Conditional regression for single-index models [PDF]

open access: yes, 2022
The single-index model is a statistical model for intrinsic regression where responses are assumed to depend on a single yet unknown linear combination of the predictors, allowing to express the regression function as $ \mathbb{E} [ Y | X ] = f ( \langle
Vigogna, Stefano   +8 more
core   +1 more source

Nearest neighbour imputation under single index models

open access: yesStatistical Theory and Related Fields, 2019
A popular imputation method used to compensate for item nonresponse in sample surveys is the nearest neighbour imputation (NNI) method utilising a covariate to defined neighbours.
Jun Shao, Lei Wang
doaj   +1 more source

Identification of multi-omics biomarkers and construction of the novel prognostic model for hepatocellular carcinoma

open access: yesScientific Reports, 2022
Genome changes play a crucial role in carcinogenesis, and many biomarkers can be used as effective prognostic indicators in various tumors. Although previous studies have constructed many predictive models for hepatocellular carcinoma (HCC) based on ...
Xiao Liu   +5 more
doaj   +1 more source

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