Results 21 to 30 of about 15,189,898 (202)

A single-index quantile regression model and its estimation [PDF]

, 2012
Models with single-index structures are among the many existing popular semiparametric approaches for either the conditional mean or the conditional variance. This paper focuses on a single-index model for the conditional quantile. We propose an adaptive
Xia, Y., Kong, Efang, Kong, E., Xia, Yingcun   +3 more
core   +1 more source

Assessment of Regression Models for Predicting Rice Yield and Protein Content Using Unmanned Aerial Vehicle-Based Multispectral Imagery

Remote Sensing, 2021
Unmanned aerial vehicle-based multispectral imagery including five spectral bands (blue, green, red, red-edge, and near-infrared) for a rice field in the ripening stage was used to develop regression models for predicting the rice yield and protein ...
Yeseong Kang, Jinwoo Nam, Younggwang Kim, Seongtae Lee, Deokgyeong Seong, Sihyeong Jang, Chanseok Ryu   +6 more
doaj   +1 more source

A review of water quality index models and their use for assessing surface water quality

Ecological Indicators, 2021
The water quality index (WQI) model is a popular tool for evaluating surface water quality. It uses aggregation techniques that allow conversion of extensive water quality data into a single value or index.
Md. Galal Uddin, Stephen Nash, Agnieszka I. Olbert   +2 more
doaj   +1 more source

On Partially Linear Single-Index Models with Missing Response and Error-in-Variable Predictors

Journal of Statistical Theory and Applications (JSTA), 2019
In this paper, we consider a partially linear single-index model when missing responses and nonlinear regressors with measurement error are taken into account.
Tsung-Lin Cheng, Yin-Ying Lin, Xuewen Lu, Radhey Singh   +3 more
doaj   +1 more source

Prognostic value of automated computed tomography body composition in hepatocellular carcinoma: a volumetric versus single-slice comparison [PDF]

Journal of Liver Cancer
Background/Aims To compare the prognostic value of fully automated volumetric versus single-slice computed tomography (CT)-derived body composition analysis for predicting overall survival in patients with newly diagnosed hepatocellular carcinoma (HCC ...
Seok Jin Hong, Jeong Hee Yoon, Jae Hyun Kim, Jeongin Yoo, Jeong Min Lee   +4 more
doaj   +1 more source

Penalized single-index quantile regression [PDF]

, 2013
This article is made available through the Brunel Open Access Publishing Fund. Copyright for this article is retained by the author(s), with first publication rights granted to the journal.
Yu, K
core   +1 more source

Combining Random Forest and XGBoost Methods in Detecting Early and Mid-Term Winter Wheat Stripe Rust Using Canopy Level Hyperspectral Measurements

Agriculture, 2022
Appropriate modeling methods and feature selection algorithms must be selected to improve the accuracy of early and mid-term remote sensing detection of wheat stripe rust.
Linsheng Huang, Yong Liu, Wenjiang Huang, Yingying Dong, Huiqin Ma, Kang Wu, Anting Guo   +6 more
doaj   +1 more source

Single-index unascertained measure function.

, 2022
Single-index unascertained measure function.
Wenlong Li (571749), Sunmeng Wang (3707572), Yijun Liu (205209), Xingwang Pei (9311574), Qin Li (36669)   +4 more
core   +1 more source

Horizon states and the sign of their index in N $$ \mathcal{N} $$ = 4 dyons

Journal of High Energy Physics, 2021
Classical single centered solutions of 1/4 BPS dyons in N $$ \mathcal{N} $$ = 4 theories are usually constructed in duality frames which contain non-trivial hair degrees of freedom localized outside the horizon.
Aradhita Chattopadhyaya, Justin R. David
doaj   +1 more source

Calculation Models for Acoustic Analysis of St. Elizabeth of Hungary Church in Jaworzno Szczakowa

Archives of Acoustics, 2016
In parallel with research conducted using conventional methods, a uniform index method for assessing the acoustic quality of Roman Catholic churches has been developed.
Krzysztof KOSAŁA
doaj   +1 more source