Results 61 to 70 of about 24,905,387 (328)

Model checking for parametric single‐index quantile models

Stat, 2020
In this work, we construct a lack‐of‐fit test for testing parametric single‐index quantile regression models. We apply the kernel smoothing technique for the multivariate nonparametric estimation involved in this task. To avoid the “curse of dimensionality” in multivariate nonparametric estimation and to fully utilize the information contained in the ...
Liangliang Yuan, Wenhui Liu, Xuemin Zi, Zhaojun Wang   +3 more
openaire   +2 more sources

Infant Embryonal CNS Tumors: Molecular Insights and Treatment Considerations for Contemporary Pediatric Neuro‐Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan, Mariah Wright‐Nadkarni, Mohamed S. Abdelbaki, Girish Dhall   +3 more
wiley   +1 more source

Analysis of the Single Index Model Optimal Portfolio Using the Sharpe and Treynor Measurement Index Related to Covid-19

JTAM (Jurnal Teori dan Aplikasi Matematika)
The optimum portfolio is the preferred choice among investors for determining the most favorable combination of projected return and risk. This study seeks to ascertain the ideal portfolio performance of companies in the IDX30 index on the Indonesia ...
Yumna Hanum Salsabila, Evy Sulistianingsih, Naomi Nessyana Debataraja, Shantika Martha   +3 more
doaj   +1 more source

Risk Costs and the Choice of Market Return Index

Journal of Agricultural and Resource Economics, 1992
Six measures of returns are used to estimate the most "appropriate" market index for southeast Kansas farms. Results suggest that localized indices are more appropriate than state indices for use as the market index.
Koffi N. Amegbeto, Allen M. Featherstone
doaj   +1 more source

Provider and Parent Perspectives on Prioritizing the “Asking and Monitoring” Pediatric Cancer Psychosocial Standards of Care

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The Standards for Psychosocial Care for Children with Cancer and Their Families (“Standards”) are evidence‐based guidelines for psychosocial care in pediatric oncology. Care related to the three “Asking and Monitoring” Standards—Assessment of Psychosocial Needs, Assessment of Financial Needs, and Monitoring Neurocognitive Problems ...
Julia B. Tager, Natalie Koskela‐Staples, Emily M. Pariseau, Michele Scialla, Kimberly Buff, Lori Wiener, Victoria Sardi Brown, Anne E. Kazak, Kimberly S. Canter   +8 more
wiley   +1 more source

An Optimal Stock Market Portfolio Proportion Model Using Genetic Algorithm

IJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2018
To reduce the amount of loss due to investment risk, an investor or stockbroker usually forms an optimal stock portfolio. This technique is done to get the maximum return of investment on shares to be purchased.
Wahyono Wahyono, Chasandra Puspitasari, Muhammad Dzulfikar Fauzi, Kasliono Kasliono, Wahyu Sri Mulyani, Laksono Kurnianggoro   +5 more
doaj   +1 more source

Air Quality Index Prediction in Six Major Chinese Urban Agglomerations: A Comparative Study of Single Machine Learning Model, Ensemble Model, and Hybrid Model

Atmosphere, 2023
Air pollution is a hotspot of wide concern in Chinese cities. With the worsening of air pollution, urban agglomerations face an increasingly complex environment for air quality monitoring, hindering sustainable and high-quality development in China. More
Binzhe Zhang, Min Duan, Yufan Sun, Yatong Lyu, Yali Hou, Tao Tan   +5 more
doaj   +1 more source

Safety and Effectiveness of a High‐Dose, Tailored Tissue Plasminogen Activator Therapy Protocol: A Joint Pediatric Hematology and Cardiac ICU Quality Improvement Initiative Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric thromboembolism is increasingly encountered in critical care. Systemic thrombolysis with tissue plasminogen activator (tPA) facilitates vessel or valve patency, yet pediatric‐specific protocols remain undefined, and safety concerns persist. Objective To evaluate the efficacy and safety of a tailored, prolonged systemic tPA
Eran Shostak, Oded Gilad, Yael Feinstein, Sigal Nakav, Ofer Schiller, Joanne Yacobovich   +5 more
wiley   +1 more source

Optimal Portfolio Analysis Using the Markowitz Model and Single Index Model on Jakarta Islamic Index (JII) Stocks: Historical Data 2022–2025

Indonesian Interdisciplinary Journal of Sharia Economics
This study analyzes and compares the construction of optimal Islamic stock portfolios using the Markowitz Model and the Single Index Model for stocks listed in the Jakarta Islamic Index (JII).
Cahaya Ningsih, Pipit Yunianingsih
doaj   +1 more source

Block Empirical Likelihood for Longitudinal Single-Index Varying-Coefficient Model

Journal of Applied Mathematics, 2013
In this paper, we consider a single-index varying-coefficient model with application to longitudinal data. In order to accommodate the within-group correlation, we apply the block empirical likelihood procedure to longitudinal single-index varying ...
Yunquan Song, Ling Jian, Lu Lin
doaj   +1 more source