Results 51 to 60 of about 23,449,692 (250)

Portfolio Optimization of Stocks in Different Industries by Single-Index Model and Markowitz Model [PDF]

SHS Web of Conferences
In the financial sector, portfolio optimization is becoming more and more crucial. This article examines the portfolios of two industries, financial services and technology, in an effort to help prospective investors make decisions about their ...
Chen Mingrui
doaj   +1 more source

Identifying crop phenology using maize height constructed from multi-sources images

International Journal of Applied Earth Observations and Geoinformation, 2022
In agriculture, crop height is an important indicator that is commonly applied for monitoring physiological-related traits such as above-ground biomass and grain yields.
Yahui Guo, Yi Xiao, MingWei Li, Fanghua Hao, Xuan Zhang, Hongyong Sun, Kirsten de Beurs, Yongshuo H. Fu, Yuhong He   +8 more
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani, Rachel K. Peterson, Avani D. Rao, Laurie J. McKenzie, Ahmed Magdy Elmotayam, Leslie Chang, Michael Roth, Susan L. McGovern   +7 more
wiley   +1 more source

Single-Index Multinomial Model for Analyzing Crime Data

, 2023
We develop a flexible single-index multinomial model for analyzing crime data. In additionto the number of crimes reported, the data also includes covariates such as location, time of day, weather, and other demographic factors.
Duodu, Kwabena Gyamfi
core   +1 more source

Estimation in Single-Index Panel Data Models with Heterogeneous Link Functions [PDF]

In this paper, we study semiparametric estimation for a single-index panel data model where the nonlinear link function varies among the individuals. We propose using the refined minimum average variance estimation method to estimate the parameter in the
Jia Chen, Jiti Gao, Degui Li
core   +2 more sources

Direct Estimation of the Index Coefficient in a Single-Index Model

, 2001
Single-index modeling is widely applied in, for example, economet-ric studies as a compromise between too restrictive parametric models and flexible but hardly estimable purely nonparametric models.
Juditsky, Anatoli, Vladimir Spokoiny, Hristache, Marian, Anatoli Juditsky, Spokoiny, Vladimir, Marian Hristache   +5 more
core   +1 more source

Single-index estimation.

, 2023
Estimates of robustness and resilience for each country, obtained by calculating shock functions on single indices (Closure, Economic, Health, Mobility and epidemic) separately, rather than the composite index. Colours distinguish Proactive from Reactive
Pier Luigi Sacco (6735062), Manlio De Domenico (626037), Francesco Valle (83576)   +2 more
core   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben, Marisa H. Huisman, Martha A. Grootenhuis, Femke K. Aarsen, Marita Partanen   +4 more
wiley   +1 more source

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk, Sebastian Michaelis, Michaela Döring, Thomas Eichholz, Ursula Holzer, Martin Ebinger, Tim Flaadt, Rupert Handgretinger, Peter Lang, Jan Frederic Weller, Markus Mezger   +10 more
wiley   +1 more source

Estimation of the mean of the partially linear single-index errors-in-variables model with missing response variables

Journal of Inequalities and Applications, 2020
In this paper, we estimate the mean of the partially linear single-index errors-in-variables model with missing response variables. The linear covariate is measured with additive error, therefore missing is not random.
Xin Qi, ZhuoXi Yu
doaj   +1 more source