Results 121 to 130 of about 201,170 (293)

Symmetric Double Normal Models for Censored, Bounded, and Survival Data: Theory, Estimation, and Applications

Mathematics
We develop a unified likelihood-based framework for limited outcomes built on the two-piece normal family. The framework includes a censored specification that accommodates boundary inflation, a doubly truncated specification on (0,1) for rates and ...
Guillermo Martínez-Flórez, Hugo Salinas, Javier Ramírez-Montoya   +2 more
doaj   +1 more source

Consumer Behaviour in Lotto Markets: The Double Hurdle Approach and Zeros in Gambling Survey Data [PDF]

Governments world-wide increasingly rely on gambling revenues, increasing the importance of understanding who gambles and why. Previous literature used Tobit and Heckman models to statistically analyze participation in gambling.
Humphreys, Brad, Lee, Yang Seung, Soebbing, Brian   +2 more
core  

Survival Models with Interval Censored Data

, 2020
Sansürleme, sağkalım analizi diğer istatistiksel yöntemlerden ayıran en önemli özelliktir. Sansürleme türleri ise sağdan, soldan ve aralıklı sansürleme olarak sınıflandırılmaktadır. Sağkalım analizinde kullanılan modellerin çoğu gözlemlerin sağdan sansürlü olduğu veri kümeleri için geliştirilmiştir.
ERÖZ, İlknur, ATA, Nihal
openaire   +1 more source

Extralevator Abdominoperineal Excision Improves Overall Survival Compared to Standard Abdominoperineal Excision: A Systematic Review and Meta‐Analysis

Annals of Gastroenterological Surgery, EarlyView.
This systematic review and meta‐analysis of 38 studies, encompassing over 5000 patients, compared extralevator abdominoperineal excision (ELAPE) with standard abdominoperineal excision (APE) in patients with advanced low rectal cancer. ELAPE was associated with significantly improved overall and disease‐free survival, reduced intraoperative perforation
Sarolta Beáta Kávási, Diana‐Elena Floria, Anett Rancz, Dániel Sándor Veres, Nándor Faluhelyi, Pál Miheller, Péter Hegyi, Szabolcs Ábrahám   +7 more
wiley   +1 more source

Comparison of Minimally Invasive Colectomy Between Intra‐ Versus Extra‐Corporeal Anastomosis Technique (COMMIT Study): Mid‐Term Analysis

Annals of Gastroenterological Surgery, EarlyView.
This multicenter retrospective cohort study compared mid‐term oncological outcomes between intracorporeal anastomosis (IA) and extracorporeal anastomosis (EA) in minimally invasive colectomy for colon cancer using propensity score–matched data from 2018 to 2022.
Takuya Takami, Takehito Yamamoto, Yoshiro Itatani, Ryosuke Mizuno, Shinya Hamasu, Keita Hanada, Kenji Kawada, Teppei Murakami, Satoshi Nagayama, Kazutaka Obama   +9 more
wiley   +1 more source

Research on Quantile Regression Method for Longitudinal Interval-Censored Data Based on Bayesian Double Penalty

Mathematics
The increasing prominence of the problem of censored data in various fields has made studying how to perform parameter estimation and variable selection in censored mixed-effects models one of the hotspots of current research.
Ke Zhao, Ting Shu, Chaozhu Hu, Youxi Luo
doaj   +1 more source

Comparison Between Upfront Surgery and Preoperative Chemotherapy for CY1P0 Gastric Cancer: A Japanese Sub‐Analysis of CONVO‐GC‐1

Annals of Gastroenterological Surgery, EarlyView.
ABSTRACT Background Radical gastrectomy, followed by adjuvant chemotherapy has been a common practice in Japan for peritoneal lavage cytology‐positive (CY1) but peritoneal dissemination‐negative (P0) stage IV gastric cancer. This study aimed to clarify the differences in treatment outcomes between upfront surgery and preoperative chemotherapy, followed
Kenichiro Furukawa, Itaru Yasufuku, Hironori Ishigami, Masahiro Yura, Takanobu Yamada, Shigeaki Baba, Takeshi Kubota, Erina Nagai, Seito Fujibayashi, Mitsumasa Yoshida, Takahiro Kinoshita, Nobuhisa Matsuhashi, Masanori Terashima   +12 more
wiley   +1 more source

Efficient Probabilistic Modelling of Corrosion Initiation in RC Structures Considering Non-Diffusive Barriers and Censored Data

Buildings
This article presents a probabilistic methodology for assessing corrosion initiation in reinforced concrete structures exposed to chloride ingress. The approach addresses key limitations of conventional analytical models by accounting for non-diffusive ...
Guilherme Henrique Rossi Vieira, Ritermayer Monteiro Teixeira, Leila Cristina Meneghetti, Sandoval José Rodrigues Júnior   +3 more
doaj   +1 more source

Multiobjective Environmental Cleanup with Autonomous Surface Vehicle Fleets Using Multitask Multiagent Deep Reinforcement Learning

Advanced Intelligent Systems, EarlyView.
This study presents a multitask strategy for plastic cleanup with autonomous surface vehicles, combining exploration and cleaning phases. A two‐headed Deep Q‐Network shared by all agents is traineded via multiobjective reinforcement learning, producing a Pareto front of trade‐offs.
Dame Seck, Samuel Yanes, Manuel Perales, Daniel Gutiérrez, Sergio Toral   +4 more
wiley   +1 more source

Parametric Estimation and Analysis of Lifetime Models with Competing Risks Under Middle-Censored Data

Applied Sciences
Middle-censoring is a general censoring mechanism. In middle-censoring, the exact lifetimes are observed only for a portion of the units and for others, we can only know the random interval within which the failure occurs.
Shan Liang, Wenhao Gui
doaj   +1 more source