Results 21 to 30 of about 3,742,195 (269)

Univariate Probability-G Classes for Scattered Samples under Different Forms of Hazard: Continuous and Discrete Version with Their Inferences Tests

open access: yesMathematics, 2023
In this paper, we define a new generator to propose continuous as well as discrete families (or classes) of distributions. This generator is used for the DAL model (acronym of the last names of the authors, Dimitrakopoulou, Adamidis, and Loukas).
Mohamed S. Eliwa   +5 more
doaj   +1 more source

Detection of Changes in Oil Well Power Consumption Profile on the Basis of Dynamic Time Warping Algorithm

open access: yesProceedings of the International Conference on Applied Innovations in IT, 2018
At present oil companies are forced to continually decrease electric power inputs. However, energy efficiency of oil well equipment decreases in time. Well re-equipment enables to stop energy efficiency loss but it requires large additional inputs.
Ivan Luzyanin, Anton Petrochenkov
doaj   +1 more source

Statistical Data-Driven Model for Hardness Prediction in Austempered Ductile Irons

open access: yesMetals, 2022
This research evaluates the effect of temperature and time austempering on microstructural characteristics and hardness of ductile iron, validating the results by means of a statistical method for hardness prediction.
Nelly Abigaíl Rodríguez-Rosales   +8 more
doaj   +1 more source

Statistical Language Modelling [PDF]

open access: yes, 2003
Grammar-based natural language processing has reached a level where it can ‘understand’ language to a limited degree in restricted domains. For example, it is possible to parse textual material very accurately and assign semantic relations to parts of sentences.
Gotoh, Yoshihiko, Renals, Steve
openaire   +3 more sources

Modeling statistical metadata

open access: yesProceedings Thirteenth International Conference on Scientific and Statistical Database Management. SSDBM 2001, 2002
An object oriented statistical metadata model is presented, which can be used in building information systems providing metadata-guided, statistical data processing features. The semantics of the model are analyzed and a set of operators (transformations) is proposed that allows for the automatic manipulation of both data and metadata at the same time.
Haralambos Papageorgiou   +4 more
openaire   +2 more sources

临床预测模型常用统计模型及其SAS实现

open access: yesZhongguo cuzhong zazhi
摘要: 临床预测模型在医学研究中的应用越来越广泛,欲达到良好的预测性能,选择正确的模型非常关键。对于预测模型类型的选择,预测结局的类型起着决定性作用。本文从数据类型的角度出发,将结局变量分为连续变量(正态分布、偏态分布)、分类变量(二分类、无序多分类、有序多分类)以及时间-事件变量(无竞争风险、有竞争风险),分别介绍不同类型结局变量的特点、对应的模型、建模案例以及SAS实现程序,以期为研究者构建预测模型提供参考。 Abstract: The application of clinical ...
杨凯璇,谷鸿秋
doaj   +1 more source

Health‐Related Social Needs in Children With Sickle Cell Disease Are Associated With Worse Health‐Related Quality of Life

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks   +5 more
wiley   +1 more source

Predicting Cervical Cancer Outcomes: Statistics, Images, and Machine Learning

open access: yesFrontiers in Artificial Intelligence, 2021
Cervical cancer is a very common and severe disease in women worldwide. Accurate prediction of its clinical outcomes will help adjust or optimize the treatment of cervical cancer and benefit the patients.
Wei Luo
doaj   +1 more source

Are Fertility Preservation Procedures Before Gonadotoxic Therapy and Hematopoietic Stem Cell Transplantation Feasible and Safe in Very Young Children? A Retrospective Cohort Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Fertility preservation (FP) is increasingly integrated into the care of pediatric patients exposed to gonadotoxic therapy or conditioning for hematopoietic stem cell transplantation (HSCT), yet perioperative data in infants and toddlers remain scarce.
Kerstin Saalabian   +13 more
wiley   +1 more source

Statistical Model Development for Estimating Soil Hydraulic Conductivity Through On-Site Investigations

open access: yesHydrology
In arid regions, irrigated agriculture is mainly dependent on groundwater. In Pakistan, 73% of agricultural land is directly or indirectly irrigated through groundwater.
Muhammad Waleed   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy