Results 61 to 70 of about 580,959 (153)

Data-derived subtypes of delirium during critical illnessResearch in context

EBioMedicine
Summary: Background: To understand delirium heterogeneity, prior work relied on psychomotor symptoms or risk factors to identify subtypes. Data-driven approaches have used machine learning to identify biologically plausible, treatment-responsive ...
Kelly M. Potter, Jason N. Kennedy, Chukwudi Onyemekwu, Niall T. Prendergast, Pratik P. Pandharipande, E Wesley Ely, Christopher Seymour, Timothy D. Girard   +7 more
doaj   +1 more source

Tensor decompositions for learning latent variable models [PDF]

, 2014
This work considers a computationally and statistically efficient parameter estimation method for a wide class of latent variable models---including Gaussian mixture models, hidden Markov models, and latent Dirichlet allocation---which exploits a certain
Anandkumar, Anima, Ge, Rong, Hsu, Daniel, Kakade, Sham M., Telgarsky, Matus   +4 more
core   +5 more sources

Symptom characteristics of stroke patients latent class analysis

Huli yanjiu, 2018
Objective:To classify the symptom characteristics of stroke patients and to explore the differences in demographic characteristics and disease characteristics between patients with different symptom categories.Methods:A total of 275 hospitalized stroke ...
石丹, 李铮, 杨坚, 刘邦忠, 夏会   +4 more
doaj  

Multimorbidity impacts cardiovascular disease risk following percutaneous coronary intervention: latent class analysis of the Melbourne Interventional Group (MIG) registry

BMC Cardiovascular Disorders
Background Multimorbidity is strongly associated with disability or functional decline, poor quality of life and high consumption of health care services.
Chau Le Bao Ho, Si Si, Angela Brennan, Tom Briffa, Dion Stub, Andrew Ajani, Christopher M Reid   +6 more
doaj   +1 more source

Determinants of Cross-Border Bank Acquisitions in Transition Economies: A Latent Class Analysis [PDF]

We analyze the microeconomic determinants of cross-border bank acquisitions in 16 transition economies over the period 1996-2006. By using a latent class discrete choice model we explicitly incorporate the macroeconomic and institutional heterogeneity of
Jakob de Haan, Tigran Poghosyan
core  

The Matrix Ridge Approximation: Algorithms and Applications [PDF]

, 2013
We are concerned with an approximation problem for a symmetric positive semidefinite matrix due to motivation from a class of nonlinear machine learning methods. We discuss an approximation approach that we call {matrix ridge approximation}.
Zhang, Zhihua
core  

Do opening hours and unobserved heterogeneity affect economies of scale and scope in postal outlets? [PDF]

The purpose of this study is to analyze the cost structure of Swiss Post’s postal outlets. In particular, the idea is to assess economies of scale and scope in post offices and franchised postal agencies.
Martin Koller, Massimo Filippini, Urs Trinkner   +2 more
core  

Latent Class Modeling and Typological Analysis [PDF]

, 1991
Series: Discussion Papers of the Institute for Economic Geography and ...
Ernste, Huib, Fischer, Manfred M.
core  

Biomarkers trajectories in critically ill patients with COVID-19 acute respiratory distress syndrome: insights from latent class growth analysis

BMC Pulmonary Medicine
Background Acute respiratory distress syndrome (ARDS) is a common condition requiring intensive care, with limited effective treatments due to its clinical and biological heterogeneity.
Fabiana Madotto, Fiorenza Ferrari, Gaetano Florio, Amedeo Guzzardella, Eleonora Carlesso, Carolyn S. Calfee, Kevin Delucchi, Vittorio Scaravilli, Mauro Panigada, Chiara Ferraris Fusarini, Marta Tornese, Elena Trombetta, Alberto Zanella, Giacomo Grasselli   +13 more
doaj   +1 more source

Latent class of depressive symptoms of and its determinants: A cross-sectional study among Iranian University students

Journal of Research in Medical Sciences
Background: According to the report of the World Health Organization, mental disorders are one of the 10 most important causes of disability in the world.
Forugh Aleebrahim, Zahra Heidari, Shahla Yousefnejad, Gholamreza Kheirabadi, Mohammad Javad Tarrahi   +4 more
doaj   +1 more source