Results 141 to 150 of about 3,856,070 (304)

New directions in algebraic statistics: Three challenges from 2023 [PDF]

In the last quarter of a century, algebraic statistics has established itself as an expanding field which uses multilinear algebra, commutative algebra, computational algebra, geometry, and combinatorics to tackle problems in mathematical statistics ...
Bakenhus, Miles, Gross, Elizabeth, Karwa, Vishesh, Hill, Max, Curiel, Mark, Lyu, Hanbaek, Petrović, Sonja, Rodriguez, Jose Israel, Kagy, Bryson, Gu, Yuqi, Alexandr, Yulia, Johnson, Joseph, Li, Jiayi, Deshpande, Sameer K., Deshpande, Sameer K.,, Petrović, Sonja,, Lyu, Hanbaek,, Gross, Elizabeth,, Alexandr, Yulia,, Bakenhus, Miles,, Karwa, Vishesh,, Rodriguez, Jose Israel,, Li, Jiayi,, Johnson, Joseph,, Kagy, Bryson,, Curiel, Maize,, Hill, Max,, Gu, Yuqi,   +27 more
core   +1 more source

SIM‐CaliRam: A workflow combining simulation‐informed references and biomass‐augmented features for in‐line Raman calibration of Saccharomyces cerevisiae

Biotechnology Progress, EarlyView.
SIM‐CaliRam combines simulation‐informed references and biomass‐augmented features for in‐line Raman calibration under sparse labels and biomass‐induced spectral confounding. Run‐wise calibration and validation enable prediction of biomass, glucose, ammonium, and phosphate on an unseen S. cerevisiae fed‐batch fermentation.
Terrance Wilms, Steffi Knorn
wiley   +1 more source

Better than Trees: Applying Semilattices to Balance the Accuracy and Complexity of Machine Learning Models

Machine Learning and Knowledge Extraction
Balancing the accuracy and the complexity of models is a well established and ongoing challenge. Models can be misleading if they are not accurate, but models may be incomprehensible if their accuracy depends upon their being complex.
Stephen Fox, Antonio Ricciardo
doaj   +1 more source

Diagnostic Agreement and Threshold Correspondence Between Resting Full‐Cycle Ratio and Nicorandil‐Based Fractional Flow Reserve in Intermediate Coronary Stenosis: A Prospective Single‐Center Registry

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background RFR has shown good aggregate agreement with FFR, including in prior Asian cohorts using intracoronary nicorandil. Where RFR‐FFR disagreement is concentrated relative to the FFR 0.80 decision boundary, and how the two binary thresholds correspond, remain incompletely characterized. Methods In a prospective single‐center registry, 300
Yonghoon Shin, Onyou Kim, Gi Won Yu, Yun Won Lee, Jung‐Joon Cha, Hyung Joon Joo, Jae Hyoung Park, Soon Jun Hong, Cheol Woong Yu   +8 more
wiley   +1 more source

Algebraic Theory of Inductive Mathematical Modeling: From Experimental Observations to State-Space Representations

Mathematics
In empirical sciences, the inductive construction of mathematical models relies on observations from controlled experiments, yet the conditions under which such constructions yield well-defined deterministic dynamics remain largely implicit.
Fan Xia, Tangdai Xia
doaj   +1 more source

Asymmetric Activation of Tropos Biphenolic Moieties by Isohexides: An Integrated Computational‐Experimental Approach

Chemistry – A European Journal, EarlyView.
The integrated experimental‐computational study on the asymmetric activation exerted by isohexides on tropos tetra‐aryl moieties embedded in a chiral macrocyclic architecture resulted in a complete definition of the stereochemical as well as stereodynamic features of the macrocyclic final compounds.
Giuseppe Fulvetti, Klara Mali, Filippo Lipparini, Anna Iuliano   +3 more
wiley   +1 more source

Boson–Fermion Algebraic Mapping in Second Quantization

Entropy
We present an algebraic method to derive the structure at the basis of the mapping of bosonic algebras of creation and annihilation operators into fermionic algebras, and vice versa, introducing a suitable identification between bosonic and fermionic ...
Fabio Lingua, Diego Molina Peñafiel, Lucrezia Ravera, Sebastián Salgado   +3 more
doaj   +1 more source

Algebraic Properties of Chromatic Polynomials and Their Roots [PDF]

, 2015
In this thesis we examine chromatic polynomials from the viewpoint of algebraic number theory. We relate algebraic properties of chromatic polynomials of graphs to structural properties of those graphs for some simple families of graphs.
Gilmore, Hamish Julian
core  

Laminar Burning Velocity of Ammonia‐Hydrogen Mixtures Predicted by Machine Learning

Chemie Ingenieur Technik, EarlyView.
Ammonia–hydrogen blends aid defossilization, but slow combustion kinetics require complex modeling. Although chemical kinetic modeling is computationally expensive, machine learning surrogates offer fast predictions. This study trained GPR, DT, and ANN models on 1445 experimental points.
Georg Klepp, Aditya Sharma, Helene Dörksen   +2 more
wiley   +1 more source

Review of CFD modelling techniques for single‐phase and multiphase flow in static mixers

The Canadian Journal of Chemical Engineering, EarlyView.
This review synthesizes computational fluid dynamics (CFD) approaches for static mixers, linking hydrodynamics to pressure drop, particle/droplet distributions, mixing metrics, and heat‐transfer performance to guide modelling choices and design decisions. Abstract Static mixers enable compact and low‐energy intensification.
Jussan Jaeger, Sálvio Lima de Carvalho Neto, Silvio Edegar Weschenfelder, Glaucia Rodrigues Vieira de Almeida da Fonseca, Maria de Fátima Rodrigues da Cunha, Selene Maria Arruda Guelli Ulson de Souza, Evandro Balestrin, Adriano da Silva   +7 more
wiley   +1 more source