Search for tag: "random walk"

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Colloquia_2020-11-10_Anthony_Kearsley_Edited duration 50 minutes 43 seconds Colloquia_2020-11-10_Anthony_Kearsley_Edited Colloquia_2020-11-10_Anthony_Kearsley_Edited	Colloquia_2020-11-10_Anthony_Kearsley_Edited Speaker: Anthony Kearsley, National Institute of Standards and Technology (NIST) Date: Tuesday November 10, 2020, 2:30 PMAbstract: For many years mathematical models that predict a cell’s… parabolic partial differential equations formal sciences melting temperature 1st thing process engineering atmospheric thermodynamics thermodynamics cell center tissues (biology) biological tissue mass transport solution cost function flux balance nist cooling technology racehorses trained in the united kingdom fluid flow spherically-symmetric model micro meter computational strategy chemical properties ice cell cell radius membrane latent heat stochastic processes cryopreservation water external temperature cooling rate similary solution wonderful collaborator thing amount optimal control objective functions control issues mathematical modeling temperature cooling blood cells rates function roughly speaking random walk boundary condition heat cryo threshold temperatures diffusion equation diffusion physical quantities vector calculus analytic solution problem cryo biology control sort living daylights analytical chemistry nice method cell wall caption complete free boundary problem red blood cell biology application length ice front classical problem terribly difficult circles temperature drops laboratory techniques ice formation partial differential equations fluid dynamics mathematical optimization cryogenics cryobiology liquid cpa heat moves organelles linear diffusion things similarity solution salt From Richard Ressler 15 plays 0
Colloquium_2020-09-22_Michael_Baron_Edited duration 1 hour 14 minutes Colloquium_2020-09-22_Michael_Baron_Edited Colloquium_2020-09-22_Michael_Baron_Edited	Colloquium_2020-09-22_Michael_Baron_Edited Title: Statistical analysis of epidemic counts data: modeling, detection of outbreaks, and recovery of missing data Speaker: Michael Baron Abstract: Official counts from the seasonal flu, 2009 H1N1… differential equations formal sciences stopping rule threshold bayesian statistics control theory change point analysis scripting languages population size total number weighted moving average infectious diseases mathematical and quantitative methods (economics) mathematical finance expected stopping expected number sequential analysis statistical inference research methods mortality rate actuarial science august 22nd rate swine flu adaptive threshold theory of probability distributions susceptible people false alarm sum statistical charts and diagrams basic reproduction number confirmed cases demography stochastic processes expected time recoveries recovery rate epidemiology binomial distribution medical tests current population size distribution change epidemics computational neuroscience exponentially weighted moving time series technical analysis conjugate prior distributions simple proportion current number neural networks probability point infected person epidemic sequential methods sir model actual data influenza epidemic question probability distributions medical statistics expected increment artificial intelligence expected behavior random walk infection joint distribution cases casualties population theories random component christian terminology infected people pandemics process stopping time moving average positive test caption complete design of experiments information officially confirmed lose people parameter bayesian algorithms sir neural net feedback loop population ecology data day moving average change point alarm covid-19 person stochastic modeling infection rate model officially reported temporal rates flu epidemic From Richard Ressler 26 plays 0
Colloquium_2020-10-13: Hitting objects with… duration 58 minutes 5 seconds Colloquium_2020-10-13: Hitting objects with… Colloquium_2020-10-13: Hitting objects with random walks	Colloquium_2020-10-13: Hitting objects with random walks Speaker: Dr. John P. Nolan Abstract: Random walks are a powerful tool for studying the structure of complicated objects. This talk describes the key ideas for classical Brownian motion and its… colloidal chemistry probability point statistical mechanics spheres chemical compounds 2 (number) mathematicians mathematical logic solutions hyperbolic space filename extensions dimensional space lévy processes surfaces capacity thing fractals simple rejection homogeneous spaces start location random variable expected number field theory special mention wiener process random walks vowel letters caption complete random walk stable process elementary shapes variants of random walks discrete approximation brownian motion elementary geometry continuous time random robert brown (botanist) independent increment problem topology randomness geometry characteristic dimension complicated shape algorithms distribution probability theory theoretical computer science alpha motion ball lot space object locations idea function dimensions region process problems things From Richard Ressler 24 plays 0