BlueCat Motors E-books > Mathematics > Bonus Algorithm for Large Scale Stochastic Nonlinear by Urmila Diwekar, Amy David

Bonus Algorithm for Large Scale Stochastic Nonlinear by Urmila Diwekar, Amy David

By Urmila Diwekar, Amy David

This ebook provides the main points of the BONUS set of rules and its actual global purposes in parts like sensor placement in huge scale ingesting water networks, sensor placement in complex strength platforms, water administration in energy platforms, and ability enlargement of power structures. A generalized procedure for stochastic nonlinear programming in line with a sampling established method for uncertainty research and statistical reweighting to procure likelihood details is established during this publication. Stochastic optimization difficulties are tough to resolve for the reason that they contain facing optimization and uncertainty loops. There are basic techniques used to unravel such difficulties. the 1st being the decomposition options and the second one technique identifies challenge particular buildings and transforms the matter right into a deterministic nonlinear programming challenge. those suggestions have major barriers on both the target functionality kind or the underlying distributions for the doubtful variables. furthermore, those equipment imagine that there are a small variety of situations to be evaluated for calculation of the probabilistic goal functionality and constraints. This e-book starts to take on those matters by way of describing a generalized process for stochastic nonlinear programming difficulties. This name is most fitted for practitioners, researchers and scholars in engineering, operations study, and administration technological know-how who need a entire figuring out of the BONUS set of rules and its purposes to the genuine global.

Show description

Read Online or Download Bonus Algorithm for Large Scale Stochastic Nonlinear Programming Problems PDF

Similar mathematics books

Mechanical System Dynamics

This textbook provides a transparent and thorough presentation of the elemental ideas of mechanical platforms and their dynamics. It presents either the speculation and functions of mechanical structures in an intermediate theoretical point, starting from the elemental recommendations of mechanics, constraint and multibody structures over dynamics of hydraulic platforms and gear transmission platforms to computer dynamics and robotics.

Extra info for Bonus Algorithm for Large Scale Stochastic Nonlinear Programming Problems

Example text

3 Quasi-Monte Carlo Methods Quasi-Monte Carlo methods seek to construct a sequence of points that perform significantly better than Monte Carlo, which has an average case of complexity of the order of 12 . For a suitably chosen set of samples, the quasi-Monte Carlo method 20 2 Uncertainty Analysis and Sampling Techniques provides a deterministic error bound of the order n−1 (log n)k−1 without any strong assumptions about the integrand. Some well-known quasi-Monte Carlo sequences are Halton, Hammersley, Sobol, Faure, Korobov and Neiderreiter [35].

D) Calculate i ωi . e) Estimate the probabilistic objective function and constraints values: i. Set i = 1, J k = 0. ii. While i < Nsamp , calculate: J k = Jik ∗ ωi / iii. i = i + 1. Go to step ii. i ωi . 2. 2. While d ≤ D, perturb one decision variable θdk to find θdk,Δ . Reset deterministic decision variable counter d = 1. a) Generate (i = 1 to Nsamp ) samples with the appropriate distributions at θdk,Δ for all variables uik . 2, using Eq. 6 in step ii instead. c) Determine the weights ωi from the product of ratios, ΠS fs (uik )/fˆs (ui ).

Frequently used variance reduction sampling methods are importance sampling, Latin Hypercube Sampling, descriptive sampling and Hammersley Sequence Sampling (HSS). HSS is based on quasi-random numbers generated using Hammersley sequences. HSS is found to be 3 to 100 times faster than other sampling techniques. 4 Summary Pm scaled probabilities R integer in R-radix notation xi , Xi random number → xk (n) Um Hammersley points samples from uniform distribution (U(0,1)) Greek letters error σ standard deviation ϕ(n) inverse radix function for n 25 Chapter 3 Probability Density Functions and Kernel Density Estimation Stochastic modeling loop in the stochastic optimization framework involves dealing with evaluation of a probabilistic objective function and constraints from the output data.

Download PDF sample

Rated 4.76 of 5 – based on 37 votes