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Gustavo Lunardon


Last seen: Today |  Active since 2020

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Spectral clustering: K-means replicates setting to improve reliability
Hello, The command spectralcluster in matlab can use k-means as part of its algortihm (and is the default in the options Clus...

7 månader ago | 1 answer | 0

1

answer

Question


Self Organizing Map - objective function?
Given a dataset, the self organizing map command in MATLAB will assign the data to different clusters if run several times due t...

8 månader ago | 0 answers | 0

0

answers

Question


Partial Least Squares regression - confidence interval of the predicted variable (response)
Hello all, I am interested in obtaining confidence intervals for the response variable of PLS (Partial Least Squares Regres...

8 månader ago | 1 answer | 0

1

answer

Question


Test occupancy in arbitrary region - Monte Carlo Integration - Uniformity test
Hello all, I want to do a Monte Carlo integration (because integral limits make it nontrivial) and of course the sampling metho...

9 månader ago | 0 answers | 0

0

answers

Question


Optimization: difficult characteristics discontinuous + stiff + medium size (~20-30 variables) + constrained
Hello, I am looking for suggestions for algorithms that could cope with a difficult optimization problem. Of course, if it is f...

11 månader ago | 0 answers | 1

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answers

Question


Optimization: Reuse calculations from objective function in nonlinear constraints function
Hello, Is it possible to reuse calculations from one function in the other to save computational effort? Example: functio...

ungefär ett år ago | 2 answers | 0

2

answers

Question


Nonlinear constraint on optimization using ODE - system state involved
Hello, I need to incorporate a nonlinear constraint on my optimization problem but there is a ODE involved. The constraint in...

ungefär ett år ago | 1 answer | 0

1

answer

Question


Bug in equality checks? 28.15e-3 == 28.15/1000 false
Why does this happen? It does not regocnize equality on 7.48e-3 == 7.48/1000, but it does on 7.47e-3 == 7.47/1000 as well. Anoth...

nästan 2 år ago | 2 answers | 0

2

answers

Answered
Producing a NaN only where there is a NaN, zero otherwise
Added as an answer rather than a comment now X = [-inf, -1, -eps, 0, realmin, 2, 1+i, pi, flintmax, realmax, inf, NaN]; brok...

mer än 2 år ago | 3

Question


ODE Event - Terminal
Hello. I have a problem with my ode event. I want it to stop integration if one of the variables to be integrated is a complex n...

ungefär 3 år ago | 0 answers | 0

0

answers

Answered
how to stop ode45 when one of states reach certain value
This is confusing. In matlab help it says: An event occurs when value(i) is equal to zero. All answers in this post make it val...

ungefär 3 år ago | 0