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Showing posts with the label Optimization

Scipy Minimisation Optimisation Row-wise On Dataframe

TYPO FIXEDD I need to perform a minimization optimisation for each timestep in my timeseries. The o… Read more Scipy Minimisation Optimisation Row-wise On Dataframe

Why My Multi-threading Program Is Slow?

I'm trying to make my program run faster, using threads but it takes too many time. The code mu… Read more Why My Multi-threading Program Is Slow?

Scipy Minimize: How To Pass Args To Both The Objective And The Constraint

My MWE is as follows def obj(e, p): S = f(e) + g(p) return S I would like to minimize this… Read more Scipy Minimize: How To Pass Args To Both The Objective And The Constraint

How To Write A Generator For Keras Model For Predict_generator

I have a trained keras model, and I am trying to run predictions with CPU only. I want this to be a… Read more How To Write A Generator For Keras Model For Predict_generator

Dcp Requirement Violated When Specifying Constraing In Cvxpy, Perhaps Need To Rethink Entire Formulation Of Problem

This is a follow-up to an earlier specific question, but as I add more complexity to the problem f… Read more Dcp Requirement Violated When Specifying Constraing In Cvxpy, Perhaps Need To Rethink Entire Formulation Of Problem

Python Sensitivity Analysis From Measured Data With Salib Toolbox

I would like to understand, how to use the SALib python toolbox to perform a Sobol sensitivity anal… Read more Python Sensitivity Analysis From Measured Data With Salib Toolbox

Does Os.walk Take Advantage Of The File Type Returned By The Os For Efficiency?

The os.walk function returns separate lists for directories and files. The underlying OS calls on m… Read more Does Os.walk Take Advantage Of The File Type Returned By The Os For Efficiency?

Valueerror: The Array Returned By A Function Changed Size Between Calls Scipy.fsolve()

I am trying to use scipy.optimize.fsolve() to solve for x that makes the function equal to zero, bu… Read more Valueerror: The Array Returned By A Function Changed Size Between Calls Scipy.fsolve()

Several Issues With Capturing A Screen Video With Python

i have already asked a similar question on stackoverflow, but its not the same :-) I have three pro… Read more Several Issues With Capturing A Screen Video With Python

Receiving Empty Dataframe For Solved Pulp Optimization Problem

I am dabbling with PuLP (and Python, in general) for the first time to run an optimization problem … Read more Receiving Empty Dataframe For Solved Pulp Optimization Problem

Mongodb Optimize Multiple Find_one + Insert Inside Loop

I'm using MongoDB 4.0.1 and Pymongo with pyhton 3.5. I have to loop over 12000 items every 30 -… Read more Mongodb Optimize Multiple Find_one + Insert Inside Loop

Mpc With Arx Model Using Gekko

I am modelling an MPC to control a fridge and keep the temperature within a given interval while mi… Read more Mpc With Arx Model Using Gekko

Should I Cache Range Results If I Reuse Them?

I'm relatively new to python, and I'm trying to optimize some code for a HackerRank problem… Read more Should I Cache Range Results If I Reuse Them?

Scipy Fmin_slsqp Error "failed In Converting 8th Argument `g' Of _slsqp.slsqp To C/fortran Array"

I have seen this question or a variant asked elsewhere e.g. Scipy error using optimization module. … Read more Scipy Fmin_slsqp Error "failed In Converting 8th Argument `g' Of _slsqp.slsqp To C/fortran Array"

How Can I Use Broadcasting With Numpy To Speed Up This Correlation Calculation?

I'm trying to take advantage of NumPy broadcasting and backend array computations to significan… Read more How Can I Use Broadcasting With Numpy To Speed Up This Correlation Calculation?

Save Intermediate Results In Minimization Problem

I am running a minimization problem using the next code: import numpy as np from scipy.optimize imp… Read more Save Intermediate Results In Minimization Problem

Save Optimization Of Hyperparameter In A Convolutional Neural Net

I am facing a problem regarding saving the training process of the hyperparameter in my Convolution… Read more Save Optimization Of Hyperparameter In A Convolutional Neural Net

How To Add Indicator Constraints In Pulp Python?

I have a problem that I don't know how to add indicator constraints in pulp. Can anyone help me… Read more How To Add Indicator Constraints In Pulp Python?

Least Linear Squares: Scipy.optimize.curve_fit() Throws "result From Function Call Is Not A Proper Array Of Floats."

i am trying to implement an python code right now, which computes the least squared error for a mat… Read more Least Linear Squares: Scipy.optimize.curve_fit() Throws "result From Function Call Is Not A Proper Array Of Floats."

Python Quicksort - List Comprehension Vs Recursion (partition Routine)

I watched the talk Three Beautiful Quicksorts and was messing around with quicksort. My implementat… Read more Python Quicksort - List Comprehension Vs Recursion (partition Routine)