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Showing posts with the label Optimization

Product Feature Optimization With Constraints

I have trained a Lightgbm model on learning to rank dataset. The model predicts relevance score of … Read more Product Feature Optimization With Constraints

Initial Guess Using Scipy.optimize In Python

I have the following problem to code using python: I have 7 parameters: x, y, z, t, HF, M1F, and M2… Read more Initial Guess Using Scipy.optimize In Python

Why Am I Getting Incorrect Results From Scipy.optimize.fmin?

import pandas as pd from scipy.optimize import fmin data = pd.DataFrame({'DIV': [1,2,3]*3,… Read more Why Am I Getting Incorrect Results From Scipy.optimize.fmin?

Swapping The Dimensions Of A Numpy Array

I would like to do the following: for i in dimension1: for j in dimension2: for k in dimensio… Read more Swapping The Dimensions Of A Numpy Array

Should Import Statements Always Be At The Top Of A Module?

PEP 8 states: Imports are always put at the top of the file, just after any module comments and do… Read more Should Import Statements Always Be At The Top Of A Module?

Simplify Form Submission In Django

I have a form in Django where the user can submit a file/ an image/ text in a single form as follow… Read more Simplify Form Submission In Django

Pypy Significantly Slower Than Cpython

I've been testing a cacheing system of my making. Its purpose is to speed up a Django web appli… Read more Pypy Significantly Slower Than Cpython

Python - Optimisation Of Perfect Number Search

p = [] for x in range(1, 50000000): count = 0 for y in range(1, x // 2 + 1): if (x … Read more Python - Optimisation Of Perfect Number Search

Ordereddict Performance (compared To Deque)

I've been trying to performance optimize a BFS implementation in Python and my original impleme… Read more Ordereddict Performance (compared To Deque)

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?

Converting A 1.2gb List Of Edges Into A Sparse Matrix

I have a 1.2GB list of edges from a graph in a text file. My ubuntu PC has 8GB of RAM. Each line in… Read more Converting A 1.2gb List Of Edges Into A Sparse Matrix

How To Optimize/simplify Heapsorting Django Objects? (can't Use Modules And Db Sorts)

I have to ask for some help with an assignment I got as a test for a django internship. I had to ma… Read more How To Optimize/simplify Heapsorting Django Objects? (can't Use Modules And Db Sorts)

How Can I Minimize The Distance From A Given Input Distribution?

I have a list of customers and each of them can be 'activated' in four different ways: n= 1… Read more How Can I Minimize The Distance From A Given Input Distribution?

Optimize Python Program To Parse Two Large Files At The Same Time

I am trying to parse two large files with Python3 at the same time. As shown here: dict = {} row = … Read more Optimize Python Program To Parse Two Large Files At The Same Time

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

How To Optimize Makespan Of Worker Labor To Maximum Time Usage Given A Set Of Possible Tasks

So I'm in a bit of a difficult algorithm modeling situation and I hope you guys can help me fin… Read more How To Optimize Makespan Of Worker Labor To Maximum Time Usage Given A Set Of Possible Tasks

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?

Python Eratosthenes Sieve Algorithm Optimization

I'm attempting to implement the Sieve of Eratosthenes. The output seems to be correct (minus &#… Read more Python Eratosthenes Sieve Algorithm Optimization

Fast Differences Of All Row Pairs With Numpy

I am using an algorithm that requires that each example has a matrix, say Xi which is ai x b, and t… Read more Fast Differences Of All Row Pairs With Numpy

Cannot Coerce To Or From Object In Nopython Context: Error After Python

Following up from here, Numba is finally working (after weeks) on my machine, without any weird ind… Read more Cannot Coerce To Or From Object In Nopython Context: Error After Python