Skip to content Skip to sidebar Skip to footer
Showing posts with the label Optimization

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"

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?

Problems With Scipy.optimize Using Matrix As Input, Bounds, Constraints

I have used Python to perform optimization in the past; however, I am now trying to use a matrix as… Read more Problems With Scipy.optimize Using Matrix As Input, Bounds, Constraints

Optimizing For Pypy

(This is a follow-up to Statistical profiler for PyPy) I'm running some Python code under PyPy … Read more Optimizing For Pypy

Tensorflow Valueerror: Variable Does Not Exist, Or Was Not Created With Tf.get_variable()

I am a newbie to Tensorflow and trying to implement a Generative Adversarial Network. I am followin… Read more Tensorflow Valueerror: Variable Does Not Exist, Or Was Not Created With Tf.get_variable()

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."

How Could I Optimise This Simple Python Pygame Code

I've been set a challenge to make a game using pygame ( I am making snake so it should be easy.… Read more How Could I Optimise This Simple Python Pygame Code

Parallel Optimizations In Scipy

I have a simple function def square(x, a=1): return [x**2 + a, 2*x] I want to minimize it over… Read more Parallel Optimizations In Scipy

Fastest Way To Compute Distance Beetween Each Points In Python

In my project I need to compute euclidian distance beetween each points stored in an array. The ent… Read more Fastest Way To Compute Distance Beetween Each Points In Python

How Do I Make My Implementation Of Greedy Set Cover Faster?

I came up with the following implementation for the Greedy Set Cover after much discussion regardin… Read more How Do I Make My Implementation Of Greedy Set Cover Faster?

Spark Pandas_udf Is Not Faster

I'm facing a heavy data transformation. In a nutshell, I have columns of data, each containing … Read more Spark Pandas_udf Is Not Faster

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

L1-norm Minimization

I am trying to minimize the following function using Linear programming. I am unable to include the… Read more L1-norm Minimization

How To Calculate Weight To Minimize Variance?

given several vectors: x1 = [3 4 6] x2 = [2 8 1] x3 = [5 5 4] x4 = [6 2 1] I wanna find weight w1,… Read more How To Calculate Weight To Minimize Variance?

How To Rotate An Array By ± 180° In An Efficient Way?

What is the best algorithm to rotate a non-square M×N array by 180° around its center, using the le… Read more How To Rotate An Array By ± 180° In An Efficient Way?

Optimise Two Sql Queries And A List Comprehension

I have those two models (simplified): class Place(OrderedModel): name = models.CharField(max_le… Read more Optimise Two Sql Queries And A List Comprehension

Providing Constraints In Pymoo Optimisation

I have an objective function which looks like: f1 = -1 * (constant1 * (variable1 - constant2)) And… Read more Providing Constraints In Pymoo Optimisation

Find If Dates Are Overlapping In A List Of N Pairs

Given list of start times and begin times, I would like to find if the list contains overlapping en… Read more Find If Dates Are Overlapping In A List Of N Pairs

Subsequence From Madhava–leibniz Series As Fast As Possible With Python

Madhava–Leibniz series: All I need is to create a subsequence from element k to element n: from … Read more Subsequence From Madhava–leibniz Series As Fast As Possible With Python

Pandas: Optimizing Some Python Code By Getting Rid Of Dataframe.apply()

the following code is produced using python 2.7 and pandas 0.9.1. I have a dataframe with two colum… Read more Pandas: Optimizing Some Python Code By Getting Rid Of Dataframe.apply()