Questions tagged [optimization]

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Python linear optimization package

I have been running a python script for a large linear optimization problem, using scipy optimization package (https://docs.scipy.org/doc/scipy/reference/generated/scipy.optimize.linprog.html). ...
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Bounds on parameters in scipy.optimize [closed]

I have a dataset of real-life measured data, and I have a function which represents the theoretical model. The function takes in an array of x-data and 5 parameters. The 5 parameters are unknowns that ...
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Solve a least norm problem with linear inequality constraints - Norm 1 and norm 2?

Suppose that i want to find $x$ whith minimum 2-norm such that $Gx >= f$ : i'll use lsei::ldp to do that (see https://cran.r-project.org/web/packages/lsei/lsei.pdf page 4-5-6). What if i want to ...
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Alternative library to cvxpy for solving integer programming problem?

I am trying to solve the campaign optimization problem similar to the marketing problem(integer programming) described in the following link. https://towardsdatascience.com/integer-programming-in-...
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1answer
18 views

Is there a python package that allows for stochastic surrogate modelling with bayesian optimization?

For a set of variables I want to find for which variable combinations a function becomes (close to) zero. As the evaluation of this function is quite costly, I want to use bayesian optimization. There ...
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4 views

Optimal DB for bulk inserts with unique constraint on binary data field

I am trying to find the optimal DB for inserting binary data many times, when theres a unique constraint on it - there is a hash identifying each record, that can't be repeated. I'm interested only in ...
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6 views

Sparse nonlinear C/C++ optimization library

I'm looking for a sparse nonlinear optimization library usable from C++ that satisfies the following requirements: Opensource: LGPL or a less restrictive licence (LGPL, MIT, BSD, Cecill, Apache, ...)...
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11 views

Suggestions for free, non-convex optimization package or software

I am seeking for a free (so that a company can use it) package or software for solving non-linear, non-convex optimization problems with inequality constraints. All systems (windows, ubuntu...) will ...
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1answer
8 views

Route optimization software

What will be the best software recommendation for route optimization. Which includes the following vehicles and Jobs constraints. For Vehicles:- Each vehicle will have the following parameters Load ...
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7 views

Open source database for testing algorithm

I have developed algorithm which probably would optimize query executions and accuracy of results. I am seeking for some open source or free database systems where I could run this algorithm. Even ...
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7 views

Architecture Management Tool integrating process, application & organizational view?

I'm currently working on streamlining and organizing the technichal and business architecture of a company which is moving towards unified ownership of applications, business responsibilities and ...
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12 views

Solving Non-Linear Multi-Objective Optimisation with penalty functions

I want to solve these kinds of problems in Python: Minimize Objective_Function_1 = [C1 * (MAX(X1-1000, 0) + C2 * (MAX(X2-1500, 0)) + ....] Objective_Function_2 = [C9 * (X9-89) + (C8*...
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77 views

Trust Region Reflective Algorithm in C/C++

Currently using MATLAB's lsqnonlin function which utilizes the "trust-region-reflective" algorithm. Does anyone know where I can find a C/C++ implementation of this algorithm?
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1answer
13 views

Solving optimization problems like “which employees in which office” with constrains and preferences

While discussing who wants to sit next to whom in a new office I wondered if this isn't some kind of general class of problems that can be helped by software. Imagine we have X employees and Y rooms ...
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124 views

Solve small quadratic programming problem with inequality constraints in Java or C/C++

I need to solve a quadratic programming problem. The problem is small, 4 variables and 8 constraints, and has inequality constraints but not equality constraints. I am looking for a library in Java or ...
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1answer
44 views

Library for finding minima of complex multidimensional functions in C or C++

I have a function in C or C++ which has multiple input and multiple output, functions behind are quite complex in its nature and highly non-linear. Now what I would like to do is to have an ...
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240 views

Android swipe keyboard with low memory (RAM) usage

I'm looking for an Android keyboard for older Android devices that have limited RAM. The only feature that is required is that it must support swiping to enter words. Ideally, it should use no more ...
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1answer
59 views

Is there any free recommended Tune-up utilities/softwares to “Optimize” your system?

I have been looking for a while websites which recommend using different "Tune-up utilites" or "system utilities" to improve performance to the system. I do have Windows 10, 64 bits. So I have just ...
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0answers
21 views

Multi bin packing

I need a library or software (free or paid) to do multi bin packing: Inputs: several boxes (WxHxD) and their weight several containers (WxHxD) and their maximum weight Output: minimum number of ...
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0answers
38 views

Travelling Salesman: Java library

I have a list of 1000 buildings of a city, and want to find a short route that covers them all. Is there an implementation of this in Java? Requirements: Open source Easy to use: just call a method ...
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16 views

Spherical Travelling Salesman: Java library

I have a list of 1000 cities around the globe, and want to find a short route that covers them all. Is there an implementation of this in Java? Requirements: Open source Easy to use: just call a ...
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2answers
144 views

Fast (approximate?) linear programming solver for few variables and many constraints

I'm writing some code in C++, and it turns out I need to solve an optimization problem which may be formulated using m variables and n linear constraints (i.e. constraint i is of the form \sum_j a_{i,...
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1answer
40 views

Best way to smooth scrolling long lists on the web page

I'm looking for a free JavaScript library to display large data sets easily like for example Clusterize.js Or an idea how this can be easily achieved? It's about the best way to smooth scrolling ...
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0answers
61 views

Free program for geometric adjustment (trilateration, least square method)

I am looking for a free application in order to calculate optimal coordinates of points, given a fixed set of points and the mutual distance between them. The system is over-constrained hence spatial ...
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0answers
22 views

Tool for advanced lossy JPEG optimization

Short question I need to optimize my JPEG pictures targeted for the web. So I'm looking for a tool that achieves maximum compression while retaining an optimum of the quality. Choosing a default ...
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0answers
44 views

JavaScript optimizer for Windows 8

I'm looking for a JavaScript optimizer and so far, I found two suitables products: UglifyJS, whose main objective is to reduce code size Google Closure Compiler, which reduces code size and improves ...
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0answers
29 views

Program to check running processes and give suggestions on garbage to kill?

As a good 'power user' my Windows 7 install has a few years running strongly. I just opened task manager and I have 185 processes currently running (granted most are chrome windows). I was wondering ...
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0answers
392 views

Non-linear optimization library for C++

I'm looking for a non linear optimization C++ library that satisfies the following requirements: If it's an open source licence it must have LGPL or a less restrictive licence. Open source is ...
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0answers
36 views

Genetic Framework in Java

I'm looking for an easy-to-use Genetic Framework in Java, which has to have the following features: Builtin multithreading support (possibly using islands and without the need to merge them manually, ...
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0answers
20 views

Calender Sync across multiple devices and platforms

I'm looking to optimize the way my fiance and i sync our calenders. Our current system (we are both within the Apple OSX/iPhone environments) uses a combination of Avocado (an app for couples) and ...
3
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1answer
100 views

Looking for optimization libraries to optimize a matrix

I need to solve the problem shown below, but I do not know what optimization libraries can solve this problem. The optimization target is a 3x3 matrix A and a 3D vector b, given the 3D vectors xi ...
4
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1answer
51 views

Simple Non-Linear Programming Software

I have a non-linear maximization problem with < 12 constraints and < 12 variables. I'm looking for free simple software in which I can enter the expression to be maximized along with the ...
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0answers
22 views

Does R have non-linear optimization package(s) that scale well on cluster?

This is a copy of my SO post that was closed as off-topic because it was asking for a software recommendation. I only hope it wouldn't get closed at Software Recommendations SE for being a copy of the ...
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1answer
905 views

Seek C/C++ library to solve linear regression problem

Is there some off-the-shelf C/C++ library to solve the following problem:
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25 views

Website for comparing SQL performance

Is there a website which allows you to paste a DDL for your DB and two SQL statements, which can then recommend one (optionally including context such as; "if >10,000 rows use Query#2; else Query#1")? ...
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1answer
80 views

Freeware to speed up Windows PC [closed]

My Windows PC is running slow. Looking for freeware recommendations to fix the problem and keep my 3-year-old PC running smooth.
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4answers
170 views

Android App that helps manage the battery drain

I own a Sony Z1 mobile phone and the battery drains way too fast. I have Android 4.4 version, not rooted. Does anybody know what app could be successfully used to identify and and manage power ...
4
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3answers
105 views

Free IOS 'scan' app

I am looking for a free app that allows me to take pictures of documents ('scans'), and the app optimizes it. I would like it: to be free to save in color to auto-optimize to allow me to crop it ...
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1answer
98 views

Good money library that's optimized for doing Math

Does anyone know of a good money library that's optimized for doing math? Joda money seems optimized for doing things like displaying currencies and so forth. I'm looking for one that is designed for ...
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0answers
26 views

Statistics about most frequent actions in Windows

I would like to optimize my use of Windows by first analyzing what I do most frequently: what programs I open, what shortcuts I use, where I click with the mouse, etc. Is there a software that ...
2
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0answers
172 views

Suggestions for optimization library (constrained minimization) for use with Fortran

I am currently making the switch from Matlab to Fortran for performance reasons and I need some help finding a library that can help me with my minimization problem. I am looking to minimize a ...
2
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1answer
152 views

Java Optimization Framework

I'm looking for a java framework, which is suitable for optimization tasks. In best case it's realized with Java 8. I know there are better languages for optimization tasks, but currently I'm ...
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2answers
202 views

System Optimization software for Windows

I would like to have a software which performs PC optimization in various ways such as... Registry CleanUp Registry Degragmentation Uninstall Programs Disable Startup Programs Disable Inactive ...