Questions tagged [optimization]

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35 questions with no upvoted or accepted answers
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2answers
172 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,...
3
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0answers
395 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 ...
3
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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
67 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 ...
2
votes
0answers
45 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 ...
2
votes
0answers
21 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 ...
2
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0answers
178 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 ...
1
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0answers
25 views

Tabu Search Heuristic Implementation in C#

I'm looking for a C# implementation of a TabuSearch Metaheuristic Framework. Like the Basic Heuristic Implementation with interfaces to adapt to my needs for providing custom aspiration criteria and ...
1
vote
1answer
34 views

PDF Compression: Lossless or near-lossless compression options?

I'm looking for a tool for macOS (Windows and Linux would also be nice) that will compress PDFs with a lossless or near-lossless methodology. There is an interesting discussion for ImageOptim PDF ...
1
vote
1answer
20 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 ...
1
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0answers
8 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, ...)...
1
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0answers
260 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 ...
1
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0answers
23 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 ...
1
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0answers
39 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 ...
1
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0answers
17 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 ...
1
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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 ...
1
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0answers
39 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, ...
1
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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 ...
1
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0answers
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")? ...
1
vote
1answer
100 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 ...
0
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0answers
17 views

Gratis MySql optimizer

I have gotten by until now with ensuing 3rd order norm and having good indexes & foreign keys. Today an AJAX query is exceeding 30 seconds on a modest search (PHP builds JSON arrays for each ...
0
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0answers
12 views

Windows PC booster to boost-up performance

I'm looking for an app to boost-up performance on Windows with the following features: Create a Faster PC Start-Up Solving Slow PC Performance Registry cleaner myths Setup the tool to cover specific ...
0
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0answers
46 views

Searching for a c++ library for mathematical optimization

I'm searching for a c++ library that can optimize multivariable function, subjected to non-linear constraints. I have an objective function with a lower bound, and 4 constraints and i would like to ...
0
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0answers
5 views

C# Optimization Library with support for blackbox objective function

Background As of writing this I am fairly certain I am not able to accomplish my task with any of the following: Math.Net, Microsoft Solver Foundation, and Google OR-Tools. A simplifies version of ...
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0answers
17 views

Is there any alternative to Tensorflow in Python which requires less storage space?

I've been trying to reduce the storage space needed to operate my company's wake-word detector such that it could fit into Raspberry Pi 3. The wake-word detector is using Mycroft Precise to automate ...
0
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1answer
24 views

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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0answers
3 views

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 ...
0
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0answers
6 views

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-...
0
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0answers
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 ...
0
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0answers
12 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 ...
0
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0answers
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 ...
0
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0answers
8 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 ...
0
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0answers
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*...
0
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0answers
183 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 ...
0
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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 ...