Browse free open source Java Algorithms and projects below. Use the toggles on the left to filter open source Java Algorithms by OS, license, language, programming language, and project status.

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  • 1
    Open Screening Environment is a open source system for management of High Throughput Screening related experiments. The platform consists of new research tools that will enhance significantly management and analysis of HTS data. More information can be f
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  • 2
    Open Simplex Project

    Open Simplex Project

    A Simple GUI Implementation of the Simplex Algorithm

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  • 3
    An open source initiative for developing a scalable, high-speed trading desk. The Open Trading Desk will support trading in a variety of markets, to include: equities, options, mutual funds and ETFs, Forex, Bonds and Algorithmic trading.
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  • 4

    OpenDino

    Open Source Java platform for Optimization, DoE, and Learning.

    OpenDino is an open source Java platform for optimization, design of experiment and learning. It provides a graphical user interface (GUI) and a platform which simplifies integration of new algorithms as "Modules". Implemented Modules Evolutionary Algorithms: - CMA-ES - (1+1)-ES - Differential Evolution Deterministic optimization algorithm: - SIMPLEX Learning: - a simple Artificial Neural Net Optimization problems: - test functions - interface for executing other programs (solvers) - parallel execution of problems - distributed execution of problems via socket connection between computers Others: - data storage - data analyser and viewer
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  • 5
    An Open source Java library that implements the Extractor(Turner) Algorithm for keyphrases retrieval. This is an utility for summarizing.
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  • 6
    OpenNeuron is a neural networks implementation written in Java. Currently supports only Kohonen Network model, but API is designed to be easily extended to model other network types. This implementation was used for face thermal pictures recognition.
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  • 7
    Opt4J

    Opt4J

    Modular Java framework for meta-heuristic optimization

    Opt4J is an open source Java-based framework for evolutionary computation. It contains a set of (multi-objective) optimization algorithms such as evolutionary algorithms (including SPEA2 and NSGA2), differential evolution, particle swarm optimization, and simulated annealing. The benchmarks that are included comprise ZDT, DTLZ, WFG, and the knapsack problem. The goal of Opt4J is to simplify the evolutionary optimization of user-defined problems as well as the implementation of arbitrary meta-heuristic optimization algorithms. For this purpose, Opt4J relies on a module-based implementation and offers a graphical user interface for the configuration as well as a visualization of the optimization process.
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  • 8
    OptorSim is a Grid simulator designed to test dynamic replication strategies used in optimising data location within a Grid. Each simulated site contains several storage or computing elements. Simulated jobs run and file accesses may trigger replication.
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  • 9
    Origin is a evolver for the programming game Corewars. Part of this project is a modified MARS (Memory Array Redcode Simulator) written in C especialy for evolvers. With SWIG its going to be very easy to use in different languages.
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  • 10

    OverlappingTreesPlainMap

    The utility for quickest manipulations with difficult data.

    This is Java library for working with overlapping trees both as with plain memory and as with hierarchical structure, with quick access to any levels and branches of tree (<page><...><section><line><word>tooLongWordForCurrentLi</line></page><page><line>neAndSectionTwoPages</word></line></section><...></page> (incorrect in classic XML)). There supported the cross-references (from="@leftPanel#template" target="$template"); cursors;copying and removing of parts; functionality to index and search data; convenient factory of dynamic generation of values and parts of data; simple variables and any objects as values and as unnamed data for manipulating. Every object of this container is an child of any numbers of trees and has dynamic address. The utility is not demanding to resources, requires no extraneous libraries and can be deployed in a small memory. It can run on mobile devices. Do not use linear algorithms, the speed is only slightly dependent on the size of data.
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  • 11
    PI-Based Image Encoder / Converter

    PI-Based Image Encoder / Converter

    Python code able to convert / compress image to PI (3.14, π) Indexes

    Image processing tool that encodes pixel data as indices within the first 16.7 million digits of PI (π). Features high-performance Numba-accelerated search and a signature 'film-grain' aesthetic upon reconstruction. ZIP also include 16 MB file with 16,7 mil numbers of PI Benchmark(Single-Thread): Hardware & Environment Apple Silicon: Apple M2 (Mac mini/MacBook) x86_64 Platform: Intel Core Ultra 5 225F (Arrow Lake, 10 Cores) OS 1: Fedora 43 (GNOME) OS 2: Windows 11 Pro (23H2/24H2) Software: Python 3.14.3 + Numba JIT (latest) Results (Lower is better) Platform / OS CPU Time (Seconds) macOS (Native) Apple M2 52.151311 s (in default setup) Fedora Linux Intel Core Ultra 5 225F 58.536457 s (in default Power Management: Balanced) Windows 11 Intel Core Ultra 5 225F 59.681427 s (important! Power Management set as High Performance .. in Balanced is slow)
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  • 12
    This is a collection od different small Java applications or allgorithms
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  • 13
    Coupling the notion that during the search for the minimum of a function we must pass through its solution with a PSO solution generator engine, is the approach for solving, in time domain, a non-linear algebric-differential system of equations.
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  • 14
    PWSLIB3

    PWSLIB3

    Password Safe encrypted databases, Java library

    Java module to create, read and write Password Safe V3 encrypted databases. The package is a mature offspring from project JPasswords and can be used with Java 1.8. There is an API document available.
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  • 15
    The Parameter Tuning Unity (PTU) aims to adapt the parameters of ever connected multi-agents system, or expert system with a plugged optimization heuristic likes the descent of gradient for instance.
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  • 16
    PetriOpti

    PetriOpti

    Petri network optimization with Martinez-Silva algorithm

    A simply application in order to demonstrate Martinez-Silva optimization algorithm on Petri networks.
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  • 17
    Physhun is a Java framework for building and executing finite state machines in J2SE and J2EE environments. State models are defined as collections of Spring beans, and do not use proprietary modeling languages. The framework is simple and flexible.
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  • 18
    Plantra-Trajectory Planning is a software to rebuild surfaces from cloud points, featuring shaded 3D visualization and path planning for robotics paths. It uses Voronoi diagram, Cyrus-Beck clipping, Delaunay triangulation and B-Splines.
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  • 19

    Point Symmetry Clustering

    Point Symmetry Clustering Approach Using Differential Evolution

    Implementation of Point Symmetry-based Automatic Clustering Approach Using Differential Evolution Using bug fixed KD tree nearest neighbor search from https://github.com/CristianDallos/kmeansclustering. (It is also modified to search for multiple nearest points instead only for one.) Used those academic works for algorithm implementation: http://cs.cug.edu.cn/teacherweb/gwy/Publication/ISICA-09.pdf http://www.isical.ac.in/~sanghami/ieeetkde_cameraready.pdf http://www.softcomputing.net/smca-paper1.pdf 1. You may download code: git clone git://git.code.sf.net/p/pointsymmetryclustering/code pointsymmetryclustering-code 2. Build: mvn clean install assembly:assembly -DskipTests -Dmaven.test.skip=true -DdownloadSources=true -Dcheckstyle.skip=true 3. Run: java -jar target/point-symmetry-clustering-1.0-fat.jar
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  • 20
    PortugolViana é uma ferramenta open-source para edição/execução algorítmica. PortugolViana permite a edição de algoritmos em português (do Brasil e de Portugal) e a sua execução e monitorização.
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  • 21
    Pre-projetos_MLCM - É um conjunto de Programas e códigos fonte dos mesmos, com finalidade educacionais para a área de TI. Sendo eles programas simples que foram desenvolvidos para a aquisição de nota no curso de BCC. Os programas em si, estão ainda em desenvolvimento sendo disponibilizado uma prévia dos progressivos resultados, não se tendo uma data de finalização do projeto definida. Fica a disposição os códigos deles sobre a licença GPL para que estudantes e interessados possam fazer uso e estudo dos mesmos.
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  • 22
    ProViz
    ProViz is a program visualization framework for Java. It is built as a plugin to the Eclipse IDE. (We are getting close to publishing resources and making this project distributable. Stay tuned!) A video demo: http://www.youtube.com/watch?v=BsoK1n-OM
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  • 23
    Programming Accessory Kit

    Programming Accessory Kit

    PAK is a collection of library code to handle the overhead of coding

    PAK is a collection of library code to handle the overhead of coding things like read-write locks, reflective multithreaded programming and simple file io. This is a java library collection, please see my API below...
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  • 24
    Academic project aiming to write an alife Avida-like program in java.
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  • 25
    QMC Logic Minimizer

    QMC Logic Minimizer

    combinational logic functions minimization

    QMC Logic Minimizer is a versatile application for fast simplifying truth and reduce lines tables. This program offers a comfortable user interface for generating and minimizing of the combinational logic functions. It is unique for its possibility of minimizing several functions at the same time. This program is intended for practical digital devices constructors as well as formal scholars and academics. Features: - You can minimize up to 16 input variables and up to 16 output variables. - You can also reduce the number of table rows. - It allows you to name the input and output variables. - The table can be exported to HTML file and then you can use it in e.g. MS Word. - This program provides a comfortable interface, you can change fonts and colors. - It works on MS Windows, GNU/Linux, Mac OS.
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