Relational Join Algorithms

This script implements the three standard relational join algorithms: nested loops join, hash join, and merge join, using the iterator algebra support in Python.This script also presents code that can be used for inner join, left outer join, full outer join, and semijoins. The nested loops join...

A set of Unix command line tools for quick and convenient batch processing of tabular text files (a.k.a., tab-delimited, csv, or flat file format) with a header line. Provides delimiter and compression detection, column reference by name. * tblmap: per-line ('map') computation: derive columns...

Metakit is an efficient embedded database library with a small footprint. It fills the gap between flat-file, relational, object-oriented, and tree-structured databases, supporting relational joins, serialization, nested structures, and instant schema evolution. There is a C API, a Python binding...


Platforms: Windows, Mac, *nix, Python, BSD Solaris

Destral is an open source, multiplatform implementation of the Hacha 3.0, Hacha 3.5 and HJSplit split and join algorithms. These utilities are widely used in forums and news to distribute one large file as many smaller files. A Qt GUI is also planned


Platforms: *nix

DBIx::DBStag is a Perl module for Relational Database to Hierarchical (Stag/XML) Mapping. SYNOPSIS use DBIx::DBStag; my $dbh = DBIx::DBStag->connect("dbi:Pg:dbname=moviedb"); my $sql = q[ SELECT studio.*, movie.*, star.* FROM studio NATURAL JOIN movie NATURAL JOIN movie_to_star...


Platforms: *nix

Object Relational Membrane is a Python package that provides the functionality of an object relational layer like EJB or other persistence storage systems. Object Relational Membrane is a thin compatibility layer between SQL table layouts and Object Oriented Python. While providing a good deal...


Platforms: *nix

Firebird is a relational database offering many ANSI SQL-99 features that runs on Linux, Windows, and a variety of Unix platforms. Firebird offers excellent concurrency, high performance, and powerful language support for stored procedures and triggers. Firebird Relational Database has been...


Platforms: *nix

C Algorithms Library is a collection of commonly used Computer Science algorithms. The focus is on code that is well documented and tested, portable, and reusable. The C Programming Language has a much smaller standard library compared to other more modern programming languages such as Java...


Platforms: *nix

Wwill enable you to join the files of selected iTunes tracks together with QuickTime and export them as a single AAC file/track. Optionally, you can create a 'chapterized' audio file of the exported AAC file with pointers to the individually joined tracks. Works with any kind of iTunes audio file...


Platforms: Mac

A use case for this would be if you have a site where only members of a certain role are allowed to join an organic group.  In addition to granting/denying permission to join a group, the module also modifies any text and/or links to join a group unless the user has the proper role.This module...


Platforms: Windows, Mac, *nix, PHP, BSD Solaris

Companion software for the Direct Adaptive Control Algorithms: Theory and Applications, 2e book by Howard Kaufman, Itzhak Barkana & Kenneth Sobel


Platforms: Matlab

Non Convex Optimization Algorithms for Group SparsitySolves a dummy OFDM sparse channel estimation problemReweighted Lm,p algorithm for noiseless case min||x||_m,p s.t. y = AxReweighted Lm,p algorithm for noisy case min||x||_2,p s.t. ||y - Ax||_qSmoothed L2,0 algorithm solves a smooth version...


Platforms: Matlab

Files used in the Webinar "Developing a Financial Market Index Tracker using MATLAB OOP and Genetic Algorithms"The zip file contains the data and files used to develop an application to track a market index using Genetic algorithm. The initial algorithm is then wrapped up in MATLAB OOP to create...


Platforms: Matlab

The idea behind the Relational Algebra project is that it is easier to understand relational algebra if you can experiment with the different operators. I looked at some of my solutions and thought 'if only I could just run this with some test data to see if it works'. The interpreter handles...


Platforms: Mac

Tangram is a simple Perl module that can store pure objects in standard relational databases. Tangram is an object-relational mapper. It is orthogonal, meaning that it does not require anything of the objects stored in it (other than the common convention that base objects be based upon HASHes;...


Platforms: *nix

Boost.Join is an asynchronous, message based C++ concurrency library based on join calculus. It is applicable both to multi-threaded applications and to the orchestration of asynchronous, event-based applications. The project follows Comegas design and implementation and builds with Boost...


Platforms: *nix

Join Together is an AppleScript Studio application that will enable you to join the files of selected iTunes tracks together with QuickTime and export them as a single AAC file/track.Optionally, with Apple's ChapterTool application installed, you can then create a "chapterized" audio file of the...


Platforms: Mac

The aim of the project is to provide open source collection of algorithms in the field of spectroscopy: data handling and processing, modeling and artificial intelligence tools.


Platforms: Windows, Mac, Linux

An implementation of a truly relational database language with Python. Inspired by Date and Darwen's 'Third Manifesto'.


Platforms: Windows, Mac, Linux

This is a cross-platform framework for using Genetic Algorithms for solutions. Written in Java and uses convinient plug-in features for every phase in the genetic development, while maintaining an easy-to-use API for easy integration into applications.


Platforms: Windows, Mac, Linux