Dolos

Dolos is a source code plagiarism detection tool for programming exercises. Dolos helps teachers in discovering students sharing solutions, even if they are modified. By providing interactive visualizations, Dolos can also be used to sensitize students to prevent plagiarism.

Dolos aims to be:

• Easy to use by having minimal installation instructions and an intuitive user interface
• Flexible to support many programming languages
• Powerful by using state-of-the-art algorithms to help you discover plagiarism

Dolos is a command-line (CLI) tool that analyses source code files for similarities between them. It is able to show an interactive user interface in your browser by launching a local webserver. The analysis results are available in machine readable CSV files and Dolos can be integrated as a JavaScript library in other applications empowering users to integrate plagiarism detection in their personal workflow.

Installation

You can install Dolos on your system using npm:

npm install -g @dodona/dolos

See the installation instructions on our website for more complete instructions.

Usage

Dolos has to be launched using the command-line interface, but it is able to show the results in your browser.

Launch Dolos using the following command in your terminal:

dolos run -f web --language <language> path/to/your/files/*

The above command will launch a web interface with the analysis results at http://localhost:3000.

More elaborate instructions on how to use Dolos.

Documentation

Visit our web page at https://dolos.ugent.be.

Development

• Run npm install in the root directory, this will link the internal dependencies between the different Dolos modules.
• If you want to use the web format, you need to build the web project first.
• Build the project with npm run build
• Run tests with npm run test