This assumes that ant and the JDK are available on the system.
Go to the project directory and run
$ ant
This will run the matcher on the default dataset and store the results in results.txt.
To customize the data set or results file, include ant arguments as follows:
$ ant -Dproducts=path/to/products.txt -Dlistings=path/to/listings.txt -Dresults=path/to/results.txt