Using CAST

Setup

• Clone this repository
• Install python3 (if you don't have it installed already)
• Install clingo

sudo apt install gringo

• install python packages

pip install networkx
pip install matplotlib 

Input

Required Input Files:

• interests.txt
• facets.txt
• affintiy_rules.lp
• instance.lp

Interests and facets are listed by name individually on separate lines in their file, in plain english. The affinity rules and the additional constraints in the instance file are written in clingo. See the mario folder for examples of these files. See the wiki page for more detailed explainations of all available clingo constraints that can be added in these files.

Put these files in a shared folder. The name of this folder will be given to the clingo file formatter.

File formatter

In the main directory, run the file formatter by typing:

$ mkdir generated
$ python3 clingo_file_formatter.py

you will be prompted to enter the folder name containing the files specific to your problem instance. The file formatter will process these files and place all necessary files into the generated folder

Running clingo

To run clingo and recieve one possible answer set, do the following:

$ cd generated
$ clingo 1 *

in order to save your computed output for later use, or for network analysis:

$ clingo 1 * > ../example_output.txt

If run multiple times, the results will appear in the same order each time. In order to produce random output:

$ clingo -n 1 --rand-freq=1 *

or random output from a seed:

$ clingo -n 1 --rand-freq=1 --seed=<SEED> *

Network Analysis

In order to run the file that we used to perform network analysis:

$ python3 networks/network_analysis.py

you will be prompted for the name of the file you wish to analyze, as well as the solution number which you wish to analyze.