Code and experiment data of the AAAI 2025 paper "PDBs Go Numeric: Pattern-Database Heuristics for Simple Numeric Planning"

Code

The file code.zip contains an extended version of the Fast Downward planning system (http://fast-downward.org). The code for numeric Pattern-Database heuristics can be found in "src/search/numeric_pdbs/". The scripts used to run the experiments can be found in "experiments/numeric_pdbs/". Please see http://www.fast-downward.org for detailed instructions on how to compile the planner. IBM CPLEX is needed only running the baseline using the numeric operator counting heuristic, but not for numeric PDBs. CPLEX is not part of the code.zip archive. Here is the short version for building the planner and running the numeric iPDB heuristic:

./build.py release64
./fast-downward.py --build release64 PROBLEM_FILE --search "astar(numeric_ipdb())"

The latest version of the code is available at https://github.com/dgnad/numeric-fast-downward.

Benchmarks

The file benchmarks.zip contains the numeric PDDL benchmarks used in the experimental evaluation of the paper.

Experiment Data

The remaining files contain the raw experiment data and parsed values for the experiments in the paper. The file "experiment-data-raw.tar.gz" contains the raw data, including log files, of all experiment runs. The file experiment-data-parsed.xz contains a "properties" file with all parsed values.