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This repository contains the code to reproduce the measurements from the section "Querying building data" of the paper "Executing ad-hoc queries on big geospatial data sets without acceleration structures".

To run the tests, follow the steps below

  1. Download the Enhanced New York City 3D Building Model from https://github.com/georocket/new-york-city-model-enhanced
  2. Execute this project using gradle: 
    ./gradlew run --args="--test 1 --input /PATH/TO/DA_WISE_GML_enhanced/DA12_3D_Buildings_Merged.gml"

Change the argument --test 1 to other numbers to execute the other tests.

Remove the filename from the argument --input to search in all files of the directory.

To run the program in benchmark mode, add the parameter --benchmark. You have to execute the program with sudo because it clears the disk cache between the iterations.

sudo ./gradlew run --args="--test 1 --input /PATH/TO/DA_WISE_GML_enhanced/ --benchmark"

The code was tested using Ubuntu and macOS. It uses the Boyer Moore Horspool implementation with Raita's improvement from Johann Burkard licensed under the MIT license: https://github.com/elefana/stringsearch

This project is licensed under the MIT license.