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Tree-Encoded Bitmaps

This repository contains the source code of Tree-Encoded Bitmaps.

Quick start

Check out the code and run the tests

git clone https://github.com/harald-lang/tree-encoded-bitmaps.git teb
git clone https://github.com/peterboncz/bloomfilter-bsd.git dtl
git clone https://github.com/harald-lang/fastbit.git fastbit
cd teb
mkdir build-debug
cd build-debug
cmake -DCMAKE_BUILD_TYPE=Debug ..
make -j 16 tester
./tester
cd ..

Compression experiments with real-world data sets.

mkdir build-release
cd build-release
cmake -DCMAKE_BUILD_TYPE=Release ..
make -j 16 real
./real

Experiments with synthetic data sets.

Further experiments, using synthetic data, can be found in the experiments/ directory. Each experiment has its own main function and build target, prefixed with ex_. Before an experiment can be executed, the corresponding binary needs to be executed once with the environment variable GEN_DATA=1 set. This will populate a SQLite database with randomly generated bitmaps, required by the experiment. All (synthetic) experiments print their CSV results to stdout, which is supposed to be redirect into a file. For details on the output format, please refer to experiments/{compression,performance}/common.hpp.

make -j 16 ex_compression_uniform
GEN_DATA=1 ./ex_compression_uniform > ex_compression_uniform.out 

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