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Code for the "Binding via Reconstruction Clustering" paper

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Binding by Reconstruction Clustering

This is the code repository complementing the paper "Binding by Reconstruction Clustering". Everything from the paper starting from the datasets all the way to the plots can be reproduced from this repository.

reconstruction clustering animated

Dependencies and Setup

  • brainstorm == 0.5
  • numpy >= 1.8
  • matplotlib >= 1.5
  • seaborn >= 0.6
  • sacred >= 0.6.7
  • jupyter
  • ipython
  • pymongo
  • h5py
  • sklearn
  • pandas

Make sure you have a MongoDB running locally. Make sure you have set the BRAINSTORM_DATA_DIR environment variable.

Preparing the data

First run all of the jupyter notebooks in the Dataset directory. This will create HDF5 files for all datasets and save them in your BRAINSTORM_DATA_DIR.

Random Search

If you want to run the random search for good hyperparameters yourself you can run the file run_random_search.py. It will perform 100 runs of random search for each of the datasets and save the results to the local MongoDB database. But be warned: This might take a couple of days!

You can then look at the results using the Get_Search_Results.ipynb notebook.

Train best Networks

To get the best networks we used in the paper for each dataset run run_best_nets.py. It will save a Networks/DATASET_best_dae.h5 network for each dataset. This shouldn't take more than half an hour.

Alternatively you can use your own best results from the random search by running the corresponding cells in the Get_Search_Results.ipynb.

These files are needed for the following steps.

Evaluation

Next we use these networks for Reconstruction Clustering and store all of the results for later analysis.

run_evaluation.py

NOTE: This should take about an hour and use ca 21 GBytes of disk space.

Plots

The Plots.ipynb notebook generates all the figures used in the paper. Once you've run all the other steps you should be able to able to generate them all yourself.

Database Dump

With the file dump.zip we've included a dump of the MongoDB that contains all the information about all the experimental runs we did.

Demo Images

Regular (soft) Reconstruction Clustering

These animations show the cluster assignment during a run of RC on 120 different test images. For each dataset we used the best DAE trained on single object images.

Shapes

shapes animation

Multi MNIST

Multi-MNIST animation

Corners

Corners animation

Bars

Bars animation

MNIST + Shape

MNIST + Shape animation

Simple Superposition

Simple Superposition animation

Hard Reconstruction Clustering

These animations show the hard cluster assignment during a run of RC on 120 different test images. To improve visibility we toned down the brightness on the background pixels. Here we used the best DAE trained on multi object images.

Shapes

shapes animation

Multi MNIST

Multi-MNIST animation

Corners

Corners animation

Bars

Bars animation

MNIST + Shape

MNIST + Shape animation

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Code for the "Binding via Reconstruction Clustering" paper

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