This repository is the code for the paper: Studying the Evolution of Neural Activation Patterns during Training of Feed-Forward ReLU Networks

1. Make sure you have Pytorch (1.7.1) installed. (This code has been tested on Python 3.9.1).
2. Install the requirements:

   pip install --user -r requirements.txt
   

3. Make sure that visdom is running on your machine:

   mkdir logs
   visdom -env_path ./logs
   

   Go to http://localhost:8097

In the following we give all steps required to reproduce the experiments shown in the figures of the paper.

Early-Phase Plots (Figure 1)

1. Run ./exp.sh --gpu 0 -d run measures cifar10 early

• You can observe the progress using ./exp.sh --stats measures cifar10 early
• Multiple GPUs can be used in parallel, just start multiple processes using ./exp.sh --gpu 1 ...

3. Extract data from log files using: ./paper_util/measures.sh
4. Alternatively, obtain the data directly from visdom (go to http://localhost:8097)

Entropycurve-Plot (Figure 2)

1. Run ./exp.sh --gpu 0 -d run entropycurve cifar10

• You can observe the progress using ./exp.sh --stats entropycurve cf10
• Multiple GPUs can be used in parallel, just start multiple processes using ./exp.sh --gpu 1 ...

2. Extract data from log files using: ./plot.py entropycurve ./logs/entropycurve-*
3. Alternatively, obtain the data directly from visdom (go to http://localhost:8097)

Full Training-Time Method Plots (Figure 3)

1. Run ./exp.sh --gpu 0 -d run measures-methods cifar10 full save

• This will precompute the network weights required for the last measure (Jaccard Index of the current training step and the final network state).
• You can observe the progress using ./exp.sh --stats measures-methods cifar10 full save
• Multiple GPUs can be used in parallel, just start multiple processes using ./exp.sh --gpu 1 ...

2. Run ./exp.sh --gpu 0 -d run measures-methods cifar10 full actswithend

• This will precompute the network weights required for the last measure (Jaccard Index of the current training step and the final network state).
• You can observe the progress using ./exp.sh --stats measures-methods cifar10 full save
• Multiple GPUs can be used in parallel, just start multiple processes using ./exp.sh --gpu 1 ...

3. Extract data from log files using: ./paper_util/methods.sh
4. Alternatively, obtain the data directly from visdom (go to http://localhost:8097)