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For pre-processing N-MNIST data so that it might be classified via a Tsetlin Machine

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aAMoss/EventImageDataProcessor

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Event Image Data Processor

Overview

The purpose of this program is to pre-process the N-MNIST dataset (an event-image dataset, AER) for classification with a Multiclass Tsetlin Machine.

The program is still a work in progress, and was created for my 3rd year university project.

Please be nice, this is my first attempt at coding a larger program.

There's a lot to improve and debug, I make no guarantees for the program compiling or working on your system.

I currently run a Manjaro-based OS, in the past I have run the program on both MacOS and WIndows with a few alterations, in future I will be making the necessary additions to ensure it can run on each of these platforms without issue.


Recent Updates

Introduced commandline arguments, need to tidy up these functions and move them somewhere other than eidp.c.

Will need to remove the superfluous functions for setting the program variables.. also please ignore the additional program files that seem to have little or nothing in them- currently in the process of refactoring and expanding the code.

Commandline argument functions now in hyper.c, hyper.h hold the definitions

Still a few variables to go, in addition to some general formatting.

I've decided to not bother with a multi-threaded version of the program, it's not the fastest but it does the job.

My plan is to continue refining and getting this program to a suitable end state while I plan and start on a more robust and expanded version 2 of the tool. More on that soon.

EIDP

Coming soon

TMDA

Coming soon

Instructions

Set-up

Clone the respository.

Ensure that you have a copy of the N-MNIST dataset in the top-level directory.

The dataset and its accompanying paper are available here and here.

Ensure the dataset is located here: EventImageDataProcessor/N-MNIST/

Ensure that its sub-directories are labelled: Test and Train.

Run make to generate the two tools: eidp and tmda.

WIP

To Run

To run the program:

./eidp $MODE $FEATURES $SIZE $OVERLAP

For example:

./eidp pbfe 20 1000 100

The above example selects:

  • the patch-based feature extraction method, pbfe
  • 20 features
  • 1000 events per event-packet (event frame)
  • 100 events overlap, each event-packet overlaps by 100 events- the last 100 events of the previously processed event-packet, are the first 100 in the next.

$MODE:

The feature extraction method, choose:

raw - no processing of any kind, extracts the event data and converts to a boolean representation without any processing, feature extraction, or minimization.

pbfe - a statistical patch-based feature extraction method, will be linking the relevant paper.

idfe - an inter-packet feature extraction method, will be linking the relvant paper that inspired it.

$FEATURES:

The number of features. Determines the number of booleans for each data sample when generating the dataset for the Tsetlin Machine.

Depending on the feature extraction method this may be overidden or prompt the user to select a different value.

$SIZE:

Sets the number of events in each event packet. Default range is 100 to 1500 events, these limits can be altered prior to compiling the program.

$OVERLAP:

Sets the number of events by which the event packets overlap. The range is 0 to $SIZE-1. This ensures that the overlap is always less than the packet size.

To Do List

EIDP

  • Improve that shambles of a makefile
  • Create hyper.c and hyper.h, all hyper parameters for the pipeline will be stored and modified from here
  • Commandline arguments, will require moving a lot of code from eidp.c into another source file
  • Improve and expand on data logging functions, will all be moved to (and called from) log.c log.h
  • Improve terminal messages when program is in operation, possible another source file
  • Improve and refactor pbfe.c and idfe.c, will eventually nix process.h
  • Improve and refactor... or nix completely... raw.c and raw.h

TMDA

  • Major refactor and improvement, this is vague I know
  • More logging, better logging
  • Better terminal messages
  • Commandline arguments, omg it's tedious to copy and paste the directory name you wish to process, I know I said no particular order but...

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For pre-processing N-MNIST data so that it might be classified via a Tsetlin Machine

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