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The source code for "Making sense of sensory input" and "Making sense of raw input"

Installation instructions

You need to have installed Haskell and Clingo (version 4.5 or above).

  1. To install Haskell:

  2. To install Clingo (version 4.5 or above):

Compilation instructions

Once you have Haskell and Clingo installed, just run (from the root directory):

  • cd code
  • cabal update
  • cabal configure
  • cabal new-build
  • cabal install
  • cd ..

Simple Examples

Once the system is installed (see above), you are ready to try some examples.

To run these examples, make sure you are in the root directory called apperception.

A single sensor oscillating between on and off:

  • ~/.cabal/bin/solve misc predict_1.lp

Two sensors, one oscillates between on and off, while the other has the same reading throughout:

  • ~/.cabal/bin/solve misc predict_2.lp

Exogenous action:

  • ~/.cabal/bin/solve misc exog_1.lp

Searching through templates of increasing complexity, looking for a unified interpretation:

  • ~/.cabal/bin/solve eca-general predict_eca_245_b3.lp

More Complex Examples

These examples take significantly longer to run than the simple examples above. There is a time-limit of 4 hours per template.

ECA prediction: ~/.cabal/bin/solve eca predict_110_b5_t14.lp

ECA retrodiction: ~/.cabal/bin/solve eca retrodict_110_b5_t14.lp

ECA imputation: ~/.cabal/bin/solve eca impute_110_b5_t14.lp

The Seek Whence "theme song" babbbbbcbbdb... ~/.cabal/bin/solve sw predict_3.lp

Music prediction: ~/.cabal/bin/solve music predict_IncyWincySpiderSmall.lp

Rhythm prediction: ~/.cabal/bin/solve rhythm predict_Mazurka.lp

Binding prediction: ~/.cabal/bin/solve binding predict_r2_b5.lp

Occlusion: ~/.cabal/bin/solve occlusion w1

Mislabelled data (noise): ~/.cabal/bin/solve mislabel predict_1_100_0_1.lp

Fuzzy sequences: ~/.cabal/bin/solve noisy 1 3 2

Sokoban: ~/.cabal/bin/solve sokoban e_8_17

Sokoban from pixels: ~/.cabal/bin/solve sok-pixels e_10_3

In general, solve can be run with any file in the data directory. The options are:

  • ~/.cabal/bin/solve eca <file in data/eca>
  • ~/.cabal/bin/solve sw <file in data/sw>
  • ~/.cabal/bin/solve music <file in data/music>
  • ~/.cabal/bin/solve rhythm <file in data/rhythm>
  • ~/.cabal/bin/solve binding <file in data/binding>
  • ~/.cabal/bin/solve occlusion <file in data/binding>
  • ~/.cabal/bin/solve walker [predict/retrodict/impute] <world-id>

Understanding the output of the solve process

When solve is run, it produces...

  • the theory θ = (φ, I, R, C) composed of...
    • the initial conditions (I)
    • the rules (R)
    • the constraints (C)
  • the trace (τ(θ))
  • statistics: the cost of the interpretation θ
  • accuracy: whether or not all the predicted sensor readings match the hidden readings

To generate a latex-readable description of the output:

  • set flag_output_latex = True in Interpretation.hs
  • recompile: scripts/
  • run again

Data generation

The data is already provided in the data/ folder.

But if you want to regenerate it:

  • scripts/
  • cd code
  • ./eca all
  • ./sw all
  • ./music all
  • ./rhythm all


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