brain of mat kelcey...

evolved channel selection

March 01, 2021 at 10:20 PM | categories: projects, ga, jax

rather than use all 13 channels in a multi spectral image for classification can we train a model that is robust to all combos, at all resolutions, and use a genetic algorithm to choose which are the most valuable? (spoiler; yes)

solving y=mx+b... with jax on a tpu pod slice

February 07, 2021 at 01:00 PM | categories: tpu, ensemble_nets, jax, projects, haiku

a 4 (and a bit) part tutorial / colab / screencast series starting with jax fundamentals working up a data parallel approach to running on a cloud tpu pod slice... all focused on solving the toughest problem in machine learning; 1d y=mx+b

out of distribution detection using focal loss

December 02, 2020 at 01:00 PM | categories: objax, jax, projects

a series of small experiments on using focal loss to do out of distribution detection

dithernet very slow movie player

October 21, 2020 at 10:30 PM | categories: gan, jax, projects, objax

a GAN experiment to generate dithers for an eink screen minimising pixel change between frames for a very slow movie player.

ensemble networks

September 17, 2020 at 06:30 AM | categories: objax, projects, ensemble_nets, jax

ensemble nets; using jax vmap to batch over not just the inputs of a model but also sets of multiple models parameters.

solving cartpole... by evolving the raw bytes of a 1.4KB tflite microcontroller serialised model

September 13, 2019 at 12:00 AM | categories: projects

evolving a controller for cartpole using an evolutionary algorithm that operates directly on the byte level of a serialised tf lite microcontroller model.

a half baked pix2pix experiment for road trip videos with teaching forcing

June 26, 2019 at 01:00 PM | categories: gan, projects

a half baked attempt to train a pix2pix model on dash cam videos from a roadtrip around the eastern state of the u.s.

pybullet grasping with time contrastive network embeddings

June 11, 2019 at 01:00 PM | categories: projects

an example of using time contrastive networks to learn embeddings for the pose of a kuka arm in a pybullet simulated grasping environment.

counting bees on a rasp pi with a conv net

May 17, 2018 at 12:30 PM | categories: projects

training a fully convolutional unet to count bees from a raspberry pi stuck to the side of a hive.

cartpole++

August 11, 2016 at 10:00 PM | categories: projects

a pybullet 3d version of cartpole where the pole isn't connected to the cart and you have to learn from pixels.

learning to do laps with reinforcement learning and neural nets

February 13, 2016 at 10:00 PM | categories: projects

using reinforcement learning to train neural nets for driving a simulated robot around a track.

do all first links on wikipedia lead to philosophy?

August 13, 2011 at 03:00 PM | categories: projects

using hadoop and a wikipedia dump to test the hypothesis that all first links on pages eventually lead to philosophy.

popular posts...

ensemble nets : training ensembles as a single model using jax on a tpu pod slice(sept 2020)

bnn : counting bees with a rasp pi (may 2018)

drivebot : learning to do laps with reinforcement learning and neural nets (feb 2016)

wikipedia philosophy : do all first links on wikipedia lead to philosophy? (aug 2011)

cartpole++ : deep RL hacking with a complex 3d cart pole environment (aug 2016)

malmomo : deep RL hacking on minecraft with malmo (jan 2017)

some papers from my time at google research / brain...

my honours thesis

the co-evolution of cooperative behaviour (1997) evolving neural nets with genetic algorithms for communication problems.

old projects...