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updates, gnuplot for splot, futhark
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7 files changed

+72
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‎ai/books.org‎

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- We flatten the input character images into a single row of features
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- we loss the geometry data
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- such technique would not work for other type of recognition (eg: discent races of elephants)
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- such technique would not work for other type of recognition (eg: discern between races of elephants)
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**** Load Training Data
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**** Load Images
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#+begin_src python
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import numpy as np
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X_test = prepend_bias(load_images("../data/mnist/t10k-images-idx3-ubyte.gz"))
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#+end_src
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**** Load Testing Data
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**** Load Labels
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- We transform the labels to 0 for "not-5" and 1 for "5"
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‎ai/self.org‎

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B1=
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#+end_src
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- https://en.wikipedia.org/wiki/MNIST_database
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- http://web.archive.org/web/20020622183530/http://yann.lecun.com:80/exdb/mnist/
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- Modified NIST (National Institute of Standards and Technology)
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- MSB
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- 28x28 grayscale
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- 1 byte pixels
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- 0x00 white

‎languages/compiled/ml/futhark/self.org‎

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@@ -325,6 +325,16 @@ Giving related functionality a common abstraction.
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val uncurry '^a '^b '^c : (a -> b -> c) -> (a,b) -> c
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#+end_src
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** literate mode
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- img = [ROW][COL]T
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- :img
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- :video
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- [NIMG]img
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- (stepfn, initial_value, num_frames)
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- stepfn s = (img, newval)
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** TODO in-place updates
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- use must be rare
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- a .fut(hark) program might contain a =test block=
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- entrypoint can be elided if it is "main"
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- futharkscript functions https://futhark.readthedocs.io/en/latest/man/futhark-literate.html
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|------------+--------+--------------+-------------------|
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| | | <c> | |
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| $loadimg | "file" | [][]u32 | row major ARGB |
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| $loaddata | "file" | t ¦ (t,t...) | |
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| $loadbytes | "file" | []u8 | |
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| $loadaudio | "file" | [][]f64 | a row per channel |
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| $restore | | | |
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|------------+--------+--------------+-------------------|
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- =input/output sets=
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- can be put on 1 line
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- no record or tuples are permitted
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#+CAPTION: file input/output test block
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#+begin_src futhark
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entry foobar x = x
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-- compiled input @ foo.in
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-- output @ foo.out
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#+end_src

‎languages/compiled/ml/haskell/haskell.org‎

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- https://en.wikipedia.org/wiki/Dependent_type
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- https://en.wikipedia.org/wiki/Generalized_algebraic_data_type
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- tutorial http://caiorss.github.io/Functional-Programming/haskell/README.html
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- tutorial https://github.com/keithfancher/haskell-notes/blob/master/haskell-notes.md
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** deriving - types that can be derived
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|---------+---------------------------------------|

‎languages/compiled/ml/sml.org‎

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- https://smlfamily.github.io/
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- Playlist: Functional Programming with Standard ML (University of Trento)
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https://www.youtube.com/playlist?list=PLbdi8aNvDqlKKXdG7qn0rQsfH0z1hf7FC
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- https://en.wikipedia.org/wiki/Standard_ML
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- Introduction to SML
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https://cs.lmu.edu/~ray/notes/introml/
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- Playlist: Functional Programming with Standard ML (University of Trento)
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https://www.youtube.com/playlist?list=PLbdi8aNvDqlKKXdG7qn0rQsfH0z1hf7FC
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- 23 CME: Principles of Functional Programming M23 https://www.youtube.com/playlist?list=PLsydD1kw8jng2t2G8USQNLz0faYZetPnH
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- https://brandonspark.github.io/150/
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- 1 slides https://brandonspark.github.io/prologue/lecture01.pdf

‎terminal/tools/parsers/self.org‎

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- binary https://lwn.net/Articles/924133/
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- jq for binary https://github.com/wader/fq
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- gnu poke https://www.jemarch.net/poke
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- objdump
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- od
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- xxd
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- library https://kaitai.io/
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- tool: web ui https://datasette.io/
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- tool: fake data generator https://github.com/multiprocessio/fakegen
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- tool: yaml/json/xml/csv/toml https://github.com/TomWright/dasel

‎terminal/tools/visualization/gnuplot/self.org‎

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| label | N at X,Y S | puts a label at X,Y position |
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|---------------+----------------+----------------------------------|
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*** general: splot
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|-------------+-------------+-----------------------------------|
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| dgrid3d | N,N | ???? |
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| xyplane | N | Z value where xyplane is |
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| +ticslevel+ | N | " DEPRECATED |
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| colorbox | - | color range box |
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| pm3d | border lw 1 | surface with lines |
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| isosamples | N | splot lines draw per xz axis |
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| view | X,Z | 0-180 rotation around axis |
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| hidden3d | - | non translucent (disables sample) |
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| | | linestyle 1/2 for top/bottom |
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| | | aka "hidden line removal" |
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|-------------+-------------+-----------------------------------|
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|-------------+------------------------------+-----------------------------------|
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| dgrid3d | N,N | ???? |
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| xyplane | N | Z value where xyplane is |
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| +ticslevel+ | N | " DEPRECATED |
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| colorbox | - | color range box |
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| pm3d | border lw 1 | surface with lines |
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| isosamples | N | splot lines draw per xz axis |
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| view | X,Z | 0-180 rotation around axis |
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| contour | base | |
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| cntrparam | levels auto 9 | |
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| | levels discrete 1, -1 | |
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| | levels incremental -2 .05 .2 | |
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| | first 10 sort | |
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| hidden | | |
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| hidden3d | - | non translucent (disables sample) |
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| | | linestyle 1/2 for top/bottom |
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| | | aka "hidden line removal" |
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|-------------+------------------------------+-----------------------------------|
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#+begin_src gnuplot
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splot f(x,y) with pm3d # surface
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splot f(x,y) lc pal lw 2 # sets isolines color/thicc
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set lt 1 lc "seagreen" lw 3
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#+end_src
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*** palette
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http://gnuplot.info/demo/pm3dcolors.html
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#+begin_src gnuplot
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set palette gray
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set palette rgb 7,5,15
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set palette defined (0 0 0 0, 0.3 1 0 0, 0.6 "blue", 1 "#ffffff")
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set palette defined (0 "blue", 0.5 "red", 1 "white")
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set palette defined (0 "black", 0.5 "blue", 0.5 "red", 1 "white")
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set palette cubehelix start 0 cycles -1. saturation 1
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set palette cubehelix start 1.2 cycles -1 saturation 1
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set palette cubehelix start pi/2 cycles -1 saturation 1
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set palette cubehelix start pi/2 cycles -15 saturation 1
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#+end_src
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*** key
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|-----+---------------+-------------------------------|
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- xterm (xterm tektronix mode)
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- dumb (aka ascii)
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*** palette
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http://gnuplot.info/demo/pm3dcolors.html
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#+begin_src gnuplot
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set palette gray
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set palette rgb 7,5,15
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set palette defined (0 0 0 0, 0.3 1 0 0, 0.6 "blue", 1 "#ffffff")
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set palette defined (0 "blue", 0.5 "red", 1 "white")
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set palette defined (0 "black", 0.5 "blue", 0.5 "red", 1 "white")
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set palette cubehelix start 0 cycles -1. saturation 1
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set palette cubehelix start 1.2 cycles -1 saturation 1
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set palette cubehelix start pi/2 cycles -1 saturation 1
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set palette cubehelix start pi/2 cycles -15 saturation 1
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#+end_src
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* snippets
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- stream - draw last 200 lines, ten times per second

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