COCO 2017 Updated +Created
This is the one used on MLperf v2.1 ResNet, likely one of the most popular choices out there.
2017 challenge subset:
  • train: 118k images, 18GB
  • validation: 5k images, 1GB
  • test: 41k images, 6GB
TODO didn't manage from source Ubuntu 22.04, their setup bitrotted way too fast... it's shameful even. Until I gave up and went for the magic Docker of + github.com/bbcmicrobit/micropython, and it bloody worked:
git clone https://github.com/bbcmicrobit/micropython
cd micropython
git checkout 7fc33d13b31a915cbe90dc5d515c6337b5fa1660
docker pull ghcr.io/carlosperate/microbit-toolchain:latest
docker run -v $(pwd):/home --rm ghcr.io/carlosperate/microbit-toolchain:latest yt target bbc-microbit-classic-gcc-nosd@https://github.com/lancaster-university/yotta-target-bbc-microbit-classic-gcc-nosd
docker run -v $(pwd):/home --rm ghcr.io/carlosperate/microbit-toolchain:latest make all

# Build one.
tools/makecombinedhex.py build/firmware.hex examples/counter.py -o build/counter.hex
cp build/counter.hex "/media/$USER/MICROBIT/"

# Build all.
for f in examples/*; do b="$(basename "$f")"; echo $b; tools/makecombinedhex.py build/firmware.hex "$f" -o "build/${b%.py}.hex"; done
The pre-Docker attempts:
sudo add-apt-repository -y ppa:team-gcc-arm-embedded
sudo apt update
sudo apt install gcc-arm-embedded
sudo apt install cmake ninja-build srecord libssl-dev

# Rust required for some Yotta component, OMG.
sudo snap install rustup
rustup default 1.64.0

python3 -m pip install yotta
The line:
sudo add-apt-repository -y ppa:team-gcc-arm-embedded
warns:
E: The repository 'https://ppa.launchpadcontent.net/team-gcc-arm-embedded/ppa/ubuntu jammy Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
and then the update/sudo apt-get install gcc-arm-embedded fails, bibliography:
Attempting to install Yotta:
sudo -H pip3 install yotta
or:
python3 -m pip install --user yotta
was failing with:
Exception: Version mismatch: this is the 'cffi' package version 1.15.1, located in '/tmp/pip-build-env-dinhie_9/overlay/local/lib/python3.10/dist-packages/cffi/api.py'.  When we import the top-level '_cffi_backend' extension module, we get version 1.15.0, located in '/usr/lib/python3/dist-packages/_cffi_backend.cpython-310-x86_64-linux-gnu.so'.  The two versions should be equal; check your installation.
Running:
python3 -m pip install --user cffi==1.15.1
did not help. Bibliography:
From a clean virtualenv, it appears to move further, and then fails at:
Building wheel for cmsis-pack-manager (pyproject.toml) ... error
error: [Errno 2] No such file or directory: 'cargo'
So we install Rust and try again, OMG:
sudo snap install rustup
rustup default stable
which at the time of writing was rustc 1.64.0, and then OMG, it worked!! We have the yt command.
However, it is still broken, e.g.:
git clone https://github.com/lancaster-university/microbit-samples
cd microbit-samples
git checkout 285f9acfb54fce2381339164b6fe5c1a7ebd39d5
cp source/examples/invaders/* source
yt clean
yt build
blows up:
annot import name 'soft_unicode' from 'markupsafe'
bibliography:
Erhu Updated +Created
Figure 1.
A blind erhu street performer playing in Jingzhou, Hubei (2006)
Source. Playing the erhu is a traditional occupation for blind people in China, a notable example being Abing.
Video 2.
The 12 Most Famous Erhu Melodies in China (2021)
Source. TODO transcribe list.
Marketing Updated +Created
Century egg Updated +Created
Figure 1.
Century eggs
. Source. One of the few Chinese things Ciro Santilli never got into!
Douhua Updated +Created
Freshly made douhua is a blessing.
Zongzi Updated +Created
Eaten during Dragon Boat Festival, but can be bought year round.
Buy frozen. Pick the ones with meat and eggs!!! Boil.
Cost about 4 dollars for 2.
You can't eat them every day because too heavy, but they are so amazingly tasty!!!
Chinese poet Updated +Created
Li Bai Updated +Created
This is likely the most famous Chinese poet of all time.
Chinese poetry anthology Updated +Created
Classical Chinese poetry form Updated +Created
Chinese poetry bibliography Updated +Created
Chinese musical instrument Updated +Created
The main four instruments are undoubtedly:but there is also amazing content on others which must not be missed, including:
Video 1.
25 musical instruments OF China by Learning Music Hub
. Source. Great video, covers all the most important ones briefly with examples of varying relevance.
Video 2.
A beginner’s guide to Chinese musical instruments by SCMP
. Source. 2024. Terrible editing, way to hard to see instrument name.
Video 3.
Chinese vs Western musical instrument battle scene from Our Shining Days
. Source. A bit cheap, but it has some value.
Chinese traditional music label Updated +Created
Chinese traditional music album Updated +Created
Li sao (guqin song) Updated +Created
www.facebook.com/131402556881886/posts/655763214445815/ gives an origin:
Li Sao was composed by Cheng Kangshi in late Tang dynasty based on the poem Li Sao, authored by Qu Yuan (340-278 BC) in the Warring States period of ancient China.
The silkqin.com entry: www.silkqin.com/04qart/07sqmp/57ls.htm does not mention this however.
Video 2.
Lisao performed by NiniGuqin (2020)
Source.
Zhang Ziqian Updated +Created
Jackdaw Playing With Water Updated +Created
A Jackdaw is a type of crow: en.wikipedia.org/wiki/Western_jackdaw
Considered one of the 10 famous Chaozhou music pieces TODO list.
Was also adapted by Liu Baoshan (1937-1997) as a pipa song. Ciro Santilli prefers the pipa version.
Video 1.
Jackdaw Playing With Water performed by Xu Lingzi on the guzheng at the Wiener Musikverein
. Source.
Video 2.
Jackdaw Playing With Water performed by Lin Shicheng on the pipa
. Source.
Zhu Bajie Updated +Created

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