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354 words
Model Based RL

python cs285/scripts/run_hw4.py -cfg experiments/mpc/halfcheetah_0_iter_layer_1_size_32.yaml python cs285/scripts/run_hw4.py -cfg experiments/mpc/halfcheetah_0_iter_layer_1_size_16.yaml python cs285/scripts/run_hw4.py -cfg experiments/mpc/halfcheetah_0_iter_layer_2_size_16.yaml Get predictions pred_obs_deltas_normalized = self.dynamics_modelsi pred_obs_deltas = pred_obs_deltas_normalized * self.obs_delta_std + self.obs_delta_mean pred_next_obs = obs + pred_obs_deltas ``` Action Selection rewards = np.array([

Sep 23, 2024
1365 words
Web Hoarding Attempts

The key idea is that Cloudflare R2 has low storage fees(10 dollar per TB per month), and no egress fees. Egress fees are scary when I consume videos like this, say, AWS or GCP's egress

Sep 09, 2024
219 words
Problematic Course Platform

Regarding the Educoder platform mentioned before, the platform is very problematic. It doesn't have any CSP policies, you can input markdown to it, and I discovered this when it rendered images directly from my CDN

Aug 15, 2024
313 words
Trying Out LadyBird

Basically there are 3 kinds of browsers left, like the dominant one is Chromium based browsers(which is integrated into Electron apps), then there is firefox, then there is WebKit-based(webkitgtk) based like Safari or Gnome Epiphany

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Jul 27, 2024
2325 words
Some Updates in Hong Kong

Today I finally decided to go out, despite the heat. So basically I hopped on bus 91 and here I am in Clearwater bay but it's a pretty good place There is a beautiful beach

Jul 23, 2024
1137 words
Finetuning LLMs on my Blog

AWS published a machine learning blog about how you can finetune Claude 3 Haiku on the Bedrock really easily, and it got me very interested and wanted to set up Haiku to imitate me. Specifically

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So following the horrible semester end, came a horrible start of summer. I was gonna join the HKUST research program, but it started very wrong. So I didn't get an exit endorsement for study, or

May 30, 2024
1706 words
Moving My Website to Next.js

So anyways, long story short, I started learning and after 3 weeks my new website was born. It just displayed my blogs and visitinfos and a message box. So the problem with frontend+backend+database, where your

Apr 30, 2024
288 words
Asahi Linux

So the files are not available in China, just download and upload them to a S3 bucket (hopefully available in China), then change the urls in the installing script(alx.sh file and installer json file) MacBook

Apr 10, 2024
2241 words
Booting PostMarketOS

After getting rid of the crappy UI and installing LineageOS on my Redmi Phone, I was still not satisfied. Mainly because I am using WeChat too frequently, and it is kinda addictive and time-wasting. Those

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