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๋งŒ๋“  ์‚ฌ๋žŒ

Hello! I'm Devorah, an independent developer and the creator of NEXA, exploring Physical AI, robotics simulation, and reinforcement learning.

I develop and experiment with MuJoCo simulations, SO-101 robotic arms, PPO reinforcement learning, and AI training environments.

My goal is to make AI learning visible, understandable, and accessible through simulation and shared research.

Devorah | NEXA Physical AI

CONNECT AI LAB ๊ณต๋™ ์—ฐ๊ตฌ ์ฐธ์—ฌ ๋ชจ๋ธ ยท ๋ชจ๋ธ ์—ฐ๊ฒฐ(Connect AI) ์‹คํ—˜์€ ํ…Œ์ŠคํŠธ ์ค‘์ž…๋‹ˆ๋‹ค.

LINK-01 ๊ฒฐ์ • ๋‘๋‡Œ ยท ์žฅ์• ๋ฌผ ํ”ผํ•˜๊ธฐ

CONNECT AI WORLD ๋กœ๋ด‡ ์›น ํ•™์Šต๊ธฐ์—์„œ ๋‚ด๊ฐ€ ์ฝ”์Šค๋ฅผ ๋งŒ๋“ค๊ณ (์žฅ์• ๋ฌผ ยท ๋ชฉํ‘œ ยท ์ถœ๋ฐœ์ ), ๋ธŒ๋ผ์šฐ์ € ์•ˆ์—์„œ PPO๋กœ ๊ฐ•ํ™”ํ•™์Šตํ•œ LINK-01 ๋กœ๋ด‡์˜ ๊ฒฐ์ • ๋‘๋‡Œ์ž…๋‹ˆ๋‹ค. ๋‘๋‡Œ๋Š” 0.5์ดˆ๋งˆ๋‹ค ์ง์ง„ ยท ์™ผ์ชฝ์œผ๋กœ ยท ์˜ค๋ฅธ์ชฝ์œผ๋กœ ยท ์ œ์ž๋ฆฌ ์ขŒํšŒ์ „ ยท ์ œ์ž๋ฆฌ ์šฐํšŒ์ „ ์ค‘ ํ•˜๋‚˜๋ฅผ ๊ณ ๋ฆ…๋‹ˆ๋‹ค. ๊ฑท๊ธฐ๋Š” ๋”ฐ๋กœ ๋ฏธ๋ฆฌ ๋ฐฐ์šด ๊ฑท๊ธฐ ์‹ ๊ฒฝ๋ง(CPG โ†’ ๋ชจ๋ฐฉ ํ•™์Šต MLP, ๊ณ ์ • ยท PPO ์•„๋‹˜)์ด ํ•˜๊ณ , ์ด ํŒŒ์ผ์—๋Š” ๊ฒฐ์ • ๋‘๋‡Œ๋งŒ ๋“ค์–ด ์žˆ์Šต๋‹ˆ๋‹ค.

๊ณผ์ œ ์žฅ์• ๋ฌผ ํ”ผํ•˜๊ธฐ (avoid_obstacles)
์•ฝ์†(contract) link01-decision/avoid_obstacles/obs21-act5/walker51-14/v1
๋ฐฐ์šด ์ฝ”์Šค (trained_on) ded0f037 ยท ๋‚ด ์ฝ”์Šค 2
ํ•จ๊ป˜ ์˜ฌ๋ฆฐ ์ฝ”์Šค ์—†์Œ
๊ด€์ฐฐ 21๊ฐœ ๋ชฉํ‘œ ๊ฑฐ๋ฆฌ ยท ๋ชฉํ‘œ ๋ฐฉํ–ฅ sin ยท ๋ชฉํ‘œ ๋ฐฉํ–ฅ cos ยท ๊ฑฐ๋ฆฌ ์„ผ์„œ -100ยฐ ยท ๊ฑฐ๋ฆฌ ์„ผ์„œ -80ยฐ ยท ๊ฑฐ๋ฆฌ ์„ผ์„œ -60ยฐ ยท ๊ฑฐ๋ฆฌ ์„ผ์„œ -40ยฐ ยท ๊ฑฐ๋ฆฌ ์„ผ์„œ -20ยฐ ยท ๊ฑฐ๋ฆฌ ์„ผ์„œ 0ยฐ ยท ๊ฑฐ๋ฆฌ ์„ผ์„œ 20ยฐ ยท ๊ฑฐ๋ฆฌ ์„ผ์„œ 40ยฐ ยท ๊ฑฐ๋ฆฌ ์„ผ์„œ 60ยฐ ยท ๊ฑฐ๋ฆฌ ์„ผ์„œ 80ยฐ ยท ๊ฑฐ๋ฆฌ ์„ผ์„œ 100ยฐ ยท ์•ž ์†๋„ ยท ํšŒ์ „ ์†๋„ ยท ์ง์ „ ์„ ํƒ 1 ยท ์ง์ „ ์„ ํƒ 2 ยท ์ง์ „ ์„ ํƒ 3 ยท ์ง์ „ ์„ ํƒ 4 ยท ์ง์ „ ์„ ํƒ 5
์‹ ๊ฒฝ๋ง 21 โ†’ 64 โ†’ 64 โ†’ 5 ยท tanh

์‹œํ—˜ ๊ฒฐ๊ณผ (brain.json์— ์ ํžŒ ์ˆซ์ž ๊ทธ๋Œ€๋กœ)

์‹œํ—˜ ์„ฑ๊ณต๋ฅ  ํ‰๊ท  ๋ณด์ƒ ์”จ์•— ์ง€๋ฌธ ์—”์ง„
์„ฑ๊ณต๋ฅ  (๊ณต์‹ ์‹œํ—˜ 20ํŒ) 85% 18.45 91001โ€“91020 07d367ea mujoco-wasm 3.16.0

๊ณต์‹ ์‹œํ—˜ 20ํŒ์€ ๊ทธ ๊ณผ์ œ์˜ ๋ฌด์ž‘์œ„ ์ฝ”์Šค(์”จ์•— 91001โ€“91020)์ž…๋‹ˆ๋‹ค. ๋‚ด๊ฐ€ ๋งŒ๋“  ์ฝ”์Šค ํ•˜๋‚˜์—์„œ๋งŒ ๋ฐฐ์šด ๋‘๋‡Œ๋Š” ๋ฌด์ž‘์œ„ ์ฝ”์Šค์—์„œ ๋‚ฎ๊ฒŒ ๋‚˜์˜ฌ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

๋‚ด๊ฐ€ ์ •ํ•œ ํ•™์Šต ์„ค์ •

ํ•ญ๋ชฉ ๊ฐ’
์•Œ๊ณ ๋ฆฌ์ฆ˜ ppo (stable-baselines3 ์„ค์ •)
ํ•™์Šต ๊ฐฑ์‹  10
๊ฒฐ์ • ์ˆ˜ 20,480
ํ•™์Šต๋ฅ  0.0003
๊ฐ๋งˆ ฮณ 0.97
GAE ฮป 0.95
์—”ํŠธ๋กœํ”ผ 0.01
ํด๋ฆฝ 0.2
๋ณ‘๋ ฌ ํŒ 8
์ˆจ์€ ์ธต 64
์„ผ์„œ ๊ธฐ๋ณธ
์”จ์•— 575
๊ฑธ๋ฆฐ ์‹œ๊ฐ„ 78์ดˆ

๋ณด์ƒ ๊ฐ€์ค‘์น˜ ยท progress +4.5 ยท reach +10.5 ยท collision -2 ยท time -0.05 ยท fall -5 ยท out -3.5

ํ•™์Šต ๊ณก์„  (๊ฒ€์ฆ ํŒ ์„ฑ๊ณต๋ฅ )

๊ฒฐ์ • ์ˆ˜ ์„ฑ๊ณต๋ฅ 
0 0%
2,048 0%
4,096 0%
6,144 0%
8,192 0%
10,240 75%
12,288 88%
14,336 88%
16,384 100%
18,432 100%
20,480 100%

์“ฐ๋Š” ๋ฒ•

from huggingface_hub import hf_hub_download
from connect_tycoon.link01.brain import WorldBrain     # pip install "connect-tycoon @ git+https://github.com/wonseokjung/connect-tycoon"
brain = WorldBrain.from_file(hf_hub_download("devorah-ai-2016/connectailab-rl-devorah-v1-avoid-obstacle-link01", "brain.json"))
brain.act(obs)        # ๊ด€์ฐฐ 21๊ฐœ (์œ„ ์ˆœ์„œ) โ†’ ์„ ํƒ์ง€ ๋ฒˆํ˜ธ

์›น ํ•™์Šต๊ธฐ์—์„œ ๋‘๋‡Œ ์˜ฌ๋ฆฌ๊ธฐ๋กœ ์ด brain.json์„ ๋‹ค์‹œ ์˜ฌ๋ฆฌ๋ฉด ๊ฐ™์€ ์‹œํ—˜์„ ๊ทธ๋Œ€๋กœ ๋‹ค์‹œ ๋ณผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์˜์‚ฌ๊ฒฐ์ • ๋ชจ๋ธ ๋งŒ๋“ค๊ธฐ: LINK-01 ์˜์‚ฌ๊ฒฐ์ • ๋ชจ๋ธ Colab

๋งŒ๋“  ๊ณณ ยท CONNECT AI LAB ร— AI CITY BUILDERS

์‹œ๋ฎฌ๋ ˆ์ดํ„ฐ ์œ„์˜ ๊ต์œก์šฉ ๋ชจ๋ธ์ž…๋‹ˆ๋‹ค. ์‹ค์ œ ๋กœ๋ด‡์— ์“ฐ๊ธฐ ์ „์— ๊ทธ ๋กœ๋ด‡ ยท ๊ทธ ๊ณต๊ฐ„์—์„œ ๋‹ค์‹œ ๊ฒ€์ฆํ•˜์„ธ์š”.

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