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DMamba: Decomposition-enhanced Mamba for Time Series Forecasting

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  • Haebom
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์ €์ž

Ruxuan Chen, Fang Sun

๐Ÿ’ก ๊ฐœ์š”

๋ณธ ๋…ผ๋ฌธ์€ ์‹œ๊ณ„์—ด ์˜ˆ์ธก์—์„œ Mamba ๋ชจ๋ธ์˜ ๋น„์ •์ƒ์„ฑ ํŒจํ„ด ์ฒ˜๋ฆฌ ๋Šฅ๋ ฅ์„ ๊ฐœ์„ ํ•˜๊ธฐ ์œ„ํ•ด DMamba๋ฅผ ์ œ์•ˆํ•œ๋‹ค. DMamba๋Š” ์‹œ๊ณ„์—ด์„ ๊ณ„์ ˆ ๋ฐ ์ถ”์„ธ ์„ฑ๋ถ„์œผ๋กœ ๋ถ„ํ•ดํ•˜๊ณ , ๊ฐ ์„ฑ๋ถ„์˜ ํŠน์„ฑ์— ๋งž๋Š” ์„œ๋กœ ๋‹ค๋ฅธ ๋ณต์žก์„ฑ์˜ ๋ชจ๋“ˆ์„ ์ ์šฉํ•˜์—ฌ ์˜ˆ์ธก ์„ฑ๋Šฅ์„ ๋†’์ธ๋‹ค. ๊ณ„์ ˆ ์„ฑ๋ถ„์—๋Š” ๋ณต์žกํ•œ ์ƒํ˜ธ์ž‘์šฉ์„ ํฌ์ฐฉํ•˜๋Š” Mamba ์ธ์ฝ”๋”๋ฅผ, ์ถ”์„ธ ์„ฑ๋ถ„์—๋Š” ์ €์ฐจ์› ๊ด€๊ณ„ ํ•™์Šต์— ์ ํ•ฉํ•œ MLP๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์ƒˆ๋กœ์šด SOTA ์„ฑ๋Šฅ์„ ๋‹ฌ์„ฑํ–ˆ๋‹ค.

๐Ÿ”‘ ์‹œ์‚ฌ์  ๋ฐ ํ•œ๊ณ„

โ€ข
์‹œ๊ณ„์—ด์˜ ๊ณ„์ ˆ ๋ฐ ์ถ”์„ธ ์„ฑ๋ถ„๋ณ„ ํŠน์„ฑ์— ๋งž์ถฐ ๋ชจ๋ธ ๊ตฌ์กฐ์˜ ๋ณต์žก์„ฑ์„ ๋‹ฌ๋ฆฌ ์ ์šฉํ•˜๋Š” ๊ฒƒ์ด ์˜ˆ์ธก ์„ฑ๋Šฅ ํ–ฅ์ƒ์— ํšจ๊ณผ์ ์ด๋‹ค.
โ€ข
DMamba๋Š” ๊ธฐ์กด Mamba ๊ธฐ๋ฐ˜ ๋ชจ๋ธ ๋ฐ ๋ถ„ํ•ด ๊ธฐ๋ฐ˜ ๋ชจ๋ธ ๋Œ€๋น„ ๋›ฐ์–ด๋‚œ ์„ฑ๋Šฅ์„ ๋ณด์—ฌ, ๋น„์ •์ƒ ์‹œ๊ณ„์—ด ์˜ˆ์ธก ๋ถ„์•ผ์˜ ์ƒˆ๋กœ์šด ํ‘œ์ค€์„ ์ œ์‹œํ•œ๋‹ค.
โ€ข
์ œ์•ˆ๋œ ๋ฐฉ๋ฒ•๋ก ์ด ๋” ๋ณต์žกํ•œ ์‹œ๊ณ„์—ด ํŒจํ„ด์ด๋‚˜ ๋‹ค์–‘ํ•œ ์œ ํ˜•์˜ ๋ถ„ํ•ด ๊ธฐ๋ฒ•์— ๋Œ€ํ•ด์„œ๋„ ์ผ๋ฐ˜ํ™”๋  ์ˆ˜ ์žˆ๋Š”์ง€ ์ถ”๊ฐ€์ ์ธ ์—ฐ๊ตฌ๊ฐ€ ํ•„์š”ํ•˜๋‹ค.
๐Ÿ‘