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PnP-Corrector: A Universal Correction Framework for Coupled Spatiotemporal Forecasting

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Hao Wu, Fan Xu, Yuxu Lu, Penghao Zhao, Fan Zhang, Hao Jia, Yuxuan Liang, Ruijian Gou, Qingsong Wen, Xian Wu, Xiaomeng Huang, Yuan Gao

๐Ÿ’ก ๊ฐœ์š”

๋ณธ ๋…ผ๋ฌธ์€ ๋‹ค์ค‘ ์ƒํ˜ธ์ž‘์šฉ ๋™์  ์‹œ์Šคํ…œ ์˜ˆ์ธก์—์„œ ๋ฐœ์ƒํ•˜๋Š” ๋ˆ„์  ์˜ค๋ฅ˜ ๋ณ‘๋ชฉ ํ˜„์ƒ์„ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•ด PnP-Corrector๋ผ๋Š” ๋ฒ”์šฉ ๊ต์ • ํ”„๋ ˆ์ž„์›Œํฌ๋ฅผ ์ œ์•ˆํ•ฉ๋‹ˆ๋‹ค. ์ œ์•ˆ๋œ ๋ฐฉ๋ฒ•์€ ๋ฌผ๋ฆฌ ์‹œ๋ฎฌ๋ ˆ์ด์…˜๊ณผ ์˜ค๋ฅ˜ ๊ต์ • ๊ณผ์ •์„ ๋ถ„๋ฆฌํ•˜์—ฌ, ๊ธฐ์กด ๋ฌผ๋ฆฌ ์—”์ง„์„ ๊ณ ์ •ํ•œ ์ฑ„ ์˜ค๋ฅ˜ ๊ต์ • ์—์ด์ „ํŠธ๋งŒ ํ•™์Šต์‹œ์ผœ ์‹œ์Šคํ…œ์—์„œ ๋ฐœ์ƒํ•˜๋Š” ์ฒด๊ณ„์ ์ธ ํŽธํ–ฅ์„ ์„ ์ œ์ ์œผ๋กœ ์™„ํ™”ํ•ฉ๋‹ˆ๋‹ค. ์ด๋ฅผ ํ†ตํ•ด ์žฅ๊ธฐ ์˜ˆ์ธก์˜ ์•ˆ์ •์„ฑ๊ณผ ์ •ํ™•์„ฑ์„ ํฌ๊ฒŒ ํ–ฅ์ƒ์‹œ์ผฐ์Šต๋‹ˆ๋‹ค.

๐Ÿ”‘ ์‹œ์‚ฌ์  ๋ฐ ํ•œ๊ณ„

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์ƒํ˜ธ ์˜ค๋ฅ˜ ์ฆํญ ์™„ํ™”: ๊ฒฐํ•ฉ๋œ ์‹œ์Šคํ…œ์—์„œ ๋ฐœ์ƒํ•˜๋Š” ์˜ค๋ฅ˜๊ฐ€ ์„œ๋กœ ์ „ํŒŒ๋˜๊ณ  ์ฆํญ๋˜๋Š” ํ˜„์ƒ(Reciprocal Error Amplification)์„ ํšจ๊ณผ์ ์œผ๋กœ ์ œ์–ดํ•˜์—ฌ ์žฅ๊ธฐ ์˜ˆ์ธก ์„ฑ๋Šฅ์„ ํš๊ธฐ์ ์œผ๋กœ ๊ฐœ์„ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
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๋ฒ”์šฉ ๊ต์ • ํ”„๋ ˆ์ž„์›Œํฌ: ๊ธฐ์กด์˜ ์‚ฌ์ „ ํ›ˆ๋ จ๋œ ๋ฌผ๋ฆฌ ์‹œ๋ฎฌ๋ ˆ์ด์…˜ ์—”์ง„์„ ๊ทธ๋Œ€๋กœ ํ™œ์šฉํ•˜๋ฉด์„œ ๋ณ„๋„์˜ ๊ต์ • ์—์ด์ „ํŠธ๋งŒ ํ•™์Šต์‹œํ‚ค๋Š” ๋ฐฉ์‹์œผ๋กœ, ๋‹ค์–‘ํ•œ ๊ฒฐํ•ฉ ์‹œ๊ณต๊ฐ„ ์˜ˆ์ธก ๋ฌธ์ œ์— ์ ์šฉ ๊ฐ€๋Šฅํ•œ ์œ ์—ฐ์„ฑ์„ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค.
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DSLCast์˜ ํšจ์œจ์„ฑ: ์ œ์•ˆ๋œ ํ”„๋ ˆ์ž„์›Œํฌ์˜ ๋ฐฑ๋ณธ์œผ๋กœ ์„ค๊ณ„๋œ DSLCast ๋ชจ๋ธ ์•„ํ‚คํ…์ฒ˜๋Š” ํšจ์œจ์ ์ธ ์˜ˆ์ธก ๋ชจ๋ธ๋กœ์„œ ์‹ค์งˆ์ ์ธ ์„ฑ๋Šฅ ํ–ฅ์ƒ์— ๊ธฐ์—ฌํ•ฉ๋‹ˆ๋‹ค.
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ํ•œ๊ณ„์ : PnP-Corrector ํ”„๋ ˆ์ž„์›Œํฌ์˜ ์ ์šฉ ๊ฐ€๋Šฅ์„ฑ๊ณผ ์„ฑ๋Šฅ์€ ๊ธฐ๋ฐ˜ ๋ฌผ๋ฆฌ ์‹œ๋ฎฌ๋ ˆ์ด์…˜ ์—”์ง„์˜ ์ •ํ™•์„ฑ๊ณผ ๊ต์ • ์—์ด์ „ํŠธ ํ•™์Šต ๋ฐ์ดํ„ฐ์˜ ์งˆ์— ํฌ๊ฒŒ ์˜์กดํ•  ์ˆ˜ ์žˆ์œผ๋ฉฐ, ๊ทน๋‹จ์ ์ธ ์‹œ๊ณต๊ฐ„ ๊ทœ๋ชจ์—์„œ์˜ ์„ฑ๋Šฅ ๊ฒ€์ฆ ๋ฐ ๋‹ค์–‘ํ•œ ์œ ํ˜•์˜ ์‹œ์Šคํ…œ์— ๋Œ€ํ•œ ์ผ๋ฐ˜ํ™” ์—ฐ๊ตฌ๊ฐ€ ํ•„์š”ํ•ฉ๋‹ˆ๋‹ค.
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