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@@ -89,25 +89,46 @@ KLUE ํƒœ์Šคํฌ ์ค‘ ์ผ๋ถ€(๋ชจ๋ธ ํฌ๊ธฐ Base ๊ธฐ์ค€)
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  | Model | Avg | YNAT | KLUE-STS | KLUE-NLI | KLUE-NER | KLUE-RE | KLUE-MRC |
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  |---|---|---|---|---|---|---|---|
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  | | | MacroF1 | PearsonR / F1 | Accuracy | Ent. MacroF1 / Chr. MacroF1 | MicroF1 / AUC | EM / RougeW |
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- | Kiwi COCO-LM | 82.34 | 86.15 | 92.23 / 86.90 | 87.87 | 84.44 / 93.02 | 65.36 / 69.67 | 71.38 / 77.00 |
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- | KLUE RoBERTa | 80.44 | 85.99 | 92.68 / 85.89 | 85.63 | 83.47 / 90.77 | 63.11 / 63.54 | 68.98 / 73.60 |
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- | KoELECTRA | 77.79 | 86.05 | 93.13 / 86.23 | 87.23 | 85.59 / 92.61 | 59.09 / 53.44 | 55.18 / 61.68 |
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- | A.X-Encoder | 82.91 | 85.77 | 92.58 / 86.33 | 87.37 | 87.63 / 93.29 | 65.74 / 68.40 | 74.97 / 79.70 |
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- | KF-DeBERTa | 82.89 | 86.53 | 92.63 / 87.45 | 87.73 | 85.26 / 92.62 | 67.16 / 70.38 | 72.92 / 77.73 |
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- | ModernBERT | 62.36 | 77.05 | 76.63 / 69.62 | 67.40 | 74.96 / 86.15 | 39.40 / 29.13 | 39.51 / 44.02 |
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- | mmBERT | 79.33 | 84.24 | 90.51 / 81.58 | 83.30 | 85.49 / 92.42 | 61.95 / 69.06 | 65.26 / 70.65 |
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  GLUE ํƒœ์Šคํฌ ์ค‘ ์ผ๋ถ€
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  | Model | Avg | SST2 | CoLA | MRPC | STS-B | QQP | MNLI | QNLI | RTE | WNLI |
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  |---|---|---|---|---|---|---|---|---|---|---|
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  | | | Accuracy | MCC | Accuracy / F1 | PearsonR / SpearmanRho | Accuracy / F1 | Accuracy | Accuracy | Accuracy | Accuracy |
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- | Kiwi COCO-LM | 83.02 | 93.01 | 61.16 | 90.93 / 93.47 | 91.00 / 90.79 | 91.12 / 88.10 | 87.64 | 93.26 | 83.03 | 56.34 |
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- | KLUE RoBERTa | 70.75 | 87.27 | 4.45 | 83.82 / 88.26 | 85.24 / 84.92 | 89.44 / 85.50 | 79.78 | 86.78 | 63.54 | 56.34 |
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- | KoELECTRA | 69.49 | 81.65 | 11.84 | 86.03 / 89.69 | 84.48 / 84.24 | 86.35 / 80.87 | 72.73 | 84.94 | 62.09 | 56.34 |
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- | A.X-Encoder | 74.99 | 90.48 | 24.23 | 85.05 / 89.32 | 87.55 / 87.41 | 90.28 / 86.90 | 83.53 | 91.05 | 66.07 | 56.34 |
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- | KF-DeBERTa | 71.34 | 86.47 | 9.25 | 85.05 / 89.57 | 86.81 / 86.54 | 88.34 / 84.10 | 78.46 | 88.19 | 63.18 | 56.34 |
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- | ModernBERT | 80.30 | 95.30 | 86.52 | 86.52 / 90.30 | 90.00 / 89.95 | 90.83 / 87.74 | 88.73 | 93.34 | 66.43 | 49.30 |
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- | mmBERT | 81.01 | 93.69 | 60.79 | 87.75 / 91.38 | 90.81 / 90.79 | 91.35 / 88.42 | 87.46 | 93.06 | 80.14 | 43.66 |
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  ## Limitations
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  | Model | Avg | YNAT | KLUE-STS | KLUE-NLI | KLUE-NER | KLUE-RE | KLUE-MRC |
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  |---|---|---|---|---|---|---|---|
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  | | | MacroF1 | PearsonR / F1 | Accuracy | Ent. MacroF1 / Chr. MacroF1 | MicroF1 / AUC | EM / RougeW |
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+ | **Kiwi COCO-LM** | 82.34 | 86.15 | 92.23 / 86.90 | **87.87** | 84.44 / 93.02 | 65.36 / 69.67 | 71.38 / 77.00 |
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+ | **KLUE RoBERTa** | 80.44 | 85.99 | 92.68 / 85.89 | 85.63 | 83.47 / 90.77 | 63.11 / 63.54 | 68.98 / 73.60 |
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+ | **KoELECTRA** | 77.79 | 86.05 | **93.13** / 86.23 | 87.23 | 85.59 / 92.61 | 59.09 / 53.44 | 55.18 / 61.68 |
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+ | **A.X-Encoder** | **82.91** | 85.77 | 92.58 / 86.33 | 87.37 | **87.63** / **93.29** | 65.74 / 68.40 | **74.97** / **79.70** |
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+ | **KF-DeBERTa** | 82.89 | **86.53** | 92.63 / **87.45** | 87.73 | 85.26 / 92.62 | **67.16** / **70.38** | 72.92 / 77.73 |
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+ | **ModernBERT** | 62.36 | 77.05 | 76.63 / 69.62 | 67.40 | 74.96 / 86.15 | 39.40 / 29.13 | 39.51 / 44.02 |
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+ | **mmBERT** | 79.33 | 84.24 | 90.51 / 81.58 | 83.30 | 85.49 / 92.42 | 61.95 / 69.06 | 65.26 / 70.65 |
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  GLUE ํƒœ์Šคํฌ ์ค‘ ์ผ๋ถ€
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  | Model | Avg | SST2 | CoLA | MRPC | STS-B | QQP | MNLI | QNLI | RTE | WNLI |
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  |---|---|---|---|---|---|---|---|---|---|---|
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  | | | Accuracy | MCC | Accuracy / F1 | PearsonR / SpearmanRho | Accuracy / F1 | Accuracy | Accuracy | Accuracy | Accuracy |
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+ | **Kiwi COCO-LM** | **83.02** | 93.01 | 61.16 | **90.93** / **93.47** | **91.00** / **90.79** | 91.12 / 88.10 | 87.64 | 93.26 | **83.03** | **56.34** |
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+ | **KLUE RoBERTa** | 70.75 | 87.27 | 4.45 | 83.82 / 88.26 | 85.24 / 84.92 | 89.44 / 85.50 | 79.78 | 86.78 | 63.54 | **56.34** |
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+ | **KoELECTRA** | 69.49 | 81.65 | 11.84 | 86.03 / 89.69 | 84.48 / 84.24 | 86.35 / 80.87 | 72.73 | 84.94 | 62.09 | **56.34** |
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+ | **A.X-Encoder** | 74.99 | 90.48 | 24.23 | 85.05 / 89.32 | 87.55 / 87.41 | 90.28 / 86.90 | 83.53 | 91.05 | 66.07 | **56.34** |
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+ | **KF-DeBERTa** | 71.34 | 86.47 | 9.25 | 85.05 / 89.57 | 86.81 / 86.54 | 88.34 / 84.10 | 78.46 | 88.19 | 63.18 | **56.34** |
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+ | **ModernBERT** | 80.30 | **95.30** | **61.92** | 86.52 / 90.30 | 90.00 / 89.95 | 90.83 / 87.74 | **88.73** | **93.34** | 66.43 | 49.30 |
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+ | **mmBERT** | 81.01 | 93.69 | 60.79 | 87.75 / 91.38 | 90.81 / **90.79** | **91.35** / **88.42** | 87.46 | 93.06 | 80.14 | 43.66 |
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+
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+ ### Tokenizer
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+
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+ ์œ„ ํ‘œ์— ๋‚˜์˜จ ๋ชจ๋ธ๋“ค์˜ tokenizer๊ฐ€ ํ•œ๊ตญ์–ด์™€ ์˜์–ด๋ฅผ ์–ผ๋งˆ๋‚˜ ํšจ์œจ์ ์œผ๋กœ ์ฒ˜๋ฆฌํ•˜๋Š”์ง€ ๋น„๊ตํ–ˆ์Šต๋‹ˆ๋‹ค. ํ•œ๊ตญ์–ด ์ƒ˜ํ”Œ ๋ฌธ์„œ(6,162 ๋ฐ”์ดํŠธ, 534 ์–ด์ ˆ)์™€ ์˜์–ด ์ƒ˜ํ”Œ ๋ฌธ์„œ(4,503 ๋ฐ”์ดํŠธ, 693 ๋‹จ์–ด)๋ฅผ ํ† ํฐํ™”ํ•œ ๊ฒฐ๊ณผ์ด๋ฉฐ, ์ž์„ธํ•œ ๋ถ„์„ ๋ฐฉ๋ฒ•๊ณผ ์ „์ฒด ๊ฒฐ๊ณผ๋Š” [korean-tokenizer-analysis](https://github.com/bab2min/korean-tokenizer-analysis)์—์„œ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
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+ | Model | ๋ฐฉ์‹ | ์ „์ฒด vocab ์ˆ˜ | ํ•œ๊ธ€ ํฌํ•จ vocab ์ˆ˜ | ํ•œ๊ตญ์–ด ์–ด์ ˆ๋‹น ํ† ํฐ ์ˆ˜ | ํ•œ๊ตญ์–ด ํ† ํฐ๋‹น ๋ฐ”์ดํŠธ ์ˆ˜ | ์˜์–ด ๋‹จ์–ด๋‹น ํ† ํฐ ์ˆ˜ | ๋“œ๋ฌธ ์Œ์ ˆ 16๊ฐœ ์ค‘ UNK ์ˆ˜ |
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+ |---|---|---:|---:|---:|---:|---:|---:|
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+ | **Kiwi COCO-LM** | Byte-level BPE | 64,000 | 26,858 (41.97%) | 2.37 | 4.87 | 1.31 | **0** |
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+ | **KLUE RoBERTa** | WordPiece | 32,000 | 28,445 (88.89%) | 2.41 | 4.79 | 2.54 | 14 |
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+ | **KoELECTRA** | WordPiece | 35,000 | 29,021 (82.92%) | 2.44 | 4.73 | 2.48 | 10 |
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+ | **A.X-Encoder** | WordPiece | 50,000 | 24,084 (48.17%) | 2.54 | 4.54 | 1.89 | **0** |
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+ | **KF-DeBERTa** | WordPiece | 130,000 | 104,522 (80.40%) | **2.19** | **5.26** | 1.62 | 10 |
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+ | **ModernBERT** | Byte-level BPE | 50,368 | 25 (0.05%) | 7.12 | 1.62 | 1.30 | **0** |
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+ | **mmBERT** | BPE (byte fallback) | 256,000 | 2,295 (0.90%) | 3.30 | 3.50 | **1.24** | **0** |
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+ - ํ† ํฐ ์ˆ˜์—๋Š” [CLS], [SEP] ๋“ฑ ํŠน์ˆ˜ ํ† ํฐ์„ ํฌํ•จํ•˜์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค. ์–ด์ ˆ(๋‹จ์–ด)์€ ๊ณต๋ฐฑ ๋ฌธ์ž๋กœ ๋‚˜๋ˆˆ ๋‹จ์œ„์ž…๋‹ˆ๋‹ค.
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+ - **๋“œ๋ฌธ ์Œ์ ˆ 16๊ฐœ ์ค‘ UNK ์ˆ˜**: `๊ฑ`, `๊ฒผ`, `๊ธ‚`, `๊น„`, `๋‡„`, `๋ œ`, `๋ข”`, `๋ขจ`, `๋ถด`, `๋ปค`, `์Œ˜`, `์–ฌ`, `์นข`, `ํ…ผ`, `ํ‰œ`, `ํ™ฅ`์ฒ˜๋Ÿผ ์ž˜ ์“ฐ์ด์ง€ ์•Š๋Š” ํ•œ๊ธ€ ์Œ์ ˆ 16๊ฐœ๋ฅผ ๊ฐ๊ฐ ํ† ํฐํ™”ํ–ˆ์„ ๋•Œ `[UNK]`๋กœ ์ฒ˜๋ฆฌ๋˜์–ด ์›๋ž˜ ๊ธ€์ž๋ฅผ ์žƒ์–ด๋ฒ„๋ฆฐ ์Œ์ ˆ ์ˆ˜์ž…๋‹ˆ๋‹ค.
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+ Kiwi COCO-LM์˜ tokenizer๋Š” ํ•œ๊ตญ์–ด ์–ด์ ˆ๋‹น 2.37ํ† ํฐ์œผ๋กœ, ํ•œ๊ตญ์–ด ์ „์šฉ WordPiece tokenizer์ธ KLUE RoBERTa(2.41), KoELECTRA(2.44)์™€ ๋น„์Šทํ•˜๊ฑฐ๋‚˜ ์กฐ๊ธˆ ๋” ํšจ์œจ์ ์ž…๋‹ˆ๋‹ค. ๋™์‹œ์— ์˜์–ด๋Š” ๋‹จ์–ด๋‹น 1.31ํ† ํฐ์œผ๋กœ, ์›๋ณธ์ธ ModernBERT(1.30)์™€ ๊ฑฐ์˜ ๊ฐ™์€ ํšจ์œจ์„ ์œ ์ง€ํ•ฉ๋‹ˆ๋‹ค. ํ•œ๊ตญ์–ด ํšจ์œจ์ด ๊ฐ€์žฅ ์ข‹์€ KF-DeBERTa(2.19)๋Š” vocab ํฌ๊ธฐ๊ฐ€ Kiwi COCO-LM์˜ 2๋ฐฐ๊ฐ€ ๋„˜๊ณ  ์˜์–ด ํšจ์œจ์€ ๋–จ์–ด์ง‘๋‹ˆ๋‹ค(1.62). ๋˜ํ•œ Kiwi COCO-LM์˜ tokenizer๋Š” Byte-level BPE๋ฅผ ์‚ฌ์šฉํ•˜๊ธฐ ๋•Œ๋ฌธ์— WordPiece ๊ธฐ๋ฐ˜ tokenizer์™€ ๋‹ฌ๋ฆฌ ์–ด๋–ค ๊ธ€์ž๋„ `[UNK]`๋กœ ์ฒ˜๋ฆฌ๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
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+ ํ•œํŽธ ModernBERT๋Š” ํ•œ๊ธ€ vocab์ด 25๊ฐœ๋ฟ์ด๋ผ ํ•œ๊ตญ์–ด๋ฅผ ๋Œ€๋ถ€๋ถ„ UTF-8 ๋ฐ”์ดํŠธ ๋‹จ์œ„๋กœ ์ชผ๊ฐœ๋ฉฐ, ์–ด์ ˆ๋‹น 7.12ํ† ํฐ์œผ๋กœ Kiwi COCO-LM๋ณด๋‹ค ์•ฝ 3๋ฐฐ ๋งŽ์€ ํ† ํฐ์„ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค. ๊ฐ™์€ 8192 ํ† ํฐ ๊ธธ์ด ์•ˆ์— ๋‹ด์„ ์ˆ˜ ์žˆ๋Š” ํ•œ๊ตญ์–ด ํ…์ŠคํŠธ ๋ถ„๋Ÿ‰์ด ๊ทธ๋งŒํผ ์ ๋‹ค๋Š” ๋œป์ž…๋‹ˆ๋‹ค.
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  ## Limitations
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