Datasets:
File size: 6,570 Bytes
e679c5b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | # v5 statistics
Counts are measured from `data/synth/v5/labels.jsonl` and cross-checked against the fixed validation manifest. Rows in the category and language tables sum to 3,527,958.
## Language IDs and split
There are 53 language IDs plus MRZ (`mrz`). The HF `language:` metadata uses the valid `sr` tag for the dataset's internal Latin-script Serbian code `sr-Latn`; the row table retains `sr-Latn`.
| Code | Language | Train | Validation | Total | Share |
|---|---|---:|---:|---:|---:|
| `af` | Afrikaans | 18,322 | 754 | 19,076 | 0.54% |
| `ar` | Arabic | 1,178,043 | 49,466 | 1,227,509 | 34.79% |
| `az` | Azerbaijani | 15,617 | 675 | 16,292 | 0.46% |
| `bs` | Bosnian | 14,409 | 648 | 15,057 | 0.43% |
| `ca` | Catalan | 19,299 | 814 | 20,113 | 0.57% |
| `ckb` | Central Kurdish (Sorani) | 131,872 | 5,410 | 137,282 | 3.89% |
| `cs` | Czech | 26,486 | 1,095 | 27,581 | 0.78% |
| `cy` | Welsh | 22,349 | 938 | 23,287 | 0.66% |
| `da` | Danish | 13,923 | 574 | 14,497 | 0.41% |
| `de` | German | 15,415 | 602 | 16,017 | 0.45% |
| `en` | English | 15,135 | 619 | 15,754 | 0.45% |
| `es` | Spanish | 15,161 | 658 | 15,819 | 0.45% |
| `et` | Estonian | 15,096 | 625 | 15,721 | 0.45% |
| `eu` | Basque | 13,847 | 555 | 14,402 | 0.41% |
| `fa` | Persian | 359,178 | 14,899 | 374,077 | 10.60% |
| `fi` | Finnish | 23,711 | 965 | 24,676 | 0.70% |
| `fil` | Filipino | 14,499 | 613 | 15,112 | 0.43% |
| `fr` | French | 15,356 | 655 | 16,011 | 0.45% |
| `ga` | Irish | 13,919 | 591 | 14,510 | 0.41% |
| `gl` | Galician | 13,818 | 578 | 14,396 | 0.41% |
| `he` | Hebrew | 294,949 | 12,295 | 307,244 | 8.71% |
| `hr` | Croatian | 13,665 | 569 | 14,234 | 0.40% |
| `hu` | Hungarian | 15,205 | 684 | 15,889 | 0.45% |
| `id` | Indonesian | 13,740 | 592 | 14,332 | 0.41% |
| `is` | Icelandic | 14,176 | 586 | 14,762 | 0.42% |
| `it` | Italian | 13,864 | 541 | 14,405 | 0.41% |
| `ku` | Kurdish (Kurmanji) | 14,015 | 629 | 14,644 | 0.42% |
| `la` | Latin | 14,098 | 572 | 14,670 | 0.42% |
| `lb` | Luxembourgish | 13,930 | 572 | 14,502 | 0.41% |
| `lt` | Lithuanian | 20,372 | 790 | 21,162 | 0.60% |
| `lv` | Latvian | 16,228 | 686 | 16,914 | 0.48% |
| `mi` | Māori | 13,804 | 564 | 14,368 | 0.41% |
| `mrz` | Machine-readable zone (not a language) | 163,212 | 6,823 | 170,035 | 4.82% |
| `ms` | Malay | 13,842 | 630 | 14,472 | 0.41% |
| `mt` | Maltese | 15,640 | 646 | 16,286 | 0.46% |
| `nl` | Dutch | 14,072 | 579 | 14,651 | 0.42% |
| `no` | Norwegian | 16,883 | 708 | 17,591 | 0.50% |
| `oc` | Occitan | 13,850 | 589 | 14,439 | 0.41% |
| `pl` | Polish | 14,000 | 535 | 14,535 | 0.41% |
| `ps` | Pashto | 163,268 | 6,680 | 169,948 | 4.82% |
| `pt` | Portuguese | 14,132 | 580 | 14,712 | 0.42% |
| `qu` | Quechua | 14,488 | 565 | 15,053 | 0.43% |
| `rm` | Romansh | 14,032 | 580 | 14,612 | 0.41% |
| `ro` | Romanian | 15,582 | 684 | 16,266 | 0.46% |
| `sk` | Slovak | 15,515 | 642 | 16,157 | 0.46% |
| `sl` | Slovenian | 13,825 | 563 | 14,388 | 0.41% |
| `sq` | Albanian | 13,908 | 593 | 14,501 | 0.41% |
| `sr-Latn` | Serbian (Latin script) | 14,008 | 622 | 14,630 | 0.41% |
| `sv` | Swedish | 13,975 | 576 | 14,551 | 0.41% |
| `sw` | Swahili | 13,880 | 559 | 14,439 | 0.41% |
| `tr` | Turkish | 14,037 | 577 | 14,614 | 0.41% |
| `ur` | Urdu | 328,668 | 13,630 | 342,298 | 9.70% |
| `uz` | Uzbek | 13,917 | 567 | 14,484 | 0.41% |
| `vi` | Vietnamese | 58,605 | 2,376 | 60,981 | 1.73% |
## Sample categories
| Category | Train | Validation | Total | Share |
|---|---:|---:|---:|---:|
| generic | 768,580 | 32,301 | 800,881 | 22.70% |
| name | 727,120 | 30,146 | 757,266 | 21.46% |
| place | 440,161 | 18,239 | 458,400 | 12.99% |
| date | 352,219 | 14,669 | 366,888 | 10.40% |
| number | 352,015 | 14,643 | 366,658 | 10.39% |
| short | 174,953 | 7,307 | 182,260 | 5.17% |
| mrz | 163,212 | 6,823 | 170,035 | 4.82% |
| authority | 146,126 | 6,080 | 152,206 | 4.31% |
| mixed | 145,804 | 6,115 | 151,919 | 4.31% |
| coverage | 116,650 | 4,795 | 121,445 | 3.44% |
## Logical text lengths
Unicode code points in `text`, spaces included.
| Length | Rows | Share |
|---|---:|---:|
| 1-10 | 1,562,820 | 44.30% |
| 11-20 | 1,147,722 | 32.53% |
| 21-30 | 357,228 | 10.13% |
| 31-40 | 157,867 | 4.47% |
| 41-50 | 141,211 | 4.00% |
| 51-64 | 161,110 | 4.57% |
`long_text`: 184,114 rows (5.22%). `hard_negative`: 60,618 rows (1.72%).
## Background groups
| Group | Rows | Share |
|---|---:|---:|
| flat | 459,050 | 13.01% |
| gradient variants | 687,899 | 19.50% |
| procedural guilloche | 458,446 | 12.99% |
| noise | 458,604 | 13.00% |
| CC0 pattern overlays | 688,400 | 19.51% |
| ambientCG material textures | 775,559 | 21.98% |
## Font families
| Family | Rows | Share |
|---|---:|---:|
| Lateef | 250,933 | 7.11% |
| Scheherazade New | 250,860 | 7.11% |
| Amiri | 250,431 | 7.10% |
| Harmattan | 250,394 | 7.10% |
| IBM Plex Sans Arabic | 245,316 | 6.95% |
| Almarai | 233,239 | 6.61% |
| Liberation Sans | 213,905 | 6.06% |
| Liberation Serif | 213,894 | 6.06% |
| OCR-B | 170,035 | 4.82% |
| Tajawal | 163,177 | 4.63% |
| DejaVu Sans | 127,561 | 3.62% |
| Noto Kufi Arabic | 99,998 | 2.83% |
| Markazi Text | 93,258 | 2.64% |
| Cairo | 93,238 | 2.64% |
| David Libre | 91,520 | 2.59% |
| Noto Sans Arabic | 87,316 | 2.47% |
| Noto Sans | 85,651 | 2.43% |
| Noto Naskh Arabic | 83,980 | 2.38% |
| Roboto | 83,309 | 2.36% |
| Readex Pro | 64,484 | 1.83% |
| Noto Serif Hebrew | 36,835 | 1.04% |
| Assistant | 36,541 | 1.04% |
| Heebo | 36,406 | 1.03% |
| Frank Ruhl Libre | 36,404 | 1.03% |
| Rubik | 36,373 | 1.03% |
| Patrick Hand | 35,812 | 1.02% |
| Vazirmatn | 31,992 | 0.91% |
| Kalam | 29,414 | 0.83% |
| Aref Ruqaa | 23,427 | 0.66% |
| Noto Sans Hebrew | 18,543 | 0.53% |
| Noto Nastaliq Urdu | 14,776 | 0.42% |
| Gveret Levin | 14,622 | 0.41% |
| Gulzar | 14,295 | 0.41% |
| Handlee | 10,019 | 0.28% |
## Degradation tiers
| Tier | Rows | Share |
|---|---:|---:|
| clean | 1,058,029 | 29.99% |
| heavy | 353,171 | 10.01% |
| light | 1,235,438 | 35.02% |
| medium | 881,320 | 24.98% |
The separate `contrast_clamped` flag occurs on 214 rows; it is not a fifth tier.
## Character coverage and split reuse
- Dictionary characters: 503 (spaces omitted from `dict.txt`).
- Least frequent code point: 800 total; 755 train; 24 validation.
- Every one of the 503 non-space dictionary characters is present in the labels.
- Character totals are in [`character-frequency.csv`](character-frequency.csv).
- 63,613/141,118 validation rows (45.08%) have text found in training. Unique strings: 40,406/117,675 (34.34%). This is expected; the split is not text-disjoint.
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