Add processed Swedish newspapers 1818-1870 dataset and README

README.md

@@ -1,3 +1,45 @@
----
-license: cc-by-4.0
----
+---
+configs:
+  - config_name: default
+    data_files:
+      - split: train
+        path: swedish_newspaper_segments_hf.parquet
+dataset_info:
+  features:
+    - name: image
+      dtype: image
+    - name: text
+      dtype: string
+    - name: page_filename
+      dtype: string
+    - name: segment_number
+      dtype: int32
+---
+
+# Swedish Newspapers 1818-1870
+
+Processed segment-level OCR dataset built from **Swedish newspapers 1818-1870** with page segmentation from PDF and ground-truth text from manual transcription.
+
+## Data Citation Information
+
+Språkbanken Text (2020). *Swedish newspapers 1818-1870* (updated: 2020-05-26). [Data set]. Språkbanken Text. https://doi.org/10.23695/9bnq-xc71
+
+## Dataset Structure
+
+This parquet file contains the following columns:
+
+- `image` (`image`): cropped segment image bytes
+- `text` (`string`): transcription text for the segment
+- `page_filename` (`string`): source page ID (example: `bib11924799_18190814_145432_64_0002`)
+- `segment_number` (`int32`): segment number within the page
+
+## Basic Statistics
+
+Computed from `swedish_newspaper_segments_hf.parquet`:
+
+- Rows: **4,811**
+- Distinct pages: **100**
+- Segments per page: **min 1**, **median 33**, **max 235**
+- Segment number range: **1 to 245**
+- Average transcription length: **244.67 characters** (median: **127**)
+- Parquet size: **1,365,948,047 bytes** (~1.37 GB)

build_log.tsv

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swedish_newspaper_segments_hf.parquet

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+version https://git-lfs.github.com/spec/v1
+oid sha256:12eb25dce506a43fb8bd4ee38e7e7f3019d25a95265ccbe007f3587a454cce21
+size 1365948047