| --- |
| license: mit |
| pretty_name: Data Snapshot Metadata Gold |
| size_categories: |
| - n<1K |
| tags: |
| - metadata |
| - document-ai |
| - structured-data |
| configs: |
| - config_name: default |
| data_files: |
| - split: train |
| path: |
| - prwp/figure/*.json |
| - prwp/table/*.json |
| - refugee/figure/*.json |
| - refugee/table/*.json |
| - unhcr/figure/*.json |
| - unhcr/table/*.json |
| --- |
| |
| # Data Snapshot Metadata Gold |
|
|
| This dataset contains human-reviewed metadata for 102 data snapshots: figures |
| and tables extracted from institutional documents. Each JSON file describes one |
| snapshot image in the |
| [`ai4data/data-snapshot`](https://huggingface.co/datasets/ai4data/data-snapshot) |
| dataset. |
|
|
| This repository contains snapshot-level metadata only. It does not contain the |
| snapshot images or the separate source-document metadata published in |
| [`ai4data/data-snapshot`](https://huggingface.co/datasets/ai4data/data-snapshot). |
|
|
| ## Dataset structure |
|
|
| All records are currently assigned to the `train` split. |
|
|
| | Source collection | Figures | Tables | Total | |
| | --- | ---: | ---: | ---: | |
| | UNHCR | 17 | 17 | 34 | |
| | PRWP | 17 | 17 | 34 | |
| | Refugee | 17 | 17 | 34 | |
| | **Total** | **51** | **51** | **102** | |
|
|
| The repository is organized by source collection and snapshot type: |
|
|
| ```text |
| data_snapshot_metadata_gold/ |
| ├── prwp/{figure,table}/*.json |
| ├── refugee/{figure,table}/*.json |
| ├── unhcr/{figure,table}/*.json |
| ├── data_snapshot_metadata_schema_v1.4.schema.json |
| └── README.md |
| ``` |
|
|
| Metadata filenames follow this convention: |
|
|
| ```text |
| {source_document}_{figure|table}_{index}.json |
| ``` |
|
|
| The corresponding snapshot has the same basename and a `.png` extension in |
| [`ai4data/data-snapshot`](https://huggingface.co/datasets/ai4data/data-snapshot). Source-document names may contain underscores, so use |
| the full basename for matching rather than splitting on every underscore. |
|
|
| ## Loading the dataset |
|
|
| ```python |
| from datasets import load_dataset |
| |
| dataset = load_dataset( |
| "ai4data/data_snapshot_metadata_gold", |
| split="train", |
| ) |
| ``` |
|
|
| ## Metadata schema |
|
|
| The records conform to **Data Snapshot Metadata Schema v1.4**. The included |
| [`data_snapshot_metadata_schema_v1.4.schema.json`](data_snapshot_metadata_schema_v1.4.schema.json) |
| is a frozen, generated JSON Schema for this dataset release. |
|
|
| The canonical schema is implemented in Pydantic. This release is pinned to |
| commit |
| [`2b317a4d95b1c929b32c790b678646fdfca16eef`](https://github.com/ajdajd/data-snapshot/tree/2b317a4d95b1c929b32c790b678646fdfca16eef/src/data_snapshot/metadata_schema). |
|
|
| The JSON Schema uses JSON Schema Draft 2020-12. The complete field definitions, |
| constraints, descriptions, and examples are provided in the schema file. |
|
|
| Schema v1.4 is fixed for this gold release. Subsequent schema changes will use |
| a new version, beginning with v1.5, and will require a separate metadata review |
| and dataset update. |
|
|
| ## Dataset creation |
|
|
| The metadata was initially produced through model-assisted structured |
| extraction from data snapshot images. The generated records were subsequently |
| reviewed and corrected by a human annotator against the images. Source-document |
| metadata was not supplied to the extraction model. |
|
|
| "Gold" means human-reviewed. It does not imply that every field is objectively |
| unambiguous or independently verified against the complete source document. |
|
|
| All 102 records were validated against the canonical Schema v1.4 Pydantic |
| model before publication. |
|
|
| ## Intended uses |
|
|
| The dataset supports work on: |
|
|
| - structured metadata extraction from figures and tables; |
| - evaluation of schema-constrained extraction systems; |
| - metadata quality review and error analysis; and |
| - research on describing data-bearing content in institutional documents. |
|
|
| ## Limitations |
|
|
| - The dataset contains 102 selected snapshots and is not representative of all |
| institutional documents or visualization types. |
| - Metadata is based on evidence visible in each snapshot image. Relevant |
| context elsewhere in the source document may not be represented. |
| - Some fields require interpretation and may admit more than one reasonable |
| annotation. |
| - The current release contains only a `train` split. Train/test assignments |
| will be defined in a later dataset release. |
|
|
| ## License |
|
|
| The metadata in this repository is released under the MIT License. Snapshot |
| images are not included here and remain subject to the licensing and |
| attribution terms of their source dataset and original publishers. |
|
|
| ## Paper and citation |
|
|
| [TBD] |
|
|
