Datasets:

Robin186
/

ISL

pretty_name: Robin186 Unified Indian Sign Language Vocabulary
license: other
language:
  - en
tags:
  - indian-sign-language
  - accessibility
  - vocabulary
configs:
  - config_name: default
    data_files:
      - split: train
        path: data/isl.jsonl

Robin186/ISL

Public, provenance-first vocabulary index for Indian Sign Language. The 2026-07-17 snapshot combines the public ISLRTC A-Z dictionary index with a small local INCLUDE metadata snapshot, a validated motion catalog, and narrowly filtered SignSaarthi lexicon annotations. It does not download or contain dictionary videos, raw video corpora, audio, or signer media.

Coverage

Measure	Count
Dataset records	12434
Official ISLRTC entries preserved	15560
Canonical official terms	12357
Official duplicate-term groups consolidated	2979
INCLUDE vocabulary labels	263
Records with INCLUDE motion metadata	262
INCLUDE labels quarantined from motion playback	1
Official terms with INCLUDE motion metadata	186
Locally enriched admitted records	12434

Repeated official terms are one dataset row with every distinct official entry ID and detail URL retained under official.entries; they are not silently discarded.

Record fields

id, term, normalizedTerm, language: stable vocabulary identity.
datasetIds, sourceUrls, official, include: primary provenance, official variants, source-split presence, and honest motion availability.
motion: compact INCLUDE catalog metadata. The source catalog contains no landmark frame arrays, so framePayloadIncluded is always false in this bundle.
lexicon: safe local annotations only after the term independently matches ISLRTC or INCLUDE. Aliases, token weights, source fields, and timestamps are not copied.
license, review: per-row rights and expert-review status without certification claims.

Licensing and review

This dataset card uses license: other because it combines source-specific terms. The official ISLRTC FAQ permits dictionary use for research, teaching, and technology only when the data are not resold or used for profiteering and ISLRTC is properly acknowledged. INCLUDE is tracked as CC-BY-4.0 based on its source metadata. This public bundle contains metadata and source links only; it does not grant commercial rights or permission to redistribute source media or derived landmark payloads.

The upstream INCLUDE metadata contains exact media-path overlap between its published splits, so those split names are retained for provenance only and are not represented as a leakage-safe evaluation benchmark. A label with no source-consistent training path is kept as vocabulary but quarantined from motion playback.

An official dictionary listing establishes vocabulary provenance; it does not prove that this merge or an INCLUDE motion clip received independent ISL expert review. Motion review status is copied literally from the catalog and is currently represented per record.

iSign exclusion

No iSign-only record or gated CSV content is included. The blended local lexicon may enrich a term only after that term is independently admitted by ISLRTC or an INCLUDE motion. Unmatched local terms are counted only in metadata.json; their text is not written. The validator rejects iSign dataset provenance and gated local source paths.

Files

data/isl.jsonl: deterministic records sorted by normalized term.
metadata.json: input/page hashes, coverage, exclusions, licenses, and validation.
README.md: this Hugging Face dataset card.

The bundle is intended for vocabulary lookup, coverage analysis, and motion catalog joins. It is not a complete motion corpus, translation benchmark, or substitute for review by qualified ISL users and experts.