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README.md

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+---
+license: cc-by-4.0
+language:
+  - kab
+language_bcp47:
+  - kab-Latn
+size_categories:
+  - 100K<n<1M
+task_categories:
+  - text2text-generation
+  - token-classification
+task_ids:
+  - morphological-inflection
+  - lemmatization
+pretty_name: KabInflect — Kabyle morphological inflection and analysis benchmark
+tags:
+  - kabyle
+  - taqbaylit
+  - berber
+  - tamazight
+  - low-resource
+  - morphology
+  - inflection
+  - lemmatization
+configs:
+  - config_name: inflection
+    data_files:
+      - split: train
+        path: inflection/train.parquet
+      - split: dev
+        path: inflection/dev.parquet
+      - split: test
+        path: inflection/test.parquet
+  - config_name: analysis
+    data_files:
+      - split: train
+        path: analysis/train.parquet
+      - split: dev
+        path: analysis/dev.parquet
+      - split: test
+        path: analysis/test.parquet
+  - config_name: paradigms
+    data_files:
+      - split: train
+        path: paradigms/train.parquet
+---
+
+# KabInflect
+
+A morphological inflection and analysis benchmark for Kabyle (Taqbaylit, `kab`, Latin script), from the
+[AƔBALU](https://huggingface.co/agbalu) project.
+
+**344,745 inflected verb form entries** across **13,226 unique verb lemmas**, partitioned into
+paradigmatically sealed splits (0 paradigm leakage), plus **6,198 complete verb conjugation tables**.
+
+```python
+from datasets import load_dataset
+
+inflect = load_dataset("agbalu/KabInflect", "inflection")
+analysis = load_dataset("agbalu/KabInflect", "analysis")
+paradigms = load_dataset("agbalu/KabInflect", "paradigms", split="train")
+```
+
+## `inflection`
+
+Morphological Inflection (Seq2Seq Morphological Generation): `(lemma, feats)` → `form`.
+
+344,745 total entries across 13,226 verb lemmas.
+
+| split | lemmas | inflected forms |
+|---|---|---|
+| `train` | 10,580 | 276,717 |
+| `dev` | 1,323 | 34,109 |
+| `test` | 1,323 | 33,919 |
+| **total** | **13,226** | **344,745** |
+
+### Schema
+
+| field | type | description |
+|---|---|---|
+| `id` | string | `kab_inflect_{split}_{idx}` |
+| `lemma` | string | Base verb infinitif (canonical) |
+| `feats` | string | Universal Dependencies (UD) FEATS (e.g. `Aspect=Perf\|Gender=Masc\|Number=Sing\|Person=3`) |
+| `tense_raw` | string | Legacy source tense descriptor (e.g. `prétérit`, `aoriste intensif`) |
+| `person_raw` | string | Legacy source person descriptor (e.g. `3s_m`, `1p`) |
+| `form` | string | Inflected surface form in canonical Kabyle orthography |
+
+## `analysis`
+
+Morphological Analysis and Lemmatisation: `form` → `(lemma, feats)`.
+
+Same 344,745 entries, indexed by inflected surface form.
+
+## `paradigms`
+
+6,198 full verb paradigms with French translations, irregularity indicators (`is_irregular`, `is_derived`), pattern verbs, and principal aspect stems (`imperative`, `aorist`, `preterite`, `negative_preterite`, `aorist_participle`, `preterite_participle`, `negative_preterite_participle`, `intensive_forms`).
+
+## Paradigmatically Sealed Partitioning (Zero Paradigm Leakage)
+
+**Upstream datasets randomly split individual inflected forms across train and test.** That design flaw causes extreme data leakage: forms of the exact same verb (e.g. `awḍeɣ`, `tewḍeḍ`, `yeweḍ`) appear in both splits, so a test score measures simple paradigm memorisation rather than linguistic learning.
+
+`agbalu/KabInflect` fixes this:
+- Entries are grouped strictly by **verb lemma** (`infinitif`).
+- Splitting is performed at the **lemma level** with seed 42.
+- **0% lemma overlap**: all 1,323 verbs in `test` (33,919 forms) are completely unseen during training. A system must learn the underlying rules of Kabyle morphology to succeed.
+
+## Orthography
+
+All Kabyle text is normalised under normaliser `1.3.0+rules1.0.0` (81 rules), preserving sub-dot emphatic distinctions (`ɣ ḍ ḥ ṭ ṛ ẓ ṣ`). The source text carries 0.00% homoglyph error.
+
+## Evaluation Protocol & Baseline Floor
+
+The benchmark evaluates morphological generation (`inflection`) and parsing (`analysis`) on **1,323 held-out test verb lemmas (33,919 unseen test forms)**.
+
+| Task | Baseline / System | Metric | Score | Notes |
+|---|---|---|---|---|
+| Inflection | Identity Lemma Floor | Exact Match (EM) | 16.82% | Naive floor predicting `form = lemma` |
+| Inflection | Identity Lemma Floor | Character Error Rate (CER) | 34.21% | Levenshtein edit distance ratio |
+| Analysis | Unsupervised Lexicon Lookup | EM Accuracy | 78.41% | Exact match via `agbalu/KabLex` lookup |
+
+Because splits are sealed by verb lemma (0% paradigm overlap), models must learn generalisable Kabyle morphological rules to surpass the baseline floor on unseen paradigms.
+
+## Known Limits
+
+- **Verb-focused.** Covers Kabyle verbal morphology (the largest morphological paradigm family in the language); nominal annexed-state paradigms are covered separately in `agbalu/KabLex`.
+- **Gloss language.** Paradigm translations are French, reflecting the source dictionary.
+- **Standard orthography.** Uses standard Kabyle Latin script; does not cover dialectal spellings or Tifinagh (see `agbalu/KabTifinagh` for script conversion).
+
+## Citation
+
+```bibtex
+@misc{agbalu_kabinflect,
+  title  = {KabInflect: a Kabyle morphological inflection and analysis benchmark},
+  author = {AƔBALU},
+  year   = {2026},
+  url    = {https://huggingface.co/datasets/agbalu/KabInflect}
+}
+```
+
+Please also cite `boffire/kabyle-verbs` for the upstream data collection.
+
+## Licence
+
+**CC-BY-4.0.** Free to share, modify, and build upon with proper attribution.

analysis/dev.parquet

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analysis/train.parquet

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dataset_info.json

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+{
+  "dataset_name": "agbalu/KabInflect",
+  "description": "Standardised Kabyle Morphological Inflection, Lemmatisation, and Conjugation Benchmark",
+  "language": "kab_Latn",
+  "license": "CC-BY-4.0",
+  "total_inflected_forms": 344745,
+  "unique_lemmas": 13226,
+  "unique_paradigms": 6198,
+  "splits": {
+    "train": {
+      "lemmas": 10580,
+      "forms": 276717
+    },
+    "dev": {
+      "lemmas": 1323,
+      "forms": 34109
+    },
+    "test": {
+      "lemmas": 1323,
+      "forms": 33919
+    }
+  },
+  "source": "hf.boffire.kabyle-verbs (CC-BY-4.0), normalized under A\u0194BALU standard 1.3.0+rules1.0.0"
+}

inflection/dev.parquet

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