Elamur Groupantsgparse-data-lexical
The groupant beside gparse/src/data.rs in the Mova repository: what the code computes, what it never does, how to go back from its outputs, its invariants, cost and checks.
Facts
Implementation material. A Mova code model describes this code at one source revision: partial models, finite checks and their stated scope. It is not a reviewed general exposition, and its labels are shown as written, never raised.
Components
| component | label | where |
|---|---|---|
| approximant | partial | approximant |
| ast | partial | ../syntax.json |
| cost | symbolic source derived | invariant |
| descriptant | present | descriptant |
| invariant | partial | invariant |
| tests | unexecuted source derived scope | tests |
Obernants
The typed relations around the forward model: the behaviour complement (what the code never does), the reverse reconstruction (every input compatible with an output) and specialised views.
| id | type | label | where |
|---|---|---|---|
behavior_complement | behavior_complement | partial source derived model | behavior_complement |
reverse_reconstruction | reverse_reconstruction | partial source derived model | reverse_reconstruction |
precedence | precedence | partial source derived model | precedence |
tie_policy | tie_policy | partial source derived model | tie_policy |
lemma_retention | lemma_retention | partial source derived model | lemma_retention |
relation_fallback | relation_fallback | partial source derived model | relation_fallback |
Model text
descriptant
Source-bound description
Lex counts (form,upos,xpos)->(feats,lemma), tries EModE before counts and preserves informative old verb lemma when morphology repeats form.
Epoch 2026-10-31
Prospective model was recorded before edits. Added tests use bounded synthetic fixtures; production algorithms unchanged. Coverage is partial, not proof. No trained corpus, live teacher or throughput experiment was executed.
approximant
Forward approximant
Lex counts (form,upos,xpos)->(feats,lemma), tries EModE before counts and preserves informative old verb lemma when morphology repeats form.
Domain: valid source-specific dimensions and resources stated in invariant; no automatic production substitution. Numerical observations are finite checks, not an end-to-end relative bound. Executable Rust surrogate: unsupported gap; existing exact tests are not surrogates. Future metric-specific caps may be 1/2/5/10%, never above 10%.
invariant
Invariant and cost
Equal count keys choose smaller; unknown relations reduce base or dep unless vocabulary empty.
Cost
O(tokens*log distinct keys) learning and map lookup plus delegated morphology/table work.
Allocation, finite arithmetic, platform dimensions and external failures are not universally certified.
models
Typed model catalog
behavior_complement
Known table result cannot be superseded by corpus frequencies.
reverse_reconstruction
Chosen lemma/features admit all count maps with same winning key, and all corpora yielding those maps.
precedence
fill chooses EModE table, form+tag top, then tag top/morphology.
tie_policy
Equal frequency chooses lexicographically smaller key through reversed key comparator.
lemma_retention
Verb/AUX retains informative old lemma when new lowercase lemma repeats lowercase form.
relation_fallback
Empty relation set accepts r; otherwise exact r, known colon base, then dep.
tests
Checks and limits
This exact fragment remains source-derived and unexecuted in this epoch. Parent/sibling selected evidence, not runtime coverage of this fragment: data::tests::features_line_up_with_words; data::cost_tests::cost_counts_real_batch_shapes_and_filters_skipped_sentences; data::wave30::projection_roles_and_zero_budget
Selected commands run twice debug and twice release; exact receipts and source-to-test mapping retained in wave30 gparse external run directory. Tests do not certify allocation failure, all NaN/overflow inputs, trained-model accuracy or corpus timing. Compiled mutants cover selected boundaries; per-source coverage is recorded in the external map, not presumed.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/gparse/src/data.rs.groupant/lexical.groupant/