---
title: "study-feedback-priority — Mova code model"
description: "Mova code model of tools/enrich/src/study.rs: components with their labels, obernants and the model text."
url: "https://groupants.elamur.ai/free/en/mova/tools/enrich/src/study.rs.groupant/feedback.groupant/priority.groupant/"
---
Elamur: [Mova](https://md.mova.elamur.ai/free/en/) · [Dictionary](https://md.dictionary.elamur.ai/free/en/) · [Research](https://md.research.elamur.ai/free/en/) · **Groupants**

This page as HTML: <https://groupants.elamur.ai/free/en/mova/tools/enrich/src/study.rs.groupant/feedback.groupant/priority.groupant/>

# study-feedback-priority

The groupant beside tools/enrich/src/study.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

- **kind:** groupant_fragment
- **status:** partial source bound model
- **source:** [`tools/enrich/src/study.rs`](https://github.com/ElamurAI/mova-free/blob/main/tools/enrich/src/study.rs)
- **source SHA-256:** `8bdc286a3d410509…`
- **covers:** Weak feedback incidence (bytes 3628–4974)
- **part of:** [study-feedback](https://md.groupants.elamur.ai/free/en/mova/tools/enrich/src/study.rs.groupant/feedback.groupant/)
- **repository folder:** [`tools/enrich/src/study.rs.groupant/feedback.groupant/priority.groupant`](https://github.com/ElamurAI/mova-free/tree/main/tools/enrich/src/study.rs.groupant/feedback.groupant/priority.groupant)
- **repository commit:** `48f2e6f74146`

> **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 | [forward](#forward) |
| **ast** | not materialized |  |
| **descriptant** | present | [epoch-memory](#epoch-memory) |
| **invariant** | partial | [invariant](#invariant) |
| **tests** | partial bounded checks | [checks](#checks) |

## 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 |
|---|---|---|---|
| `study-feedback-priority-forward` | forward_relation | partial source model | [forward](#forward) |
| `study-feedback-priority-behavior-complement` | behavior_complement | partial source model | [behavior-complement](#behavior-complement) |
| `study-feedback-priority-reverse-reconstruction` | reverse_reconstruction | partial source model | [reverse-reconstruction](#reverse-reconstruction) |
| `study-feedback-priority-coupling` | interaction_relation | partial source model | [coupling](#coupling) |

## Model text


Partial source model, 2026-10-29. The raw Rust file remains authoritative. AST is not materialized; byte ranges are snapshot anchors, not semantic proofs.

### forward

Define W_i = !(correct_i AND support_i), I_iw = source_i in sources_w OR headword_w in tokens(question_i), and H_w=sum_i W_i I_iw. tokens keeps alphabetic pieces whose UTF-8 byte length exceeds three, then lowercases. Sort rows by (-H_w, known_w, headword_w); preserve source vectors.

### behavior-complement

A row whose hit count exceeds the number of weak feedback items, double-counts source and token membership, or depends on understood lies outside this relation. Unknown dictionary words at equal hits precede known words.

### reverse-reconstruction

For observed hit vector H and fixed incidence matrix I, compatible weak masks are all binary W with I-transpose W=H. Every zero W position requires correct=support=true; every one allows the other three flag pairs. Projection commonly has multiple antecedents.

### coupling

The bounded independent incidence oracle enumerates all 64 correctness/support assignments for three feedback items and both uniform understood values: 128 executions. Short fox is excluded from token-only matching but admitted by its source; repeated source IDs and overlapping source/token matches contribute at most once per item.

### composition

For n words and m feedback items, current code repeatedly tokenizes questions per membership check: cost includes O(n*m*question_bytes), source-vector lookup and O(n log n) sorting. Pre-indexing is a prospective optimization, not implemented.

### invariant

Forward and reverse observations refer to the same fixed source snapshot and dependency behavior. Ordering is deterministic for fixed inputs; filesystem/environment stability is assumed where relevant. The complement is an inner bound relative to this fragment's input/output universe.

### checks

See the file-level tests.md for executed bounded checks and limits. The first three model relations are specifications; tests sample correspondence rather than proving all inputs. No expanded semantic AST or executable general inverse solver exists.

### epoch-memory

2026-10-29: retained the file-level 23 models and added this finer scope. An initial incidence oracle incorrectly treated three-byte fox as a token; the existing tokenizer rejects it. Corrected the independent membership matrix rather than changing production behavior. This is a model correction, not an algorithm defect.