---
title: "kaggle-text-command-group-prediction — Mova code model"
description: "Mova code model of tools/kaggle/src/main.rs: components with their labels, obernants and the model text."
url: "https://groupants.elamur.ai/free/en/mova/tools/kaggle/src/main.rs.groupant/group-prediction.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**

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# kaggle-text-command-group-prediction

The groupant beside tools/kaggle/src/main.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/kaggle/src/main.rs`](https://github.com/ElamurAI/mova-free/blob/main/tools/kaggle/src/main.rs)
- **source SHA-256:** `c6ae7a7a7d1de14c…`
- **covers:** Build two string-key buckets per person, dedup unequal-id neighbor entries; known id map from training; count known female/Master mates' Some(true)/Some(false). Female death override then Master survival override then gender fallback. (bytes 7243–8930)
- **part of:** [kaggle-text-command](https://md.groupants.elamur.ai/free/en/mova/tools/kaggle/src/main.rs.groupant/)
- **repository folder:** [`tools/kaggle/src/main.rs.groupant/group-prediction.groupant`](https://github.com/ElamurAI/mova-free/tree/main/tools/kaggle/src/main.rs.groupant/group-prediction.groupant)
- **repository commit:** `855da7bd4a7b`

> **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](#approximant) |
| **ast** | partial | `../syntax.json` |
| **cost** | symbolic source derived | [invariant-and-cost](#invariant-and-cost) |
| **descriptant** | present | [descriptant](#descriptant) |
| **invariant** | partial | [invariant-and-cost](#invariant-and-cost) |
| **tests** | executed bounded checks | [tests](#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 |
|---|---|---|---|
| `kaggle-text-command-group-prediction-behavior_complement` | behavior_complement | partial source derived model | [behavior_complement](#behavior-complement) |
| `kaggle-text-command-group-prediction-reverse_reconstruction` | reverse_reconstruction | partial source derived model | [reverse_reconstruction](#reverse-reconstruction) |
| `kaggle-text-command-group-prediction-key_union` | key_union | partial source derived model | [key_union](#key-union) |
| `kaggle-text-command-group-prediction-known_projection` | known_projection | partial source derived model | [known_projection](#known-projection) |
| `kaggle-text-command-group-prediction-override_precedence` | override_precedence | partial source derived model | [override_precedence](#override-precedence) |
| `kaggle-text-command-group-prediction-missing_label_neutrality` | missing_label_neutrality | partial source derived model | [missing_label_neutrality](#missing-label-neutrality) |

## Model text


### descriptant

#### kaggle-text-command-group-prediction

##### Epoch 2026-10-31

Full source read preceded changes. Prospective model predicted branch/order, resource and information-loss behavior. Tests exercise actual helpers on bounded synthetic inputs; command workflows remain unexecuted. Production source prefix is preserved; only inline tests added.

Build two string-key buckets per person, dedup unequal-id neighbor entries; known id map from training; count known female/Master mates' Some(true)/Some(false). Female death override then Master survival override then gender fallback.

Executable percentage approximation is unsupported: categorical parsing/effects have no useful certified metric here. Partial syntax excludes macro expansion and name resolution.

### approximant

#### Forward relation

Build two string-key buckets per person, dedup unequal-id neighbor entries; known id map from training; count known female/Master mates' Some(true)/Some(false). Female death override then Master survival override then gender fallback.

##### Domain

Bounded N; unique ids for simple graph semantics; fare string rounding and exact ticket equality.

### models

## Typed source models

All models are partial source-derived relations at this manifest snapshot. Scope is one call/trace under the stated domain; no universal semantic proof.

### behavior_complement

No edge may arise solely through a third passenger; all unknown or conflicting mates cannot trigger either unanimous override.

Domain: Bounded N; unique ids for simple graph semantics; fare string rounding and exact ticket equality. Observation: No self-id edges; duplicate records can overwrite known id. Labels None count neither lived nor died; direct mates only. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.

### reverse_reconstruction

Neighbor relation admits alternative ticket and surname/fare bucket decompositions; WCG boolean admits many compatible labels, not unique train.

Domain: Bounded N; unique ids for simple graph semantics; fare string rounding and exact ticket equality. Observation: No self-id edges; duplicate records can overwrite known id. Labels None count neither lived nor died; direct mates only. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.

### key_union

G(a)=union of same n:surname:fare and t:ticket ids minus a; insertion duplicate suppression preserves one neighbor id.

Domain: Bounded N; unique ids for simple graph semantics; fare string rounding and exact ticket equality. Observation: No self-id edges; duplicate records can overwrite known id. Labels None count neither lived nor died; direct mates only. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.

### known_projection

Known is train collected by id, later duplicate wins; mates absent from Known are discarded before woman/child filter.

Domain: Bounded N; unique ids for simple graph semantics; fare string rounding and exact ticket equality. Observation: No self-id edges; duplicate records can overwrite known id. Labels None count neither lived nor died; direct mates only. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.

### override_precedence

Female and Master simultaneously: all-dead branch wins before survival branch; mixed lived/dead takes gender fallback.

Domain: Bounded N; unique ids for simple graph semantics; fare string rounding and exact ticket equality. Observation: No self-id edges; duplicate records can overwrite known id. Labels None count neither lived nor died; direct mates only. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.

### missing_label_neutrality

Some(true) increments lived; Some(false) died; None neither, so 'all' wording means observed labeled mates, not every mate.

Domain: Bounded N; unique ids for simple graph semantics; fare string rounding and exact ticket equality. Observation: No self-id edges; duplicate records can overwrite known id. Labels None count neither lived nor died; direct mates only. Assumptions: bounded resources and source branch semantics. Oracle: selected actual-helper tests in tests.md constrain only their finite fixtures; remaining branches are source-derived.


### tests

#### Evidence

Selected exact tests: ["wave33::features_groups_and_empty_learning"].

Each runs twice in debug and twice in release with normalized named outcomes compared. Compiled production-boundary mutants are recorded in the external wave33 text receipts with original/restored hashes and positive reruns. Existing negative assertions are separate from compiled mutants. No CLI, download, teacher, corpus or model execution. For this fragment, source-derived paths not reached by these tests remain unverified.

### invariant-and-cost

#### Invariant and cost

##### Invariant

No self-id edges; duplicate records can overwrite known id. Labels None count neither lived nor died; direct mates only.

##### Cost

Bucket materialization O(N log N); dense bucket dedup O(N^3) worst case, neighbor memory O(N^2); each prediction rebuilds.

Arithmetic and allocation premises are conditional. No timing or percentage surrogate claimed.