title: mediawiki/page/prediction_classification_change
description: >
  Represents a classification model output (topic, revert, quality, etc.).
  - topic model: https://meta.wikimedia.org/wiki/Machine_learning_models/Production/Language_agnostic_link-based_article_topic_model_card
  - quality model: https://meta.wikimedia.org/wiki/Machine_learning_models/Proposed/Language-agnostic_Wikipedia_article_quality_model_card

$id: /mediawiki/page/prediction_classification_change/1.1.0
$schema: 'https://json-schema.org/draft-07/schema#'
type: object
additionalProperties: false
allOf:
  - $ref: /fragment/common/2.0.0#
  - $ref: /fragment/mediawiki/state/change/page/1.1.0

properties:
  predicted_classification:
    type: object
    properties:
      model_name:
        description: The name of the classsification model used.
        type: string
      model_version:
        description: The version of the classsification model used.
        type: string
      predictions:
        description: A list of predictions made by this model.
        type: array
        items:
          type: string
      probabilities:
        description: >
          A list of probabilities made by this model.
          Each element is a key/value with class name and associated [0-1] probability.
        type: object
        additionalProperties:
          type: number
    required:
      - model_name
      - model_version
      - predictions
      - probabilities

examples:
  - $schema: { $ref: '#/$id' }
    dt: '2021-01-01T00:00:00.0Z'
    meta:
      domain: examplewiki
      dt: '2021-01-01T00:00:00.0Z'
      stream: mediawiki.page_change
    changelog_kind: update
    page_change_kind: edit
    wiki_id: example
    comment: changed a thing
    page:
      namespace_id: 1
      page_id: 1
      page_title: example
      revision_count: 1
      is_redirect: true
      redirect_page_link:
        page_id: 2
        is_redirect: false
        page_title: Redirect_Target
        namespace_id: 1
    performer:
      user_id: 123
      user_text: yoohoo
    revision:
      rev_dt: '2021-01-01T00:00:00.0Z'
      rev_id: 2
      rev_parent_id: 1
      rev_sha1: 16619839a55cfb5c61bcf520bf9734e0c67f98cc
      rev_size: 100
      comment: changed a thing
      editor:
        user_id: 123
        user_text: example
      is_minor_edit: false
      is_comment_visible: true
      is_content_visible: true
      is_editor_visible: true
    predicted_classification:
      model_name: example_model
      model_version: 1.0.1
      predictions:
      - yes
      - mostly
      probabilities:
        yes: 0.99
        mostly: 0.9
        hardly: 0.01