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glam/schemas/20251121/linkml/modules/classes/VideoTranscript.yaml
kempersc 90842851c2 Add slot definitions for 'updated_at' and 'written_in' with multilingual support and ontology alignment 
- Created 'updated_at.yaml' to record the last modified date and time of entities, including multilingual descriptions and structured aliases.
- Created 'written_in.yaml' to specify the language in which content is composed, covering both natural and programming languages, with detailed comments and close ontology mappings.
2026-02-07 11:22:05 +01:00

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id: https://nde.nl/ontology/hc/class/VideoTranscript
name: video_transcript_class
title: Video Transcript Class
imports:
- linkml:types
- ../enums/TranscriptFormatEnum
- ../slots/20260202_matang/contain
- ../slots/20260202_matang/has_format
- ../slots/20260202_matang/has_score
- ../slots/20260202_matang/has_segment
- ../slots/20260202_matang/new/includes_speaker
- ../slots/20260202_matang/new/includes_timestamp
- ../slots/20260202_matang/new/paragraph_count
- ../slots/20260202_matang/new/primary_speaker
- ../slots/20260202_matang/new/sentence_count
- ../slots/20260202_matang/new/source_language_auto_detected
- ../slots/20260202_matang/new/speaker_count
prefixes:
linkml: https://w3id.org/linkml/
hc: https://nde.nl/ontology/hc/
schema: http://schema.org/
dcterms: http://purl.org/dc/terms/
prov: http://www.w3.org/ns/prov#
crm: http://www.cidoc-crm.org/cidoc-crm/
skos: http://www.w3.org/2004/02/skos/core#
default_prefix: hc
classes:
VideoTranscript:
is_a: VideoTextContent
class_uri: crm:E33_Linguistic_Object
abstract: false
description: "Full text transcription of video audio content.\n\n**DEFINITION**:\n\nA VideoTranscript is the complete textual representation of all spoken\ncontent in a video. It extends VideoTextContent with transcript-specific\nproperties and inherits all provenance tracking capabilities.\n\n**RELATIONSHIP TO VideoSubtitle**:\n\nVideoSubtitle is a subclass of VideoTranscript because:\n1. A subtitle file contains everything a transcript needs PLUS time codes\n2. You can derive a plain transcript from subtitles by stripping times\n3. This inheritance allows polymorphic handling of text content\n\n```\nVideoTranscript VideoSubtitle (is_a VideoTranscript)\n\u251C\u2500\u2500 full_text \u251C\u2500\u2500 full_text (inherited)\n\u251C\u2500\u2500 segments[] \u251C\u2500\u2500 segments[] (required, with times)\n\u2514\u2500\u2500 (optional times) \u2514\u2500\u2500 subtitle_format (SRT, VTT, etc.)\n```\n\n**SCHEMA.ORG ALIGNMENT**:\n\nMaps to `schema:transcript` property:\n\
> \"If this MediaObject is an AudioObject or VideoObject, \n> the transcript of that object.\"\n\n**CIDOC-CRM E33_Linguistic_Object**:\n\nE33 is the class comprising:\n> \"identifiable expressions in natural language or code\"\n\nA transcript is a linguistic object derived from the audio track of\na video (which is itself an E73_Information_Object).\n\n**TRANSCRIPT FORMATS**:\n\n| Format | Description | Use Case |\n|--------|-------------|----------|\n| PLAIN_TEXT | Continuous text, no structure | Simple search indexing |\n| PARAGRAPHED | Text broken into paragraphs | Human reading |\n| STRUCTURED | Segments with speaker labels | Research, analysis |\n| TIMESTAMPED | Segments with time markers | Navigation, subtitling |\n\n**GENERATION METHODS** (inherited from VideoTextContent):\n\n| Method | Typical Use | Quality |\n|--------|-------------|---------|\n| ASR_AUTOMATIC | Whisper, Google STT | 0.80-0.95 |\n| MANUAL_TRANSCRIPTION | Human transcriber | 0.98-1.0 |\n| PLATFORM_PROVIDED\
\ | YouTube auto-captions | 0.75-0.90 |\n| HYBRID | ASR + human correction | 0.95-1.0 |\n\n**HERITAGE INSTITUTION CONTEXT**:\n\nTranscripts are critical for heritage video collections:\n\n1. **Discovery**: Full-text search over video content\n2. **Accessibility**: Deaf/HoH access to spoken content\n3. **Preservation**: Text outlasts video format obsolescence\n4. **Research**: Corpus analysis, keyword extraction\n5. **Translation**: Base for multilingual access\n6. **SEO**: Search engine indexing of video content\n\n**STRUCTURED SEGMENTS**:\n\nWhen `segments` is populated, the transcript has structural breakdown:\n\n```yaml\nsegments:\n - segment_index: 0\n start_seconds: 0.0\n end_seconds: 5.5\n segment_text: \"Welcome to the Rijksmuseum.\"\n speaker_label: \"Narrator\"\n confidence: 0.94\n - segment_index: 1\n start_seconds: 5.5\n end_seconds: 12.3\n segment_text: \"Today we'll explore the Night Watch gallery.\"\n speaker_label: \"Narrator\"\n confidence:\
\ 0.91\n```\n\n**PROVENANCE** (inherited from VideoTextContent):\n\nAll transcripts include:\n- `source_video`: Which video was transcribed\n- `generated_by`: Tool/person that created transcript\n- `generation_method`: ASR_AUTOMATIC, MANUAL_TRANSCRIPTION, etc.\n- `generation_timestamp`: When transcript was created\n- `overall_confidence`: Aggregate quality score\n- `is_verified`: Whether human-reviewed\n"
exact_mappings:
- crm:E33_Linguistic_Object
close_mappings:
- schema:transcript
related_mappings:
- dcterms:Text
slots:
- contain
- includes_speaker
- includes_timestamp
- paragraph_count
- primary_speaker
- has_segment
- sentence_count
- source_language_auto_detected
- speaker_count
- has_score
- has_format
slot_usage:
contain:
# range: string
required: true
examples:
- value: 'Welcome to the Rijksmuseum. Today we''ll explore the masterpieces
of Dutch Golden Age painting. Our first stop is the Night Watch
by Rembrandt van Rijn, painted in 1642.
'
- value: '[Narrator] Welcome to the Rijksmuseum.
[Narrator] Today we''ll explore the masterpieces of Dutch Golden Age painting.
[Curator] Our first stop is the Night Watch by Rembrandt van Rijn.
'
has_format:
range: TranscriptFormatEnum
required: false
examples:
- value: STRUCTURED
includes_timestamp:
range: boolean
required: false
ifabsent: 'false'
examples:
- value: true
includes_speaker:
range: boolean
required: false
ifabsent: 'false'
examples:
- value: true
has_segment:
range: VideoTimeSegment
required: false
multivalued: true
inlined: true
inlined_as_list: true
examples:
- value: "- segment_index: 0\n start_seconds: 0.0\n end_seconds: 3.5\n segment_text: \"Welcome to the museum.\"\n confidence: 0.95\n"
speaker_count:
range: integer
required: false
minimum_value: 0
examples:
- value: 3
primary_speaker:
# range: string
required: false
examples:
- value: Narrator
- value: Dr. Taco Dibbits, Museum Director
source_language_auto_detected:
range: boolean
required: false
ifabsent: 'false'
examples:
- value: true
paragraph_count:
range: integer
required: false
minimum_value: 0
examples:
- value: 15
sentence_count:
range: integer
required: false
minimum_value: 0
examples:
- value: 47
comments:
- Full text transcription of video audio content
- Extends VideoTextContent with transcript-specific properties
- Base class for VideoSubtitle (subtitles are transcripts + time codes)
- Supports both plain text and structured segment-based transcripts
- Critical for accessibility, discovery, and preservation
see_also:
- https://schema.org/transcript
- http://www.cidoc-crm.org/cidoc-crm/E33_Linguistic_Object
annotations:
specificity_score: 0.1
specificity_rationale: Generic utility class/slot created during migration
custodian_types: "['*']"
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