Chunk

• CURIE: gmeow:Chunk
• IRI: https://blackcatinformatics.ca/gmeow/Chunk
• Category: class
• Defined by: gmeow:slices/ai
• Box roles: TBox role (What is this?)

A contiguous segment of a source information object, produced by a chunking step for retrieval — the unit a retrieval returns, a model reads, and an evidence span pins into. Located in its source by gmeow:chunkOf + gmeow:spanStart/gmeow:spanEnd and content-addressed via the EXISTING gmeow:contentDigest (sources slice), so 'which exact bytes did the model see?' is answerable after the fact.

Structure

Subclass of: gmeow:InformationObject

Practical Pattern

Use gmeow:Chunk as a specialized kind of gmeow:InformationObject. Add statement metadata or a standpoint when the assertion needs provenance, confidence, or vantage.

Example Snippets

These snippets are generated from canonical slice examples and trimmed to the Turtle blocks where this term appears.

Grounded Claim

• Source: slices/core/ai/examples/grounded-claim.ttl
• Examples catalog: open in catalog#example-slices-core-ai-examples-grounded-claim

ex:chunk-042 a gmeow:Chunk ;
    gmeow:chunkOf ex:handbook ;
    gmeow:spanStart "18200"^^xsd:nonNegativeInteger ;
    gmeow:spanEnd "18950"^^xsd:nonNegativeInteger ;
    gmeow:contentDigest "blake3:1a2b3c4d5e6f708192a3b4c5d6e7f8091a2b3c4d5e6f708192a3b4c5d6e7f809" .

Flagship Epistemic Ledger

• Source: slices/core/epistemics/examples/flagship-epistemic-ledger.ttl
• Examples catalog: open in catalog#example-slices-core-epistemics-examples-flagship-epistemic-ledger

@prefix gmeow: <https://blackcatinformatics.ca/gmeow/> .
@prefix ex:    <https://blackcatinformatics.ca/gmeow/examples/epistemics/flagship/> .
@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd:   <http://www.w3.org/2001/XMLSchema#> .



ex:chunk1 a gmeow:Chunk ;
    rdfs:label "retrieved chunk containing the meeting date"@en ;
    gmeow:chunkOf ex:source1 ;
    gmeow:spanStart 142 ;
    gmeow:spanEnd 186 .

Common Companion Terms

gmeow:InformationObject

External Equivalences

Equivalent or closely aligned targets: oa

Linkages

Generated from the canonical mapping DSL. SSSOM files are the generated public interchange form for term equivalences.

Term Equivalences

Usage Advice

Use when

• Use for a retrieval-sized segment cut from a larger source — the unit a retriever returns, a model reads, and an evidence span pins into; the genuinely missing information-object kind in the Source → Chunk → EvidenceSpan → claim spine.

Avoid when

• Avoid typing the whole source document as a Chunk (the source is a plain gmeow:InformationObject) and avoid re-chunking by re-pointing — a new segmentation mints fresh Chunk individuals, since gmeow:chunkOf is functional.

How to use

• Type the segment gmeow:Chunk, locate it with gmeow:chunkOf + gmeow:spanStart/gmeow:spanEnd, content-address it with the existing gmeow:contentDigest, and let evidence spans pin into it via gmeow:spanOfChunk.

Examples

• ex:c1 a gmeow:Chunk; gmeow:chunkOf ex:doc; gmeow:spanStart 0; gmeow:spanEnd 512; gmeow:contentDigest ex:sha256.