Coordinate Matrix

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

A multi-dimensional numeric value expressed as a coordinate matrix or vector — the generalisation of ScalarQuantity to vector, matrix, and tensor results. Carries a serialised matrix literal (matrixValue), shape descriptor (matrixShape), reference frame (hasReferenceFrame), unit (hasUnit), and determinacy (hasDeterminacy). Used for colourspace tuples [j,k,l]+intensity, audio spectra, thermal images, and air-quality compound readings. The actual matrix algebra (dot products, transforms, decompositions) lives in the solver layer (Principle 12).

Structure

Subclass of: gmeow:Entity, gufo:Object

Practical Pattern

Use gmeow:CoordinateMatrix as a specialized kind of gmeow:Entity, gufo:Object. 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.

Measured Vs Perceived

• Source: slices/extensions/sensory-environment/examples/measured-vs-perceived.ttl
• Examples catalog: open in catalog#example-slices-extensions-sensory-environment-examples-measured-vs-perceived

# SPDX-FileCopyrightText: 2026 Blackcat Informatics® Inc. <paudley@blackcatinformatics.ca>
# SPDX-License-Identifier: CC-BY-4.0
#
# Worked example: measured ≠ perceived (, P11/P12). A gmeow:SensoryEnvironment
# at a location and instant carries TWO kinds of condition that GMEOW refuses to
# conflate: a gmeow:hasMeasuredCondition (a gmeow:CoordinateMatrix — instrument
# data, every value in an explicit reference frame) and a gmeow:hasPerceivedCondition
# (a gmeow:SensoryPerception — how an observer experienced it, per
# gmeow:perceptionModality). "23.5 °C on the grid" and "it felt warm" are
# different claims about the same room: one objective and framed, one subjective.
@prefix gmeow: <https://blackcatinformatics.ca/gmeow/> .
@prefix ex:    <https://blackcatinformatics.ca/gmeow/examples/sensory-environment/> .
@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd:   <http://www.w3.org/2001/XMLSchema#> .

# --- Objective: a grid of temperature readings, framed (P11).
ex:thermalGrid a gmeow:CoordinateMatrix ;
    gmeow:coordinateMatrixFrame gmeow:referenceFrameLocalGrid ;
    gmeow:matrixShape           "1" ;
    gmeow:matrixValue           "23.5" .

Common Companion Terms

gmeow:Entity

External Equivalences

Equivalent or closely aligned targets: mls, sosa

Linkages

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

Term Equivalences