NeuralNetworkSchema.ttl

# baseURI: https://w3id.org/tinyml-schema/neural-network-schema

@prefix : <https://w3id.org/tinyml-schema/neural-network-schema#> .
@prefix cep: <https://w3id.org/tinyml-schema/cep-rule-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix s3n: <http://w3id.org/s3n/> .
@prefix ssn: <http://www.w3.org/ns/ssn/> .
@prefix schema: <https://schema.org/> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix vann: <http://purl.org/vocab/vann/> .

<https://w3id.org/tinyml-schema/neural-network-schema>
  rdf:type owl:Ontology ;
  rdfs:comment "This is a schema for semantically describing artificial neural networks." ;
  dc:issued "2021-12-21" ;
  vann:preferredNamespaceUri "https://w3id.org/tinyml-schema/neural-network-schema#" ;
  rdfs:label "The TinyML Neural Network Ontology" ;
  vann:preferredNamespacePrefix "nnet" ;
  owl:versionInfo 2.0 ;
.

#################################################################
#    Annotation properties
#################################################################

dc:issued rdf:type owl:AnnotationProperty .
dc:title rdf:type owl:AnnotationProperty .
vann:preferredNamespacePrefix rdf:type owl:AnnotationProperty .
vann:preferredNamespaceUri rdf:type owl:AnnotationProperty .

#################################################################
#    Classes
#################################################################

:NeuralNetwork
  rdf:type owl:Class ;
  rdfs:label "A neural network." ;
  rdfs:subClassOf s3n:Algorithm ;
  rdfs:subClassOf rdfs:Class ;
  rdfs:subClassOf [
      rdf:type owl:Restriction ;
      owl:allValuesFrom :NetworkInput ;
      owl:onProperty ssn:hasInput ;
    ] ;
  rdfs:subClassOf [
      rdf:type owl:Restriction ;
      owl:allValuesFrom :NetworkOutput ;
      owl:onProperty ssn:hasOutput ;
    ] ;
.
:Layer
  rdf:type owl:Class ;
  rdfs:comment "Layer of a neural network." ;
  rdfs:label "Layer" ;
  rdfs:subClassOf rdfs:Class ;
.
:LayerType
  rdf:type owl:Class ;
  rdfs:comment "Type of a layer of a neural network." ;
  rdfs:label "LayerType" ;
  rdfs:subClassOf schema:Enumeration ;
  rdfs:subClassOf rdfs:Class ;
.
:NetworkInput
  rdf:type owl:Class ;
  rdfs:label "NetworkInput" ;
  rdfs:comment "A description of the input to the NN." ;
  rdfs:subClassOf ssn:Input ;
.
:NetworkOutput
  rdf:type owl:Class ;
  rdfs:label "NetworkOutput" ;
  rdfs:comment "A description of the output from the NN." ;
  rdfs:subClassOf ssn:Output ;
.
:Quantization
  rdf:type owl:Class ;
  rdfs:comment "Type of quantization of a neural network in the context of TinyML." ;
  rdfs:label "Quantization" ;
  rdfs:subClassOf schema:Enumeration ;
  rdfs:subClassOf rdfs:Class ;
.

#################################################################
#    Properties
#################################################################

schema:runtimePlatform 
	rdf:type rdf:Property ;
    rdfs:label "runtimePlatform" ;
    schema:domainIncludes nnet:NeuralNetwork ;
    schema:rangeIncludes schema:Text .
	
schema:description 
	rdf:type rdf:Property ;
    rdfs:label "description of the model" ;
    schema:domainIncludes nnet:NeuralNetwork ;
    schema:rangeIncludes schema:Text .

schema:identifier
	rdf:type rdf:Property ;
    rdfs:label "ID" ;
    schema:domainIncludes nnet:NeuralNetwork ;
    schema:rangeIncludes schema:Text .
	
schema:name
	rdf:type rdf:Property ;
    rdfs:label "name" ;
    schema:domainIncludes nnet:NeuralNetwork ;
    schema:rangeIncludes schema:Text .
	
:hasQuantization
  rdf:type rdf:Property ;
  schema:domainIncludes :NeuralNetwork ;
  schema:rangeIncludes :Quantization ;
  rdfs:comment "The quantization of a neural network." ;
  rdfs:label "hasQuantization" ;
.
:hasMultiplyAccumulateOps
  rdf:type rdf:Property ;
  schema:domainIncludes :NeuralNetwork ;
  schema:rangeIncludes schema:Number ;
  rdfs:comment "Muliply accumulate operations." ;
  rdfs:label "hasMultiplyAccumulateOps" ;
.
:hasWeights
  rdf:type rdf:Property ;
  schema:domainIncludes :NeuralNetwork ;
  schema:rangeIncludes schema:URL ;
  rdfs:comment "Weights of a neural network." ;
  rdfs:label "weights" ;
.
:inputLayer
  rdf:type rdf:Property ;
  schema:domainIncludes :NeuralNetwork ;
  schema:rangeIncludes :Layer ;
  rdfs:comment "Input layer of a neural network." ;
  rdfs:label "inputLayer" ;
.
:middleLayer
  rdf:type rdf:Property ;
  schema:domainIncludes :NeuralNetwork ;
  schema:rangeIncludes :Layer ;
  rdfs:comment "Middle layer of a neural network." ;
  rdfs:label "inputLayer" ;
.
:outputLayer
  rdf:type rdf:Property ;
  schema:domainIncludes :NeuralNetwork ;
  schema:rangeIncludes :Layer ;
  rdfs:comment "Output layer of a neural network." ;
  rdfs:label "outputLayer" ;
.
:hasLayerType
  rdf:type rdf:Property ;
  schema:domainIncludes :Layer ;
  schema:rangeIncludes :LayerType ;
  rdfs:comment "Type of a layer of a neural network." ;
  rdfs:label "hasType" ;
.
:shapeIn
  rdf:type rdf:Property ;
  schema:domainIncludes :Layer ;
  schema:rangeIncludes schema:Number ;
  rdfs:comment "Shape of input of a layer." ;
  rdfs:label "shapeIn" ;
.
:shapeOut
  rdf:type rdf:Property ;
  schema:domainIncludes :Layer ;
  schema:rangeIncludes schema:Number ;
  rdfs:comment "Shape of output of a layer." ;
  rdfs:label "shapeOut" ;
.
:hasIndex
  rdf:type rdf:Property ;
  schema:domainIncludes :Layer ;
  schema:rangeIncludes schema:Integer ;
  rdfs:comment "Index of a layer." ;
  rdfs:label "index" ;
.
:isTrainable
  rdf:type rdf:Property ;
  schema:domainIncludes :Layer ;
  schema:rangeIncludes schema:Boolean ;
  rdfs:comment "Defines whether a certain layer of a neural network is trainable." ;
  rdfs:label "trainable" ;
.


#################################################################
#    LayerType
#################################################################
:FullyConnected
  rdf:type :LayerType ;
  rdfs:comment "Fully connected network." ;
  rdfs:label "FullyConnected" ;
.
:Logistic
  rdf:type :LayerType ;
  rdfs:comment "Logistic type of network." ;
  rdfs:label "Logistic" ;
.
:Relu
  rdf:type :LayerType ;
  rdfs:comment "Relu type of network." ;
  rdfs:label "Relu" ;
.
:Dequantize
  rdf:type :LayerType ;
  rdfs:comment "Dequantize layer." ;
  rdfs:label "dequantize" ;
.
:Quantize
  rdf:type :LayerType ;
  rdfs:comment "Quantize layer." ;
  rdfs:label "quantize" ;
.
:Softmax
  rdf:type :LayerType ;
  rdfs:comment "softmax Layer." ;
  rdfs:label "softmax" ;
.
:DepthwiseConv2D
  rdf:type :LayerType ;
  rdfs:comment "depthwiseConv2D Layer." ;
  rdfs:label "depthwiseConv2D" ;
.
:Reshape
  rdf:type :LayerType ;
  rdfs:comment "reshape Layer." ;
  rdfs:label "reshape" ;
.
:MaxPool2D
  rdf:type :LayerType ;
  rdfs:comment "MaxPool2D Layer." ;
  rdfs:label "maxPool2D" ;
.
:Conv2D
  rdf:type :LayerType ;
  rdfs:comment "Conv2D Layer." ;
  rdfs:label "conv2D" ;
.
:AveragePool2D
  rdf:type :LayerType ;
  rdfs:comment "AveragePool2D Layer." ;
  rdfs:label "averagePool2D" ;
.
:ResizeNearestNeighbor
  rdf:type :LayerType ;
  rdfs:comment "ResizeNearestNeighbor Layer." ;
  rdfs:label "resizeNearestNeighbor" ;
.

#################################################################
#    Quantization
#################################################################
:Float32
  rdf:type :Quantization ;
  rdfs:comment "Data type: Floating number 32." ;
  rdfs:label "float32" ;
.
:Float16
  rdf:type :Quantization ;
  rdfs:comment "Data type: Floating number 16." ;
  rdfs:label "float16" ;
.
:Int16
  rdf:type :Quantization ;
  rdfs:comment "Data type: Integer number 16." ;
  rdfs:label "int16" ;
.
:Int8
  rdf:type :Quantization ;
  rdfs:comment "Data type: Integer number 8." ;
  rdfs:label "int8" ;
.