Sigmoid Function
MathematicalFunction AIO:SigmoidFunction NOT_REVIEWED
A mathematical function that applies the sigmoid activation function sigmoid(x) = 1 / (1 + exp(-x)) always returning a value between 0 and 1.
Ontology IRI:
https://w3id.org/aio/SigmoidFunction
Ontology Structure & Relationships
Parent Classes
Branches
Annotations & Sources
Synonyms:
- tore exact
Definition Sources:
Subsets:
https://w3id.org/aio/ActivationFunctionSubsethttps://w3id.org/aio/FunctionSubset
Curated AIMech Concepts Grounded to this Class
2 Concepts| Curated Concept | Kind | Mapping Relation | Rationale |
|---|---|---|---|
Stochastic-times-smooth unit
AIMech:StochasticTimesSmoothUnit |
Mathematical Methods | related_match | The specified construction uses the pinned sigmoid function to define p before taking its square root for both gate probability and amplitude. This is a stochastic-construction-to-component relationship, not equivalence to sigmoid or a deterministic-function subclass. |
Structurally constrained recurrent neural network
AIMech:StructurallyConstrainedRecurrentNeuralNetwork |
Architectures | related_match | The paper names a sigmoid fast-state operation and the author graph uses nn.Sigmoid. The architecture is related to its activation function, not a subclass of that mathematical function. |
Import Provenance & Upstream Synchronization
Source Repo: AIO GitHub
Release Version:
aio.jsonCommit:
397851c547…License: CC-BY-4.0
Imported At: 2026-10-10T07:34:10Z
SHA256:
8f741d71408c…
Source File:
data/aio/SigmoidFunction.yaml