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improve GNNLux docs
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‎.gitignore‎

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@@ -18,3 +18,4 @@ GraphNeuralNetworks/docs/build
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GraphNeuralNetworks/docs/src/GNNGraphs
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GraphNeuralNetworks/docs/src/GNNlib
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tutorials/docs/build
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prova.jl

‎GNNGraphs/docs/make.jl‎

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"Home" => "index.md",
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"Guides" => [
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"Graphs" => [
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"guides/gnngraph.md",
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"guides/heterograph.md",
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"guides/temporalgraph.md"
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],
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"Graphs" => "guides/gnngraph.md",
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"Heterogeneous Graphs" => "guides/heterograph.md",
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"Temporal Graphs" => "guides/temporalgraph.md",
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"Datasets" => "guides/datasets.md",
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],
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‎GNNLux/docs/Project.toml‎

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[deps]
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Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
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DocumenterInterLinks = "d12716ef-a0f6-4df4-a9f1-a5a34e75c656"
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GNNGraphs = "aed8fd31-079b-4b5a-b342-a13352159b8c"
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GNNLux = "e8545f4d-a905-48ac-a8c4-ca114b98986d"
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GNNlib = "a6a84749-d869-43f8-aacc-be26a1996e48"
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LiveServer = "16fef848-5104-11e9-1b77-fb7a48bbb589"
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Graphs = "86223c79-3864-5bf0-83f7-82e725a168b6"
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Lux = "b2108857-7c20-44ae-9111-449ecde12c47"

‎GNNLux/docs/make.jl‎

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using Documenter
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using DocumenterInterLinks
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using GNNlib
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using GNNLux
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using Lux, GNNGraphs, GNNlib, Graphs
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using DocumenterInterLinks
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DocMeta.setdocmeta!(GNNLux, :DocTestSetup, :(using GNNLux); recursive = true)
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mathengine = MathJax3(Dict(:loader => Dict("load" => ["[tex]/require", "[tex]/mathtools"]),
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:tex => Dict("inlineMath" => [["\$", "\$"], ["\\(", "\\)"]],
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"packages" => [
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"base",
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"ams",
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"autoload",
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"mathtools",
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"require"
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])))
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assets=[]
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prettyurls = get(ENV, "CI", nothing) == "true"
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mathengine = MathJax3()
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interlinks = InterLinks(
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"GNNGraphs" => ("https://carlolucibello.github.io/GraphNeuralNetworks.jl/GNNGraphs/", joinpath(dirname(dirname(@__DIR__)), "GNNGraphs", "docs", "build", "objects.inv")),
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"GNNlib" => ("https://carlolucibello.github.io/GraphNeuralNetworks.jl/GNNlib/", joinpath(dirname(dirname(@__DIR__)), "GNNlib", "docs", "build", "objects.inv")))
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"NNlib" => "https://fluxml.ai/NNlib.jl/stable/",
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# "GNNGraphs" => ("https://carlolucibello.github.io/GraphNeuralNetworks.jl/GNNGraphs/", joinpath(dirname(dirname(@__DIR__)), "GNNGraphs", "docs", "build", "objects.inv")),
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# "GNNlib" => ("https://carlolucibello.github.io/GraphNeuralNetworks.jl/GNNlib/", joinpath(dirname(dirname(@__DIR__)), "GNNlib", "docs", "build", "objects.inv"))
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)
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# Copy the docs from GNNGraphs and GNNlib. Will be removed at the end of the script
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cp(joinpath(@__DIR__, "../../GNNGraphs/docs/src"),
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joinpath(@__DIR__, "src/GNNGraphs"), force=true)
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cp(joinpath(@__DIR__, "../../GNNlib/docs/src"),
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joinpath(@__DIR__, "src/GNNlib"), force=true)
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makedocs(;
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modules = [GNNLux],
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doctest = false,
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clean = true,
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modules = [GNNLux, GNNGraphs, GNNlib],
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doctest = false, # TODO: enable doctest
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plugins = [interlinks],
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format = Documenter.HTML(; mathengine, prettyurls, assets = assets, size_threshold=nothing),
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format = Documenter.HTML(; mathengine,
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prettyurls = get(ENV, "CI", nothing) == "true",
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assets = [],
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size_threshold=nothing,
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size_threshold_warn=2000000),
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sitename = "GNNLux.jl",
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pages = ["Home" => "index.md",
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"API Reference" => [
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"Basic" => "api/basic.md",
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"Convolutional layers" => "api/conv.md",
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"Temporal Convolutional layers" => "api/temporalconv.md",],
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]
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)
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pages = [
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"Home" => "index.md",
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"Guides" => [
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"Graphs" => "GNNGraphs/guides/gnngraph.md",
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"Message Passing" => "GNNlib/guides/messagepassing.md",
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"Models" => "guides/models.md",
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"Datasets" => "GNNGraphs/guides/datasets.md",
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"Heterogeneous Graphs" => "GNNGraphs/guides/heterograph.md",
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"Temporal Graphs" => "GNNGraphs/guides/temporalgraph.md",
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],
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"API Reference" => [
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"Graphs (GNNGraphs.jl)" => [
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"GNNGraph" => "GNNGraphs/api/gnngraph.md",
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"GNNHeteroGraph" => "GNNGraphs/api/heterograph.md",
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"TemporalSnapshotsGNNGraph" => "GNNGraphs/api/temporalgraph.md",
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"Samplers" => "GNNGraphs/api/samplers.md",
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]
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"Message Passing (GNNlib.jl)" => [
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"Message Passing" => "GNNlib/api/messagepassing.md",
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"Other Operators" => "GNNlib/api/utils.md",
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]
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"Layers" => [
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"Basic layers" => "api/basic.md",
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"Convolutional layers" => "api/conv.md",
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# "Pooling layers" => "api/pool.md",
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"Temporal Convolutional layers" => "api/temporalconv.md",
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# "Hetero Convolutional layers" => "api/heteroconv.md",
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]
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],
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# "Developer guide" => "dev.md",
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],
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)
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rm(joinpath(@__DIR__, "src/GNNGraphs"), force=true, recursive=true)
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rm(joinpath(@__DIR__, "src/GNNlib"), force=true, recursive=true)
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deploydocs(;repo = "github.com/JuliaGraphs/GraphNeuralNetworks.jl.git", devbranch = "master", dirname = "GNNLux")
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deploydocs(repo = "github.com/JuliaGraphs/GraphNeuralNetworks.jl.git",
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devbranch = "master",
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dirname = "GNNLux")

‎GNNLux/docs/src/api/basic.md‎

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CollapsedDocStrings = true
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```
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## Basic Layers
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# Basic Layers
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```@docs
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GNNLayer

‎GNNLux/docs/src/api/conv.md‎

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| [`SAGEConv`](@ref) | ✓ | | | ✓ | ✓ |
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| [`SGConv`](@ref) | ✓ | | | | ✓ |
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## Docs
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```@autodocs
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Modules = [GNNLux]

‎GNNLux/docs/src/api/temporalconv.md‎

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Convolutions for time-varying graphs (temporal graphs) such as the [`TemporalSnapshotsGNNGraph`](@ref).
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## Docs
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```@autodocs
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Modules = [GNNLux]
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Pages = ["layers/temporalconv.jl"]

‎GNNLux/docs/src/guides/models.md‎

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# Models
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GNNLux.jl provides common graph convolutional layers by which you can assemble arbitrarily deep or complex models. GNN layers are compatible with
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Lux.jl ones, therefore expert Lux users are promptly able to define and train
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their models.
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In what follows, we discuss two different styles for model creation:
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the *explicit modeling* style, more verbose but more flexible,
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and the *implicit modeling* style based on [`GNNLux.GNNChain`](@ref), more concise but less flexible.
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## Explicit modeling
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In the explicit modeling style, the model is created according to the following steps:
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1. Define a new type for your model (`GNN` in the example below). Refer to the
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[Lux Manual](https://lux.csail.mit.edu/dev/manual/interface#lux-interface) for the
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definition of the type.
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2. Define a convenience constructor for your model.
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4. Define the forward pass by implementing the call method for your type.
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5. Instantiate the model.
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Here is an example of this construction:
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```julia
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using Lux, GNNLux
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using Zygote
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using Random, Statistics
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struct GNN <: AbstractLuxContainerLayer{(:conv1, :bn, :conv2, :dropout, :dense)} # step 1
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conv1
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bn
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conv2
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dropout
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dense
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end
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function GNN(din::Int, d::Int, dout::Int) # step 2
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GNN(GraphConv(din => d),
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BatchNorm(d),
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GraphConv(d => d, relu),
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Dropout(0.5),
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Dense(d, dout))
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end
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function (model::GNN)(g::GNNGraph, x, ps, st) # step 3
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x, st_conv1 = model.conv1(g, x, ps.conv1, st.conv1)
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x, st_bn = model.bn(x, ps.bn, st.bn)
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x = relu.(x)
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x, st_conv2 = model.conv2(g, x, ps.conv2, st.conv2)
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x, st_drop = model.dropout(x, ps.dropout, st.dropout)
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x, st_dense = model.dense(x, ps.dense, st.dense)
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return x, (conv1=st_conv1, bn=st_bn, conv2=st_conv2, dropout=st_drop, dense=st_dense)
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end
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din, d, dout = 3, 4, 2
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model = GNN(din, d, dout) # step 4
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rng = Random.default_rng()
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ps, st = Lux.setup(rng, model)
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g = rand_graph(rng, 10, 30)
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X = randn(Float32, din, 10)
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st = Lux.testmode(st)
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y, st = model(g, X, ps, st)
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st = Lux.trainmode(st)
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grad = Zygote.gradient(ps -> mean(model(g, X, ps, st)[1]), ps)[1]
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```
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## Implicit modeling with GNNChains
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While very flexible, the way in which we defined `GNN` model definition in last section is a bit verbose.
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In order to simplify things, we provide the [`GNNLux.GNNChain`](@ref) type. It is very similar
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to Lux's well known `Chain`. It allows to compose layers in a sequential fashion as Chain
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does, propagating the output of each layer to the next one. In addition, `GNNChain`
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propagates the input graph as well, providing it as a first argument
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to layers subtyping the [`GNNLux.GNNLayer`](@ref) abstract type.
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Using `GNNChain`, the model definition becomes more concise:
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```julia
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model = GNNChain(GraphConv(din => d),
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BatchNorm(d),
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x -> relu.(x),
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GraphConv(d => d, relu),
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Dropout(0.5),
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Dense(d, dout))
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```
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The `GNNChain` only propagates the graph and the node features. More complex scenarios, e.g. when also edge features are updated, have to be handled using the explicit definition of the forward pass.

‎GNNLux/docs/src/index.md‎

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# GNNLux.jl
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GNNLux.jl is a work-in-progress package that implements stateless graph convolutional layers, fully compatible with the [Lux.jl](https://lux.csail.mit.edu/stable/) machine learning framework. It is built on top of the GNNGraphs.jl, GNNlib.jl, and Lux.jl packages.
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GNNLux.jl is a package that implements graph convolutional layers fully compatible with the [Lux.jl](https://lux.csail.mit.edu/stable/) deep learning framework. It is built on top of the GNNGraphs.jl, GNNlib.jl, and Lux.jl packages.
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See [GraphNeuralNetworks.jl](https://juliagraphs.org/GraphNeuralNetworks.jl/graphneuralnetworks/) instead for a
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[Flux.jl](https://fluxml.ai/Flux.jl/stable/)-based implementation of graph neural networks.
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## Installation
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GNNLux.jl is a registered Julia package. You can easily install it through the package manager :
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```julia
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pkg> add GNNLux
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```
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## Package overview
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Let's give a brief overview of the package by solving a graph regression problem with synthetic data.
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### Data preparation
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We generate a dataset of multiple random graphs with associated data features, then split it into training and testing sets.

‎GraphNeuralNetworks/docs/make.jl‎

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"Home" => "index.md",
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"Guides" => [
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"Graphs" => ["GNNGraphs/guides/gnngraph.md",
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"GNNGraphs/guides/heterograph.md",
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"GNNGraphs/guides/temporalgraph.md"],
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"Graphs" => "GNNGraphs/guides/gnngraph.md",
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"Message Passing" => "GNNlib/guides/messagepassing.md",
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"Models" => "guides/models.md",
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"Datasets" => "GNNGraphs/guides/datasets.md",
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"Heterogeneous Graphs" => "GNNGraphs/guides/heterograph.md",
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"Temporal Graphs" => "GNNGraphs/guides/temporalgraph.md",
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],
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"Tutorials" => [

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