# Import ONNX model

**URL:** <https://discourse.julialang.org/t/import-onnx-model/60260>\
**Category:** General Usage\
**Tags:** flux, machine-learning\
**Created:** [April 29, 2021, 4:33pm UTC](https://discourse.julialang.org/t/import-onnx-model/60260 "2021-04-29T16:33:03Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![March-08](https://avatars.discourse-cdn.com/v4/letter/m/96bed5/32.png) [@March-08](https://discourse.julialang.org/u/March-08)\
**Post date:** [April 29, 2021, 4:33pm UTC](https://discourse.julialang.org/t/import-onnx-model/60260/1 "2021-04-29T16:33:03Z")

</div>

Hi.

I am having issues including ONNX models in my code.

```julia
mnistnet = ONNX.load_model("/user/mp/home/models/vision/classification/mnist/model/mnist-1.onnx")
weights = ONNX.load_weights("/user/mp/home/models/vision/classification/mnist/model/weights.bson")
model = include("/user/mp/home/models/vision/classification/mnist/model/model.jl")

```

```julia
ERROR: syntax: unexpected semicolon in tuple around /user/mp/home/models/vision/classification/mnist/model/model.jl:4
Stacktrace:
 [1] top-level scope at /user/mp/home/models/vision/classification/mnist/model/model.jl:4

```

The model.jl file is the following.

```julia
    using Statistics 
    Mul(a,b,c) = b .* reshape(c, (1,1,size(c)[a],1)) 
    Add(axis, A ,B) = A .+ reshape(B, (1,1,size(B)[1],1)) 
    ((c_1 = reshape(var"weights[\"Constant312\"]", broadcast(Int64, Tuple([256, 10]))), c_2 = MaxPool((3, 3), var"pad=(0, 0, 0, 0)", var"stride=(3, 3)"), c_3 = CrossCor(var"weights[\"Constant340\"]", Float32[0.0], relu, var"stride=(1, 1)", var"pad=(2, 2, 2, 2)", var"dilation=(1, 1)"), c_4 = MaxPool((2, 2), var"pad=(0, 0, 0, 0)", var"stride=(2, 2)"), c_5 = CrossCor(var"weights[\"Constant321\"]", Float32[0.0], relu, var"stride=(1, 1)", var"pad=(2, 2, 2, 2)", var"dilation=(1, 1)"), c_6 = reshape(reshape(var"weights[\"Constant318\"]", broadcast(Int64, Tuple([8, 1, 1]))), broadcast(Int64, Tuple([8]))), c_7 = reshape(reshape(var"weights[\"Constant346\"]", broadcast(Int64, Tuple([16, 1, 1]))), broadcast(Int64, Tuple([16]))), c_8 = broadcast(Int64, Tuple([1, 256])), ((x_9,)->(c_1 * reshape(c_2(relu.(c_3(c_4(relu.(c_5(Div(0, x_9, var"weights[\"Constant377\"]")) .+ c_6))) .+ c_7)), c_8) .+ var"weights[\"Constant367\"]",;));),;)

```

---

<div class="post-metadata">

**Author:** ![darsnack](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/darsnack/32/10144_2.png) [@darsnack](https://discourse.julialang.org/u/darsnack)\
**Post date:** [April 29, 2021, 6:08pm UTC](https://discourse.julialang.org/t/import-onnx-model/60260/2 "2021-04-29T18:08:27Z")

</div>

The error seems unrelated to BSON.jl. It seems to be in the 4th line of your `models.jl` file. Trying to rewrite that line:

```julia
((c_1 = reshape(var"weights[\"Constant312\"]", broadcast(Int64, Tuple([256, 10]))),
  c_2 = MaxPool((3, 3), var"pad=(0, 0, 0, 0)", var"stride=(3, 3)"),
  c_3 = CrossCor(var"weights[\"Constant340\"]", Float32[0.0], relu, var"stride=(1, 1)", var"pad=(2, 2, 2, 2)", var"dilation=(1, 1)"),
  c_4 = MaxPool((2, 2), var"pad=(0, 0, 0, 0)", var"stride=(2, 2)"),
  c_5 = CrossCor(var"weights[\"Constant321\"]", Float32[0.0], relu, var"stride=(1, 1)", var"pad=(2, 2, 2, 2)", var"dilation=(1, 1)"),
  c_6 = reshape(reshape(var"weights[\"Constant318\"]", broadcast(Int64, Tuple([8, 1, 1]))), broadcast(Int64, Tuple([8]))),
  c_7 = reshape(reshape(var"weights[\"Constant346\"]", broadcast(Int64, Tuple([16, 1, 1]))), broadcast(Int64, Tuple([16]))),
  c_8 = broadcast(Int64, Tuple([1, 256])), 
  ((x_9,)->(c_1 * reshape(c_2(relu.(c_3(c_4(relu.(c_5(Div(0, x_9, var"weights[\"Constant377\"]")) .+ c_6))) .+ c_7)), c_8) .+ var"weights[\"Constant367\"]",;));),;)

```

It looks like you are trying to load the weights into layers and construct an anonymous function to put everything together. I am not sure why this is written as a bunch of tuples? Here is what I think you are trying to do:

```julia
c_1 = reshape(var"weights[\"Constant312\"]", broadcast(Int64, Tuple([256, 10])))
c_2 = MaxPool((3, 3), var"pad=(0, 0, 0, 0)", var"stride=(3, 3)")
c_3 = CrossCor(var"weights[\"Constant340\"]", Float32[0.0], relu, var"stride=(1, 1)", var"pad=(2, 2, 2, 2)", var"dilation=(1, 1)")
c_4 = MaxPool((2, 2), var"pad=(0, 0, 0, 0)", var"stride=(2, 2)")
c_5 = CrossCor(var"weights[\"Constant321\"]", Float32[0.0], relu, var"stride=(1, 1)", var"pad=(2, 2, 2, 2)", var"dilation=(1, 1)")
c_6 = reshape(reshape(var"weights[\"Constant318\"]", broadcast(Int64, Tuple([8, 1, 1]))), broadcast(Int64, Tuple([8])))
c_7 = reshape(reshape(var"weights[\"Constant346\"]", broadcast(Int64, Tuple([16, 1, 1]))), broadcast(Int64, Tuple([16])))
c_8 = broadcast(Int64, Tuple([1, 256]))

f = x_9 -> c_1 * reshape(c_2(relu.(c_3(c_4(relu.(c_5(Div(0, x_9, var"weights[\"Constant377\"]")) .+ c_6))) .+ c_7)), c_8) .+ var"weights[\"Constant367\"]"

```

Of course, this just assigns the anonymous function to `f`. It would be better if you refactored your `models.jl` file to contain a function that accepts `weights` as an argument, then return a new model.

---

<div class="post-metadata">

**Author:** ![March-08](https://avatars.discourse-cdn.com/v4/letter/m/96bed5/32.png) [@March-08](https://discourse.julialang.org/u/March-08)\
**Post date:** [May 3, 2021, 9:13am UTC](https://discourse.julialang.org/t/import-onnx-model/60260/3 "2021-05-03T09:13:39Z")

</div>

Got another error:

```julia
ERROR: UndefVarError: weights["Constant312"] not defined

```

Where my weights are:

```julia
julia> weights
Dict{String,Any} with 7 entries:
  "Constant340" => Float32[-0.0485564 0.0842415 … 0.0698724 0.00338067; -0.0910136 -0.168389 … 0.000768774 0.251301; … ; -0.128403 -0.0190255 … …
  "Constant321" => Float32[-0.00890567 -0.591976 … -0.159537 0.0384988; -0.236907 -0.475285 … 0.557541 0.226019; … ; -0.0645618 0.768216 … -0.29…
  "Constant312" => Float32[0.0916329 -0.0484465 -0.192239 0.018026; 0.121436 0.136893 0.0943201 0.0242815; … ; -0.147887 -0.167316 0.0317782 0.0…
  "Constant318" => Float32[-0.16154, -0.433836, 0.0916414, -0.0168522, -0.0650264, -0.131738, 0.0204176, -0.12111]
  "Constant367" => Float32[-0.044856; 0.00779166; … ; 0.0843221; -0.0545404]
  "Constant346" => Float32[-0.0822488, -0.108869, -0.14104, -0.204869, -0.179136, -0.215438, -0.133805, -0.195725, -0.268251, -0.258212, -0.0761…
  "Constant377" => fill(255.0)

```

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<div class="post-metadata">

**Author:** ![darsnack](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/darsnack/32/10144_2.png) [@darsnack](https://discourse.julialang.org/u/darsnack)\
**Post date:** [May 3, 2021, 12:22pm UTC](https://discourse.julialang.org/t/import-onnx-model/60260/4 "2021-05-03T12:22:11Z")

</div>

Everywhere it says `var”weights”…` should just be `weights[…]`