* Utility functions for calculating Lp norm.

* Use functor object as a reduction operation.

* Use new api of make_ng_reduction_op.

* Use utility norm functions for reduction operations.

* Onnx GlobalLpPool operator.

* Ensure correct shapes after lp_norm reduction.

* Remove unused function overload.

* Fix shapes and tensor types.

* Unit tests.

* Update comments.

* Update supported ops status table.

* Fix: take absolute value of input tensor elements.

* UT: with odd value p-norm.

* Fix: move taking abs value into respective lp-norm functions.

* Fix clang -Wdocumentation-unknown-command error.

* Update supported op status table with new Jira ticket for Erf op.

* Update supported_ops status table.

* Update interface of make_ng_reduction_op - accept std::function object.

* Update to use new make_ng_reduction_op api.

* Remove unused header.

* Fix errors on CentOS.

* [ONNX] Overriding custom ops

* Add UT

* Style Check

* Review & style fix

* [ONNX] Enable OneHot operation

* Add UT

* Style check

* Change converts

* Change assert messages

* Update comments

* Update onehot.cpp

* [ONNX] Add support for ONNX sinh op

* [ONNX] Test the sinh op and improve an error msg about not supported op version

* [ONNX] Fix the failing tests by moving sinh to opset 1

* [ONNX] Apply clang-format to fix failing CI builds

* [ONNX] Add and test ONNX cosh op

* [ONNX] Add and test ONNX cosh op

* [ONNX] Add and test ONNX sign op

* [ONNX] Test the sign operator with more challenging values

* [ONNX] Update of supported ops documentation table

* [ONNX] Add null node.

Optional inputs in ONNX standard are represented by empty string.
We need a placeholder to keep information which inputs are not provided.

* Rename class null_node -> NullNode

* Remove unnecesary validate_and_infer_types method

* Add <memory> header

* Change name != "" -> !name.empty()

* Change constructor

* Little description

* Change node type in NullNode

* Add is_null() method

* Docstring

* Add UT

* Use override

* Style check

* Update null_node.cpp

* [ONNX] Move make_ng_constant to Tensor class

* [ONNX] Add workaround for initializers without corresponding inputs

* Fix malformed test models

* clang-format

* Avoid creating multiple constants

* Code review comments

* [ONNX] Add support for ONNX sinh op

* [ONNX] Test the sinh op and improve an error msg about not supported op version

* [ONNX] Fix the failing tests by moving sinh to opset 1

* [ONNX] Apply clang-format to fix failing CI builds

* [ONNX] Add and test ONNX cosh op

* [ONNX] Add and test ONNX cosh op

* Enable support for group attribute.

* UT for ConvTranspose with groups.

* Validate group attribute value.

* Move helper function to unnamed namespace.

* Access values with bounds checking.

* Fix spelling.

* UT for Softplus ONNX operator testing edge cases.

* Rename UT model name.

* Handle overflows.

* Add UT for ininite values and check them correctly.

* Update values in comment

* Add broadcasting to variadic OP in opset 8.

* Apply style format.

* Update onnx_import.cpp

* Unit tests for conv2d causing errors.

* UT for conv3D_bias

* Fix padding order.

`padding below` in nGraph terminology means padding added at the beginning
of the axis. Whereas `padding above` means padding added at the end of
the axis.

* Rename test to sth more descriptive.

* Apply clang-format.

* Fix handling of `SAME_UPPER/LOWER` auto_pads mode for convolution/pooling ops.

* Fix order of padding_below/above.
Signed-off-by: Adam Rogowiec <adam.rogowiec@intel.com>

* Fix error in calculating output data shape.

* Add static keyword for helper function.

* Fix MatMul for cases where left hand side is 1D vector.

- Add unit-test for this case.

* Add new line at the end of file.

* Log warning when dealing with scalars

* Apply clang-format

* Review: fix spelling, rename test model.

* Add ArgMin operator

* Add ArgMax and a basic test case

* Rename variables

* Apply workaround for problems with Reshape on i64

* Review comments

* Review comments

* onnx: add information about a domain to operators set
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* onnx: updates after review
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* onnx: update comments in the code
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* onnx: fix bug in node's description method
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* onnx: fix CentOS compilation
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* onnx: more after review changes
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* [ONNX] Assert all op types supported

* Apply clang-format

* Address code review comments

* Fix #include statements

* Update ONNX Squeeze Op implementation to conform with doc. Add unit test.

* Apply code-format.

* Correct attribute value type.

* Change used loop structure.

* Modified version of loops.

- Without erase and with minimal computation time complexity.

* Run CI

* [ONNX] Non-linear operators

* Review fix pt. 1

* Review fix pt. 2

* Non-linear tests

* style check

* Exception fix

* Test fix

* Add missing header.

* Test for ReduceSum

* Simple tests for reductions

- L1/L2/LogSum/LogSumExp/Max/Mean/Min/Prod/SumSquare.

* Add floating point literal suffix

* Fix typo

* [ONNX] Shape operator

* Review fix pt. 1

* Style check

* Move reshape utils down to reshape namespace.

* Reshape operation.

* Reshape operator binding.

* Error fixes.

* Reshape unit tests.

* Move flatten utility function to reshape namespace.

* Fix unused catched exception object

* Add Constant support for int64

* Review fix.

* clang-format

* Review fix part 2.

* Enable output shape as a second node input (only Constant).

* Unit test for "dynamic" output shape (from Constant node).

* Review fixes.

* Make sure second Reshape op input is Constant node.

* [ONNX] Concat operator

* Style fix

* [ONNX] Sum op

* [ONNX] Generic variadic op template

* Add support for Min op

* clang-format

* Add support for Max op

* Add support for Mean op

* Docs, code cleanup

* Docs, code cleanup

* [ONNX] Softmax operator

* Review fix pt. 1

* Review fix pt. 2

* Add softmax test

* Update onnx_import.cpp

* [ONNX] MatMul operator

* Add NL on EOF

* Review fix pt. 1

* Enable Mul OP

* Reshape, broadcasting utils and Gemm op

* Style check

* Review fix pt. 1

* Review fix pt. 2

* Reuse documentation

* Move batch_norm implementation to a .cpp file
* Move split implementation to a .cpp file

* [ONNX] Refactor exceptions

* [ONNX] Attribute helper functions

* [ONNX] Convolution operation