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* new functional for creating data splits in graph

* minor fix in data split implementation

* apply suggestions from code review
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* refactoring + unit tests

* fix test file name

* move imports to the top

* Revert "fix test file name"

This reverts commit 126323e38c8de6fdc73c826dccc9048aed8f9634.

* remove nccl submodule

* address linter issues

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Co-authored-by: Mufei Li <mufeili1996@gmail.com>
Co-authored-by: Hongzhi (Steve), Chen <chenhongzhi.nkcs@gmail.com>

* add PATTERN dataset

* fix bug

* fix bugs

* fix issues

* refine according to dongyu's comments

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Co-authored-by: BuptTab <gyzhou2000@gmail.com>
Co-authored-by: rudongyu <ru_dongyu@outlook.com>

* add CuGraphGATConv model

* lintrunner

* update model to reflect changes in make_mfg_csr(), move max_in_degree to forward()

* simplify pytest markers

* fall back to FG option for large fanout

* update error msg

* add feat_drop and activation options

* add residual option

* Update python/dgl/nn/pytorch/conv/cugraph_gatconv.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/conv/cugraph_gatconv.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* reset res_fc

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Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update

* lint

* lint

* r prefix

* CI

* lint

* skip TF

* Update

* edge homophily

* linkx homophily

* format

* skip TF

* fix test

* update

* lint

* lint

* review

* lint

* update

* lint

* update

* CI

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Co-authored-by: Ubuntu <ubuntu@ip-172-31-36-188.ap-northeast-1.compute.internal>

* add CLUSTER dataset

* refine according to dongyu's comments

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Co-authored-by: rudongyu <ru_dongyu@outlook.com>

* Update

* lint

* lint

* r prefix

* CI

* lint

* skip TF

* Update

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Co-authored-by: Ubuntu <ubuntu@ip-172-31-36-188.ap-northeast-1.compute.internal>

* subgraphx commit

* nits

* newline eof added

* lint fix

* test script updated to use default values

* lint fix

* graphs that are used for test cases are updated to a small graph

* lint formatted

* test paramter adj to complete the test under 20s

* lint fixes

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Co-authored-by: kxm180046 <kxm180046@utdallas.edu>

* add CuGraphSAGEConv model

* fix lint issues

* update model to reflect changes in make_mfg_csr(), move max_in_degree to forward()

* lintrunner

* allow reset_parameters()

* remove norm option, simplify test

* allow full graph fallback option, add example

* address comments

* address reviews

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Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* add SVD positional encoding

* modify importing module

* Fixed certain problems

* Change the test unit to a nonsigular one

* Fixed typo and make accord with lintrunner

* added svd_pe into dgl.rst

* Modified dgl.rst

changing privimitive to primitive

Co-authored-by: Steve <ubuntu@ip-172-31-34-29.ap-northeast-1.compute.internal>

* dgl

* blabla
Co-authored-by: Steve <ubuntu@ip-172-31-34-29.ap-northeast-1.compute.internal>

* [Sparse] Refactor matmul interface.

* Update

* as_sp_to_sp

* dense

* revert_mock

* test

* revert
Co-authored-by: Steve <ubuntu@ip-172-31-34-29.ap-northeast-1.compute.internal>

Co-authored-by: Steve <ubuntu@ip-172-31-34-29.ap-northeast-1.compute.internal>

Co-authored-by: Steve <ubuntu@ip-172-31-34-29.ap-northeast-1.compute.internal>

* doc

* minor

* black

* no-lint

* reorg
Co-authored-by: Steve <ubuntu@ip-172-31-34-29.ap-northeast-1.compute.internal>

* remove unnecessary exposure.

* remove_add_power

* remove_warning

* reorder
Co-authored-by: Steve <ubuntu@ip-172-31-34-29.ap-northeast-1.compute.internal>

* Update

* Update

* Update

* lint

* lint

* Update

* CI

* Update diag_matrix.py

* Update sparse_matrix.py

* Update sparse_matrix.py
Co-authored-by: Ubuntu <ubuntu@ip-172-31-36-188.ap-northeast-1.compute.internal>
Co-authored-by: Hongzhi (Steve), Chen <chenhongzhi.nkcs@gmail.com>

* update

* Update

* Update

* Update

* Update
Co-authored-by: Ubuntu <ubuntu@ip-172-31-36-188.ap-northeast-1.compute.internal>

* Add SpatialEncoder and SpatialEncoder3d

* Optimize the code execution efficiency

* Fixed certain problems according to Dongyu's suggestions.

* Fix an error about probability of division by zero in PathEcoder; Change certain designs in SpatialEncoder

* Fix a typo

* polish the docstring

* fix doc

* lint
Co-authored-by: Ubuntu <ubuntu@ip-172-31-14-146.ap-northeast-1.compute.internal>
Co-authored-by: rudongyu <ru_dongyu@outlook.com>

* update

* lint

* lint

* comments
Co-authored-by: Ubuntu <ubuntu@ip-172-31-36-188.ap-northeast-1.compute.internal>

* Add GraphTransformerLayer (dense)

* beautify the python code with black

* refine according to mufei's comments

* fix AttributeError in unit test

* rename module as GraphormerLayer

* fix name issue
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

Co-authored-by: Xin Yao <xiny@nvidia.com>

* Add PathEncoder to transformer.py

* add blank line at the and

* rename variabl sp to shortest_path

* Fixed corresponding problems

* Fixed certain bugs when running on CUDA

* changed clamp min from 0 to 1
Co-authored-by: Ubuntu <ubuntu@ip-172-31-14-146.ap-northeast-1.compute.internal>
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Add biased multi-head attention module (dense)

* fix lint issues

* refine according to dongyu's comments
Co-authored-by: rudongyu <ru_dongyu@outlook.com>

* added relgraphconv

* add tests for CuGraphRelGraphConv

* move test to tests directory

* update docs

* address PR review 1

* address PR review, continued

* remove stashing ctx.device

* make fanout optional

* fanout -> max_in_degree

* improve docstrings consistency

* initialize parameters directly in __init__

* get rid of shared memory size check

* improve docs

* format comments

* skip test case for regularizer=None
Co-authored-by: Mufei Li <mufeili1996@gmail.com>
Co-authored-by: Hongzhi (Steve), Chen <chenhongzhi.nkcs@gmail.com>

* add ToLevi transform

* fix parameter typo

* fix lint issues

* fix device issue

* refine according to dongyu's comments
Co-authored-by: rudongyu <ru_dongyu@outlook.com>

rename DGLHeteroGraph to DGLGraph

* shortest dist

* update

* address issues

* update

* fix indent

* lint

* fix indent

* Add files via upload

This file will contain several utility modules for Graph Transformer. DegreeEncoder has been implemented in this file now.

* Update graph_transformer.py

* Update nn-pytorch.rst

Add graph_transformer.DegreeEncoder in Utility Modules

* Update test_nn.py

* Update __init__.py

* Update graph_transformer.py

* Update test_nn.py

* Update graph_transformer.py

fix unused import

* Update graph_transformer.py

add module doc-string

* Update graph_transformer.py

* Update graph_transformer.py
Co-authored-by: rudongyu <ru_dongyu@outlook.com>

* add save/load for distributed  optimizer
Co-authored-by: Ubuntu <ubuntu@ip-172-31-16-19.ap-northeast-1.compute.internal>

* add a learned laplacian positional encoder

* leverage black to beautify the python code

* refine according to dongyu's comments
Co-authored-by: rudongyu <ru_dongyu@outlook.com>

* [Model] Heterogeneous graph support for GNNExplainer (#1)

* add HeteroGNNExplainer

* GNNExplainer for heterogeenous graph

* fix typo

* variable name cleanup

* added HeteroGNNExplainer test

* added doc indexing for HeteroGNNExplainer

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update python/dgl/nn/pytorch/explain/gnnexplainer.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Update gnnexplainer.py

Change DGLHeteroGraph to DGLGraph, and specified parameter inputs

* Added ntype parameter to the explainer_node call

* responding to @mufeili's comment regarding restoring empty lines at appriopiate places to be consistent with existing practices

* responding to @mufeili's comment regarding restoring empty lines at appriopiate places that were missed in the last commit

* docstring comments added based on @mufeili suggestions

* indorporated @mufeili requested changes related to docstring model declaration.

* example model and test_nn.py added for explain_graphs

* explain_nodes fixed and fixed the way hetero num nodes and edges are handled

* white spaces removed

* lint issues fixed

* explain_graph model updated

* explain nodes model updated

* minor fixes related to gpu compatability

* cuda support added

* simplify WIP

* _init_masks for ennexplainer updated to match heterographs

* Update

* model simplified and docstring comments updated

* nits: docstring udpated

* lint check issues updated

* lint check updated

* soem formatting updated

* disabling int32 testing for GNNExplainer

* Update
Co-authored-by: Kangkook Jee <kangkook.jee@gmail.com>
Co-authored-by: ahadjawaid <94938815+ahadjawaid@users.noreply.github.com>
Co-authored-by: Mufei Li <mufeili1996@gmail.com>
Co-authored-by: kxm180046 <kxm180046@utdallas.edu>
Co-authored-by: Kunal Mukherjee <kunmukh@gmail.com>
Co-authored-by: Ubuntu <ubuntu@ip-172-31-9-26.ap-northeast-1.compute.internal>
Co-authored-by: Ubuntu <ubuntu@ip-172-31-36-188.ap-northeast-1.compute.internal>

* metapath2vec package

* fix bugs --metapath2vec package

* add unittest and fix bugs

* fix pyling messages

* del init.py

* fix bugs

* modify metapath2vec and add deepwalk

* metapath2vec module

* Update

* Update

* rollback to initial metapath2vec

* Update

* Update

* Update

* Update
Co-authored-by: Rhett Ying <85214957+Rhett-Ying@users.noreply.github.com>
Co-authored-by: Mufei Li <mufeili1996@gmail.com>
Co-authored-by: Ubuntu <ubuntu@ip-172-31-9-26.ap-northeast-1.compute.internal>

* add double radius node labeling

* add doc

* add test

* fix lint issue

* update

* update

* update

* update

* fix lint

* replace with pow

* autosummary for attributes

* revert accidental push

* revert accidental push

* added example
Co-authored-by: Israt Nisa <nisisrat@amazon.com>