NEW: Add SlideGraph Construction Method In Tools

[John-P]

Add classes and functions under tiatoolbox.tools.graph to enable construction of graphs in a format which can be used with PyG (PyTorch Geometric).

[codecov]

Codecov Report

Merging #155 (09c108f) into develop (333e20b) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head 09c108f differs from pull request most recent head b3fda91. Consider uploading reports for the commit b3fda91 to get more accurate results

@@            Coverage Diff            @@
##           develop     #155    +/-   ##
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  Coverage    99.78%   99.79%            
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  Files           46       47     +1     
  Lines         3780     3909   +129     
  Branches       621      646    +25     
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+ Hits          3772     3901   +129     
  Misses           2        2            
  Partials         6        6            

Impacted Files	Coverage Δ
tiatoolbox/tools/graph.py	100.00% <100.00%> (ø)

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[shaneahmed]

if it is just torch based graphs then please mention it.

[vqdang]

The idea is to expand this later to generic graph construction that we often use, not restricting to just torch. Ideally we would need to package the Graph as some data form and support .to_torch_geoemtry .to_networkx

[shaneahmed]

Thanks @John-P
It looks fine to me. Please make the suggested changes and we can merge. Please get it reviewed by @vqdang and @wenqi006 as well.

[vqdang]

Need clarification for functionalities. IMO there are some questionable points about the implementation but that can be dealt with later.

[wenqi006]

If we do want to make the graph contractor into an abstract class and have hybrid clustering as one concrete implementation

I do not think it is necessary. But you can go ahead to make the code neat.

[shaneahmed]

Thanks @John-P

[shaneahmed]

Thanks @John-P