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Added alternative slogdet to return sign and logdet of det op #1041

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Added alternative slogdet to return sign and logdet of det op #1041

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tanish1729
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@tanish1729 tanish1729 commented Oct 19, 2024 •
edited by ricardoV94
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Description

Changing slogdet so that we are able to use the rewrites made for Det

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Type of change

  • New feature / enhancement
  • Bug fix
  • Documentation
  • Maintenance
  • Other (please specify):

📚 Documentation preview 📚: https://pytensor--1041.org.readthedocs.build/en/1041/

ricardoV94
ricardoV94 reviewed Oct 19, 2024
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We'll need a specialization rewrite that introduces slogdet as a replacement for log(abs(det(x))) and its sign.

I guess we can also do it without the abs.

This should be before we remove useless Blockwise.

pytensor/tensor/rewriting/linalg.py Outdated
# @register_canonicalize
# @register_stabilize
# @node_rewriter([slogdet])
# def rewrite_slogdet_kronecker(fgraph, node):
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We had no det Kronecker rewrite?

@tanish1729 tanish1729 mentioned this pull request Oct 19, 2024
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Optimizations for Det should also apply to SlogDet
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