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License: MIT License
Python RETE algorithm
License: MIT License
In file ncc_node.py
, line 65:
Token.delete_token_and_descendents(token)
should actually be Token.delete_descendents_of_token(token)
.
This function is explained in [Doorenbos 1995] section 2.8 (p.49). The pseudo-code is in p.158 of Appendix A.
Just add this function in Python, under class Token
, in common.py
:
@classmethod
def delete_descendents_of_token(cls, t):
"""
:type t: Token
"""
while t.children != []:
cls.delete_token_and_descendents(t.children[0])
When the bug is not fixed, we get some errors when an NCC Partner node tries to delete tokens and complains that the tokens are not in the list.
Let's say if we have this condition:
c1 = Has('A', '$x', '$x')
and the following WMEs:
WME('A', '0', '2'),
WME('A', '1', '1').
The condition should be satisfied only by the second WME, but not the first.
However, Naive-Rete seems to activate both conditions.
In file common.py
, line 217:
jr.wme.negative_join_results.remove(jr)
there is an extra s
in the function name. It should be negative_join_result
.
Hi: what would be the license for this repo?
Thanks!
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