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Simpler returns

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J Alan Brogan
2012-10-26 18:20:26 +01:00
parent 331b1ad3eb
commit feae97a988
2 changed files with 8 additions and 20 deletions
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2
README.md
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@ -6,3 +6,5 @@ An implementation of the [Douglas Hofstadter](http://prelectur.stanford.edu/lect
This implementation is a copycat of Scott Boland's [Java implementation](http://itee.uq.edu.au/~scottb/_Copycat/), but re-written into Python. It's not a direct translation - but based on his code. I did not carry over the GUI, as this version can more usefully be run from command line, or imported for use by other Python scripts.
In cases where I could not grok the Java implementation easily or directly I took ideas from the [LISP implementation](http://web.cecs.pdx.edu/~mm/how-to-get-copycat.html), or directly from [Melanie Mitchell](https://en.wikipedia.org/wiki/Melanie_Mitchell)'s "[Analogy-Making as Perception](http://www.amazon.com/Analogy-Making-Perception-Computer-Melanie-Mitchell/dp/0262132893/ref=tmm_hrd_title_0?ie=UTF8&qid=1351269085&sr=1-3)"
I also tried to make the code more pythonic.

26
copycat/conceptMapping.py
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@ -16,9 +16,7 @@ class ConceptMapping(object):
return '<ConceptMapping: %s from %s to %s>' % (self.__str__(), self.initialDescriptor, self.targetDescriptor)
def __str__(self):
if self.label:
return self.label.name
return 'anonymous'
return self.label and self.label.name or 'anonymous'
def slipability(self):
association = self.__degreeOfAssociation()
@ -51,9 +49,7 @@ class ConceptMapping(object):
return False
if not self.initialObject.distinguishingDescriptor(self.initialDescriptor):
return False
if not self.targetObject.distinguishingDescriptor(self.targetDescriptor):
return False
return True
return self.targetObject.distinguishingDescriptor(self.targetDescriptor)
def sameInitialType(self, other):
return self.initialDescriptionType == other.initialDescriptionType
@ -80,16 +76,10 @@ class ConceptMapping(object):
return self.sameTypes(other) and self.sameInitialDescriptor(other)
def isContainedBy(self, mappings):
for mapping in mappings:
if self.sameKind(mapping):
return True
return False
return any([self.sameKind(mapping) for mapping in mappings])
def isNearlyContainedBy(self, mappings):
for mapping in mappings:
if self.nearlySameKind(mapping):
return True
return False
return any([self.nearlySameKind(mapping) for mapping in mappings])
def related(self, other):
if self.initialDescriptor.related(other.initialDescriptor):
@ -108,9 +98,7 @@ class ConceptMapping(object):
return False
if not self.label or not other.label:
return False
if self.label != other.label:
return True
return False
return self.label != other.label
def supports(self, other):
# Concept-mappings (a -> b) and (c -> d) support each other if a is related
@ -130,9 +118,7 @@ class ConceptMapping(object):
return False
if not self.label or not other.label:
return False
if self.label == other.label:
return True
return False
return self.label == other.label
def relevant(self):
return self.initialDescriptionType.fully_active() and self.targetDescriptionType.fully_active()