def __init__(self, grammar=None, alphabet_size=2, **kwargs):
SimpleLexicon.__init__(self, **kwargs)
self.grammar = grammar # the base gramar (with 0 included); we copy and add in other recursions on self.deepen()
self.N = 0 # the number of meanings we have
self.max_total_calls = MAX_SELF_RECURSION # this is the most internal recurse_ calls we can do without raising an exception It gets increased every deepen(). NOTE: if this is small, then it bounds the length of each string
self.total_calls = 0
self.alphabet_size = alphabet_size
def __init__(self, N=4, grammar=None, argument_type='FUNCTION', variable_weight=2.0, value=None, **kwargs):
SimpleLexicon.__init__(self, value=value)
self.N = N
if grammar is not None: # else we are in a copy initializer, and the rest will get copied
for w in xrange(N):
nthgrammar = deepcopy(grammar)
# Add all the bound variables
args = [ ]
for xi in xrange(w): # no first argument
argi = 'x%s'%xi
# Add a rule for the variable
nthgrammar.add_rule(argument_type, argi, None, variable_weight)
args.append(argi)
# and add a rule for the n-ary recursion
nthgrammar.add_rule('LIST', 'recurse_', ['FUNCTION']*(w), 1.)
# we wrap the content with lambda to make it callable for next recursion level
nthgrammar.add_rule('FUNCTION', 'lambda', ['LIST'], 1.)
nthgrammar.add_rule('LIST', '(%s)()', ['FUNCTION'], 1.)
self.set_word(w, self.make_hypothesis(grammar=nthgrammar, args=args))
def __init__(self, grammar=None, alphabet_size=2, **kwargs):
SimpleLexicon.__init__(self, **kwargs)
self.grammar=grammar # the base gramar (with 0 included); we copy and add in other recursions on self.deepen()
self.N = 0 # the number of meanings we have
self.max_total_calls = MAX_SELF_RECURSION # this is the most internal recurse_ calls we can do without raising an exception It gets increased every deepen(). NOTE: if this is small, then it bounds the length of each string
self.total_calls = 0
self.alphabet_size = alphabet_size
def __init__(self,
N=4,
grammar=None,
argument_type='LIST',
variable_weight=2.0,
value=None,
**kwargs):
SimpleLexicon.__init__(self, value=value)
self.N = N
if grammar is not None: # else we are in a copy initializer, and the rest will get copied
for w in xrange(N):
nthgrammar = deepcopy(grammar)
# Add all the bound variables
args = []
for xi in xrange(w): # no first argument
argi = 'x%s' % xi
# Add a rule for the variable
nthgrammar.add_rule(argument_type, argi, None,
variable_weight)
args.append(argi)
# and add a rule for the n-ary recursion
nthgrammar.add_rule('LIST', 'recurse_', [argument_type] * (w),
1.)
self.set_word(
w, self.make_hypothesis(grammar=nthgrammar, args=args))
def __init__(self, grammar=None, **kwargs):
SimpleLexicon.__init__(self, maxnodes=50, **kwargs)
self.grammar=grammar # the base gramar (with 0 included); we copy and add in other recursions on self.deepen()
self.N = 0 # the number of meanings we have
# self.outlier = -1000.0 # read in MultinomialLikelihood
self.max_total_calls = 10 # this is the most internal recurse_ calls we can do without raising an exception It gets increased every deepen()
self.total_calls = 0
self.distance = 100.0 # penalize
def __init__(self, N=4, grammar=None, argument_type='FUNCTION', variable_weight=2.0, value=None, recurse_bound=25, **kwargs):
SimpleLexicon.__init__(self, value=value)
self.base_grammar = deepcopy(grammar)
self.argument_type = argument_type
self.variable_weight = variable_weight
self.recurse_bound = recurse_bound
self.recursive_call_depth = 0
if grammar is not None: # else we are in a copy initializer, and the rest will get copied
self.N = 0
for w in xrange(N):
self.add_new_word()
def __init__(self,
N=4,
grammar=None,
argument_type='FUNCTION',
variable_weight=2.0,
value=None,
recurse_bound=25,
**kwargs):
SimpleLexicon.__init__(self, value=value)
self.base_grammar = deepcopy(grammar)
self.argument_type = argument_type
self.variable_weight = variable_weight
self.recurse_bound = recurse_bound
self.recursive_call_depth = 0
if grammar is not None: # else we are in a copy initializer, and the rest will get copied
self.N = 0
for w in xrange(N):
self.add_new_word()
def compute_prior(self):
"""
Assign 0-probability to hypotheses with repeat values.
BUT we only discover repeat values by reducing.
"""
seen = set()
for k,v in self.value.items():
try:
reduced = str(lambda_reduce(v.value))
except EvaluationException:
return -Infinity
if reduced in seen:
return -Infinity
else:
seen.add(reduced)
return SimpleLexicon.compute_prior(self)
def compute_prior(self):
"""
Assign 0-probability to hypotheses with repeat values.
BUT we only discover repeat values by reducing.
"""
seen = set()
for k, v in self.value.items():
try:
reduced = str(lambda_reduce(v.value))
except EvaluationException:
return -Infinity
if reduced in seen:
return -Infinity
else:
seen.add(reduced)
return SimpleLexicon.compute_prior(self)
def compute_prior(self):
return SimpleLexicon.compute_prior(self) - self.N * log(2.0)/self.prior_temperature # coin flip for each additional word
def __init__(self, alpha=0.99, **kwargs):
self.alpha = alpha
SimpleLexicon.__init__(self, **kwargs)
def __init__(self, alpha=0.99, **kwargs):
self.alpha = alpha
SimpleLexicon.__init__(self, **kwargs)
def compute_prior(self):
return SimpleLexicon.compute_prior(self) - self.N * log(
2.0) / self.prior_temperature # coin flip for each additional word