def __init__(self, leftInventory = None, rightInventory = None):
self.leftInventory = leftInventory
self.rightInventory = rightInventory
if not self.leftInventory:
self.leftInventory = SymbolInventory()
if not self.rightInventory:
self.rightInventory = SymbolInventory()
self.inventory = MultigramInventory()
self.term = self.inventory.index(
((self.leftInventory.term,), (self.rightInventory.term,)))
def __init__(self, leftInventory=None, rightInventory=None):
self.leftInventory = leftInventory
self.rightInventory = rightInventory
if not self.leftInventory:
self.leftInventory = SymbolInventory()
if not self.rightInventory:
self.rightInventory = SymbolInventory()
self.inventory = MultigramInventory()
self.term = self.inventory.index(
((self.leftInventory.term, ), (self.rightInventory.term, )))
class Sequitur:
"""
Multigram / sequence model tokens / indices: 0 (zero) indicates
VOID, and is only used internally as a sentinel. term is the index
of the (term,term) multigram which is the end-of-string token.
(Also used as begin-of-string token.)
"""
def __init__(self, leftInventory = None, rightInventory = None):
self.leftInventory = leftInventory
self.rightInventory = rightInventory
if not self.leftInventory:
self.leftInventory = SymbolInventory()
if not self.rightInventory:
self.rightInventory = SymbolInventory()
self.inventory = MultigramInventory()
self.term = self.inventory.index(
((self.leftInventory.term,), (self.rightInventory.term,)))
def compileSample(self, sample):
return [
(self.leftInventory.parse(left),
self.rightInventory.parse(right))
for left, right in sample ]
def symbol(self, i):
"multigramFromTokenIndex"
l, r = self.inventory.symbol(i)
l = self.leftInventory.format(l)
r = self.rightInventory.format(r)
return (l, r)
def symbols(self):
return [ self.symbol(i) for i in range(1, self.inventory.size() + 1) ]
def index(self, left, right):
"tokenIndexFromMultigram"
left = self.leftInventory.parse(left)
right = self.rightInventory.parse(right)
return self.inventory.index((left, right))
def makeStringInventory(self):
result = []
for i in range(1, self.inventory.size() + 1):
result.append('%s:%s' % self.symbol(i))
return sequitur_.StringInventory(result)
