def prob_of_transition(transition, counts):
top = serialize_tags(transition)
count_top = counts[top]
bottom = serialize_tags(transition[:-1])
count_bottom = counts[bottom]
prob = float(count_top) / count_bottom
return prob
def prob_of_transition(transition, counts):
top = serialize_tags(transition)
count_top = counts[top]
bottom = serialize_tags(transition[:-1])
count_bottom = counts[bottom]
prob = float(count_top) / count_bottom
return prob
def store_transitions(tags):
if not hasattr(store_transitions, '_counts'):
store_transitions._counts = dict(START=0)
store_transitions._counts['START'] += 1
for a_chunk_size in range(1, 4):
for set_of_tags in sets_of_tags(tags, chunk_size=min(a_chunk_size, len(tags))):
serialized = serialize_tags(set_of_tags)
store_transitions._counts.setdefault(serialized, 0)
store_transitions._counts[serialized] += 1
def store_transitions(tags):
if not hasattr(store_transitions, '_counts'):
store_transitions._counts = dict(START=0)
store_transitions._counts['START'] += 1
for a_chunk_size in range(1, 4):
for set_of_tags in sets_of_tags(tags,
chunk_size=min(a_chunk_size,
len(tags))):
serialized = serialize_tags(set_of_tags)
store_transitions._counts.setdefault(serialized, 0)
store_transitions._counts[serialized] += 1
