--21--
c. The probabilities associated with NS, NO, and DV
are used to determine whether words should be selected
from these dependent types. For each dependent type, the
random number generator is called to generate a number
ranging from 1 to i00. If the random number is greater
than the probability associated with the dependent type,
the type is ignored. Otherwise a word will be selected
from this type. Let us assume that all three types have
passed the probability test.
d.l. A noun is to be selected as the subject of verb
3336. If the sentence to be generated is the first sen-
tence of a paragraph, a noun which is in the dependent
list associated with the verb 3336 and also a member of
C16 is chosen. However, if the sentence is a noninitial
one, the procedure CRITERIA is called to form a probability
reweighting table on the basis of the criteria applicable
to the verb 3336 and to this local structure (i.e., a
VT dominates an NS). All candidates (those words which
belong to C16 and which are in the dependent list associa-
ted with 3336) are first assigned an equal weight. Then
the probability reweighting table is used to adjust the
weights of the candidates. Fig. 4(b) shows the candidates
for the node NS. An individual word is ~andomly chosen
from the candidates based on their different weights:
word number 2625 whose internal address is 317.
