Selectional Preferences III
The Selectional Association between a verb and a class is defined as the proportion that this classe’s contribution to S(v) contributes to the overall preference strength S(v).
There is also a rule for assigning association strengths to nouns as opposed to noun classes. If a noun is in a single class, then its association strength is that of its class. If it belongs to several classes, then its association strength is that of the class it belongs to that has the highest association strength.
Finally, there is a rule for estimating the probability that a direct object in noun class c occurs given a verb v.