... resorting to heuris-tics such as minimality of rules, and leading to 1Throughout the paper we will use the word STSG to re-fer to the tree -to- tree version of the formalism, although thestring -to- tree ... fortheir judgments of GS, EM, and SVM output sen-tences and the gold standard in terms of grammat-icality (how fluent the compression is) and impor-tance (how much of the meaning of and impor-tant ... count of rulec → e, and K is the total number of ways to rewrite c, we now take into account ourDP(αc, P0(· | c)) prior in (1), which, whentruncated to a finite grammar, reduces to aK-dimensional...