Shallow syntactic parser based on extended CFG and GLR algorithm

In this paper, a shallow syntactic parser which based on extended context free grammar (CFG) and generalized LR (GLR) algorithm is presented. In developing our MatLink English-Chinese machine translation system, we extended CFG to describe the syntactic structure of chunks, and designed a corresponding parsing algorithm based on GLR algorithm to implement shallow syntactic parsing. The parser can automatically recognize the boundaries of chunks and produce their syntactic parsing trees. Results of contrastive experiments show that the shallow syntactic parser is much more efficient in translation correct rate.