Unsupervised Chunking Based on Graph Propagation from Bilingual Corpus

Table 1

Various features for computing edge weights between Chinese trigram types.

Description	Feature
Trigram + context	𝑥1𝑥2𝑥3𝑥4𝑥5
Trigram	𝑥2𝑥3𝑥4
Left context	𝑥1𝑥2
Right context	𝑥4𝑥5
Center word	𝑥3
Trigram − center word	𝑥2𝑥4
Left word + right context	𝑥2𝑥4𝑥5
Right word + left context	𝑥1𝑥2𝑥4
Suffix	Has suffix (𝑥3)
Prefix	Has prefix (𝑥3)