Unsupervised Quality Estimation Model for English to German Translation and Its Application in Extensive Supervised Evaluation

Table 1

Complementary German POS (as bold) mappings for Universal POS tagset.

Language

ADJ

ADP

ADV

CONJ

DET

NOUN

NUM

PRON

PRT

VERB

X

.

English; Penn Treebank; [28]

JJ; JJR; JJS

IN

RB; RBR; RBS; WRB

CC

DT; EX; PDT; WDT

NN; NNP; NNPS; NNS

CD

PRP; PRP$; WP; WP$

POS; RP; TO

MD; VB; VBD; VBG; VBN; VBP; VBZ

FW; LS; SYM; UH

#; $; ”; .; : -LRB-; -RRB-

German; Negra Treebank; [29]

ADJA; ADJD

APPO; APPR; APPRART; APZR

ADV; PWAV; PROAV

KOKOM; KON; KOUI; KOUS

ART; PIDAT; PWAT

NE; NN; NNE

CARD

PDAT; PDS; PIAT; PIS; PPER; PPOSAT; PPOSS; PRELAT; PRELS; PWS

PTKA; PTKANT; PTKNEG; PTKVZ; PTKZU; PRF

VAFIN; VAIMP; VAINF; VAPP; VMFIN; VMINF; VMPP; VVFIN; VVIMP; VVINF; VVIZU; VVPP

FM; ITJ; TRUNC; XY

$(; $,; $.; *TN*; $*LRB*