[PDF] Top 20 Travatar: A Forest to String Machine Translation Engine based on Tree Transducers

... to translation accuracy, we found that for translation that does not use syn- tactic information, improvements in alignment do not necessarily increase translation accuracy, as has been noted by ... See full document

... covered tree-to-tree transducers; we now turn to tree-to-string ...syntax-directed translation (Aho and Ullman 1971), and are used to specify compilers that (deter- ministically) ... See full document

... probabilistic forest-to-string gener- ation algorithm (Lu and Ng, 2011) and the work of Wong and Mooney (2006; 2007a; 2007b) and Wong (2007) that learn for semantic parsing with statistical machine ... See full document

... statistical machine translation fall under the theoretical framework of synchronous tree substitution grammars ...(STSGs). Tree substitution grammars (TSGs) generalize context-free grammars ... See full document

... crease translation quality because the systems be- come too ...synchronous tree-sequence substitu- tion grammars (STSSG) of Zhang et ...bottom-up tree transducer (MBOT) of Arnold and Dauchet (1982) ... See full document

... neural machine translation (NMT) approaches, although achieved im- pressive performance, suffer from a ma- jor drawback: they only use the 1- best parse tree to direct the translation, which ... See full document

... and translation are most often represented on the basis of input strings rather than ...of machine translation, let w be some in- put string to be ...a tree automaton M w that ... See full document

... models based on PCFGs can be learned from source-parsed bitext and then applied in the preprocessing ...the translation unit from phrases to tree-to-string align- ment templates (TATs) while ... See full document

... HPSG tree/forest, each leaf node generally introduces a predicate, which is represented by the pair of LEXENTRY (lexical entry) feature and PRED (predicate type) ...fast tree-to-string ...the ... See full document

... tion, reordering and translation rules, Nguyen et al. (2008) uses synchronous CFGs rules and Liu et al. (2006) uses TTs. Galley et al. (2006) also uses transducer rules but extract them from parse trees in target ... See full document

... a forest-based tree se- quence to string translation model for syntax- based statistical machine translation, which automatically learns tree sequence to ... See full document

... The string-to-tree system aug- mented with non-syntactic phrases applies more glue rules, but this is beneficial in the present example, as it breaks apart the faulty syntactic ... See full document

... corpus contains 5083 sentences, of which we used 4982 as training data, holding out 101 sentences for evaluation. The average Korean sentence length was 13 words. Korean is an agglutinative language, and words often ... See full document

... phrase- based SMT system, we produced results for the baseline systems that consisted of a hierarchical phrase-based SMT system, a string-to-tree syntax- based SMT system, a ... See full document

... ... See full document

... Neural Machine Transla- tion (NMT) show that adding syntactic infor- mation to NMT systems can improve the qual- ity of their ...inspired tree structures, like constituency and dependency parse ...arbitrary ... See full document

... New tree nodes need to have their own states in- dicated by a node label representing what is cov- ered internally by the node and an ancestor chain representing which nodes the node attaches to ex- ...A ... See full document

... combines translation systems which produce syntactic trees as ...generation tree and target- side SCFG tree are aligned and form the basis for computing structural similar- ...and based on ... See full document

... To speed up the decoder, we limit the search space by reducing the number of rules used for each cell. There are two ways to limit the rule table size: by a fixed limit a of how many rules are retrieved for each cell, ... See full document

... for string-to- tree machine ...the string-to-tree case, the rule selection problem must be ...French-English translation tasks for different domains has shown that rule se- ... See full document