Syntax-based Statistical Machine Translation

Syntax-based Statistical Machine Translation

EnglishEbook
Williams, Philip
Springer International Publishing
EAN: 9783031021640
Available online
CZK 1,385
Common price CZK 1,539
Discount 10%
pc

Detailed information

This unique book provides a comprehensive introduction to the most popular syntax-based statistical machine translation models, filling a gap in the current literature for researchers and developers in human language technologies. While phrase-based models have previously dominated the field, syntax-based approaches have proved a popular alternative, as they elegantly solve many of the shortcomings of phrase-based models. The heart of this book is a detailed introduction to decoding for syntax-based models. The book begins with an overview of synchronous-context free grammar (SCFG) and synchronous tree-substitution grammar (STSG) along with their associated statistical models. It also describes how three popular instantiations (Hiero, SAMT, and GHKM) are learned from parallel corpora. It introduces and details hypergraphs and associated general algorithms, as well as algorithms for decoding with both tree and string input. Special attention is given to efficiency, includingsearch approximations such as beam search and cube pruning, data structures, and parsing algorithms. The book consistently highlights the strengths (and limitations) of syntax-based approaches, including their ability to generalize phrase-based translation units, their modeling of specific linguistic phenomena, and their function of structuring the search space.
EAN 9783031021640
ISBN 3031021649
Binding Ebook
Publisher Springer International Publishing
Publication date May 31, 2022
Language English
Authors Koehn, Philipp; Post, Matt; Sennrich, Rico; Williams, Philip
Series Synthesis Lectures on Human Language Technologies