Machine translation systems and quality assessment: a systematic review
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AutorRivera Trigueros, Irene
EvaluationMachine translationSystematic reviewQuality
Rivera-Trigueros, I. Machine translation systems and quality assessment: a systematic review. Lang Resources & Evaluation (2021). [https://doi.org/10.1007/s10579-021-09537-5]
PatrocinadorSpanish Ministry of Science, Innovation and Universities (MCIU) RTI2018-093348-B-I00 FPU17/00667; Spanish State Research Agency (AEI) RTI2018-093348-B-I00; European Commission RTI2018-093348-B-I00
Nowadays, in the globalised context in which we find ourselves, language barriers can still be an obstacle to accessing information. On occasions, it is impossible to satisfy the demand for translation by relying only in human translators, therefore, tools such as Machine Translation (MT) are gaining popularity due to their potential to overcome this problem. Consequently, research in this field is constantly growing and new MT paradigms are emerging. In this paper, a systematic literature review has been carried out in order to identify what MT systems are currently most employed, their architecture, the quality assessment procedures applied to determine how they work, and which of these systems offer the best results. The study is focused on the specialised literature produced by translation experts, linguists, and specialists in related fields that include the English-Spanish language combination. Research findings show that neural MT is the predominant paradigm in the current MT scenario, being Google Translator the most used system. Moreover, most of the analysed works used one type of evaluation-either automatic or human-to assess machine translation and only 22% of the works combined these two types of evaluation. However, more than a half of the works included error classification and analysis, an essential aspect for identifying flaws and improving the performance of MT systems.