Abstract In this work, Portuguese, Polish, English, Urdu, and Arabic automatic speech
recognition evaluation systems developed by the RWTH Aachen University are presented …

In this paper the RWTH large vocabulary continuous speech recognition (LVCSR) systems
developed for the IWSLT-2016 evaluation campaign are described. This evaluation …

By definition, words that are not present in a recognition vocabulary are called out-of-
vocabulary (OOV) words. Recognition of unseen or new words is an important feature that is …

Discriminative training has been established as an effective technique for training the
acoustic model of an automatic speech recognition system. It reduces the word error rate as …

The task of an automatic speech recognition system is to convert speech signals into written
text by choosing the recognition result according to a statistical decision rule. The …

Conventional speech recognition systems consist of feature extraction, acoustic and
language modeling blocks, and search block. In a recent trend the traditional modeling …