Dialect-swiss-german Flashcards
what are some peculiarities of swiss german?
Swiss German differs significantly from standard German in pronunciation, word inventory and grammar. It is mostly incomprehensible to native German speakers. Moreover, it lacks a standardized written script.
Does speech recognition surpass human performance?
Yes Xiong et al., 2016 but nor on dialects it still represents a major challenge.
What is the task that Oscar team performed in their Swiss German language work?
The process of transcribing Swiss German into high German text therefore requires speech recognition with an inherent translation step. Moreover, the task can be considered low-resource as available data remains extremely scarce.
What do thy change in the lexicon?
propose to incorporate the translation from Swiss German to standard German as part of the lexicon. However, this leads to a complex and often ambiguous mapping from phoneme to grapheme sequences, which is very different from languages with a direct relation between writing scheme and pronunciation
how do they build the lexicon?
construct the lexicon in several stages.
In a first step, we make use of parallel corpora encompassing Swiss and standard German annotations to extract word mappings between Swiss and standard German.
In a second step, a standard German graphemes to phonemes (G2P) model is applied to convert Swiss German transliterations into corresponding phone sequences.
This results in a dictionary that maps standard German words to Swiss pronunciations. Jointly with existing Swiss German lexicon resources (Schmidt et al., 2020), the previously generated mappings are then used to train a dedicated Swiss German G2P model.
What are Grapheme-to-phoneme (g2p) models ?
Grapheme-to-phoneme (g2p) models convert words into pronunciations, and are ubiquitous in speech- and text-processing systems.
