A Web-Deployed Swedish Spoken CALL System Based on a Large Shared English/Swedish Feature Grammar
Manny Rayner, Johanna Gerlach, Marianne Starlander, Nikos Tsourakis, Anita Kruckenberg, Robert Eklund, Arne Jönsson, Anita M. McAllister, Cathy Chua · 2012
We describe a Swedish version of CALL-SLT,a web-deployed CALL system that allows beginner/intermediate students to practise generativespoken language skills. Speech recognitionis grammar-based, with language modelsderived, using the Regulus platform, fromsubstantial domain-independent feature grammars.The paper focusses on the Swedishgrammar resources, which were developedby generalising the existing English featuregrammar into a shared grammar for Englishand Swedish. It turns out that this can be donevery economically: all but a handful of rulesand features are shared, and English grammaressentially ends up being treated as a reducedform of Swedish. We conclude by presentinga simple evaluation which compares theSwedish and French versions of CALL-SLT.