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About this paper

Alkis Koudounas, Osamu Take, Hayato Futami, Quentin Jodelet, Emiru Tsunoo

Walrus uses a three-stage data curriculum to train a speech-and-audio model while keeping the Gemma 4 backbone unchanged. Task and dataset weights balance recognition with other tasks. On the CS-FLEURS Read evaluation, Walrus-R achieves a character error rate of 7.23 versus 32.30 for Gemma 4. These results support the recipe but do not isolate the effects of individual changes.

Summary by alphaXiv.

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