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Formosan languages, spoken by the indigenous peoples of Taiwan, have unique roles in the reconstruction of Proto-Austronesian Languages. This paper presents a real-world Formosan language speech dataset, including 144 h of news footage for 16 Formosan languages, and uses self-supervised models to obtain and analyze their speech representations. Among the news footage, 13 h of the validated speech data of Formosan languages are selected, and a language classifier, based on XLSR-53, is trained to classify the 16 Formosan languages with an accuracy of 86%. We extracted and analyzed the speech vector representations learned from the model and compared them with 152 manually coded linguistic typological features. The comparison shows that the speech vectors reflect Formosan languages' phonological and morphological aspects. Furthermore, the speech vectors and linguistic features are used to construct a linguistic phylogeny, and the resulting genealogical grouping corresponds with previous literature. These results suggest that we can investigate the current real-world language usages through the speech model, and the dataset opens a window to look into the Formosan languages in vivo. [ABSTRACT FROM AUTHOR]

Since the late 1980s, Taiwan has moved away from Mandarin-only language policy in favour of greater recognition of local Taiwanese languages as part of a greater localisation movement. While continuing to implement language policies aimed at promoting local Taiwanese languages, in December 2018, Taiwan announced intent to implement a bilingual language policy to incorporate English by 2030, titled Bilingual Nation. Applying Ball's (1993) policy as discourse framework, this paper endeavours to investigate the Bilingual Nation policy planning and rhetoric so as to shed light on Taiwan's official conceptualisation of national identity. The case study finds that English is the primary focus of Bilingual Nation policy documents and is relegated to the discursive arenas of internationalisation and global economic competition. English is rarely discussed in tandem with any other specific language or language category, with little consideration for the interaction of English and Taiwan's official national languages. In sum, Bilingual Nation acts as an affirmation of the current status quo in Taiwan's official conception of national identity: muddled, with the assumption of Mandarin at its centre. Questions remain for Bilingual Nation and its ability to push beyond a symbolic state effort for internationalisation or unproductive labours for international status. [ABSTRACT FROM AUTHOR]