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The best-fitting model spectra closely match both the observed spectral features and the overall continuum. The best-fit models reveal high extinction values (A_V = 10-20 mag), with M_* Mdot comparable to those of classical FUors such as FU Orionis. 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Episodic accretion in young stellar objects (YSOs) is thought to play a critical role in addressing the \"luminosity problem\" associated with star formation. However, optical surveys tend to bias against sources that are heavily obscured. Infrared time-domain surveys, such as unTimely WISE, facilitate the identification of such sources within the dense star formation regions of our Galaxy. Aims. We aim to systematically identify and characterize FUor outbursts in infrared-selected YSOs using high-resolution spectroscopy and detailed disk modeling. Methods. 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The best-fitting model spectra closely match both the observed spectral features and the overall continuum. The best-fit models reveal high extinction values (A_V = 10-20 mag), with M_* Mdot comparable to those of classical FUors such as FU Orionis. 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