The PDF document named "comparison results" contains the comparison results of the original AuxICA [1], the OverICA which is equivalent to OverIVA [2], and the proposed CTF-ICA in terms of SDR and SIR improvements.
[1] N. Ono and S. Miyabe, “Auxiliary-function-based independent component analysis for super-Gaussian sources,” in Proc. ICA, 2010, pp. 165--172.
[2] R. Scheibler and N. Ono, "Independent Vector Analysis with More Microphones Than Sources," in Proc. IEEE WASPAA, 2019, pp. 185--189.