If I see correctly, this is essentially an online version of Halko's algorithm for truncated SVD, applied to the domain of anomaly detection? (with some cool ad

If I see correctly, this is essentially an online version of Halko's algorithm for truncated SVD, applied to the domain of anomaly detection? (with some cool additional error analysis) If so, there has been an efficient implementation for this in the gensim library for a couple of years. Would be interesting to see a direct comparison.