My ISDE work may not be original. In fact, Weinberger himself appears to have derived an incremental extension to it. However, for some reason this work was never published.

I’m not completely sure whether this is truly an incremental algorithm, however. The code’s very messy and it’s difficult to untangle what’s going on, but it seems that the algorithm relies on information about the whole dataset, which must be passed to the function.

If that is the case, I may continue with my work. If not, I may have to cease working on it, or at least attempt to show that mine is somehow better (which it might not be).