Yes. This (tends to) scatter the vectors into many directions. On Tue, Apr 26, 2011 at 8:55 PM, Lance Norskog <[email protected]> wrote:
> Each dimension subtracts the mean of that dimension across all vectors? > > On 4/25/11, Ted Dunning <[email protected]> wrote: > > Yes. Mean subtraction would do the trick. > > > > On Mon, Apr 25, 2011 at 4:20 PM, Jake Mannix <[email protected]> > wrote: > > > >> > It may be that in practice that SVD will scatter data into many > >> > orthants, > >> > but I suspect it will not spread the data as widely as LSH assumptions > >> > would > >> > like. > >> > >> > >> Maybe you're right - raw SVD vs PCA (where the means are also subtracted > >> off) is probably the distinction to draw here. > > > > > -- > Lance Norskog > [email protected] >
