Interesting topic, Ted, can you give examples of those mathematical assumptions under-pinning ALS which are violated by the real world?
On Thu, Mar 27, 2014 at 3:43 PM, Ted Dunning <[email protected]> wrote: > How can there be any other practical method? Essentially all of the > mathematical assumptions under-pinning ALS are violated by the real world. > Why would any mathematical consideration of the number of features be much > more than heuristic? > > That said, you can make an information content argument. You can also make > the argument that if you take too many features, it doesn't much hurt so > you should always take as many as you can compute. > > > > On Thu, Mar 27, 2014 at 6:33 AM, Sebastian Schelter <[email protected]> wrote: > >> Hi, >> >> does anyone know of a principled approach of choosing the number of >> features for ALS (other than cross-validation?) >> >> --sebastian >>
