Hi, just was working with this and found this . The javadoc says
* Encodes a categorical values with an unbounded vocabulary. Values are encoding by incrementing a * few locations in the output vector with a weight that is either defaulted to 1 or that is looked * up in a weight dictionary. By default, _only one probe is used_ which i immediately suspected was not true cause it doesn't make a lot of default sense for unbounded categories. Indeed, checking the code seems to indicate that by default 2 probes are used for unbounded category encoding. Just wanted to confirm, it is indeed should be 2 probes by default, right? -d
