Normalize Date Expressions before classification

[marfox]

Lots of FEs are dates:

• absolute, e.g., May 2008
• relative, e.g., the previous season
• interval, e.g., from 2008 to 2015

[Warun26]

Hi @marfox ,
I think the link to the CFG is not working. Also, just out of curiosity, I wanted to know what advantages CFGs offer over rule based systems such as SUTime(used in stanfordNLP). I am guessing there will be a lot of rules when we consider different languages but is that the only disadvantage?

Thanks in advance.
Varun

[marfox]

Sorry for the broken link @Warun26 , the grammar has moved to a new module in the meanwhile. It should be fixed now.
CFG is a rule-based system, and as such behaves the same as SUTime.
In addition, it also allows for recursive rules, and I'm not sure if this is possible with SUTime, is it?

[Warun26]

SUTime does not support recursive rules. It just applies basic regex rules over tokens to extract temporal data. Thanks for the information! :-)

[marfox]

Should implement the behavior in #47