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JamesHe1990 / cleartk

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lexical function tree kernels do not implement lambda correctly #414

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
The lambda parameter for a tree kernel typically limits the weight of very 
large structures by discounting the number of common subtrees to a value 
between 0 and 1. The new feature of allowing partial matches of lexical items 
needs to be multiplied by lambda to be correct in practice. This was missed in 
testing by only using lambda=1.0. New tests will check for case where lambda != 
1.0.

Original issue reported on code.google.com by tim.mil...@gmail.com on 3 Feb 2015 at 7:53

GoogleCodeExporter commented 9 years ago

Original comment by tim.mil...@gmail.com on 3 Feb 2015 at 8:23