Hi everyone,
I'm experiencing some odd behaviour that I cannot justify so I thought
someone smarter can help here...
I'm reading in a file with 39,7226 lines, each one containing a
token-tag pair (e.g. The/DET). This gives me 39,7226 fully-realized
TokenTagPair objects (records-> TokenTagPair{:token "The", :tag "DET"}).
Let's call them 'tt-pairs'. Now, I've got a function that takes n-grams
from a seq lazily. If I first extract all the tags and pass them to
ngrams then all is fine:
(def tags (mapv :tag tt-pairs)) ;;all the 39,7226 tags
(def ntags (doall (ngrams* tags 2))) ;;returns quickly
=> (last ntags)
("N" "P")
* HOWEVER,*
(def ntt-pairs (doall (ngrams* tt-pairs 2))) ;hangs forever!
one of my cpus is busy but nothing happens!!! How is this justified?
_both collections are of the same size and I'm performing the same
operation on them_...
the only difference is that 'tags' contains String objects whereas
'tt-pairs' contains TokenTagPair objects... weird stuff, yes?
any ideas anyone?
Jim
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