Corpora: IR info and tools

[Patrick Ruch]

Hi,

I am looking for a toolset -free or commercial- for calculating
vector distances (cosinus, euclid...). The target is an NLP-based
IR engine, and it must be efficient. Related stategies for choosing
the indexing terms are welcome.

Thanks in advance,
Patrick Ruch

__________________________________
Patrick Ruch
HUG - Medical Informatics Division
CH-1211 Geneva 14
tel.: (+41 22) 372 61 64
fax: (+41 22) 372 48 55
email: Patrick.Ruch at dim.hcuge.ch
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