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module Lib
module DatasetCache
@@cache={}
# same as OpenTox::Dataset.find with caching function
# rational: datasets are reused in crossvalidation very often, cache to save computational effort
# PENDING: may cause memory issues, test with huge datasets
def self.find(dataset_uri, subjectid=nil)
return nil if (dataset_uri==nil)
d = @@cache[dataset_uri.to_s+"_"+subjectid.to_s]
if d==nil
d = OpenTox::Dataset.find(dataset_uri, subjectid)
@@cache[dataset_uri.to_s+"_"+subjectid.to_s] = d
end
d
end
end
end
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