diff options
Diffstat (limited to 'validation/validation_application.rb')
-rwxr-xr-x | validation/validation_application.rb | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/validation/validation_application.rb b/validation/validation_application.rb index d2dfef0..7e0e10f 100755 --- a/validation/validation_application.rb +++ b/validation/validation_application.rb @@ -8,6 +8,12 @@ require 'validation/validation_service.rb' get '/crossvalidation/?' do LOGGER.info "list all crossvalidations" + model_uri = params.delete("model") || params.delete("model_uri") + if model_uri + model = OpenTox::Model::Generic.find(model_uri, @subjectid) + params[:algorithm] = model.metadata[OT.algorithm] + params[:dataset] = model.metadata[OT.trainingDataset] + end uri_list = Lib::OhmUtil.find( Validation::Crossvalidation, params ).sort.collect{|v| v.crossvalidation_uri}.join("\n") + "\n" if request.env['HTTP_ACCEPT'] =~ /text\/html/ related_links = @@ -400,7 +406,14 @@ get '/bootstrapping' do "All validations: "+url_for("/",:full)+"\n"+ "Validation reports: "+url_for("/report/validation",:full) description = - "A list of all bootstrapping-validations.\n"+ + "A list of all bootstrapping-validations.\n\n"+ + "Bootstrapping performs sampling with replacement to create a training dataset and test dataset from the orignial dataset.\n"+ + "Subsequently, a model is built with the training dataset and validated on the test-dataset.\n\n"+ + "Quote from R Kohavi - A study of cross-validation and bootstrap for accuracy estimation and model selection,\n"+ + "International joint Conference on artificial intelligence, 1995:\n"+ + "'Given a dataset of size n, a bootstrap sample is created by sampling n instances uniformly from the data (with replacement).\n"+ + " Since the dataset is sampled with replacement, the probability of any given instance not being chosen after n samples is (1 - 1/n)^n = e^-1 = 0.368;\n"+ + " the expected number of distinct instances from the original dataset appearing in the test set is thus 0.632n.'\n\n"+ "To perform a bootstrapping-validation use the POST method." post_command = OpenTox::PostCommand.new request.url,"Perform bootstrapping-validation" post_command.attributes << OpenTox::PostAttribute.new("algorithm_uri") |