From 89bc8a67e63cf8e752f3b89aa52f7db87ce7ea7f Mon Sep 17 00:00:00 2001
From: Christoph Helma <helma@in-silico.de>
Date: Sun, 20 Dec 2009 19:16:25 +0100
Subject: model adapted to OWL-DL, dataset predictions added

---
 lib/algorithm.rb | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'lib/algorithm.rb')

diff --git a/lib/algorithm.rb b/lib/algorithm.rb
index a32a462..7fe08fa 100644
--- a/lib/algorithm.rb
+++ b/lib/algorithm.rb
@@ -14,6 +14,10 @@ module OpenTox
 					"Feature URI for dependent variable" => { :scope => "mandatory", :value => "feature_uri" }
 				}
 			end
+
+			def self.create_feature_dataset(params)
+				RestClient.post params[:feature_generation_uri], :dataset_uri => params[:dataset_uri], :feature_uri => params[:feature_uri] 
+			end
 		end
 
 		class Lazar #< OpenTox
@@ -35,5 +39,23 @@ module OpenTox
 			end
 		end
 
+		class Similarity
+
+			def self.weighted_tanimoto(fp_a,fp_b,p)
+				common_features = fp_a & fp_b
+				all_features = fp_a + fp_b
+				common_p_sum = 0.0
+				if common_features.size > 0
+					common_features.each{|f| common_p_sum += p[f]}
+					all_p_sum = 0.0
+					all_features.each{|f| all_p_sum += p[f]}
+					common_p_sum/all_p_sum
+				else
+					0.0
+				end
+			end
+
+		end
+
 	end
 end
-- 
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