diff options
Diffstat (limited to 'lib/algorithm/neighbors.rb')
| -rw-r--r-- | lib/algorithm/neighbors.rb | 80 |
1 files changed, 35 insertions, 45 deletions
diff --git a/lib/algorithm/neighbors.rb b/lib/algorithm/neighbors.rb index cdfc5b7..1a82dc8 100644 --- a/lib/algorithm/neighbors.rb +++ b/lib/algorithm/neighbors.rb @@ -69,29 +69,24 @@ module OpenTox # @return [Numeric] A prediction value. def self.local_svm_regression(params) - begin - confidence = 0.0 - prediction = nil - - $logger.debug "Local SVM." - if params[:acts].size>0 - if params[:props] - n_prop = params[:props][0].collect.to_a - q_prop = params[:props][1].collect.to_a - props = [ n_prop, q_prop ] - end - acts = params[:acts].collect.to_a - prediction = local_svm_prop( props, acts, params[:min_train_performance]) # params[:props].nil? signals non-prop setting - prediction = nil if (!prediction.nil? && prediction.infinite?) - #$logger.debug "Prediction: '" + prediction.to_s + "' ('#{prediction.class}')." - confidence = get_confidence({:sims => params[:sims][1], :acts => params[:acts]}) - confidence = 0.0 if prediction.nil? + confidence = 0.0 + prediction = nil + + $logger.debug "Local SVM." + if params[:acts].size>0 + if params[:props] + n_prop = params[:props][0].collect.to_a + q_prop = params[:props][1].collect.to_a + props = [ n_prop, q_prop ] end - {:prediction => prediction, :confidence => confidence} - rescue Exception => e - $logger.debug "#{e.class}: #{e.message}" - $logger.debug "Backtrace:\n\t#{e.backtrace.join("\n\t")}" + acts = params[:acts].collect.to_a + prediction = local_svm_prop( props, acts, params[:min_train_performance]) # params[:props].nil? signals non-prop setting + prediction = nil if (!prediction.nil? && prediction.infinite?) + #$logger.debug "Prediction: '" + prediction.to_s + "' ('#{prediction.class}')." + confidence = get_confidence({:sims => params[:sims][1], :acts => params[:acts]}) + confidence = 0.0 if prediction.nil? end + {:prediction => prediction, :confidence => confidence} end @@ -101,30 +96,25 @@ module OpenTox # @return [Numeric] A prediction value. def self.local_svm_classification(params) - begin - confidence = 0.0 - prediction = nil + confidence = 0.0 + prediction = nil - $logger.debug "Local SVM." - if params[:acts].size>0 - if params[:props] - n_prop = params[:props][0].collect.to_a - q_prop = params[:props][1].collect.to_a - props = [ n_prop, q_prop ] - end - acts = params[:acts].collect.to_a - acts = acts.collect{|v| "Val" + v.to_s} # Convert to string for R to recognize classification - prediction = local_svm_prop( props, acts, params[:min_train_performance]) # params[:props].nil? signals non-prop setting - prediction = prediction.sub(/Val/,"") if prediction # Convert back - confidence = 0.0 if prediction.nil? - #$logger.debug "Prediction: '" + prediction.to_s + "' ('#{prediction.class}')." - confidence = get_confidence({:sims => params[:sims][1], :acts => params[:acts]}) + $logger.debug "Local SVM." + if params[:acts].size>0 + if params[:props] + n_prop = params[:props][0].collect.to_a + q_prop = params[:props][1].collect.to_a + props = [ n_prop, q_prop ] end - {:prediction => prediction, :confidence => confidence} - rescue Exception => e - $logger.debug "#{e.class}: #{e.message}" - $logger.debug "Backtrace:\n\t#{e.backtrace.join("\n\t")}" + acts = params[:acts].collect.to_a + acts = acts.collect{|v| "Val" + v.to_s} # Convert to string for R to recognize classification + prediction = local_svm_prop( props, acts, params[:min_train_performance]) # params[:props].nil? signals non-prop setting + prediction = prediction.sub(/Val/,"") if prediction # Convert back + confidence = 0.0 if prediction.nil? + #$logger.debug "Prediction: '" + prediction.to_s + "' ('#{prediction.class}')." + confidence = get_confidence({:sims => params[:sims][1], :acts => params[:acts]}) end + {:prediction => prediction, :confidence => confidence} end @@ -216,9 +206,9 @@ module OpenTox prediction = nil if prediction =~ /NA/ prediction = nil unless train_success $logger.debug "Performance: '#{sprintf("%.2f", @r.perf)}'" - rescue Exception => e - $logger.debug "#{e.class}: #{e.message}" - $logger.debug "Backtrace:\n\t#{e.backtrace.join("\n\t")}" + #rescue Exception => e + #$logger.debug "#{e.class}: #{e.message}" + #$logger.debug "Backtrace:\n\t#{e.backtrace.join("\n\t")}" ensure @r.quit # free R end |