Ejemplo n.º 1
0
        protected void evaluateIdentification(IDs id)
        {
            log.Debug("NoExclusion. Scores added, but nothing added to the exclusion list");

            // check if the peptide is identified or not
            if (id == null)
            {
                performanceEvaluator.countMS2UnidentifiedAnalyzed();
                return;
            }

            Peptide pep = getPeptideFromIdentification(id);             // if it was going to be null, it already returned
            // is fragmented

            // add decoy or non-existent protein connections
            // database.addProteinFromIdentification(pep, id.getParentProteinAccessions());

            Double xCorr = id.getXCorr();
            Double dCN   = id.getDeltaCN();

            pep.addScore(xCorr, 0.0, dCN);
            performanceEvaluator.evaluateAnalysis(exclusionList, pep);



            RetentionTime rt = pep.getRetentionTime();

            if (!rtCalcPredictedRT.Keys.Contains(pep.getSequence()))
            {
                rtCalcPredictedRT.Add(pep.getSequence(), rt.getRetentionTimePeak());
            }

            ObservedPeptideRtTrackerObject observedPep = new ObservedPeptideRtTrackerObject(pep.getSequence(), id.getScanTime(), id.getXCorr(),
                                                                                            rt.getRetentionTimePeak(), rt.getRetentionTimeStart() + GlobalVar.retentionTimeWindowSize,
                                                                                            RetentionTime.getRetentionTimeOffset(), rtCalcPredictedRT[pep.getSequence()], (rt.IsPredicted() ? 1 : 0));



            if ((xCorr > 2.5))
            {
                // calibrates our retention time alignment if the observed time is different
                // from the predicted only if it passes this threshold
                calibrateRetentionTime(pep);
            }
            observedPep.offset = RetentionTime.getRetentionTimeOffset();
            peptideIDRT.Add(observedPep);
        }
Ejemplo n.º 2
0
        //actual experiment hooked up to the mass spec
        public static void RunRealTimeExperiment()
        {
            PreExperimentSetUp();
            Console.WriteLine("Running real time experiment");

            double startTime = getCurrentTime();

            GlobalVar.ppmTolerance            = 5.0 / 1000000.0;
            GlobalVar.retentionTimeWindowSize = 1.0;
            GlobalVar.AccordThreshold         = 0.5;

            Console.WriteLine("Creating exclusion profile");
            ExclusionProfile exclusionProfile = new MachineLearningGuidedExclusion(InputFileOrganizer.AccordNet_LogisticRegressionClassifier_WeightAndInterceptSavedFile, database, GlobalVar.ppmTolerance, GlobalVar.retentionTimeWindowSize);
            String           experimentName   = GlobalVar.experimentName + String.Format("_MLGE:ppmTol_{0}_rtWin_{1}_prThr_{2}", GlobalVar.ppmTolerance, GlobalVar.retentionTimeWindowSize, GlobalVar.AccordThreshold);
            Experiment       experiment       = new Experiment(exclusionProfile, experimentName, 1, ExclusionProfileEnum.MACHINE_LEARNING_GUIDED_EXCLUSION_PROFILE, startTime);


            new DataReceiver().DoJob(exclusionProfile);

            double analysisTime = getCurrentTime() - startTime;

            try
            {
                WriteUnusedSpectra(experiment);
                WriteScanArrivalProcessedTime(DataProcessor.scanArrivalAndProcessedTimeList);
                WriteScanArrivalProcessedTime(DataProcessor.spectraNotAdded);
                WriteUsedSpectra(experiment);
                WriterClass.writeln("ExclusionList size: " + exclusionProfile.getExclusionList().getExclusionList().Count);
                WriterClass.writeln("Number of exclusion: " + exclusionProfile.getUnusedSpectra().Count);
                WriterClass.writeln("Final rtoffset: " + RetentionTime.getRetentionTimeOffset());
            }
            catch (Exception e)
            {
                Console.WriteLine("Writing exception catched at end of experiment");
            }
            finally
            {
                WriterClass.CloseWriter();
            }
            exclusionProfile.reset();
            reset();
        }
Ejemplo n.º 3
0
        //Called by DataProcessor, entry point to Alex's program
        public bool evaluate(Spectra spec)
        {
            currentTime = spec.getStartTime();
            updateExclusionList(spec);
            if (spec.getMSLevel() == 1)
            {
                log.Debug("Evaluating ms1 scan");
                processMS1(spec);
            }
            else if (spec.getMSLevel() == 2)
            {
                log.Debug("evaluating ms2 scan");
                if (spec.getIndex() % GlobalVar.ScansPerOutput == 0)
                {
#if SIMULATION
                    double progressPercent = spec.getIndex() / GlobalVar.ExperimentTotalScans * 100;
                    log.Info("Progress: {0:F2}% Processing ID: {1}\t ScanNum: {2} \t Excluded: {3}", progressPercent, spec.getIndex(), spec.getScanNum(),
                             excludedSpectra.Count);
#else
                    log.Info("Progress: {0}\t{1} excluded------------------------", spec.getIndex(), excludedSpectra.Count);
                    log.Info("ExclusionListSize: {0}\tRTOffset: {1}", exclusionList.getExclusionList().Count, RetentionTime.getRetentionTimeOffset());
#endif
                }

                return(processMS2(spec));
            }
            else
            {
                log.Debug("unrecognized msScan");
            }
            return(true);
        }