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Click Train Detector Help
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@ -146,6 +146,11 @@ public class ClickTrainControl extends PamControlledUnit implements PamSettings
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* Click info manager- handles information from the algorithms.
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* Click info manager- handles information from the algorithms.
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*/
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*/
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private CTAlgorithmInfoManager clAlgorithmInfoManager;
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private CTAlgorithmInfoManager clAlgorithmInfoManager;
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/**
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* Help point which can be referenced form dialogs, etc.
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*/
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public static final String helpPoint = "detectors.ClickTrainDetector.docs.ClickTrainDetector";
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/**
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/**
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* Constructor for the ClickTrainControl.
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* Constructor for the ClickTrainControl.
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@ -587,6 +587,11 @@ public class ClickTrainAlgorithmPaneFX extends SettingsPane<ClickTrainParams> {
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public void paneInitialized() {
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public void paneInitialized() {
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}
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}
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@Override
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public String getHelpPoint() {
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return ClickTrainControl.helpPoint;
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}
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}
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}
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<title>Help </title>
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<title>Help </title>
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@ -117,7 +124,8 @@ top
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<name>
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<name>
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TOC
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TOC
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</name>
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</name>
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@ -135,7 +143,8 @@ TOC
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<label>
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TOC
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TOC
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@ -171,7 +181,8 @@ javax.help.TOCView
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<data>
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<data>
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PAMGUARDTOC.xml
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PAMGUARDTOC.xml
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</data>
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</data>
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@ -203,7 +215,8 @@ PAMGUARDTOC.xml
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<view>
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<view>
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@ -221,7 +234,8 @@ PAMGUARDTOC.xml
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<name>
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<name>
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Index
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Index
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</name>
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</name>
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@ -239,7 +253,8 @@ Index
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<label>
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<label>
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Index
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Index
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</label>
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</label>
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@ -257,7 +272,8 @@ Index
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<type>
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<type>
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javax.help.IndexView
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javax.help.IndexView
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</type>
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<data>
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<data>
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PAMGUARDIndex.xml
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PAMGUARDIndex.xml
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</data>
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</data>
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@ -291,7 +308,8 @@ PAMGUARDIndex.xml
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</view>
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</view>
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<view>
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<view>
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@ -325,7 +344,8 @@ PAMGUARDIndex.xml
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<name>
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<name>
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Search
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Search
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</name>
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</name>
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@ -343,7 +363,8 @@ Search
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<label>
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<label>
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Search
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Search
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</label>
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</label>
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<type>
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<type>
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javax.help.SearchView
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javax.help.SearchView
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</type>
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<data engine="com.sun.java.help.search.DefaultSearchEngine">
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<data engine="com.sun.java.help.search.DefaultSearchEngine">
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JavaHelpSearch
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JavaHelpSearch
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</data>
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</data>
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</view>
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@ -6,7 +6,7 @@
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<project>
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<project>
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PAMGUARD
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PAMGUARD
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</project>
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</project>
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<projectdir>C:\PamguardCode2021\PamGuard NOAA2\src\help</projectdir>
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<projectdir>C:\Users\dg50\source\repos\PAMGuardDG\src\help</projectdir>
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<startpage>
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<startpage>
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index.html
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index.html
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</startpage>
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</startpage>
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@ -481,6 +481,10 @@
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<tocitem text="Localisation " target="detectors.gpl.docs.localisation" image="topic"/>
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<tocitem text="Localisation " target="detectors.gpl.docs.localisation" image="topic"/>
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</tocitem>
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</tocitem>
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<tocitem text="Click Train Detector " target="detectors.ClickTrainDetector.docs.ClickTrainDetector">
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<tocitem text="Overview " target="detectors.ClickTrainDetector.docs.ClickTrainDetector" image="topic"/>
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</tocitem>
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</tocitem>
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</tocitem>
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<tocitem text="Classifiers ">
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<tocitem text="Classifiers ">
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<tocitem text="Whistle Classifier ">
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<tocitem text="Whistle Classifier ">
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</head>
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</head>
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<body>
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<body>
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<h1 id="click-train-detector">Click Train Detector</h1>
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<h1 id="click-train-detector">Click Train Detector</h1>
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<h2 id="overview">Overview</h2>
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<h2 id="overview">Overview</h2>
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<p>When a toothed whale, bat or other echolocator uses echolocation
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<p>When a toothed whale, bat or other echolocator uses echolocation
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with multiple types of acoustic data, from CPOD detections to single
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with multiple types of acoustic data, from CPOD detections to single
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channel and multi-channel hydrophone recordings.</p>
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channel and multi-channel hydrophone recordings.</p>
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<h2 id="how-it-works">How it works</h2>
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<h2 id="how-it-works">How it works</h2>
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<p>PAMGuard's click train detector utilises both a detection and
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<p>PAMGuard’s click train detector utilises both a detection and
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classification stage to extract click trains from recordings.</p>
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classification stage to extract click trains from recordings.</p>
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<p>The detection stage is currently based on a multi hypothesis
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<p>The detection stage is currently based on a multi hypothesis
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tracking (MHT) algorithm. This algorithm considers all possible
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tracking (MHT) algorithm. This algorithm considers all possible
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combinations of transient detections creating a large hypothesis
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combinations of transient detections creating a large hypothesis
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matrix which holds potential click trains. As more clicks are added to
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matrix which holds potential click trains. As more clicks are added to
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the hypothesis matrix it grows exponentially and so, to prevent a
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the hypothesis matrix it grows exponentially and so, to prevent a
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computer running out memory, it is regularly <em>pruned</em> to keep only
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computer running out memory, it is regularly “pruned” to keep only the
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the most likely click trains over time. The assigned likelihood of a
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most likely click trains over time. The assigned likelihood of a click
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click train is based on number of properties which can be defined in
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train is based on number of properties which can be defined in by the
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by the user. For example, a user might select, ICI, Amplitude and
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user. For example, a user might select, ICI, Amplitude and Correlation
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Correlation as variables to score click trains; this would mean that
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as variables to score click trains; this would mean that combinations
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combinations of clicks with slowly changing ICI, amplitude and
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of clicks with slowly changing ICI, amplitude and waveforms would be
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waveforms would be favoured by the algorithm and stay in the
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favoured by the algorithm and stay in the hypothesis matrix. Other
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hypothesis matrix. Other properties such as bearing, click length and
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properties such as bearing, click length and peak frequency can also
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peak frequency can also be selected. A graphical explanation of the
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be selected. A graphical explanation of the click train detection
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click train detection algorithm is shown in Figure 1 and a more
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algorithm is shown in Figure 1 and a more detailed explanation of the
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detailed explanation of the be found in Macaulay (2019).</p>
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be found in Macaulay (2019).</p>
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<p align="center">
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<p align="center">
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<img width="930" height="900" src="resources/mht_diagram.png">
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<img width="930" height="900" src="resources/mht_diagram.png">
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</p>
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</p>
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pruned. After a minimum of Npmin clicks (in this case 4) each track
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pruned. After a minimum of Npmin clicks (in this case 4) each track
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hypothesis (possible click train) is assigned a Χ<sup>2</sup> score.
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hypothesis (possible click train) is assigned a Χ<sup>2</sup> score.
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The track hypothesis with lowest score (defined by larger coloured
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The track hypothesis with lowest score (defined by larger coloured
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circles) has it's branch traced back Np (in this case 3) clicks.
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circles) has it’s branch traced back Np (in this case 3) clicks. Any
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Any track hypothesis which do not include the click Np steps back are
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track hypothesis which do not include the click Np steps back are
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pruned (defined by the double lines). Clicks which share no click
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pruned (defined by the double lines). Clicks which share no click
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associations with the first track hypothesis are then pruned and the
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associations with the first track hypothesis are then pruned and the
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process repeats until all clicks are part of a track or a maximum
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process repeats until all clicks are part of a track or a maximum
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number of tracks have been considered (in this example there are two
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number of tracks have been considered (in this example there are two
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tracks). The algorithm then moves to the next click, adds it to the
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tracks). The algorithm then moves to the next click, adds it to the
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hypothesis matrix, assigns Χ<sup>2</sup> scores and traces the
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hypothesis matrix, assigns Χ<sup>2</sup> scores and traces the lowest
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lowest Χ<sup>2</sup> branch Np steps back, pruning the hypothesis
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Χ<sup>2</sup> branch Np steps back, pruning the hypothesis matrix
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matrix again; the process repeats until the last click. Note that
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again; the process repeats until the last click. Note that there is
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there is always a track hypothesis with no associated clicks (i.e.
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always a track hypothesis with no associated clicks (i.e. the
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the bottom-most branch where no clicks belong to a click train). If a
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bottom-most branch where no clicks belong to a click train). If a
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track hypothesis is confirmed and thus removed from the hypothesis
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track hypothesis is confirmed and thus removed from the hypothesis
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matrix, then this track can be used to start another click train
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matrix, then this track can be used to start another click train
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</em>
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</em>
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correlation of the average spectrum of the click train with a
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correlation of the average spectrum of the click train with a
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predefined spectral template.</p>
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predefined spectral template.</p>
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<p>A click train which has been both detected and classified is
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<p>A click train which has been both detected and classified is
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saved to PAMGuard's database and can be reclassified in PAMGuard's
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saved to PAMGuard’s database and can be reclassified in PAMGuard’s
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viewer mode.</p>
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viewer mode.</p>
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<h2 id="configuring-the-click-train-detector">Configuring the
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<h2 id="configuring-the-click-train-detector">Configuring the
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click train detector</h2>
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click train detector</h2>
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<p>The primary settings to configure can be split into MHT Kernel
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<p>The primary settings to configure can be split into MHT Kernel
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and Χ<sup>2</sup> settings, these are all set in the primary click train
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and Χ^2 settings – these are all set in the primary click train
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detector dialog as shown in Figure 2.</p>
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detector dialog as shown in Figure 2.</p>
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<p align="center">
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<p align="center">
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<img width="850" height="700" src="resources/detection_pane.png">
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<img width="850" height="700" src="resources/detection_pane.png">
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important because they influence speed (a larger number of possible
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important because they influence speed (a larger number of possible
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click trains in memory is more processor intensive) and the quality of
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click trains in memory is more processor intensive) and the quality of
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the detections (the larger the number of possibilities the more likely
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the detections (the larger the number of possibilities the more likely
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that <em>true</em> click trains are contained in the hypothesis matrix).
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that “true” click trains are contained in the hypothesis matrix). The
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The specific settings are;</p>
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specific settings are;</p>
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<p>
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<p>
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<strong><em>Prune-back</em></strong>: The hypothesis matrix needs
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<strong><em>Prune-back</em></strong>: The hypothesis matrix needs
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pruned so that it does not grow exponentially and cause memory issues.
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pruned so that it does not grow exponentially and cause memory issues.
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<p>
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<p>
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<strong><em>Max no. trains</em></strong>: This is a maximum allowed
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<strong><em>Max no. trains</em></strong>: This is a maximum allowed
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number of trains in the hypothesis mix. Note this refers to the number
|
number of trains in the hypothesis mix. Note this refers to the number
|
||||||
of trains which can survive pruning - the actual number of potential
|
of trains which can survive pruning – the actual number of potential
|
||||||
click trains in the hypothesis mix will be much larger. Generally,
|
click trains in the hypothesis mix will be much larger. Generally,
|
||||||
just via pruning, the hypothesis matrix will keep itself below the max
|
just via pruning, the hypothesis matrix will keep itself below the max
|
||||||
no. trains, however, in certain situations it can grow too large and
|
no. trains, however, in certain situations it can grow too large and
|
||||||
@ -165,8 +164,8 @@
|
|||||||
</h3>
|
</h3>
|
||||||
<p>
|
<p>
|
||||||
Χ<sup>2</sup> is a measure of the likelihood that a click train is
|
Χ<sup>2</sup> is a measure of the likelihood that a click train is
|
||||||
from a (usually) biological source. The higher the Χ<sup>2</sup>
|
from a (usually) biological source. The higher the Χ<sup>2</sup> value
|
||||||
value the lower the quality of a click train.
|
the lower the quality of a click train.
|
||||||
</p>
|
</p>
|
||||||
<p>
|
<p>
|
||||||
The Χ<sup>2</sup> model used in the click train detector considers
|
The Χ<sup>2</sup> model used in the click train detector considers
|
||||||
@ -198,8 +197,8 @@
|
|||||||
influence on the calculation of Χ<sup>2</sup> and decreasing means
|
influence on the calculation of Χ<sup>2</sup> and decreasing means
|
||||||
that the descriptor has a larger influence on Χ<sup>2</sup>. In some
|
that the descriptor has a larger influence on Χ<sup>2</sup>. In some
|
||||||
cases, clicks can be so close together that the variance is tiny and
|
cases, clicks can be so close together that the variance is tiny and
|
||||||
thus Χ<sup>2</sup> becomes huge e.g. during buzzes. A minimum
|
thus Χ<sup>2</sup> becomes huge e.g. during buzzes. A minimum variance
|
||||||
variance value (<em>qt<sub>i</sub></em>) prevents the variance <em>(max¡(q<sub>i</sub>
|
value (<em>qt<sub>i</sub></em>) prevents the variance <em>(max(q<sub>i</sub>
|
||||||
(t<sub>(k+1)</sub>-t<sub>k</sub> ),qt<sub>i</sub> )<sup>2</sup>)
|
(t<sub>(k+1)</sub>-t<sub>k</sub> ),qt<sub>i</sub> )<sup>2</sup>)
|
||||||
</em> from falling below very low values.
|
</em> from falling below very low values.
|
||||||
</p>
|
</p>
|
||||||
@ -229,7 +228,7 @@
|
|||||||
between detections.
|
between detections.
|
||||||
</p>
|
</p>
|
||||||
<p>
|
<p>
|
||||||
<strong><em>Amplitude:</em></strong> the amplitude in dB re 1μPa pp.
|
<strong><em>Amplitude:</em></strong> the amplitude in dB re 1/muPa pp.
|
||||||
The algorithm looks for slowly changing amplitude values. Note that
|
The algorithm looks for slowly changing amplitude values. Note that
|
||||||
the algorithm is comparing the change in change in amplitude so that
|
the algorithm is comparing the change in change in amplitude so that
|
||||||
the click train algorithm is not biased against large but consistent
|
the click train algorithm is not biased against large but consistent
|
||||||
@ -312,14 +311,14 @@
|
|||||||
<strong><em>Long track bonus:</em></strong> add a bonus factor for
|
<strong><em>Long track bonus:</em></strong> add a bonus factor for
|
||||||
longer click trains to prevent fragmentation. This is the total length
|
longer click trains to prevent fragmentation. This is the total length
|
||||||
of the click train in seconds divided by the total hypothesis matrix
|
of the click train in seconds divided by the total hypothesis matrix
|
||||||
time in seconds L which is then multiplied so that Χ<sup>2</sup> =
|
time in seconds L which is then multiplied so that Χ<sup>2</sup> = (Χ<sup>2</sup>*L)<sup>LT</sup>
|
||||||
(Χ<sup>2</sup>*L)<sup>LT</sup> where LT is the long track bonus.
|
where LT is the long track bonus.
|
||||||
</p>
|
</p>
|
||||||
<p>
|
<p>
|
||||||
<strong><em>Coast penalty:</em></strong> add a penalty for
|
<strong><em>Coast penalty:</em></strong> add a penalty for “coasting”
|
||||||
'coasting' i.e. when an expected click, based on ICI, is not
|
i.e. when an expected click, based on ICI, is not present in the click
|
||||||
present in the click train. This penalty is multiplied by the number
|
train. This penalty is multiplied by the number of coasts i.e. the
|
||||||
of coasts i.e. the likely number of missed clicks based on ICI
|
likely number of missed clicks based on ICI
|
||||||
</p>
|
</p>
|
||||||
<p>
|
<p>
|
||||||
<strong><em>New Track Penalty:</em></strong> if a track hypothesis is
|
<strong><em>New Track Penalty:</em></strong> if a track hypothesis is
|
||||||
@ -361,10 +360,10 @@
|
|||||||
Χ<sup>2</sup> threshold classifier
|
Χ<sup>2</sup> threshold classifier
|
||||||
</h3>
|
</h3>
|
||||||
<p>
|
<p>
|
||||||
The click train is classified if it's overall Χ<sup>2</sup> value
|
The click train is classified if it’s overall Χ<sup>2</sup> value is
|
||||||
is lower than the set Χ<sup>2</sup> Threshold and it has more than
|
lower than the set Χ<sup>2</sup> Threshold and it has more than Min.
|
||||||
Min. Clicks and the time between the first and last click is greater
|
Clicks and the time between the first and last click is greater than
|
||||||
than Min. Time
|
Min. Time
|
||||||
</p>
|
</p>
|
||||||
<h3 id="idi-classifier">IDI Classifier</h3>
|
<h3 id="idi-classifier">IDI Classifier</h3>
|
||||||
<p>The click train is classified if the median/mean and standard
|
<p>The click train is classified if the median/mean and standard
|
||||||
@ -374,11 +373,11 @@
|
|||||||
<p>The click train is classified if the average spectra of the
|
<p>The click train is classified if the average spectra of the
|
||||||
click train has a correlation value above Spectrum Correlation
|
click train has a correlation value above Spectrum Correlation
|
||||||
Threshold with a user defined spectral template. The template can be
|
Threshold with a user defined spectral template. The template can be
|
||||||
set using the button on the top right of the spectrum plot – a
|
set using the button on the top right of the spectrum plot – a default
|
||||||
default spectrum can be loaded or a spectrum can be loaded from a .mat
|
spectrum can be loaded or a spectrum can be loaded from a .mat or .csv
|
||||||
or .csv file. A csv file should have the first row as the spectrum and
|
file. A csv file should have the first row as the spectrum and first
|
||||||
first column of the second row the sample rate. A .mat file should be
|
column of the second row the sample rate. A .mat file should be a
|
||||||
a single saved structure with sR (sample rate) and spectrum (array of
|
single saved structure with sR (sample rate) and spectrum (array of
|
||||||
spectrum values) fields.</p>
|
spectrum values) fields.</p>
|
||||||
<h3 id="bearing-classifier">Bearing Classifier</h3>
|
<h3 id="bearing-classifier">Bearing Classifier</h3>
|
||||||
<p>The click train is classified if minimum and maximum bearing
|
<p>The click train is classified if minimum and maximum bearing
|
||||||
@ -389,7 +388,7 @@
|
|||||||
<h2 id="parametrising-the-classifier">Parametrising the classifier</h2>
|
<h2 id="parametrising-the-classifier">Parametrising the classifier</h2>
|
||||||
<p>Each classifier has a set of metadata that are added to click
|
<p>Each classifier has a set of metadata that are added to click
|
||||||
trains. This can be accessed through the tooltip or right click menus
|
trains. This can be accessed through the tooltip or right click menus
|
||||||
in various displays. For example, in the Time Base Display FX hover
|
in various displays. For example, in the Time Base Display Fx hover
|
||||||
the mouse over a click train or bring the pop menu with a right click.
|
the mouse over a click train or bring the pop menu with a right click.
|
||||||
Parameters such as the spectral correlation value, IDI and bearing
|
Parameters such as the spectral correlation value, IDI and bearing
|
||||||
information etc are displayed which allows users to get an idea of
|
information etc are displayed which allows users to get an idea of
|
||||||
@ -464,23 +463,23 @@
|
|||||||
are localised.</em>
|
are localised.</em>
|
||||||
</p>
|
</p>
|
||||||
<p>In viewer mode, add the module and then go to Settings>Click
|
<p>In viewer mode, add the module and then go to Settings>Click
|
||||||
Train Detector > Reanalyse click trains.This will bring up
|
Train Detector > Reanalyse click trains….This will bring up
|
||||||
PAMGuard's generic data reprocessing dialog with two settings, Click
|
PAMGuard’s generic data reprocessing dialog with two settings, Click
|
||||||
Train Detector or Click Train Classifier. The Click Train Detector
|
Train Detector or Click Train Classifier. The Click Train Detector
|
||||||
option will run the detection and classification algorithm again. The
|
option will run the detection and classification algorithm again. The
|
||||||
Click Train Classifier will only run the classification algorithm on
|
Click Train Classifier will only run the classification algorithm on
|
||||||
existing detected click trains (much faster). Note that users can
|
existing detected click trains (much faster). Note that users can
|
||||||
select how much data to reprocess in the Data dropdown menu. All
|
select how much data to reprocess in the Data dropdown menu – All Data
|
||||||
Data means the entire dataset will be reprocessed, Loaded Data means
|
means the entire dataset will be reprocessed, Loaded Data means just
|
||||||
just the current data loaded in the display (all scrollable data),
|
the current data loaded in the display (all scrollable data), Select
|
||||||
Select Data allows the user to define two time limits between which
|
Data allows the user to define two time limits between which all data
|
||||||
all data is reprocessed.</p>
|
is reprocessed.</p>
|
||||||
<h2 id="visualising-results">Visualising Results</h2>
|
<h2 id="visualising-results">Visualising Results</h2>
|
||||||
<p>The results from the click train detector can be visualised in a
|
<p>The results from the click train detector can be visualised in a
|
||||||
variety of displays in PAMGuard.</p>
|
variety of displays in PAMGuard.</p>
|
||||||
<h3 id="click-bearing-time-display">Click bearing time display</h3>
|
<h3 id="click-bearing-time-display">Click bearing time display</h3>
|
||||||
<p>By default, clicks trains will be shown in the Click Detector
|
<p>By default, clicks trains will be shown in the Click Detector
|
||||||
Module's in built bearing time display. Different click trains are
|
Module’s in built bearing time display. Different click trains are
|
||||||
represented as different colours. Note that you must right click on
|
represented as different colours. Note that you must right click on
|
||||||
the display and select Colour by Click Trains</p>
|
the display and select Colour by Click Trains</p>
|
||||||
<p align="center">
|
<p align="center">
|
||||||
@ -492,31 +491,22 @@
|
|||||||
bearing time display. Different colours correspond to different click
|
bearing time display. Different colours correspond to different click
|
||||||
trains.</em>
|
trains.</em>
|
||||||
</p>
|
</p>
|
||||||
<h3 id="time-display-fx">Time Display FX</h3>
|
<h3 id="time-display-fx">Time Display Fx</h3>
|
||||||
<p>The Time Display FX is a more modern display which allows any
|
<p>The Time Display Fx is a more modern display which allows any
|
||||||
time-based data to be plotted together on a large variety of y-axis
|
time-based data to be plotted together on a large variety of y-axis
|
||||||
(e.g., frequency, bearing, amplitude etc.). Click trains will be
|
(e.g., frequency, bearing, amplitude etc.). Click trains will be
|
||||||
plotted on the time-based display by adding Click detections to the
|
plotted on the time-based display by adding Click detections to the
|
||||||
display and then using the right</p>
|
display and then using the right</p>
|
||||||
<p align="center">
|
<p align="center">
|
||||||
<img width="940" height="500" src="resources/clicktrain_TDFX.png">
|
<img width="940" height="500" src="resources/clicktrain_TDFx.png">
|
||||||
</p>
|
</p>
|
||||||
|
|
||||||
<p>
|
<p>
|
||||||
<em>Click train data displayed in the time display FX. Users can
|
<em>Click train data displayed in the time display Fx. Users can
|
||||||
right click on click trains to view average spectra and waterfall
|
right click on click trains to view average spectra and waterfall
|
||||||
spectrograms (shown here in top right).</em>
|
spectrograms (shown here in top right).</em>
|
||||||
</p>
|
</p>
|
||||||
|
|
||||||
|
|
||||||
<p CLASS="previousLink">
|
|
||||||
<a href=""></a>
|
|
||||||
</p>
|
|
||||||
<p CLASS="nextLink">
|
|
||||||
<a href="ClickDetector_clickDetectorDisplays.html">Next: Click
|
|
||||||
Detector Displays </a>
|
|
||||||
</p>
|
|
||||||
<br>
|
|
||||||
<br>
|
|
||||||
</body>
|
</body>
|
||||||
</html>
|
</html>
|
||||||
|
Loading…
Reference in New Issue
Block a user