sift:dynamic_time_warping:dynamic_time_warping_dialog
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| sift:dynamic_time_warping:dynamic_time_warping_dialog [2024/06/18 13:26] – sgranger | sift:dynamic_time_warping:dynamic_time_warping_dialog [2024/07/17 15:44] (current) – created sgranger | ||
|---|---|---|---|
| Line 1: | Line 1: | ||
| + | ====== Dynamic Time Warping Dialog ====== | ||
| + | |||
| Dynamic Time Warping is a distance based algorithm that allows you to compare and measure similarity between two time based sequences, by minimizing the Euclidean distance between points. Essentially it aligns each point of one trace to a corresponding point on the other trace that require the least distance. All distances are added together to make the total cost function of the trace. The large the cost function, the less similar the two traces are. This can be useful when trying to identify a singular trace or to find outliers. A more detailed overview of Dynamic Time Warping in Sift can be found [[Sift: | Dynamic Time Warping is a distance based algorithm that allows you to compare and measure similarity between two time based sequences, by minimizing the Euclidean distance between points. Essentially it aligns each point of one trace to a corresponding point on the other trace that require the least distance. All distances are added together to make the total cost function of the trace. The large the cost function, the less similar the two traces are. This can be useful when trying to identify a singular trace or to find outliers. A more detailed overview of Dynamic Time Warping in Sift can be found [[Sift: | ||
| The Dynamic Time Warping dialog is found on the toolbar and under the Analysis menu. | The Dynamic Time Warping dialog is found on the toolbar and under the Analysis menu. | ||
| - | {{DTWdialplacement.png}} | + | {{:DTWdialplacement.png}} |
| - | ===== Dynamic Time Warping Dialog | + | ==== Dynamic Time Warping Dialog ==== |
| The Dynamic Time Warping dialog is split up into two tabs. | The Dynamic Time Warping dialog is split up into two tabs. | ||
| Line 12: | Line 14: | ||
| - Comparing a Singular Trace to a Dataset | - Comparing a Singular Trace to a Dataset | ||
| - | ==== Finding Anomalies / Outliers in a Dataset | + | === Finding Anomalies / Outliers in a Dataset === |
| This tab allows you to find anomalies within a data set. | This tab allows you to find anomalies within a data set. | ||
| Line 24: | Line 26: | ||
| The bottom section displays the results. The traces and cost function of each anomaly are displayed. Traces can be excluded from the group by selecting the Exclude Anomalies button. Previous results can be displayed by the drop down menu. | The bottom section displays the results. The traces and cost function of each anomaly are displayed. Traces can be excluded from the group by selecting the Exclude Anomalies button. Previous results can be displayed by the drop down menu. | ||
| - | {{DTWAnomaliesDialog.png}} | + | {{:DTWAnomaliesDialog.png}} |
| - | ==== Comparing a Singular Trace to a Dataset | + | === Comparing a Singular Trace to a Dataset === |
| This tab allows you to find a trace in a data set that is most similar to a chosen one. | This tab allows you to find a trace in a data set that is most similar to a chosen one. | ||
| Line 38: | Line 40: | ||
| The bottom section displays the results. The found trace and cost function of the trace most similar to the selected trace. This trace can be excluded from the group by selecting the Exclude Anomalies button. Previous results can be displayed by the drop down menu. | The bottom section displays the results. The found trace and cost function of the trace most similar to the selected trace. This trace can be excluded from the group by selecting the Exclude Anomalies button. Previous results can be displayed by the drop down menu. | ||
| - | {{DTWTraceDialog.png}} | + | {{:DTWTraceDialog.png}} |
sift/dynamic_time_warping/dynamic_time_warping_dialog.1718717184.txt.gz · Last modified: 2024/06/18 13:26 by sgranger