The Clusters page allows you to see how items and categories are connected.
The upper left hand side contains the Categories. These are ordered by default by Strength. It can also be alphabetized by Category Name. Simply click on A-Z and the display will update. To change it back, click on By Strength.
Emcien’s Strength ranking is a proprietary measure the Pattern Detection Engine assigns to connections within an analyzed data set. Think of Strength as a metric that combines Cluster Frequency, the number of times that a specific group of items has occurred in a transaction together; Conditional Probability, how likely the connected Items occur in a transaction together when the Anchor Item is present; and mutual information from the graph.
When a category is selected it will update the upper right hand side to show the selected category along with the related categories that have dependencies.
Categories are displayed with a Dark Blue icon.
Items are displayed throughout Patterns with a Light Blue icon.
If one of the categories on the right is selected it will become highlighted and the lower detail screen will be updated. Or you can select one of the Categories from the list in the pull down menu:
Each line in the list contains a Cluster. For each Cluster we display the Cluster Items, Strength, Frequency, Conditional Probability, and Trend.
- The Item on the left is the Anchor Item. The arrow indicates the dependency relationship between the anchor Item and the remaining Items in the Cluster.
- Emcien’s Strength ranking is a proprietary measure the Pattern Detection Engine assigns to connections within an analyzed data set.
- Frequency is the number of transactions that contain the Cluster.
- Conditional Probability is the likelihood that the connected Items will be present when the anchor Item is present.
- Trend is a spark line graph that shows the periodic trends of the data. A green line means a positive or upward trend while a red means a negative or downward trend.
An example of a dependency relationship would be a printer and a USB cable. If you purchase a printer you are likely to purchase a USB cable with it. If you are purchasing a USB cable it is unlikely that you are going to add a printer to your purchase. For this 2-Item cluster the printer is the anchor Item. Purchase of the USB cable was driven by the printer purchase.
At the end of each line there is a “Tell Me” icon that will bring up more detailed information about the connection from the perspective of the anchor Item.
Example of “Tell Me” pop up details:
Information on each item can be viewed by clicking on the right hand side of the item name where a pull down arrow will appear. Selecting it will display the item name, Item ID, Category, Ranked Connections, Clusters, Transactions, and Average Transaction Size. Clicking on the red X in the menu will close it.
If a Company URL has been provided for on-line Item look-up, it will be displayed at the bottom of the Item information.
To view the complete list of Clusters for one of the menu pull down selections you would click on
when it is set to “Any Category” or click on
when you have selected a specific category from the list.