Event Sequence Detection Details

If the Nexeed Backend-Service AI Services module is installed, event sequence detection is available.

When using event sequence detection to find a specific event target, the event sequence detection analyzes event data, such as rule results and machine messages. Event sequence detection can be used to detect anomalies before an event target is reached.

A rule can be created for event sequence detection. A rule is triggered as soon as the specified sequence occurs. In this way, certain behaviors can be identified so that they can be responded to as quickly as possible.

The event sequence detection calculates the following variables:

Confidence
Confidence indicates how often the event target occurs after the sequence.
support
Support indicates how often the sequence occurs before the event target.
Relevance
Relevance is the geometric mean value of Confidence and Support.

Prerequisites

Production planner or Administrator role
The Nexeed Backend-Service AI Services module has been installed.
At least two event targets have occurred during the specified time period.

Example calculations

Performance size	Description	Calculation
Confidence	In 6 (= dark red A or C) out of 9 (= dark red A or C) cases, the event target (= T) occurs after the sequence. Values in the event sequence details: Event Sequence Details Target event and sequence/number of (viewed) target events = confidence value
support	In 6 (= dark red A or C) out of 8 (= T) cases, the sequence occurs before the event target (= T). Values in the event sequence details: Event Sequence Details Target event and sequence/(target event and sequence + sequence without target event) = support value
Relevance	The relevance indicates how well event sequence detection leads to the target event. Values in the event sequence details: Event Sequence Details √ (confidence value + support value) = relevance value

Performance size

Description

Calculation

Confidence

In 6 (= dark red A or C) out of 9 (= dark red A or C) cases, the event target (= T) occurs after the sequence.

Values in the event sequence details:

Event Sequence Details

Target event and sequence/number of (viewed) target events = confidence value

support

In 6 (= dark red A or C) out of 8 (= T) cases, the sequence occurs before the event target (= T).

Values in the event sequence details:

Event Sequence Details

Target event and sequence/(target event and sequence + sequence without target event) = support value

Relevance

The relevance indicates how well event sequence detection leads to the target event.

Values in the event sequence details:

Event Sequence Details

√ (confidence value + support value) = relevance value

Rules tab

If a device is selected in the Efficiency analysis > Condition monitoring menu, the detailed view opens. All rules of the device are displayed in the detailed view in the Rules tab. New rules can be created for the device. Displayed rules can only be configured in the Rules management menu.

Create or Configure a Rule

cm_tab_rule_2023_02_01

Element/icon	Description
XX items	Number of rules created
	Create or Configure a Rule If a new rule is created for the device, the device or device type cannot be changed. To create a new rule for another device or device type, switch to the Rules management menu. Rules management
Column title	Sort the overview by column Status, Severity, Title, Context, Code or Description .

Element/icon

Description

XX items

Number of rules created

Create or Configure a Rule

If a new rule is created for the device, the device or device type cannot be changed. To create a new rule for another device or device type, switch to the Rules management menu.

Rules management

Column title

Sort the overview by column Status, Severity, Title, Context, Code or Description .