Fading signal pattern

Definition
A pattern (P) that used to exist consistently until a certain point (j), then ceases to appear for the remainder of the observation window. Mathematically.

Example in marketing
An ad campaign that consistently drove traffic for several months but abruptly stops delivering leads (budget cut, API issue, etc.).

Why it is important
A model trained on the “always-on” pattern may miss that this signal has faded. By the time it re-trains, the pattern is gone and might be misclassified or go unnoticed.

Emergence pattern

Definition
The opposite of a fading pattern: a signal that didn’t exist at first but then consistently appears from time (i) onward.

Example in marketing
A new marketing channel that suddenly goes viral—e.g., a TikTok campaign that emerges at time (i) and remains effective afterward.

Why it is important
A static model might ignore this new pattern as a transient anomaly or take too long to re-train and recognize a “new normal.”

Pulse pattern

Definition
A signal that turns on and off multiple times, requiring at least three transitions at times (i), (j), and (k).

Example in marketing
A recurring seasonal promotion—active from (t=i) to (t=j), then off, then active again after (t=k). Or an influencer campaign that runs in short bursts.

Why it is important
Repeated “ups and downs” can either be mistaken for random noise or consistently flagged as anomalies, depending on how naive the detector is.

Constant pattern

Definition
A pattern that is always present throughout the entire observation period.

Example in marketing
A baseline brand awareness or mention volume that never drops below a certain threshold.

Why it is important
A persistent signal can become “invisible” to certain detectors; small changes within that baseline may be overlooked since the model sees it as always normal.

How we solve it
Even if the overall pattern is constant, spiking neurons can detect small internal fluctuations; TCEG can link this constant baseline to other channels to see if it causally drives or is driven by new events.

Flash pattern

Definition
A signal that appears exactly once at some time (i), never to be seen again.

Example in marketing
A one-off viral post or a sudden glitch driving a surge in website traffic or conversions—just once, then gone.

Why it is important
Single spikes can cause false alarms (if interpreted as a critical anomaly) or get labeled as irrelevant and vanish from further consideration.