Myth Buster A Time Decay Model (Clicks and Impressions)
Have you ever wondered what a Time Decay Model really is? How is it calculated, what are the parameters, and how can we interpret it? Let’s get started with an easy example!
Using a tagging solution , Kent Industries can see when users are interacting with their ads. This leaves them with a path of media interactions (or interaction path) prior to users completing a relevant activity (e.g., a sale). We call each media touchpoint an interaction and each relevant activity a conversion . For this example, we use a Time Decay Parameter p = 10, and we see clicks and impressions, with clicks being worth 10 times more than impressions. Path
Interaction 1
Interaction 2
Interaction 3
Interaction 4
Interaction 5
Conversion
1
IMP Camp A
CLK Camp A
IMP Camp C
CLK Camp C
CLK Camp B
SALE
2
CLK Camp C
IMP Camp B
CLK Camp B
SALE
Time (x) TDF (CLICK) TDF (IMP)
72 h
48 h
24 h
12 h
5 h
0h
0.7
3.6
19.0
43.6
70.7
0.07
0.36
1.9
4.36
7.07
The Time Decay Factor (TDF) for clicks and impressions can be calculated as follows: x
T DF CLICK(x, 10) = 100 * 0.5 10
x
T DF IMP (x, 10) = (100 * 0.5 10 ) / 10 TDF is defined by two things: (1) the time span the interaction is away from the conversion x and (2) the Time Decay Parameter p . The smaller p is, the quicker the value of the TDF decreases with increasing distance of the interaction event from the conversion. For impressions , we also divide the value by 10, meaning we value clicks ten times more than impressions . Path
Interaction 1
Interaction 2
Interaction 3
Interaction 4
Interaction 5
Conversion
1
(0.07) 0.06%
(3.6) 3.0%
(1.9) 1.6%
(43.6) 36.4%
(70.7) 59.0%
SALE
2
(19) 20.2%
(4.36) 4.6%
(70.7) 75.2%
SALE
Time Decay (p=10)
Cost %
ROAS Time Decay
Campaign A
3.06/2= 1.53%
30%
0.05
Campaign B
138.8/2= 69.4%
30%
2.3
Campaign C
58.2/2= 29.1%
40%
0.73
100%
100%
SUM
Under a given attribution model, we can say: 1. If the ROAS > 1.2 , we believe the marketing campaign is highly efficient . Higher budget could be considered. 2. If ROAS between 0.8 and 1.2 , we believe the marketing channel is efficient given contribution to conversions. 3. If the ROAS < 0.8 , we believe the marketing campaign appears to be less efficient given the money spent.
Myth Buster âA Time Decay Model (Clicks and ... Services
For this example, we use a âTime Decay. Parameter p â= 10, and we see clicks and impressions, with clicks âbeing worth 10 times more âthan impressions. Path. Interaction 1. Interaction 2. Interaction 3. Interaction 4. Interaction 5. Conversion. 1. IMPâ Camp âA. CLK âCamp âA. IMP âCamp âC. CLK âCamp âC.
Using âa tagging solutionâ, Kent Industries can see when users have interacted with their ads. This leaves them with a path of media interactions â(or interaction path) prior to users completing a relevant activity (e.g., a sale). We call each
Using âa tagging solutionâ, Kent Industries can see when users have interacted with their ads. This leaves them with a path of media interactions (or interaction path) prior to users completing a relevant activity (e.g., a sale). We call each med
Myth Buster âThe Math Behind Attribution Modelling. Have you ever wondered what an Attribution ROAS number really is? Specifically, how this relates to. Attribution Modelling and models? Well, you have all answers right here. Let's get started with
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