01 · MEASURE
Observe served impressions
A Fou campaign pixel records the outcome and produces red, blue, mixed, or unobserved evidence.
Bidstream quality infrastructure
Clean the stream before it reaches your bidder.
Fou Analytics measures served-impression outcomes. Engrammatic uses that evidence to sanitize incoming bid requests before they consume bidder QPS.
DSPad networkretail mediacustom buyerany bidder operator
Fou Analytics × Engrammatic · bidstream sanitizer2:14 · English captions
The sanitization loop
Post-bid truth becomes pre-bid control.
The client keeps its bidder. Fou supplies the measurement signal. Engrammatic operates the high-throughput layer that joins, learns, and removes repeat junk before the remaining stream enters the client’s decisioning path.
02 · JOIN
Connect outcome to request
Pixel or impression IDs join Fou data with the operator’s IP, user ID, domain, app, and supply context.
03 · LEARN
Build bidder-specific memory
Explicit policies and compact hypervector memories capture good, bad, mixed, and novel traffic patterns.
04 · SANITIZE
Forward the eligible stream
Remove known bad traffic, bid down mixed supply, and route only accepted opportunities to the bidder.
Policy + HDC
Concrete controls, then learned similarity.
The initial policy follows Augustine Fou’s entity-history method. Engrammatic adds high-dimensional matching for combinations that simple lists do not capture, using inexpensive CPU workers that scale horizontally.
IP address
look-back10–20 impressions
10 / 10 redstop bidding
block duration7-day TTL
Anonymous user ID
consistently blueeligible
10 / 10 redstop bidding
after TTLre-evaluate
Domain or app
verified qualityinclude
mixed qualitybid down
known badremove
Live proof of concept
Prove lower QPS without losing performance.
The pilot tags a live campaign, joins Fou outcomes to the bidstream, places the sanitizer before the bidder, and compares the operating result before and after. Data delivery is designed for AWS US-West-2 through S3 and an IAM role.
QPSRequests reaching the bidder
SPENDMedia and infrastructure cost
REACHEligible campaign scale
OUTCOMECampaign performance
Pass criterion: bidder QPS drops materially while campaign performance does not degrade. The approximately 99% junk-reduction figure is a proof-of-concept target, not a completed benchmark result.
Fou Analytics · powered by Engrammatic
Sanitize the firehose. Keep the bidder focused on value.
A white-labeled, bidder-neutral filtering layer for organizations that already operate their own buying infrastructure.
Discuss a live pilot →