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Posts by whozahm3d

@whozahm3d

Ali Ahmad

FAST’ 27 | DS Senior | Interested in AI & ML | X Kohatian
Lahore linktr.ee/whozahm3d Joined June 2026
645 Points • 6 Badges • 2 Connections • 2 Followers • 2 Following
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Comments by whozahm3d

Jun 19 • Articles • 4 min read
I Built a Fraud Detection System That Catches 99.76% of Fraud — Here's Everything I Learned
There is a number that haunts every fraud detection engineer: 0.13%. That is the fraud rate in the PaySim dataset — 8,213 fraudulent transactions buried inside 6,362,620 legitimate ones. It sounds small. It is not. At that ratio, a model that predic...
post-cover-20804
5 Reactions 4 Comments
Jun 18 • Articles • 4 min read
I Built a Fraud Detection System That Catches 99.76% of Fraud — Here's Everything I Learned
There is a number that haunts every fraud detection engineer: 0.13%. That is the fraud rate in the PaySim dataset — 8,213 fraudulent transactions buried inside 6,362,620 legitimate ones. It sounds small. It is not. At that ratio, a model that predic...
post-cover-20804
5 Reactions 4 Comments
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