less sketchy
TRANSCRIPT
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LessSketchy
by Shih-Ho Cheng
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Many posts seem to be great deals ...
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Many posts seem to be great deals ...
Cheap! Great LocationNo Credit Check
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... but many are really scams!
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... but many are really scams!
How can I prevent this?
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Where to get training set? Step 1
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Just wait... Step 2
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Step 3: Re-visit each post
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99% Legit
1% scams
How to train the model?
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Random Forest
~1% / ~99% k1
k2
kn
Average
Decision
~1% / ~99%
~1% / ~99%
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Balanced Random Forest
50% / 50% k1
k2
kn
Average
Decision
50% / 50%
50% / 50%
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About Shih-Ho Cheng
B.S. Physics / Math Univ. of Virginia
Ph.D. Astro-Particle PhysicsPenn State Univ.
Love board games!
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