Can $100 become $4,000 in a month of trading? I simulated it 2,500 times
Lolo's Ledger has a goal reality check: a Monte Carlo simulation that tells a trader, before they start, whether their target is possible at safe risk.
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Chidi's Blog
Short, practical notes from real projects: the decision I made, the numbers behind it, and what I would do differently.
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A credit-score cutoff is a business decision, not a model output
LoanLens scores 55,518 real Prosper loans. The model ranks borrowers; the cutoff that decides who gets a loan comes from a policy table.
If you can't retrain it twice and get the same numbers, you can't trust them
Moniguard's metrics used to change on every run. Three small fixes made the retrain reproducible, and CI now proves it on every retrain.
Letting managers ask data questions in plain English, safely
How my BI agent keeps metrics consistent with a semantic layer, and why its SQL guard parses queries instead of matching text.
Why my fraud model reports PR-AUC, not accuracy
In Moniguard, about 2.8% of transactions are fraud. Here is why accuracy would flatter a useless model, and what I report instead.
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