Essays · Operations Intelligence, AI and Quant
Hossein Narimani — Writing
In-depth writing on quant system design, operational AI, SaaS architecture, custom AI agents and founder execution systems.
Probability of Backtest Overfitting (PBO): How to Tell If Your Backtest Is Edge or Luck
The Probability of Backtest Overfitting (PBO) is the chance, from 0 to 1, that your best backtest falls below the median of its rivals out of sample. Test a hundred parameter sets, keep the best, and part of that "best" is luck. The question is not whether...
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What Is Freqtrade? The Practical Architecture of an Automated Trading System
Most people mistake Freqtrade for a trading bot.It is better understood as a systematic execution framework. Without decision logic, risk...
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OHLCV Feature Pipeline Architecture: Designing Feature Registries and Caches for Scalable Trading Systems
Most trading systems do not fail because of the model. They fail because every component interprets market data differently.When a feature has one...
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What Is Quant System Design? Architecture, Components, and How It Differs from a Trading Bot
Most trading bots do not fail because their code is poor. They fail because there is no system behind them.A buy-or-sell signal is not a quant...
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OHLCV Data Quality Checks: What to Validate Before Backtesting or Trading
Most backtests do not fail because of the model. They fail because of the data.If your OHLCV feed is incomplete, inconsistent, or retrospectively...
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