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This is a medium difficulty Machine Learning question, commonly asked during Technical Screen rounds at Citadel.

What role is this question designed for?

This question is commonly asked for Data Scientist candidates at Citadel during technical interviews.

Explain factor leakage checks and IC/ICIR filtering

Last updated: Mar 29, 2026

Quick Overview

This question evaluates competency in factor-based predictive modeling, including detection of information leakage, use of information coefficient (IC) and ICIR for factor screening, construction and training of alpha models, and controls for overfitting in finance-specific time series.

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Explain factor leakage checks and IC/ICIR filtering

Citadel

Oct 9, 2025, 12:00 AM

mediumData ScientistTechnical ScreenMachine Learning

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