Advanced Feature Selection

SignalSifter

Weight of Evidence · Information Value · Gini · KS · GPT-4o Insights

IV / WoE Engine GPT-4o Powered Interactive Plotly Memory Agent

📐 IV Interpretation Guide

IV RangeStrengthAction
IV > 0.5Very StrongInvestigate for data leakage
0.3 – 0.5StrongInclude, explore interactions
0.1 – 0.3ModerateFeature engineering opportunity
0.02 – 0.1WeakInvestigate data quality
< 0.02Not UsefulExclude or redesign

Gini Coefficient (0–1) · KS Statistic (0–1) · higher values = better separation

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🤖 IV / WoE Expert Agent

GPT-4o

Ask anything about your IV results. The agent has full context of your current analysis.

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🔬 General Data Science Agent

GPT-4o + Memory

Plotly visualisations · Python code · SQL queries · Statistical analysis — with full conversation memory.

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