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One Explanation Is a Single Point of Failure: RashomonLLM Turns Explanations Into Predictive Feedback

TL;DR for operators Should an explanation merely describe a model decision, or should it help the system make a better next prediction? The paper tests the second possibility: explanations guide prediction, and prediction errors become feedback for revising the reasoning used next.1 The strongest evidence comes from the KuaiLive component tests. The full system reached 0.771 accuracy, versus 0.650 for one-shot prediction without explanation and 0.711 for an iterative variant given matched-length but uninformative placebo explanations. The result does not show that generating more natural-language text inherently improves a model; it shows that, within this design, removing authentic explanatory content or replacing it with placebo text materially reduces performance. ...

August 15, 2026 · 7 min · Zelina
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Causal Brews: Why Your Feature Engineering Needs a Graph Before a Grid Search

Feature engineering has always had a faint smell of kitchen experimentation. Take the raw variables. Add ratios. Try logs. Multiply this by that. Remove the ones that look useless. Feed everything into XGBoost. Pretend the process was scientific because the final notebook has a clean cross-validation table. In many business analytics teams, this is not a caricature. It is Tuesday. ...

February 19, 2026 · 17 min · Zelina