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Equation 3 · Part 3 · Comparing the Main Approaches to Materials Discovery and Degradation

Symbol N_candidates proposed

hvalidated=Nsynthesized and confirmedNcandidates proposedh_{\text{validated}} = \frac{N_{\text{synthesized and confirmed}}}{N_{\text{candidates proposed}}}
Ncandidates proposedN_{\text{candidates proposed}}

What this part means

NcN_candidates proposed occurs below the fraction bar. The quantity above the bar is divided by this expression; zero is excluded as a denominator.

Its job in the formula

NcN_candidates proposed occurs below the fraction bar. The quantity above the bar is divided by this expression; zero is excluded as a denominator.

The passage around this formula

For ML-guided autonomous labs, validated hit rate is the number under direct dispute. A-Lab reports roughly 70 percent of its 58 attempted targets synthesized as intended over its reported run [ 3 ] . GNoME’s own 380,000-structure “stable” count is a computational classification, not an experimental validation count, and the critique from Cheetham and Seshadri argues that an unknown but material fraction of that computational count would not survive independent scrutiny for novelty or synthesizability even before anyone attempts to make them [ 5 ] . Reporting on duplicate structures across high-throughput databases generally reinforces that caution without pinning down a single…

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A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

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