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Equation 3 · Part 5 · Comparing the Main Approaches to Materials Discovery and Degradation

fraction

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

What this part means

Divide the expression above the line by the one below it.

Its job in the formula

The expression above the fraction bar is divided by the complete expression below it. The denominator must not be zero.

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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Learn the underlying idea

A fraction a/b means a divided by b. The top number is the numerator; the bottom number is the denominator, and it cannot be zero.

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Sources cited in the surrounding passage

These citations provide research context; check each source for the exact claim it supports.