Ditty,<div><br></div><div>Article quality is inherently subjective in the hard-AI sense. A panel of judges will consider accurate articles full of spelling, grammar, and formatting errors superior in quality to hoax, biased, spam, or out-of-date articles with perfect grammar, impeccable spelling, and immaculate formatting.</div><div><br></div><div>In my studies of the short popular vital articles (WP:SPVA) the closest correlation with subjective mean opinion score quality I&#39;ve found so far is sentence length. But it has diminishing returns and the raw correlation is +0.2 at best.</div><div><br></div><div>The entirely subjective nature of article quality is additional support for automating accuracy review.</div><div><br></div><div>Best regards,</div><div>James</div><div><br></div>