Equation 4 · Part 1 · How AI and Cybersecurity Actually Work
Symbol p
What this part means
the when.
Its job in the formula
p is one of the signed contributions combined to compute the quantity on the left.
Full expression→Symbol p→Article meaning
Where the article explains it
When p is small, which it almost always is for genuine, successful misuse against a well-defended system, precision collapses toward zero even for a detector with a very low false-positive rate, simply because the pool of benign traffic the false-positive rate applies to is so much larger than the pool of real events.
The passage around this formula
…the thing it is looking for actually is. If a detection system has a true-positive rate and false-positive rate , and the true prevalence of the underlying misuse event in the traffic it sees is p , the fraction of flagged events that are genuinely misuse — the precision an analyst actually experiences — is . When p is small, which it almost always is for genuine, successful misuse against a well-defended system, precision collapses toward zero even for a detector with a…
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
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