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In order to evaluate how well an information retrieval system retrieved topically relevant results, the relevance of retrieved results must be quantified. In Cranfield -style evaluations, this typically involves assigning a relevance level to each retrieved result, a process known as relevance assessment .
c is the number of non-retrieved, relevant documents (sometimes termed "silence"). Recall is thus an expression of how exhaustive a search for documents is. Precision = a : (a + b), where a is the number of retrieved, relevant documents, b is the number of retrieved, non-relevant documents (often termed "noise").
"Reputable" vs. "Appropriate" sources [ edit ] The tricky thing about a requirement of "reputable" sources is that the appropriateness of a source really depends on what the source is being used for, and in some cases a very un-reputable source may be entirely appropriate.
1 Relevant vs relevance. 2 "Details need to be filled in" 2 comments. 3 What is missing? 3 comments. 4 Simple characterization of relevance logic. 2 comments. 5 ...
Relevance level "Medium" – Information that is "once removed" is less directly relevant, should receive a higher level of scrutiny and achieve higher levels in other areas (such as neutrality, weight and strength [further explanation needed] and objectivity of the material and sourcing) before inclusion, but may still may be sufficiently ...
According to James G. March and Johan Olsen, the core intuition of the logic of appropriateness is that humans maintain a repertoire of roles and identities, which provide rules of appropriate behavior in situations for which they are relevant. Following these rules is a relatively complex cognitive process involving thoughtful, reasoning behavior.
The basic idea of relevant implication appears in medieval logic, and some pioneering work was done by Ackermann, [3] Moh, [4] and Church [5] in the 1950s. Drawing on them, Nuel Belnap and Alan Ross Anderson (with others) wrote the magnum opus of the subject, Entailment: The Logic of Relevance and Necessity in the 1970s (the second volume being ...
One of Mill's examples involved an inference that some person is lazy from the observation that his or her sibling is lazy. According to Mill, sharing parents is not at all relevant to the property of laziness (although this in particular is an example of a faulty generalisation rather than a false analogy). [2]