3 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Relevance \Rel"e*vance\ (r?l"?*vans), Relevancy \Rel"e*van*cy\
(-van*s?), n.
1. The quality or state of being relevant; pertinency;
applicability.
Its answer little meaning, little relevancy bore.
--Poe.
2. (Scots Law) Sufficiency to infer the conclusion.
From WordNet r 1.6 [wn]:
relevance
n : the relation of something to the matter at hand [syn: {relevancy}]
[ant: {irrelevance}]
From The Free On-line Dictionary of Computing (13 Mar 01) [foldoc]:
relevance
A measure of how closely a given object
(file, {web page}, database {record}, etc.) matches a user's
search for information.
The relevance {algorithms} used in most large web {search
engines} today are based on fairly simple word-occurence
measurement: if the word daffodil" occurs on a given page,
then that page is considered relevant to a {query} on the word
"daffodil"; and its relevance is quantised as a factor of the
number of times the word occurs in the page, on whether
daffodil" occurs in title of the page or in its META
keywords, in the first {N} words of the page, in a heading,
and so on and similarly for words that a {stemmer} says are
based on "daffodil".
More elaborate (and resource-expensive) relevance algorithms
may involve thesaurus (or {synonym ring}) lookup; e.g. it
might rank a document about narcissuses (but which may not
mention the word daffodil" anywhere) as relevant to a query
on "daffodil", since narcissuses and daffodils are basically
the same thing Ditto for queries on jail" and "gaol", etc
More elaborate forms of thesaurus lookup may involve
multilingual thesauri (e.g. knowing that documents in Japanese
which mention the Japanese word for narcissus" are relevant
to your search on "narcissus"), or may involve thesauri (often
auto-generated) based not on equivalence of meaning, but on
word-proximity, such that bulb" or bloom" may be in the
thesaurus entry for "daffodil".
{Word spamming} essentially attempts to falsely increase a web
page's relevance to certain common searches.
See also {subject index}.
(1997-04-09)
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