Orbit will help you to develop and maintain a high visibility profile for your business, products and services on
the Internet.
Glossary of terms
Boolean search
A search allowing the inclusion or exclusion of documents containing certain words through the use of operators such as AND, NOT and OR.
Concept search
A search for documents related conceptually to a word, rather than specifically containing the word itself.
Full-text index
An index containing every word of every document cataloged, including stop words (defined below).
Fuzzy search
A search that will find matches even when words are only partially spelled or misspelled.
Index
The searchable catalog of documents created by search engine software. Also called "catalog." Index is often used as a synonym for search engine. Index is commonly pluralised as "indices." However, Search Engine Watch instead uses the alternative plural form "indexes."
Keyword search
A search for documents containing one or more words that are specified by a user.
Phrase search
A search for documents containing an exact sentence or phrase specified by a user.
Precision
The degree in which a search engine lists documents matching a query. The more matching documents that are listed, the higher the precision. For example, if a search engine lists 80 documents found to match a query but only 20 of them contain the search words, then the precision would be 25%.
Proximity search
A search where users specify that documents returned should have the words near each other.
Query-By-Example
A search where a user instructs an engine to find more documents that are similar to a particular document. Also called "find similar."
Recall
Related to precision, this is the degree in which a search engine returns all the matching documents in a collection. There may be 100 matching documents, but a search engine may only find 80 of them. It would then list these 80 and have a recall of 80%.
Relevancy
How well a document provides the information a user is looking for, as measured by the user.
Search Engine
The software that searches an index and returns matches. Search engine is often used synonymously with spider and index, although these are separate components that work with the engine.
Search Engine Optimisation
Search engine optimisation, (optimization in the US) or SEO is the generic term for making sure your site is optimised to appear as one of the top ranking web sites on a search portal.
Spider
The software that scans documents and adds them to an index by following links. Spider is often used as a synonym for search engine.
Stemming
The ability for a search to include the "stem" of words. For example, stemming allows a user to enter "swimming" and get back results also for the stem word "swim."
Stop words
Conjunctions, prepositions and articles and other words such as AND, TO and A that appear often in documents yet alone may contain little meaning.
Thesaurus
A list of synonyms a search engine can use to find matches for particular words if the words themselves don't appear in documents.
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