Searching Searching agrep (approximate grep) is a fuzzy string searching program, developed by Udi Manber and Sun Wu between 1988 and 1991, for use with the Unix operating system. It was later ported to OS/2, DOS, and Windows. ...more on Wikipedia about "Agrep"
A concordance is an alphabetical list of the principal words used in a book or body of work, with their immediate contexts. Because of the time and difficulty and expense involved in creating a concordance in the pre- computer era, only works of special importance, such as the Bible, Qur'an or the works of Shakespeare, had concordances prepared for them. ...more on Wikipedia about "Concordance (publishing)"
Desktop search is the name for the emerging field of search tools which search the contents of a user's own computer files, rather than searching the Internet. The emphasis is on data mining all the information that is available on the user's PC, including web browser histories, e-mail archives, word-processor documents, and so on. ...more on Wikipedia about "Desktop search"
In text retrieval, full text search (also called free search text) refers to a technique for searching a computer-stored document or database; in a full text search, the search engine examines all of the words in every stored document as it tries to match search words supplied by the user. Full-text searching techniques became common in online bibliographic databases in the 1970s. Most Web sites and application programs (such as word processing software) provide full text search capabilities. Some Web search engines, such as AltaVista employ full text search techniques, while others index only a portion of the Web pages examined by its indexing system. ...more on Wikipedia about "Full text search"
Fuzzy string searching is the name for a category of techniques for ...more on Wikipedia about "Fuzzy string searching"
KWIC is an acronym for Keyword In Context, the most common format for concordance lines. ...more on Wikipedia about "KWIC"
ptx is a Unix utility, named for the permuterm index which can perform the function of the Keyword in Context ( KWIC) search mode. There is a corresponding IBM mainframe utility which performs the same function. ...more on Wikipedia about "Ptx (Unix)"
Generally speaking, a reverse lookup is the reverse of what is a typical query for a given context. ...more on Wikipedia about "Reverse lookup"
A search index, or more precisely a full-text index, is the database which a full-text search engine uses to respond to the query issued by the user. Search index is thus the catalog of content that is indexed by, or known to, the search engine. A search index is typically an inverted index. ...more on Wikipedia about "Search index"
Searching is the act of trying to find something or someone. One can distinguish between two forms of search. One may search for an item that is known to exist, with the intent to locate it, and one may search for an item whose existence is uncertain, in order to ascertain whether it exists or not. Searching can also be a metaphorical act, most frequently in reference to intangibles such as memories and emotions. Web searching benefits from specific techniques, which are detailed in the search engine article. ...more on Wikipedia about "Searching"
Stop words are those words which are so common that they are useless to index or use in search engines or other search indexes. Usually articles, adverbials or adpositions are stop words. In English some obvious stop words would be "a", "of", "the", "I", "it", "you", and "and". Hans Peter Luhn, one of the pioneers in information retrieval is credited with coining the phrase and using the concept in his design and implementation of KWIC indexing programs. ...more on Wikipedia about "Stop words"
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