Segmentation


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Related to Segmentation: Market segmentation, Segmentation fault

segmentation

[‚seg·mən′tā·shən]
(communications)
The division of a long communications message into smaller messages that can be transmitted intermittently.
(computer science)
The division of virtual storage into identifiable functional regions, each having enough addresses so that programs or data stored in them will not assign the same addresses more than once.
The division of a large computer program into smaller units, called segments.
(zoology)

Segmentation

 

in linguistics, the linear division of speech or a text into segments that correlate with specific language units. Segments may be meaningful, as in the case of sentences, words, and morphemes (syntactic and morphological segmentation), or not meaningful, as in the case of syllabemes and phonemes (phonetic segmentation). “Dual linguistic segmentation,” a term introduced by A. Martinet, is also used in this regard. Segmentation is a syntagmatic procedure that precedes definition of paradigmatic units, which are established by comparison of segments. Linguists oppose segmental units to the suprasegmental units of language.


Segmentation

 

(1) In morphology, the division of the body of some animals or of individual organs into a linear series of segments, or metameres. (2) In embryology, a series of consecutive divisions of an egg.

segmentation

(networking)
(Or "segmentation and reassembly", SAR) Breaking an arbitrary size packet into smaller pieces at the transmitter. This may be necessary because of restrictions in the communications channel or to reduce latency. The pieces are joined back together in the right order at the receiver ("reassembly"). Segmentation may be performed by a router when routing a packet to a network with a smaller maximum packet size.

The term "segmentation" is used in ATM, in TCP/IP, it is called "fragmentation" an is performed at the IP layer before the "fragments" are passed to the transport layer.

See for example ATM forum UNI 4.0 specification.

References in periodicals archive ?
Region based segmentation is based on some common property of the image.
The number of image segmentation techniques has grown rapidly in the last decades and more and more fields benefit from its advantages.
IDC's new report, North American Software Reseller Segmentation, Sizing, and Satisfaction, explores the structure of North America's large software resellers.
Engel et al, 1995; Kotler, 1991) indicates that segmentation is important.
The value of market segmentation and positioning as marketing tools has been reported in the context of both consumer goods and services (Hooley, 1978; Porter, 1985; Smith & Clark, 1990).
Using the most up-to-date research from the leading marketing publications and material tested in executive seminars, Weinstein presents an in-depth look at the segmentation process.
Table 7: Asia-Pacific Defense Spending Segmentation II: % Share, by Value, 2007 39
Table 7: Asia-Pacific Apparel Retail Market Segmentation II: % Share, by Value, 2007 41
Many firms have not applied segmentation as they see it as cumbersome to implement, and in some ways contrary to the ethos of an industry that is founded on cachet and exclusivity.
Table 2: Germany Logistics Market Segmentation I: % Share, by Value, 2005