character encoding

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character encoding

(character)
(Or "character encoding scheme") A mapping of binary values to code positions and back; generally a 1:1 (bijective) mapping.

In the case of ASCII, this is generally a f(x)=x mapping: code point 65 maps to the byte value 65, and vice versa. This is possible because ASCII uses only code positions representable as single bytes, i.e., values between 0 and 255, at most. (US-ASCII only uses values 0 to 127, in fact.)

Unicode and many CJK coded character sets use many more than 255 positions, requiring more complex mappings: sometimes the characters are mapped onto pairs of bytes (see DBCS). In many cases, this breaks programs that assume a one-to-one mapping of bytes to characters, and so, for example, treat any occurrance of the byte value 13 as a carriage return. To avoid this problem, character encodings such as UTF-8 were devised.
References in periodicals archive ?
Reguart et al (25) evaluated an nCounter CodeSet, including 23 probe pairs designed to bind to 27 specific fusion transcripts; 24 probe pairs targeting wild-type ALK, ROS1, and RET 3' and 5' regions; and 4 probe pairs for the same housekeeping genes used by Lira.
Regardless of the nCounter CodeSet design and considering all the gene fusions, the reported concordance with the gold standard FISH was always greater than 85%.
The above discussion revealed one fact that the detection quality of both visual and information are contradictory, the codewords are required to have closer correlations between codesets, thus only a low power is necessary to bring the desired codeset in advantage over the rival codeset.
In the figure, two solid vectors in the circle present a pair of codewords from the desired codesets, and both dashed vectors denotes the rival codewords.
* Ability to assign Codesets to Columns/Attributes as valid values
The pernership is aimed at offering users with IR codes and codesets allowing for easier setup of Audio/Video equipment and integration due to the common use of the companies' respective products.
Other recommended codesets include XAML with C#/VB code, native C++/C, and HTML5.
The company focuses on providing concise, easy to understand specialty-specific coding advice through codesets, coding tools, unbiased content, interactive education, and results focused auditing and consulting.
The nCounter Copy Number Variation CodeSets from NanoString Technologies enable researchers to interrogate up to 800 regions of the human genome in a single multiplexed reaction with the least hands-on time of any CNV platform.
Chapters discuss a variety of topics: microarray image analysis and spot segmentation, a gene microarray cross platform study, the false discovery rate-based computational framework for sample sized planning in microarray studies, biological sequence analysis by vector-valued functions, segmentation of genomic DNA sequences, a method for constructing large DNA codesets, modeling methods for fell phase classification, the diagnosis of breast cancer using digital mammography, and online mining and annotation of biomedical literature using Google.