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Topic: Encoding

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In the News (Mon 22 Jul 19)

  encoding - perldoc.perl.org
the data is assumed to be in (Latin 1 and) Unicode, not in your native encoding.
For native multibyte encodings (either fixed or variable length), the current implementation of the regular expressions may introduce recoding errors for regular expression literals longer than 127 bytes.
is used as the default encoding for the open pragma.
perldoc.perl.org /encoding.html   (1500 words)

  Encoding - Wikipedia, the free encyclopedia
A character encoding is a code that pairs a set of natural language characters (such as an alphabet or syllabary) with a set of something else, such as numbers or electrical pulses.
A semantics encoding of formal language A in formal language B is a method of representing all terms (e.g.
Encoding is different from encryption in the sense that encoding does not need a key (or a salt), while encryption does need it.
en.wikipedia.org /wiki/Encoding   (192 words)

 Character encoding - Wikipedia, the free encyclopedia
This involves an encoding form which specifies the conversion of the integer code into a series of integer code values that facilitate storage in a system that uses fixed bit widths.
An encoding scheme then converts code values to bit sequences, with attention given to things like platform-dependent byte order issues (for example, D800 DC00 might become 00 D8 00 DC on an Intel x86 architecture).
Some of these simple encodings use data compression techniques to represent a large repertoire with a smaller number of codes.
en.wikipedia.org /wiki/Character_encoding   (584 words)

 PEP 0263 -- Defining Python Source Code Encodings
The encoding information is then used by the Python parser to interpret the file using the given encoding.
To define a source code encoding, a magic comment must be placed into the source files either as first or second line in the file: #!/usr/bin/python # -*- coding: name> -*- More precisely, the first or second line must match the regular expression "coding[:=]\s*([-\w.]+)".
Embedding of differently encoded data is not allowed and will result in a decoding error during compilation of the Python source code.
www.python.org /peps/pep-0263.html   (788 words)

 RFC 1505 (rfc1505) - Encoding Header Field for Internet Messages   (Site not responding. Last check: )
The encoding keywords may either be an actual series of encoding steps the encoder used to generate the message part or may merely be used to more precisely identify the type of encoding (as in the use of the keyword "Signature").
Encoding: 458 uuencode LZW tar (Unix binary object) 2.4 Comments Comments enclosed in parentheses may be inserted anywhere in the encoding field.
Encoding: 14 Text, 3 Text Signature A usenet news posting program should generate an encoding showing which is the text and which is the signature area of the posted message.
www.faqs.org /rfcs/rfc1505.html   (5049 words)

 Manchester Encoding
Manchester encoding is a synchronous clock encoding technique used by the OSI physical layer to encode the clock and data of a synchronous bit stream.
In the Manchester encoding shown, a logic 0 is indicated by a 0 to 1 transition at the centre of the bit and a logic 1 is indicated by a 1 to 0 transition at the centre of the bit.
The encoding may be alternatively viewed as a phase encoding where each bit is encoded by a postive 90 degree phase transition, or a negative 90 degree phase transition.
www.erg.abdn.ac.uk /users/gorry/course/phy-pages/man.html   (664 words)

Encoding of chromosomes is one of the problems, when you are starting to solve problem with GA. Encoding very depends on the problem.
Binary encoding is the most common, mainly because first works about GA used this type of encoding.
On the other hand, for this encoding is often necessary to develop some new crossover and mutation specific for the problem.
cs.felk.cvut.cz /~xobitko/ga/encoding.html   (509 words)

 Cotse - Connected: An Internet Encyclopedia - 5. The Content-Transfer-Encoding Header Field
There is a tradeoff between the desire for a compact and efficient encoding of largely-binary data and the desire for a readable encoding of data that is mostly, but not entirely, 7-bit data.
If a bit stream is to be encoded via one of these mechanisms, it must first be converted to an 8-bit byte stream using the network standard bit order ("big-endian"), in which the earlier bits in a stream become the higher-order bits in a byte.
All encodings that are desired for bodies of type multipart or message must be done at the innermost level, by encoding the actual body that needs to be encoded.
www.cotse.com /CIE/RFC/1521/5.htm   (1690 words)

 High Density Bipolar Order 3 Encoding   (Site not responding. Last check: )
The encoding rules follow those for AMI, except that a sequence of four consecutive 0's are encoding using a special "violation" bit.
(the corresponding encoding using AMI is " + 0 0 0 0 - + ").
(the corresponding encoding using AMI is " + 0 - 0 0 0 0 0 + - 0 0 0 0- + 0 0 0 0 0 0 ").
www.erg.abdn.ac.uk /users/gorry/course/phy-pages/hdb3.html   (451 words)

Simply adding bits to a gamma encoding does not result in a good distribution of steps, because we can no longer assume that the viewer is adapted to a particular luminance level, and the relative quantization error tends towards infinity as the luminance tends towards zero.
One of the first groups to arrive at a standard for HDR image encoding was the Computer Graphics Division of Lucasfilm, which branched off in the mid-80’s to become Pixar.
Although the basic encoding is 48 bits/pixel as opposed to 32 for the LogLuv and RGBE formats, the additional precision is valuable when applying multiple blends and other operations where errors might accumulate.
www.anyhere.com /gward/hdrenc/hdr_encodings.html   (6879 words)

 Encoding Class (System.Text)
Encoding is the process of transforming a set of Unicode characters into a sequence of bytes.
Although numerous non-Unicode encodings are supported for compatibility with legacy applications, the Unicode encodings (UTF8Encoding, UnicodeEncoding, and UTF32Encoding) are recommended when there is a choice.
Optionally, the Encoding provides a preamble which is an array of bytes that can be prefixed to the sequence of bytes resulting from the encoding process.
msdn2.microsoft.com /en-us/library/system.text.encoding.aspx   (1454 words)

 EECS 745: Group 10: Encoding and Design   (Site not responding. Last check: )
Hence, the encoding scheme that we should choose for wireless networks must be capable of yielding maximum throughput using minimum bandwidth, that is, be able to transmit maximum amount of data in the available limited bandwidth.
We definitely cannot employ Manchester encoding for wireless networks as it doubles the rate at which signal transitions are made on the link, which means that the receiver has half the time to detect each pulse of the signal.
More the number of state transitions involved in the encoding scheme, more is the frequency of the signal and more is the keying that has to be performed by network adapter.
www.ittc.ku.edu /~irfancb/745/direct_link/encoding.html   (580 words)

 Extensions to RSS 0.94 for Content and Encoding Formats
This proposal suggests that the default content format be considered equivalent to the MIME type "text/html" and that the default encoding be that specified for plain text appearing in XML documents (i.e., entity encoding).
The value of an encoding attribute should conform to the content-coding portion of the Content-Encoding specification in section 14.11 of RFC 2616.
In all cases, the absence of an encoding syntax specification, the encoding format is assumed to be normal XML entity encoding.
radio.weblogs.com /0108814/stories/2002/08/31/extensionsToRss094ForConte.html   (1088 words)

 Encoding Class
This encoding supports all Unicode character values, and can also be accessed as code page 65000.
When the data to be converted is only available in sequential blocks (such as data read from a stream), an application can use a Decoder or an Encoder to perform the conversion.
Through an encoding, the GetBytes method is used to convert arrays of Unicode characters to arrays of bytes, and the GetChars method is used to convert arrays of bytes to arrays of Unicode characters.
msdn.microsoft.com /library/default.asp?url=/library/en-us/cpref/html/frlrfsystemtextencodingclasstopic.asp   (1034 words)

 Encode::Encoding(3)   (Site not responding. Last check: )
As mentioned in Encode, encodings are (in the current implementation at least) defined as objects.
The logic is that the "unchecked" case is useful when the encoding is part of a stream which may be reporting errors (e.g.
Also, the encoding is best placed to know what the correct replacement character is, so if that is the desired behaviour then letting low level code do it is the most efficient.
h30097.www3.hp.com /docs/iass/OSIS_63/MAN/MAN3/0511____.HTM   (760 words)

 RFC 1154 (rfc1154) - Encoding header field for internet messages
The use of Encoding updates RFC 1049 (Content-Type), and is a suggested update to RFCs 1113, 1114, and 1115 (Privacy Enhancement) [4,7,8].
The Encoding header field permits the message body itself to be further broken up into parts, each part also separated from the next by an apparently blank line.
Text This indicates that the message is in no particular encoded format, but is to be presented to the user as is. The full range of the ASCII character set is used.
www.faqs.org /rfcs/rfc1154.html   (1544 words)

 5.2. Base64 Content-Transfer-Encoding
The encoding and decoding algorithms are simple, but the encoded data are consistently only about 33 percent larger than the unencoded data.
Other popular encodings, such as the encoding used by the uuencode utility and the base85 encoding specified as part of Level 2 PostScript, do not share these properties, and thus do not fulfill the portability requirements a binary transport encoding for mail must meet.
When encoding a bit stream via the base64 encoding, the bit stream must be presumed to be ordered with the most-significant-bit first.
www.freesoft.org /CIE/RFC/1521/7.htm   (694 words)

 SP - Character sets
This conversion is determined by the encoding associated with the storage object.
An encoding may be specified using the name of a mapping from sequences of characters to sequences of bytes.
A bit combination with the 0x8000 and 0x80 bits set is encoded by the sequence of bytes with which the SJIS encoding encodes the character whose number in JIS X 0208 added to 0x8080 is equal to the bit combination.
www.jclark.com /sp/charset.htm   (1176 words)

 AudioFormat.Encoding (Java 2 Platform SE v1.4.2)
The encoding includes aspects of the sound format other than the number of channels, sample rate, sample size, frame rate, frame size, and byte order.
One ubiquitous type of audio encoding is pulse-code modulation (PCM), which is simply a linear (proportional) representation of the sound waveform.
Besides PCM, other encodings include mu-law and a-law, which are nonlinear mappings of the sound amplitude that are often used for recording speech.
java.sun.com /j2se/1.4.2/docs/api/javax/sound/sampled/AudioFormat.Encoding.html   (290 words)

 Pantek - Expert Linux and Open Source Services: : RFC #1154: Encoding header field for internet messages. D. Robinson, ...
Format of the Encoding Field The format of the Encoding field is: Robinson & Ullmann [Page 1] RFC 1154 Encoding Header Field for Internet Messages April 1990 [ [], ]* [] [] where: := a decimal integer := a single alphanumeric token starting with an alpha := keyword-dependent options 3.2.
Encoding Version Numbers In general, version numbers for encodings, when not actually available within the contents of the encoded information, will be handled as options.
Message This encoding indicates that the body part is itself in the format of an Internet message, with its own header part and body part(s).
www.pantek.com /library/general/rfc/rfc1154.html   (1534 words)

 Encoding of TFSs
This is not desirable, and Penn penn-encoding proposed a method for reducing the arity of terms in a flat encoding.
This encoding will be used in the preliminary experimental evaluation presented in Chapter 7 (specific details will be given in Chapter 7.)
Penn1999b], where features are encoded based on their feature-graph colouring, but the argument position for each feature is statistically chosen.
www.cs.toronto.edu /~mcosmin/publications/thesis/node32.html   (304 words)

 Digital Encoding
This document will describe the requirements from an encoding technique and show a brief description of a few popular ones.
From the simplest NRZ which is used in RS232 based protocols, through PE which is used in Ethernet up to the most complicated HDB3 which is used in telephone services (as the output of E1 and input of E2 for example).
The choice of the encoding technique is up to the designer who knows the restrictions of bandwidth, cabling systems, data rate etc.
www2.rad.com /networks/1994/digi_enc/main.htm   (926 words)

 Densely Packed Decimal encoding
An improvement to the encoding which has the same advantages but is not limited to multiples of three digits is described.
In contrast, Chen-Ho encoding requires that the compressed representation be a multiple of 10 bits and hence that the number of decimal digits always be a multiple of three.
The encodings for one or two decimal digits are right-aligned in the ten bits (the remaining bits being 0).
www2.hursley.ibm.com /decimal/DPDecimal.html   (870 words)

 base32 Encoding -- Waterken Inc.
The base32 encoding is designed to represent arbitrary sequences of octets in a form that is suitable for inclusion in a URI or filename.
The encoded data may be a cryptographic hash or a nonce.
The base32 encoding defined by this specification is derived from the base32 encoding defined by RFC 3548.
www.waterken.com /dev/Enc/base32   (414 words)

 encoding: Blogs, Photos, Videos and more on Technorati
Freaking MySQL Character Set Encodings November 5, 2007 – 12:40 pm Derek Sivers‘ plan, with all it’s bin2hex and regexp and back and forth between MySQL and PHP almost looks good compared to what I’m about to do.
Encoding video can be scary, but it doesn't have to be
Editopia, (www.editopia.com) an open source technology company for the online video market, today announces the release of NCode, a server-side video encoding solution that enables web developers to easily add video to flash encoding to their websites.
www.technorati.com /tag/encoding   (655 words)

 HTML Document Representation
As some character encodings cannot directly represent all characters an author may want to include in a document, HTML offers other mechanisms, called character references, for referring to any character.
The "charset" parameter identifies a character encoding, which is a method of converting a sequence of bytes into a sequence of characters.
These tools may employ any convenient encoding that covers most of the characters contained in the document, provided the encoding is correctly labeled.
www.w3.org /TR/REC-html40/charset.html   (2143 words)

 RealJukebox FAQ - Constant and Variable Bit Rate Encoding
Constant Bit Rate (CBR) encoding is an encoding method that varies the quality level in order to ensure a consistent bit rate throughout an encoded file.
Variable Bit Rate encoding was developed for use when consistent audio quality is the top priority and constant or predictable encoded MP3 file size is not critical.
VBR encoding should not be used when you need to predict and/or limit the size of the MP3 file.
service.real.com /help/faq/rjbvbrfaq.html   (765 words)

 Line Encoding   (Site not responding. Last check: )
Unipolar line encoding works well for inside machines--where the signal path is short-- but is unsuitable for long distances, due to the presence of stray capacitance in the transmission medium.
Polar line encoding is the simplest pattern that eliminates most of the residual DC problem.
Polar and Unipolar line encoding both share the same synchronization problem: if there is a long string of logical 1s or 0s, the receive oscillator may drift and become unsynchronized.
www.thelinuxreview.com /howto/intro_to_networking/c2161.htm   (682 words)

 Microsoft Windows Media - Automating the Encoding Process
After you set up a batch encoding list, you can save your encoding session and use it again; this feature is useful when you encode the same files on a regular basis.
For example, if you have multiple instances of an encoding application running, the sample application enumerates the encoding applications, and then allows you to monitor their status on one page.
Helps you monitor the status of the encoding process, which is useful when your encoding applications are running on remote computers.
www.microsoft.com /windows/windowsmedia/howto/articles/AutomatingEncoding.aspx   (1466 words)

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