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  2. Decodable text - Wikipedia

    en.wikipedia.org/wiki/Decodable_text

    The texts do not stand alone in a reading classroom, and the type of text used influences how text is encountered and likely the instructional approach. [citation needed] Both decodable texts and whole language readers typically have levels to provide an indication of their reading difficulty. In decodable texts, levels introduce new sounds and ...

  3. Variable-length code - Wikipedia

    en.wikipedia.org/wiki/Variable-length_code

    A code is uniquely decodable if its extension is § non-singular.Whether a given code is uniquely decodable can be decided with the Sardinas–Patterson algorithm.. The mapping = {,,} is uniquely decodable (this can be demonstrated by looking at the follow-set after each target bit string in the map, because each bitstring is terminated as soon as we see a 0 bit which cannot follow any ...

  4. Prefix code - Wikipedia

    en.wikipedia.org/wiki/Prefix_code

    For example, a code with code {9, 55} has the prefix property; a code consisting of {9, 5, 59, 55} does not, because "5" is a prefix of "59" and also of "55". A prefix code is a uniquely decodable code: given a complete and accurate sequence, a receiver can identify each word without requiring a special marker between words. However, there are ...

  5. Phonics - Wikipedia

    en.wikipedia.org/wiki/Phonics

    Reading by using phonics is often referred to as decoding words, sounding-out words or using print-to-sound relationships.Since phonics focuses on the sounds and letters within words (i.e. sublexical), [13] it is often contrasted with whole language (a word-level-up philosophy for teaching reading) and a compromise approach called balanced literacy (the attempt to combine whole language and ...

  6. Locally decodable code - Wikipedia

    en.wikipedia.org/wiki/Locally_decodable_code

    Locally decodable codes can also be concatenated, where a message is encoded first using one scheme, and the resulting codeword is encoded again using a different scheme. (Note that, in this context, concatenation is the term used by scholars to refer to what is usually called composition ; see [ 5 ] ).

  7. Hadamard code - Wikipedia

    en.wikipedia.org/wiki/Hadamard_code

    A locally decodable code is a code that allows a single bit of the original message to be recovered with high probability by only looking at a small portion of the received word. A code is -query locally decodable if a message bit, , can be recovered by checking bits

  8. Self-synchronizing code - Wikipedia

    en.wikipedia.org/wiki/Self-synchronizing_code

    In coding theory, especially in telecommunications, a self-synchronizing code is a uniquely decodable code in which the symbol stream formed by a portion of one code word, or by the overlapped portion of any two adjacent code words, is not a valid code word. [1]

  9. Serial concatenated convolutional codes - Wikipedia

    en.wikipedia.org/wiki/Serial_concatenated...

    Fig 1 is an example of a SCCC. Fig. 1. SCCC Encoder. The example encoder is composed of a 16-state outer convolutional code and a 2-state inner convolutional code linked by an interleaver. The natural code rate of the configuration shown is 1/4, however, the inner and/or outer codes may be punctured to achieve higher code rates as needed.

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