adaptive coding - meaning and definition. What is adaptive coding
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What (who) is adaptive coding - definition


Adaptive coding         
Adaptive coding refers to variants of entropy encoding methods of lossless data compression. They are particularly suited to streaming data, as they adapt to localized changes in the characteristics of the data, and don't require a first pass over the data to calculate a probability model.
Adaptive Huffman coding         
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  • Slide_And_Increment(internal node) sliding step 4. Now the 'P' points to the former parent ( as in the case of internal node according to algorithm)
  • Slide_And_Increment(internal node) sliding starts. P is an internal node.
  • Slide_And_Increment(internal node) sliding step 3. Now we increase the weight to 9. Thus the '''''invariant is maintained''''' as the current node is an internal node and should occur in front of leaf nodes of equal weight as we have increased the weight.
  • Slide_And_Increment(internal node) sliding step 2. Node P slides in front of next block of leaves nodes, with weight wt+1.
  • Slide_And_Increment(leaf node) sliding step 4. Method comes to an end. P is the new parent.
  • Slide_And_Increment(leaf node) sliding starts. P is a leaf node.
  • Slide_And_Increment(leaf node) sliding step 3. Here we increase the current weight by 1.
  • Slide_And_Increment(leaf node) sliding step 2. As P is leaf node, it slides in front of next block nodes of equal weight.
ADAPTIVE CODING TECHNIQUE
Adaptive Hufman coding; Dynamic Huffman coding; Algorithm V; Vitter's algorithm; Vitter algorithm; Algorithm FGK; FGK; FGK algorithm; Adaptive huffman coding
Adaptive Huffman coding (also called Dynamic Huffman coding) is an adaptive coding technique based on Huffman coding. It permits building the code as the symbols are being transmitted, having no initial knowledge of source distribution, that allows one-pass encoding and adaptation to changing conditions in data.
Context-adaptive variable-length coding         
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Context-adaptive variable-length coding (CAVLC) is a form of entropy coding used in H.264/MPEG-4 AVC video encoding.