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Entropy coding. In information theory, an entropy coding (or entropy encoding) is any lossless data compression method that attempts to approach the lower bound declared by Shannon's source coding theorem, which states that any lossless data compression method must have an expected code length greater than or equal to the entropy of the source.
Huffman tree generated from the exact frequencies of the text "this is an example of a huffman tree". Encoding the sentence with this code requires 135 (or 147) bits, as opposed to 288 (or 180) bits if 36 characters of 8 (or 5) bits were used (This assumes that the code tree structure is known to the decoder and thus does not need to be counted as part of the transmitted information).
Phonics is a method for teaching reading and writing to beginners. To use phonics is to teach the relationship between the sounds of the spoken language ( phonemes ), and the letters ( graphemes) or groups of letters or syllables of the written language. Phonics is also known as the alphabetic principle or the alphabetic code. [1]
Reading comprehensionis the ability to process written text, understandits meaning, and to integrate with what the reader already knows. [1][2][3][4]Reading comprehensionrelies on two abilities that are connected to each other: word reading and language comprehension.[5] Comprehension specifically is a "creative, multifaceted process" that is ...
Password strength. Options menu of the random password generation tool in KeePass. Enabling more character subsets raises the strength of generated passwords a small amount, whereas increasing their length raises the strength a large amount. Password strength is a measure of the effectiveness of a password against guessing or brute-force attacks.
The decoding of a message is how an audience member is able to understand, and interpret the message. It is a process of interpretation and translation of coded information into a comprehensible form. The audience is trying to reconstruct the idea by giving meanings to symbols and by interpreting messages as a whole.
A codec is a device or computer program that encodes or decodes a data stream or signal. [1] [2] [3] Codec is a portmanteau of coder/decoder. [4] In electronic communications, an endec is a device that acts as both an encoder and a decoder on a signal or data stream, [5] and hence is a type of codec. Endec is a portmanteau of encoder/decoder.
Decodable text is a type of text often used in beginning reading instruction. Decodable texts are carefully sequenced to progressively incorporate words that are consistent with the letters and corresponding phonemes that have been taught to the new reader. Therefore, with this type of text new readers can decipher words using the phonics ...