Edited sentence: A standard entropy encoding such as Huffman coding or arithmetic coding then uses these probabilities to produce a code for the values that encodes more frequent symbols in less bits.In practice, it is more common to encode the sequence of output symbols using an adaptive entropy encoder.Such a coder estimates the probability that the next symbol will be each possible value, based on the observed frequency of that value so far, assigning some small minimum probability to symbols that have not yet been used.The simple scheme described above focuses on the LZW algorithm itself, using a simple fixed-length code to store the values