Fig. 3From: An improved algorithm based on Bloom filter and its application in bar code recognition and processingAlgorithm schematic. The symbol ai represents any element in A. For each element to amplify the difference by function g (), which makes g (ai) = a*i, the ai is mapped to one part of the filter through d hash functions(hi : X → {1. . m1}), and a*i is mapped to another part of the filter through k hash functions(fj : X∗ → {m1. . m})Back to article page