Structural Pattern Recognition

    Structural pattern recognition [33, 34, 35], sometimes referred to as syntactic pattern recognition due to its origins in formal language theory, relies on syntactic grammars to discriminate between data from different groups based upon the morphological interrelationships (or interconnections) present within the data.

    Fig. 2.3 demonstrates how both approaches can be applied to the same identification problem. A summary of the differences between statistical and structural approaches to pattern recognition is shown in Table 2.1.