Patent ID: 9058809
Filing Date: 2015-06-16
Classification: G06F,G10L

Abstract:
1. A method for automated speech recognition, wherein audio input information is matched to data base information stored in a data base by at least one matching algorithm, and wherein before the input information is matched to the data base information, the data base information is arranged in the data base in a data base information structure, the method comprising: inputting audio input information from an audio input device; performing a structural analysis of the content of the data base by comparing structural parameters of the data base content to predefined requirements and using the results of the structural analysis to decide whether a rearrangement procedure of the data base information from a data base information structure to a matching information structure is required; if a rearrangement procedure of the data base information is required: selecting one of multiple rearrangement procedures based on the result of the structural analysis, the selected rearrangement procedure rearranging the data base information from the data base information structure into a matching information structure which differs from the data base information structure, wherein the selected one of the multiple rearrangement procedures in the step of rearranging performs an algorithm that addresses the relationship between entries of the data base information, which are elements in a word list, by quantifying a degree of similarity between the entries by measuring a relevant phonetic distance between the entries and rearranging the entries in a way that is a function of the degree of similarity; redistributing entries corresponding to words whose phonetic distance is below a phonetic distance threshold into subdirectories so that the entries whose phonetic distance is below the phonetic distance threshold are separated in different subdirectories in order to disrupt the forming of recognition artifacts due to their similarity; and applying a speech recognition program that includes the at least one matching algorithm to the rearranged data base information and matching the audio input information to the rearranged data base information to recognize the speech content of the audio input information from the audio input device.