Objective standard based automatic oral evaluation system

Abstract

The invention relates to an objective standard based automatic oral evaluation system comprising a recognition aligning unit, a quantization evaluation unit and a standard adjustment unit, wherein the recognition aligning unit receives oral voice messages and a answer range and evaluation index information, recognizes and aligns input oral voice messages, generates characters from the oral voice messages and aligns the characters with voices; the standard adjustment unit carries out quantization evaluation standard adjustment on specific examination objects, targets and demands by an examination organization and generates and outputs a final quantization evaluation standard; and the quantization evaluation unit is respectively connected with the recognition aligning unit and the standard adjustment unit, receives quantization evaluation index information, quantization evaluation standard information output by the standard adjustment unit and character recognition aligning information output by the recognition aligning unit, extracts oral evaluation features according to the three information, caries out automatic evaluation and diagnosis and generates evaluation results and diagnosis report information.

Description

technical field [0001] The invention relates to the fields of voice digital signal processing, machine learning and pattern recognition, and expert oral assessment standards. Specifically, according to the test questions of the oral assessment expert group and the corresponding answer ranges, quantitative indicators, and assessment standards, the spoken language signals of examinees are analyzed by computers. Feature extraction, identification and alignment, and then extraction of oral evaluation features related to expert quantitative indicators, and evaluation results and diagnostic reports are given according to specific evaluation standards. Background technique [0002] With the development of global economic integration, learning a second language and improving communication skills have become an urgent need. Strengthening oral language learning and improving the ability to use the language in practice have gradually been valued by foreign language teachers and learner...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems of low marking efficiency and poor scoring consistency existing in oral manual assessment, and designs and develops an automated oral assessment system based on objective standards. Combined with oral assessment expert knowledge, the accuracy of expert assessment is achieved, and the efficiency of marking is greatly improved and objective justification (consistency)

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