Adjustable hierarchical scoring method and system
An adjustable hierarchical scoring method is disclosed. A hierarchical scoring structure for speech-sound data is generated. Historical data of speech-sound scoring for the speech-sound data is retrieved from a speech-sound practice database while a professional scoring result for the hierarchical scoring structure of the speech-sound data is being collected. A weight-adjusting operation is performed according to the historical data of speech-sound scoring and the professional scoring result to calculate optimum adjusting weights for each layer of the hierarchical scoring structure. Retrieved speech-sound data of a student is scored using a speech-sound scoring system and a weighted average operation is performed to the score of the speech-sound data of the student according to a corresponding adjusting weight, thereby generating the final score of the speech-sound data of the student.
1. An adjustable hierarchical scoring method, used in an adjustable hierarchical scoring system comprising a processor to perform the following steps of:
generating a hierarchical scoring structure for speech-sound data;
retrieving historical data of speech-sound scoring for the speech-sound data from a speech-sound practice database while a scoring result by a professional language instructor for the hierarchical scoring structure of the speech-sound data is being collected;
performing a weight-adjusting operation according to the historical data of speech-sound scoring and the scoring result to calculate optimum adjusting weights for each layer of the hierarchical scoring structure;
scoring retrieved speech-sound data of a student using a speech-sound scoring system; and
performing a weighted average operation to the score of the speech-sound data of the student according to a corresponding adjusted weight, thereby generating the adjusted score of the speech-sound data of the student.
2. The adjustable hierarchical scoring method as claimed in claim 1 , wherein optimum adjusted weights for each layer of the hierarchical scoring structure is calculated using an iterative least-squares method.
3. The adjustable hierarchical scoring method as claimed in claim 1 , wherein the speech-sound data comprises sentences, words, syllables, and phonemes.
4. An adjustable hierarchical scoring system, comprising a processor to execute:
a speech-sound scoring system, scoring retrieved speech-sound data of a student;
a speech-sound practice database, storing historical data for the speech-sound data scored by the speech-sound scoring system;
a weight database, storing calculated adjusted weights;
a score input interface, retrieving a scoring result by a professional language instructor for a hierarchical scoring structure of the speech-sound data;
a hierarchical weight-adjusting module, retrieving the historical data of speech-sound scoring for the speech-sound data from the speech-sound practice database and simultaneously collecting the scoring result for the hierarchical scoring structure of the speech-sound data, performing a weight-adjusting operation according to the historical data of speech-sound scoring and the scoring result to calculate optimum adjusting weights for each layer of the hierarchical scoring structure, and transmitting the calculated adjusted weights to the weight database; and
a hierarchical weighting and scoring module, when speech-sound data of a student is retrieved, scoring the retrieved speech-sound data of the student using the speech-sound scoring system, selecting an adjusted weight corresponding to the speech-sound data of the student from the weight database, and performing a weighted average operation to the score of the speech-sound data of the student according to the selected adjusted weight, thereby generating the adjusted score of the speech-sound data of the student.
5. The adjustable hierarchical scoring system as claimed in claim 4 , wherein the hierarchical weight-adjusting module calculates optimum adjusting weights for each layer of the hierarchical scoring structure using an iterative least-squares method.
6. The adjustable hierarchical scoring system as claimed in claim 4 , wherein the speech-sound data comprises sentences, words, syllables, and phonemes.
7. A non-transitory computer-readable medium encoded with computer executable instructions for performing an adjustable hierarchical scoring method, wherein the computer executable instructions comprise:
generating a hierarchical scoring structure for speech-sound data;
retrieving historical data of speech-sound scoring for the speech-sound data from a speech-sound practice database while a scoring result by a professional language instructor for the hierarchical scoring structure of the speech-sound data is being collected;
performing a weight-adjusting operation according to the historical data of speech-sound scoring and the professional scoring result to calculate optimum adjusting weights for each layer of the hierarchical scoring structure;
scoring retrieved speech-sound data of a student using a speech-sound scoring system; and
performing a weighted average operation to the score of the speech-sound data of the student according to a corresponding adjusted weight, thereby generating the adjusted score of the speech-sound data of the student.