Improvement And Application In Course-Selecting System Of Voluntary Ranking Screening Algorithm

Course-selecting system has pervasive problems such as electing course unfair, inferior real-time and big workload of manual intervention at present. These appearances relate to selecting course algorithm.It is important to select a suitable algorithm in selecting course system because of different merit and demerit, applicable scope of fashionable selecting course algorithms. The aim of subject is to get a scientific and rational selecting course algorithm and make it has good properties.Current fashionable selecting course algorithm based on algorithm principle, execution procedure, applicable scope and merit and demerit was studied, and voluntary ranking screening algorithm was improved. Improvement studies from two aspects were carried out in view of curriculum characteristics. Param weight was added to random number at voluntary ranking screening algorithm when a subject had multiple classes. Multilevel voluntary and screening of the dynamic probability were applied when a subject had a class. Database design, function module design and system safety design were made on selecting course system, then improved voluntary ranking screening algorithm was applied in this system and test was finished.Improved algorithm applied in selecting course system and analysis of test data proved the feasibility of the algorithm, good fairness, real-time and high percentage selecting course were achieved.