ANN Based Evaluation of Student's Answers in E-Tests

The paper is focused on the concept of using open questions in an interactive computer system for assessing students' knowledge. The E-test System works as a web system in the local network in the Institute of Applied Computer Science, Lodz University of Technology. The system is used in practice for several years and supports academic teachers in the laborious process of tests' marking. The paper presents a new concept of open questions automatic evaluation by the use of Artificial Neural Networks (ANN). The system was tested experimentally on the basis of tests carried out on a large group of students. The paper reports on the results obtained by the use of new ANN based algorithm which is compared with Authors' previous solution.