The program system of the management of assessment tools for educational process described in the article. The system reduces the time that the teacher spends on the preparation of test materials, allowing you to create a set of assessment documents in a semi-automatic mode. The system implements the ability to create and manage task banks. Each task in the bank has a set of attributes that are involved in the process of generating assessment documents. The system also implements the ability to automatically generate the required number of variants of the assessment documents. At the same time, the algorithm for generating a set of assessment documents works in such a way that, on the one hand, one set includes the most similar variants of assessment documents in structure, and on the other hand, each assessment document in the set is unique. The algorithm for generating a set of assessment documents is based on the clustering algorithm for categorical data. In this paper a modification of the CLOPE algorithm was submitted, which allows you to automatically determine the required number of clusters, depending on the input data. Also, this modification solves the problem of small clusters and the problem of categorical clustering of numerical attributes. The paper also describes an iterative algorithm for the generation of a set of assessment documents.
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