Georgy Totkov

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Generating different tests' versions to satisfy the needs of different users is one of the biggest challenges that e-learning systems designers are faced with. This research deals with the basic elements of Computer Adaptive Tests (CAT) construction, as a way to resolve the abovementioned issue. Test generation has two main components: a calibrated bank of(More)
Many tools for online collaboration, information and file sharing are currently employed to facilitate the process of online education. However, as stated in [14] the existing E-learning environments are not mature enough and only a small set of them provide functionality for defining reusable learning entities, reliable publishing and republishing(More)
Adaptive e-learning systems enhance efficiency in education by providing personalized e-course content (e.g., learning materials and activities) that changes with respect to learners' needs and achievements. An adaptive approach is presented in this paper, which is based upon accumulative digital activities and which is ordered according to pre-established(More)
In the research are presented experimental software for simultaneous remote project management and project documentation tracking of several projects simultaneously. Tracking and management functionality gives opportunity the teams, tasks, resources, roles of members, reports, papers and etc. A documents repository is appointed to every project. The(More)
The paper presents the architecture of a software frame which supports almost all known types of test items in extended IMS standard (based on the so called accumulative question types) and provides a way to effectively realize adaptability by utilizing an executable test process model. The architecture of the experimented software frame is modular which(More)
The paper discuss web-based software system LOGOPED 2.0 for modeling and applying of methods for communicative disorders therapy. The system gives up interactive means to main participants in virtual therapeutical process, including creating and experimenting on therapeutical methods (for speech therapist), to pass complete therapeutical course (for people(More)
The paper discusses software and hardware that enables persons with disabilities to access and use computers. The Bulgarian portal for people with disabilities has been created as leading source of information, communication and repository of assistive tools and technologies. It is presented LOGOPED -- a system for automated development of the intonation,(More)
Creating reliable, reusable and efficient tests is a long and time-consuming process. One of the most important stages is creating a question bank. An approach to automatized generation of test items of different types is presented in this paper. It is based on the accumulative method that uses stored and assessed test items in the process of doing the(More)