2D Graphical Interaction In Elearning
Journal Title: Romanian Journal of Human - Computer Interaction - Year 2012, Vol 5, Issue 2
Abstract
Sketching is often used by people to express ideas. Some concepts that are hard to explain in words can be easily expressed using a figure or drawing. As the pen-based user interfaces became common, many systems that use this type of interaction were built. The traditional methods used in sketch recognition can be grouped into three categories: aspect-based recognition, gesture-based recognition and geometry-based recognition. Although each of these methods has advantages and disadvantages, the geometry-based methods have proved to be the most suitable for building multi-domain recognizers. As an extension to the existing eLearning systems, we propose the integration of a sketch recognition system that can be used in many educational areas. The recognition system supports the user in the drawing process and offers meaningful and relevant information about the recognized concepts. In order to use questions that require a graphical answer, before the system can correctly and automatically evaluate the student's answer and offer immediate feedback, the teacher must provide a reference solution to the problem, the correct/expected answer. The system uses its knowledge, consisting of primitive forms and constraints) to recognize the graphical primitives and the relations between them and compares the student’s solution with the one given by the teacher.
Authors and Affiliations
Andreea Chişcari, Dorian Gorgan
Keywords
Related Articles
- EP ID EP28893
- DOI -
- Views 406
- Downloads 9
An Ontology-Based Competence Management Interactive System For It Companies
The paper presents an interactive information system for competence management based on ontologies for information technology companies. The advantage of using an ontology-based system is the possibility of the identific...
An Ontology-centered Approach for Designing an Interactive Competence Management System for IT Companies
The paper presents an ontology-centered approach for designing an interactive competence management system for IT companies. This type of approach helps to shift the focus from a function-oriented, tool-centric view, tow...
Using Web Services from Mobile Devices. Software Application for Academic Environment
In our paper we depict two modes of accessing Web services from mobile devices. These modalities correspond to different types of mobile devices, and, as a consequence, we use adapted client modules for each type. The so...
Description of Satellite Images Processing in Greenland Application
Abstract. Our society needs and environmental predictions encourage the applications development, oriented on supervising and analyzing different Earth Science related phenomena. This paper experiments new methods in sat...
Interactions in Smart Environments and the Importance of Modelling
One challenge in software engineering is the development of smart environments that help users to intuitively accomplish their tasks. The ideal smart environment dynamically manages a diverse collection of devices, is ac...