Sirvi Autor "Kaljuste, Kasper" järgi

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CircularCheck: A Tool for Detecting Circular Reporting
(Tartu Ülikool, 2025) Kaljuste, Kasper; Kangur, Uku, juhendaja; Tartu Ülikool. Loodus- ja täppisteaduste valdkond; Tartu Ülikool. Arvutiteaduse instituut
In the modern information landscape, the speed with which news is spread has reached unprecedented levels. This poses significant challenges in ensuring the accuracy and independence of information. Circular reporting is a situation where a piece of information appears to come from multiple independent sources, but in reality comes from only one source. Such practices can be intentional or accidental and contribute to the spread of false information by creating an illusion of corroboration. While circular reporting has been studied in intelligence and scientific literature, its detection in journalism, particularly in a small media ecosystem like Estonia, has received little attention. This thesis addresses the problem of detecting circular reporting in Estonian online news media. We present a system that detects circular reporting by building reference hierarchies and comparing article content across ERR, Delfi, and Postimees. Here we show that using a combination of link-based and text-based methods, it is possible to flag suspicious reference patterns for manual validation. The results show that 47 positive cases were detected by link analysis and 4 by text similarity. Self-referencing structures were the most reliable. These results reveal that although circular reporting is not widespread, it does occur and can be identified with relatively simple heuristics. The system does not attempt to verify the truthfulness of the information but instead focuses on tracing the propagation of references. This allows researchers and journalists to better assess the credibility and independence of sources. In a broader context, the results offer a framework that can be adapted to other media ecosystems and help improve media transparency.
Virtual Reality Gloves Based on the LucidGloves Project
(Tartu Ülikool, 2023) Kaljuste, Kasper; Tartu Ülikool. Loodus- ja täppisteaduste valdkond; Tartu Ülikool. Tehnoloogiainstituut
The outcome of the thesis was the written process of building a LucidGloves prototype 4 haptic glove and an analysis of what could be improved if someone were to build it again. While a video guide to building the glove exists, there were some issues faced while following it and solutions proposed. A Half-Life: Alyx map was made to gather feedback on the glove. Four test subjects tested the map, the results were analysed and potential improvements were presented, some of which were possible by modifying this prototype or the software, and some requiring a completely new design.