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Author

Kalin Kopanov

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Open access Sep 2026

A Systematic Benchmark of Quantum Support Vector Machines for Interpretable Attribution of AI-Generated Text

Reliable attribution of artificial intelligence (AI)-generated text to a specific large language model (LLM) matters increasingly as LLMs proliferate, yet where quantum machine learning actually stands on this task has, to our knowledge, never been measured systematically. We benchmark the quantum support vector machin...

Kalin Kopanov, Tatiana V. Atanasova · 0 citations
Open access Aug 2026

Time-Series and Social-Media Threat Analytics over a Deployed Cyber-Threat Knowledge Graph

EdgeGuard, a deployed cyber-threat knowledge graph that merges eleven public threat feeds into one Neo4j database via MISP and the STIX 2.1 exchange format, is measured, showing that half of the vulnerabilities known to have been exploited were listed as exploited within five days of their publication, and that a large...

Kalin Kopanov, K. Dineva, Ivaylo Keremidarski et al. · 0 citations
Open access Jul 2026

Profile-Free Behavioral Characterization of Bot-like Activity in a Political Reply Ecosystem on X: A Case Study

In a case study of the reply ecosystem of an official political party account, compute profile-free behavioral features covering text duplication, character-level entropy, timing regularity, reply latency, and post coverage, complemented by a co-commenting network analysis, and group active accounts with unsupervised d...

Kalin Kopanov, Tatiana V. Atanasova · 0 citations

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