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Volodymyr Ovcharov
Observed name:
Ovcharov, Volodymyr
Institution:
Lexmark (United States)
Observed institution:
Lexmark (United States)
ORCID:
0009-0002-3680-5081
Observed ORCID:
0009-0002-3680-5081
OpenAlex ID:
A5069369241
Gated Against One Model, Open to the Next: Option-Only Solvability in Legal Multiple-Choice Benchmarks
2026
·
Ovcharov, Volodymyr
·
arXiv (Cornell University)
PDF
Citation Grounding Measures the Oracle: Graph Coverage Determines Reported LLM Hallucination Rates in Law
2026
·
Ovcharov, Volodymyr
·
arXiv (Cornell University)
PDF
Multi-Legal-Bench: When the Answer Is in the Input. Label Leakage in Legal Benchmarks Built from Court Registries
2026
·
Ovcharov, Volodymyr
·
arXiv (Cornell University)
PDF
UA-Legal-Bench: A Benchmark for Evaluating Large Language Models on Ukrainian Legal Reasoning
2026
·
Ovcharov, Volodymyr
·
arXiv (Cornell University)
PDF
The Tokenizer Tax Across 25 European Languages: Domain Invariance, Cross-Lingual Few-Shot Effects, and the Ukrainian Penalty
2026
·
Ovcharov, Volodymyr
·
arXiv (Cornell University)
PDF
Temporal Concept Drift in Legal Judgment Prediction: Neural Baselines Across Three Epochs of Ukrainian Court Decisions
2026
·
Ovcharov, Volodymyr
·
arXiv (Cornell University)
PDF
Few-Shot Degradation Is Not What It Seems: Behavioral Evidence, Representation Analysis, and a Random-Text Control Across 12 Models, 2 Tasks, and 2 Architectures
2026
·
Ovcharov, Volodymyr
·
arXiv (Cornell University)
PDF
Temporal Decay of Co-Citation Predictability: A 20-Year Statute Retrieval Benchmark from 396M Ukrainian Court Citations
2026
·
Ovcharov, Volodymyr
·
arXiv (Cornell University)
PDF
Tokenizer Fertility and Zero-Shot Performance of Foundation Models on Ukrainian Legal Text: A Comparative Study
2026
·
Ovcharov, Volodymyr
·
arXiv (Cornell University)
PDF
Automatic Construction of a Legal Citation Graph from 100 Million Ukrainian Court Decisions: Large-Scale Extraction, Topological Analysis, and Ontology-Driven Clustering
2026
·
Ovcharov, Volodymyr
·
arXiv (Cornell University)
PDF
Codification Nobody Needs: Ukraine's Dominance Methodology Against Its Own Record, 2002-2026
2026
·
Volodymyr Ovcharov
·
SSRN Electronic Journal
Codify or Announce, Over Time: A Longitudinal Audit of the Swiss Vertical-Restraints Notice, 2002-2022
2026
·
Volodymyr Ovcharov
·
SSRN Electronic Journal
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Works count:
12
Citation count:
H-index:
I10-index:
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