activity
20202026
most citedCUNI Submission in WMT22 General Task

1 citations · 1 across the 10 of their papers we have counts for

collaborators

13 papers

cs.CL2026

CzechDocs: A Multiway Parallel Dataset of Formatted Documents for Minority Languages in Czechia

Josef Jon, Ondřej Bojar

We present CzechDocs, a multiway parallel dataset of formatted documents (HTML, DOCX, and PDF) covering Czech and minority languages used in Czechia-primarily Ukrainian and English…

cs.CL2025

Finetuning LLMs for EvaCun 2025 token prediction shared task

Josef Jon, Ondřej Bojar

In this paper, we present our submission for the token prediction task of EvaCun 2025. Our sys-tems are based on LLMs (Command-R, Mistral, and Aya Expanse) fine-tuned on the task d…

cs.CL2023

Character-level NMT and language similarity

Josef Jon, Ondřej Bojar

We explore the effectiveness of character-level neural machine translation using Transformer architecture for various levels of language similarity and size of the training dataset…

cs.CL2023

Negative Lexical Constraints in Neural Machine Translation

Josef Jon, Dušan Variš, Michal Novák +2

This paper explores negative lexical constraining in English to Czech neural machine translation. Negative lexical constraining is used to prohibit certain words or expressions in…

cs.CL2023

Breeding Machine Translations: Evolutionary approach to survive and thrive in the world of automated evaluation

Josef Jon, Ondřej Bojar

We propose a genetic algorithm (GA) based method for modifying n-best lists produced by a machine translation (MT) system. Our method offers an innovative approach to improving MT…

cs.CL2022★ 1 cited

CUNI Submission in WMT22 General Task

Josef Jon, Martin Popel, Ondřej Bojar

We present the CUNI-Bergamot submission for the WMT22 General translation task. We compete in EnglishCzech direction. Our submission further explores block backtransla…