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Institute of Formal and Applied Linguistics

@ufal.mff.cuni.cz
655 followers 71 following 218 posts

Computational linguistics • Natural language processing • Formal linguistics • Machine translation | at Faculty of Mathematics and Physics, Charles University

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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 05/10/2026
From data highways to oral history: ÚFAL researchers presented at the CLARIN Conference in Barcelona. Ondřej Košarko & Pavel Straňák compared EOSC-CZ & CLARIN infrastructure architectures, while Christopher Brückner showcased MalachNER, turning oral history into searchable data. #NLP #CLARIN2026
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 09/07/2026
Nalin Kumar & @tuetschek.bsky.social presented Modular Monolingual Adaptation using Pretrained Language Models aclanthology.org/2026.acl-ind... with their tricks for saving parameters and improving performance when fine-tuning pretrained LMs for low-resource languages.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 08/07/2026
🎉 Congratulations to our colleague Dan Zeman, who together with Marie-Catherine de Marneffe, @chrmanning.bsky.social & Joakim Nivre has won the ACL 2026 Computational Linguistics High Impact Paper Award for "Universal Dependencies"! 👏 aclanthology.org/2021.cl-2.11
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 08/07/2026
Reasoning Gets Harder for LLMs Inside A Dialogue aclanthology.org/2026.acl-lon... by @ivankartac.bsky.social, M. Lango & @tuetschek.bsky.social Same reasoning tasks, isolated vs. inside a dialogue: 9 LLMs 📉 consistently do worse once conversation, roles & tool-use requirements enter the picture.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 07/07/2026
Semantic-pragmatic Annotations in the Prague Dependency Treebank aclanthology.org/2026.finding... @mariemikulova.bsky.social , E. Hajicova, J. Mirovsky, A. Nedoluzhko, M. Novak, P. Synkova, J. Stepanek, B. Stepankova, @hajicjan.bsky.social A 3M+ token corpus, fully annotated & freely available.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 07/07/2026
Thesis Proposal by Kristýna Onderková: Intentional Inference for Insight Generation aclanthology.org/2026.acl-srw... Why do LLM insights feel shallow? Often, it is unstated assumptions that fill gaps in the task. This thesis makes models surface them & push toward deeper, more trustworthy reasoning.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 07/07/2026
Thesis proposal by Honza Bronec (supervised by @jindrahelcl.bsky.social) 👉 Targeted and Unified Cross-Lingual Unlearning from Multilingual Language Models aclanthology.org/2026.acl-srw... Aims to unify cross-lingual unlearning benchmarks and edit only the layers that store the knowledge.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 07/07/2026
LLM as a Meta-Judge: Synthetic Data for NLP Evaluation Metric Validation aclanthology.org/2026.acl-srw... by Lukáš Eigler, @jlibovicky.bsky.social & David Hurych Rankings from synthetic LLM-generated data almost perfectly match real human judgments. 🤖⚖️ at Student Research Workshop
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 07/07/2026
One-step Nonautoregressive Natural Language Generation with Shortcut Flow Matching Models by Jędrzej Warczyński, Mateusz Lango & @tuetschek.bsky.social aclanthology.org/2026.acl-sho... One-step generation that actually works: BLEU more than doubles vs classic flow matching.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 06/07/2026
Dušan Variš presents joint work w/ @abyste.bsky.social & @jlibovicky.bsky.social: TokCollate: A Comprehensive Tool for Tokenizer Evaluation and Visualization across Languages aclanthology.org/2026.acl-dem... A dashboard for your tokenizer 👀 See which languages you left behind. Open-source, MIT.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 05/07/2026
#ACL2026 continues with the main conference (main + findings + demos + industry + SRW), and @ufal.mff.cuni.cz folks will present 8️⃣ papers. Stop by and check with our colleagues. All times in PDT.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 05/07/2026
UFAL-CUNI at SemEval-2026 Task 11: An Efficient Modular Neuro-symbolic Method for Syllogistic Reasoning by @ivankartac.bsky.social, Honza Bronec, Kristýna Onderková, @zdenekkasner.cz, Mateusz Lango & @tuetschek.bsky.social aclanthology.org/2026.semeval... 💪 4B model + prover beats zero-shot LLMs
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 05/07/2026
Lucie Poláková presents: Challenges in Machine Translation of Interactive Multimodal Exercises aclanthology.org/2026.bea-1.1... MT isn't as solved as it seems: terminological, multimodal, XML-encoded exercises bring new challenges, incl. LLMs 'fixing' counterfactuals.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 04/07/2026
A Pocket Offline Model for Simultaneous Speech Translation as CUNI Submission to IWSLT2026 aclanthology.org/2026.iwslt-1.22 AlignAtt4LLM: Fast AlignAtt for Decoder-Only LLMs @ IWSLT2026 Simultaneous Speech Translation Task aclanthology.org/2026.iwslt-1.32 presented simultaneously by Dominik Macháček
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 04/07/2026
@straka-milan.bsky.social winning the Unconstrained track in this shared task with his system CorPipe aclanthology.org/2026.codi-1.27 CorPipe 26 tops the unconstrained track by 9.5 points and the LLM track by 2.8, with ablations on model size, empty node prediction & zero-shot transfer.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 04/07/2026
Michal Novák presented "Findings of the Fifth Shared Task on Multilingual Coreference Resolution: Expanding Datasets for Long-Range Entities" on the CODI-CRAC workshop, the CRAC26 shared task overview. CorefUD 1.4: 27 datasets, 19 languages. #NLProc aclanthology.org/2026.codi-1....
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 01/07/2026
#ACL2026 starts with two days of tutorials and workshops. @ufal.mff.cuni.cz folks will be there and present their work, here's our schedule, so don't miss our presentations 👇
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 20/05/2026
Automatic Suggestions Help Extending Eventive Ontology: A Case Study on SynSemClass by @janastrakova.bsky.social, Eva Fučíková, Zdenka Urešová & @hajicjan.bsky.social lrec.elra.info/lrec2026-mai... Auto-suggestions improve semantic ontology annotation agreement in SynSemClass case study.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 20/05/2026
SEEM-CZ: Annotation and Classification of Epistemic Markers in Czech by Bára Štpánková, Michal Novák, Tomáš Musil, Lucie Poláková lrec.elra.info/lrec2026-mai... Czech epistemic markers dataset (~4,000 uses) with annotations and XLM-RoBERTa classifiers for NLP.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 20/05/2026
DReUD: Discourse Relations in Universal Dependencies by Jiří Mírovský and Pavlína Synková lrec.elra.info/lrec2026-mai... UD-based shallow discourse relation annotation scheme + DReUD parser for Czech 🇨🇿 & English 🇬🇧
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 20/05/2026
CzechDocs: A Multiway Parallel Dataset of Formatted Documents for Minority Languages in Czechia 🇨🇿 by Pepa Jon and Ondřej Bojar 📝 lrec.elra.info/lrec2026-mai... 📂 github.com/cepin19/Czec...
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 20/05/2026
HotelCheckSpan: A Benchmark Dataset for LLM Faithfulness huggingface.co/datasets/pat... by @patuchen.bsky.social, @tuetschek.bsky.social and @saad.me.uk 🏨 Hotel summary faithfulness benchmark with span-level error labels. lrec.elra.info/lrec2026-mai...
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 20/05/2026
#LREC2026 is over. It had huge @ufal.mff.cuni.cz presence 👯🙆‍♂️🧑‍🤝‍🧑🙋🧓🧒 of 2️⃣6️⃣ people and 1️⃣4️⃣ main conference papers. If you missed our presentations, you can still checkout our #NLProc and #CL papers 👇
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 15/05/2026
Final day of the main conference with 4️⃣ @ufal.mff.cuni.cz contributions! If you're around, check our posters! 👀
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 14/05/2026
On Thursday, we continue with 4️⃣ more paper presentations 🤩
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 12/05/2026
#LREC2026 🌴🇪🇸 continues with day 1 of the main conference. @ufal.mff.cuni.cz folks will present 5 papers: From annotating medieval manuscripts to auditing LLM hallucinations: Prague NLP is everywhere 🚀
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 12/05/2026
Šárka Zikanová et al. Introducing corpora Hlava Cor and Hlava AD Humans disagree on text meaning just as much as models do — and on the same hard cases 🤝😬 ufal.mff.cuni.cz/hvar/hlava-cor ufal.mff.cuni.cz/hvar/hlava-ad
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 12/05/2026
Meaning Annotation Experience. Tribute to Petr Sgall (Jan Štěpánek et al.) Spatial semantics: where philosophy meets spreadsheets. Multiple annotators, 3M Czech tokens, and one humbling conclusion — meaning is messy and labels lie. Thanks Petr Sgall for the theory, sorry for the disagreements. 📍
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 12/05/2026
Panel dicussion The Role of Symbolic Representations in the Era of LLMs @jepusto.bsky.social, @bonverbial.bsky.social, Louise McNally, Susan Windisch and our @hajicjan.bsky.social
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 12/05/2026
First Shared Task on UMR Parsing (Overview by Dan Zeman and Jan Štěpánek et al.) ufal.mff.cuni.cz/umr-parsing First shared task on UMR parsing: 7 languages from 4 families. Turns out cross-linguistic semantic graphs are hard — especially when you can't even see the training data. 📊
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 12/05/2026
Minoo Nassajian et al. Named Entity Recognition for Persian Literary Text Even the best NER tools get lost in the desert when faced with literary text — turns out training only on news doesn't prepare you for The Little Prince. 🌹🐍 huggingface.co/mansoorhamid...
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 12/05/2026
Hana Hledíková presenting Deverbal nouns in UMR: link event/result/agent nouns to their verb, skip location nouns. Simple rule, big consistency win.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 11/05/2026
Congrats to our student Aleš Manuel Papáček to his very first paper made of bachelor thesis! 👉 Never-before-computationally-studied problem: predicting the etymological origin of individual morphs in Czech words (native vs. borrowed, and from which language). lrec-conf.org/proceedings/...
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 11/05/2026
The second day of workshops goes on with two more presentations...
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 10/05/2026
#LREC2026 starts in a couple of hours and @ufal.mff.cuni.cz folks are there to present their research. 🤩 Don't miss the panel discussion with @hajicjan.bsky.social on the role of symbolic representations in the era of LLMs. And check out our posters and talks 👇
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 30/03/2026
#EACL2026 is over. Thank for representing @ufal.mff.cuni.cz and congrats on the work you have presented! @abyste.bsky.social, @gianlucavico.bsky.social, @patuchen.bsky.social, @jlibovicky.bsky.social, @zdenekkasner.cz, @tuetschek.bsky.social, @namlh201.bsky.social, @jjon19.bsky.social et al.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 29/03/2026
Automated Quality Control for Language Documentation: Detecting Phonotactic Inconsistencies in a Kokborok Wordlist by @patkaiist.bsky.social and @abyste.bsky.social aclanthology.org/2026.fieldma... N-gram models catch transcription errors in low-resource language wordlists! 🔍📝
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 29/03/2026
Crowdsourcing Piedmontese to Test LLMs on Non-Standard Orthography by @gianlucavico.bsky.social and @jlibovicky.bsky.social aclanthology.org/2026.vardial... New Piedmontese dataset tests tokenization, classification & translation! 🗣️
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 29/03/2026
AnimatedLLM: Explaining LLMs with Interactive Visualizations by @zdenekkasner.cz and @tuetschek.bsky.social aclanthology.org/2026.teachin... AnimatedLLM lets you explore how LLMs work step by step. Right in your browser, no setup needed. Great for teaching or self-study! 🧵🤖 👉 animatedllm.github.io
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 28/03/2026
Current State of LLMs for Arabic Dialectal Machine Translation by @jjon19.bsky.social, Rawan Bondok and Ondřej Bojar aclanthology.org/2026.abjadnl... LLMs struggle with Arabic dialect MT — even GPT-4.1. 16 dialects tested, no clear winner.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 28/03/2026
On the Credibility of Evaluating LLMs using Survey Questions by @jlibovicky.bsky.social aclanthology.org/2026.mme-mai... Survey-based LLM value evals are unreliable — prompting & decoding choices skew results drastically.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 28/03/2026
LLMs as Span Annotators: A Comparative Study of LLMs and Humans by @zdenekkasner.cz, @zouharvi.bsky.social, @patuchen.bsky.social, @ivankartac.bsky.social, K. Onderková, @oplatek.bsky.social, Dimitra Gkatzia, @saad.me.uk , @tuetschek.bsky.social & Simone Ballocu aclanthology.org/2026.mme-mai...
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 28/03/2026
Keynote by @tuetschek.bsky.social on LLM evaluation: standard metrics fall short of catching subtle errors, and human evaluation lacks consistency. Span-level error annotation with LLM-as-judge ensembles ➡️ LLMs matching trained human annotators. At the LowResMT workshop.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 27/03/2026
On the weekend, #EACL2026 continues with workshops and @ufal.mff.cuni.cz folks present their research 👇 Also, don't miss @tuetschek.bsky.social's keynote talk on How (Not) to Find Errors in LLM Outputs at the LowResMT workshop in the morning.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 26/03/2026
Different Time, Different Language: Revisiting the Bias Against Non-Native Speakers in GPT Detectors by Adnan Al Ali, @jindrahelcl.bsky.social and @jlibovicky.bsky.social aclanthology.org/2026.eacl-sr... AI text detectors are suspected of biasing against non-native speakers, but not in Czech 🇨🇿
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 26/03/2026
Machine Translation for Low-Resource Languages through Monolingual Data and LLM: A Case Study of English-to-Basque by @namlh201.bsky.social, Aitor Soroa, German Rigau and Ondřej Bojar aclanthology.org/2026.eacl-sr... Translating into Basque with scarce data? Synthetic data + LLMs help. 🌐
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 26/03/2026
Thesis proposal: Are We Losing Textual Diversity to Natural Language Processing? by @jjon19.bsky.social and Ondřej Bojar aclanthology.org/2026.eacl-sr... Do AI language tools flatten our writing into boring sameness? This thesis investigates NLP's hidden bias against textual diversity. 📝🤖
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 26/03/2026
Thesis Proposal: Multimodal Benchmark for Music Understanding in Large Language Models by Tomáš Sourada aclanthology.org/2026.eacl-sr... Can AI really understand music? Tomáš's thesis builds a benchmark to find out: across audio, MIDI, scores & lyrics. 🎵🤖
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 26/03/2026
Evaluating Morphological Plausibility of Subword Tokenization via Statistical Alignment with Morpho-Syntactic Features by @abyste.bsky.social & @jlibovicky.bsky.social aclanthology.org/2026.finding... TL;DR: Morpho-syntax features replace gold segmentation data for tokenization eval.
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Institute of Formal and Applied Linguistics @ufal.mff.cuni.cz · 26/03/2026
How Important is ‘Perfect’ English for Machine Translation Prompts? by @patuchen.bsky.social, @niyatibafna.bsky.social, @sethjsa.bsky.social , @gianlucavico.bsky.social ,W. Kamzela, @kathaem.bsky.social & @zouharvi.bsky.social aclanthology.org/2026.finding... TL;DR: Prompt errors < prompt choice
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