activity
20162026
most citedEvaluating the State-of-the-Art of End-to-End Natural Language Generation: The E2E NLG Challenge

185 citations · 665 across the 58 of their papers we have counts for

collaborators

69 papers

cs.CL2026

Do LLMs Make More Mistakes If They Do Not Believe the Input Data?

Peter Kochelka, Aleš Manuel Papáček, Vojtěch Dvořák +1

Large language models (LLMs) are prone to hallucinating or misinterpreting facts, which impairs their usability in retrieval-augmented generation or data-to-text systems. We analys…

cs.CL2026

VetScore: Risk-Weighted Fact Verification for Veterinary Long-Form QA with Citations

Ivan Kartáč, Jan Tovarys, Mateusz Lango +1

Citation excerpts can be used to increase the reliability of generated outputs and their faithfulness to cited sources, which is especially important in high-stakes domains such as…

cs.CL2026

Can LLM Coding Agents Reason About Time Series?

Filip Rechtorík, Ondřej Dušek, Zdeněk Kasner

Large language models (LLMs) are increasingly being used for automated decision-making systems in finance, healthcare, or environmental monitoring. Time series data are ubiquitous…

cs.CL2026

Modular Monolingual Adaptation using Pretrained Language Models

Nalin Kumar, Ondřej Dušek

Building monolingual language models (LMs) for low-resource languages typically relies on adapting pretrained language models (PLMs) by finetuning the whole model on the target lan…

cs.CL2026

AnimatedLLM: Explaining LLMs with Interactive Visualizations

Zdeněk Kasner, Ondřej Dušek

Large language models (LLMs) are becoming central to natural language processing education, yet materials showing their mechanics are sparse. We present AnimatedLLM, an interactive…

cs.CL2026

Strategies for Span Labeling with Large Language Models

Danil Semin, Ondřej Dušek, Zdeněk Kasner

Large language models (LLMs) are increasingly used for text analysis tasks, such as named entity recognition or error detection. Unlike encoder-based models, however, generative ar…

cs.CL2025

LLM Agents Implement an NLG System from Scratch: Building Interpretable Rule-Based RDF-to-Text Generators

Mateusz Lango, Ondřej Dušek

We present a novel neurosymbolic framework for RDF-to-text generation, in which the model is "trained" through collaborative interactions among multiple LLM agents rather than trad…

cs.CL2025

FreshTab: Sourcing Fresh Data for Table-to-Text Generation Evaluation

Kristýna Onderková, Ondřej Plátek, Zdeněk Kasner +1

Table-to-text generation (insight generation from tables) is a challenging task that requires precision in analyzing the data. In addition, the evaluation of existing benchmarks is…

cs.HC2025

When LLMs Can't Help: Real-World Evaluation of LLMs in Nutrition

Karen Jia-Hui Li, Simone Balloccu, Ondrej Dusek +1

The increasing trust in large language models (LLMs), especially in the form of chatbots, is often undermined by the lack of their extrinsic evaluation. This holds particularly tru…

cs.CL2025

Real-World Summarization: When Evaluation Reaches Its Limits

Patrícia Schmidtová, Ondřej Dušek, Saad Mahamood

We examine evaluation of faithfulness to input data in the context of hotel highlights: brief LLM-generated summaries that capture unique features of accommodations. Through human…

cs.CL2025

Leveraging Large Language Models for Building Interpretable Rule-Based Data-to-Text Systems

Jędrzej Warczyński, Mateusz Lango, Ondrej Dusek

We introduce a simple approach that uses a large language model (LLM) to automatically implement a fully interpretable rule-based data-to-text system in pure Python. Experimental e…

cs.CL2025

Evaluating Text Style Transfer Evaluation: Are There Any Reliable Metrics?

Sourabrata Mukherjee, Atul Kr. Ojha, John P. McCrae +1

Text style transfer (TST) is the task of transforming a text to reflect a particular style while preserving its original content. Evaluating TST outputs is a multidimensional chall…

cs.CL2024★ 1 cited

Exploring ReAct Prompting for Task-Oriented Dialogue: Insights and Shortcomings

Michelle Elizabeth, Morgan Veyret, Miguel Couceiro +2

Large language models (LLMs) gained immense popularity due to their impressive capabilities in unstructured conversations. Empowering LLMs with advanced prompting strategies such a…

cs.CL2024

Teaching LLMs at Charles University: Assignments and Activities

Jindřich Helcl, Zdeněk Kasner, Ondřej Dušek +4

This paper presents teaching materials, particularly assignments and ideas for classroom activities, from a new course on large language models (LLMs) taught at Charles University.…

cs.CL2024★ 1 cited

A Survey of Text Style Transfer: Applications and Ethical Implications

Sourabrata Mukherjee, Mateusz Lango, Zdenek Kasner +1

Text style transfer (TST) is an important task in controllable text generation, which aims to control selected attributes of language use, such as politeness, formality, or sentime…

cs.CL2024

Text Style Transfer: An Introductory Overview

Sourabrata Mukherjee, Ondrej Dušek

Text Style Transfer (TST) is a pivotal task in natural language generation to manipulate text style attributes while preserving style-independent content. The attributes targeted i…

cs.AI2024

Faithful and Plausible Natural Language Explanations for Image Classification: A Pipeline Approach

Adam Wojciechowski, Mateusz Lango, Ondrej Dusek

Existing explanation methods for image classification struggle to provide faithful and plausible explanations. This paper addresses this issue by proposing a post-hoc natural langu…

cs.CL2024

Are Large Language Models Actually Good at Text Style Transfer?

Sourabrata Mukherjee, Atul Kr. Ojha, Ondřej Dušek

We analyze the performance of large language models (LLMs) on Text Style Transfer (TST), specifically focusing on sentiment transfer and text detoxification across three languages:…

cs.CL2024

Multilingual Text Style Transfer: Datasets & Models for Indian Languages

Sourabrata Mukherjee, Atul Kr. Ojha, Akanksha Bansal +3

Text style transfer (TST) involves altering the linguistic style of a text while preserving its core content. This paper focuses on sentiment transfer, a popular TST subtask, acros…

cs.CL2024★ 19 cited

Leak, Cheat, Repeat: Data Contamination and Evaluation Malpractices in Closed-Source LLMs

Simone Balloccu, Patrícia Schmidtová, Mateusz Lango +1

Natural Language Processing (NLP) research is increasingly focusing on the use of Large Language Models (LLMs), with some of the most popular ones being either fully or partially c…

cs.CL2024

Text Detoxification as Style Transfer in English and Hindi

Sourabrata Mukherjee, Akanksha Bansal, Atul Kr. Ojha +2

This paper focuses on text detoxification, i.e., automatically converting toxic text into non-toxic text. This task contributes to safer and more respectful online communication an…

cs.CL2024★ 1 cited

Beyond Traditional Benchmarks: Analyzing Behaviors of Open LLMs on Data-to-Text Generation

Zdeněk Kasner, Ondřej Dušek

We analyze the behaviors of open large language models (LLMs) on the task of data-to-text (D2T) generation, i.e., generating coherent and relevant text from structured data. To avo…

cs.CL2023

Balancing the Style-Content Trade-Off in Sentiment Transfer Using Polarity-Aware Denoising

Sourabrata Mukherjee, Zdeněk Kasner, Ondřej Dušek

Text sentiment transfer aims to flip the sentiment polarity of a sentence (positive to negative or vice versa) while preserving its sentiment-independent content. Although current…

cs.CL2023

LEEETs-Dial: Linguistic Entrainment in End-to-End Task-oriented Dialogue systems

Nalin Kumar, Ondřej Dušek

Linguistic entrainment, or alignment, represents a phenomenon where linguistic patterns employed by conversational participants converge to one another. While entrainment has been…