Austria

This paper introduces Interactive Tables (iTBLS), a dataset of interactive conversations that focuses on natural-language manipulation of tabular information sourced from academic pre-prints on ArXiv. The iTBLS dataset consists of three types of tabular tasks -- interpretation, modification, and generation. Interpretation focuses on tabular understanding, modification focuses on manipulating tabular information, and generation focuses on the addition of new natural-language evidence. In addition, the paper presents a novel framework that reformulates tabular operations as question-answering, where an appropriate question is formulated based on the nature of interaction and the question is answered using the user request as evidence. The developed approach results in an improvement on all tasks on a sequence-to-sequence modeling baseline on iTBLS. In addition, the question-answering-based reformulation is applied to datasets from prior work for the text-to-table task where textual paragraphs are summarized into tables. The novel approach results in up to 13% improvement in Exact-Match accuracy and up to 16% improvement in BERTScores compared to the prior state-of-the-art.

ACL 2025

iTBLS: A Dataset of Interactive Conversations Over Tabular Information

2021 Annual Conference of the North American Chapter of the Association for Computational Linguistics.

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NAACL 2021

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### Welcome to The 63rd Annual Meeting of the Association for Computational Linguistics (ACL 2025)

Message from the General Chair:<br>
*It is my great pleasure and honor to welcome you to the 63rd Annual Meeting of the Association for  Computational Linguistics (ACL 2025), held in beautiful Vienna, Austria, from July 27 to August 1, 2025.  ACL2025continues our field’s tradition of excellence in scholarship, innovation, and inclusivity, and I am  deeply grateful to the many volunteers who have worked tirelessly to bring this event to life.*<br>
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Welcome to The 63rd Annual Meeting of the Association for Computational Linguistics (ACL 2025)

Recent advances in open-domain question answering over tables have widely adopted large language models (LLMs) under the Retriever-Reader architecture. Prior works have effectively leveraged LLMs to tackle the complex reasoning demands of the Reader component, such as text-to-text, text-to-SQL, and multi-hop reasoning. In contrast, the Retriever component has primarily focused on optimizing the query representation—training retrievers to retrieve relevant tables based on questions, or to select keywords from questions for matching table segments. However, little attention has been given to enhancing how tables themselves are represented in embedding space to better align with questions. To address this, we propose QGpT (Question Generation from Partial Tables), a simple yet effective method that uses an LLM to generate synthetic questions based on small portions of a table. These questions are generated to simulate how a user might query the content of the table currently under consideration. The generated questions are then jointly embedded with the partial table segments used for generation, enhancing semantic alignment with user queries. Without the need to embed entire tables, our method significantly improves retrieval performance across multiple benchmarks for both dense and late-interaction retrievers.

Improving Table Retrieval with Question Generation from Partial Tables

Named Entity Recognition (NER) is a fundamental task in Natural Language Processing (NLP), yet achieving high performance for low-resource languages remains challenging due to limited annotated data and linguistic complexity. Ukrainian exemplifies these issues with its rich morphology and scarce NLP resources. Recent advances in Large Language Models (LLMs) demonstrate their ability to generalize across diverse languages and domains, offering promising solutions without extensive annotations. This research explores adapting state-of-the-art LLMs to Ukrainian through prompt engineering, including chain-of-thought (CoT) strategies, and model refinement via Supervised Fine-Tuning (SFT). Our best model achieves 0.89 F1 on the NER-UK 2.0 benchmark, matching the performance of advanced encoder-only baselines. These findings highlight practical pathways for improving NER in low-resource contexts, promoting more accessible and scalable language technologies.

Improving Named Entity Recognition for Low-Resource Languages Using Large Language Models: A Ukrainian Case Study

We developed a methodology and a framework for automatically evaluating and filtering large-scale parallel corpora for neural machine translation (NMT). We applied six modern Quality Estimation (QE) models to score 55 million English-Ukrainian sentence pairs and conducted human evaluation on a stratified sample of 9,755 pairs. Using the obtained data, we ran a thorough statistical analysis to assess the performance of selected QE models and build linear, quadratic and beta regression models on the ensemble to estimate human quality judgments from automatic metrics. Our best ensemble model explained approximately 60\% of the variance in expert ratings. We also found a non-linear relationship between automatic metrics and human quality perception, indicating that automatic metrics can be used to predict the human score. Our findings will facilitate further research in parallel corpus filtering and quality estimation and ultimately contribute to higher-quality NMT systems. We are releasing our framework, the evaluated corpus with quality scores, and the human evaluation dataset to support further research in this area.

A Framework for Large-Scale Parallel Corpus Evaluation: Ensemble Quality Estimation Models Versus Human Assessment

In this paper, we introduce OmniGEC, a collection of multilingual silver-standard datasets for the task of Grammatical Error Correction (GEC), covering eleven languages: Czech, English, Estonian, German, Greek, Icelandic, Italian, Latvian, Slovene, Swedish, and Ukrainian. These datasets facilitate the development of multilingual GEC solutions and help bridge the data gap in adapting English GEC solutions to multilingual GEC. The texts in the datasets originate from three sources: Wikipedia edits for the eleven target languages, subreddits from Reddit in the eleven target languages, and the Ukrainian-only UberText 2.0 social media corpus. While Wikipedia edits were derived from human-made corrections, the Reddit and UberText 2.0 data were automatically corrected with the GPT-4o-mini model. The quality of the corrections in the datasets was evaluated both automatically and manually. Finally, we fine-tune two open-source large language models — Aya-Expanse (8B) and Gemma-3 (12B) — on the multilingual OmniGEC corpora and achieve state-of-the-art (SOTA) results for paragraph-level multilingual GEC. The dataset collection and the best-performing models are available on Hugging Face.

Introducing OmniGEC: A Silver Multilingual Dataset for Grammatical Error Correction

This paper addresses the challenges of sentiment analysis in Ukrainian social media, where users frequently engage in code-switching with Russian and other languages. We introduce COSMUS (COde-Switched MUltilingual Sentiment for Ukrainian Social media), a 12,224-texts corpus collected from Telegram channels, product‑review sites and open datasets, annotated into positive, negative, neutral and mixed sentiment classes as well as language labels (Ukrainian, Russian, code-switched). We benchmark three modeling paradigms: (i) few‑shot prompting of GPT‑4o and DeepSeek V2-chat, (ii) multilingual mBERT, and (iii) the Ukrainian‑centric UkrRoberta. We also analyze calibration and LIME scores of the latter two solutions to verify its performance on various language labels. To mitigate data sparsity we test two augmentation strategies: back‑translation consistently hurts performance, whereas a Large Language Model (LLM) word‑substitution scheme yields up to +2.2% accuracy. 
Our work delivers the first publicly available dataset and comprehensive benchmark for sentiment classification in Ukrainian code‑switching media. Results demonstrate that language‑specific pre‑training combined with targeted augmentation yields the most accurate and trustworthy predictions in this challenging low‑resource setting.

Improving Sentiment Analysis for Ukrainian Social Media Code-Switching Data

While the evaluation of multimodal English-centric models is an active area of research with numerous benchmarks, there is a profound lack of benchmarks or evaluation suites for low- and mid-resource languages. We introduce ZNO-Vision, a comprehensive multimodal Ukrainian-centric benchmark derived from the standardized university entrance examination (ZNO). The benchmark consists of over 4300 expert-crafted questions spanning 12 academic disciplines, including mathematics, physics, chemistry, and humanities. We evaluated the performance of both open-source models and API providers, finding that only a handful of models performed above baseline. Alongside the new benchmark, we performed the first evaluation study of multimodal text generation for the Ukrainian language: we measured caption generation quality on the Multi30K-UK dataset. Lastly, we tested a few models from a cultural perspective on knowledge of national cuisine. We believe our work will advance multimodal generation capabilities for the Ukrainian language and our approach could be useful for other low-resource languages.

Benchmarking Multimodal Models for Ukrainian Language Understanding Across Academic and Cultural Domains

Recent advances in multilingual language modeling have highlighted the importance of high-quality, large-scale datasets in enabling robust performance across languages. However, many low- and mid-resource languages, including Ukrainian, remain significantly underrepresented in existing pretraining corpora. We present Kobza, a large-scale Ukrainian text corpus containing nearly 60 billion tokens, aimed at improving the quality and scale of Ukrainian data available for training multilingual language models. We constructed Kobza from diverse, high-quality sources and applied rigorous deduplication to maximize data utility. Using this dataset, we pre-trained Modern-LiBERTa, the first Ukrainian transformer encoder capable of handling long contexts (up to 8192 tokens). Modern-LiBERTa achieves competitive results on various standard Ukrainian NLP benchmarks, particularly benefiting tasks that require broader contextual understanding or background knowledge. Our goal is to support future efforts to develop robust Ukrainian language models and to encourage greater inclusion of Ukrainian data in multilingual NLP research.

On the Path to Make Ukrainian a High-Resource Language


This paper presents a new Universal Dependencies (UD) treebank based on Ukrainian parliamentary transcripts, complementing the existing UD resources for Ukrainian. The corpus includes manually annotated texts from key historical sessions of the Verkhovna Rada, capturing not only official rhetoric but also features of colloquial spoken language. The annotation combines UDPipe2 and TagText parsers, with subsequent manual correction to ensure syntactic and morphological accuracy. A detailed comparison of tagsets and the disambiguation strategy employed by TagText is provided. To demonstrate the applicability of the resource, the study examines vocative and nominative case variation in direct address using a large-scale UD-annotated corpus of parliamentary texts.

Developing a Universal Dependencies Treebank for Ukrainian Parliamentary Speech

In this paper we introduce the first effort to adapt large language models (LLMs) to the Ukrainian dialect (in our case Hutsul), a low-resource and morphologically complex dialect spoken in the Carpathian Highlands. We created a parallel corpus of 9852 dialect-to-standard Ukrainian sentence pairs and a dictionary of 7320 dialectal word mappings. We also addressed data shortage by proposing an advanced Retrieval-Augmented Generation (RAG) pipeline to generate synthetic parallel translation pairs, expanding the corpus with 52142 examples. We have fine-tuned multiple open-source LLMs using LoRA and evaluated them on a standard-to-dialect translation task, also comparing with few-shot GPT-4o translation. In the absence of human annotators, we adopt a multi-metric evaluation strategy combining BLEU, chrF++, TER, and LLM-based judgment (GPT-4o). The results show that even small(7B) finetuned models outperform zero-shot baselines such as GPT-4o across both automatic and LLM-evaluated metrics. All data, models, and code are publicly released at: https://github.com/woters/vuyko-hutsul.

Vuyko Mistral: Adapting LLMs for Low-Resource Dialectal Translation

Text preprocessing is a fundamental component of high-quality speech synthesis. This work presents a novel rule-based phonemizer combined with a sentence-level lexical stress prediction model to improve phonetic accuracy and prosody prediction in the text-to-speech pipelines. We also introduce a new benchmark dataset with annotated stress patterns designed for evaluating lexical stress prediction systems at the sentence level.

Experimental results demonstrate that the proposed phonemizer achieves a 1.23% word error rate on a manually constructed pronunciation dataset, while the lexical stress prediction pipeline shows results close to dictionary-based methods, outperforming existing neural network solutions.

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