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The integration of tabular data from diverse sources is often hindered by inconsistencies in formatting and representation, posing significant challenges for data analysts and personal digital assistants. Existing methods for automating…

Databases · Computer Science 2025-08-20 Arash Dargahi Nobari , Davood Rafiei

Large Language Models (LLMs) trained on large volumes of data excel at various natural language tasks, but they cannot handle tasks requiring knowledge that has not been trained on previously. One solution is to use a retriever that fetches…

Recent advances in tabular data generation have greatly enhanced synthetic data quality. However, extending diffusion models to tabular data is challenging due to the intricately varied distributions and a blend of data types of tabular…

The generation of data is a common approach to improve the performance of machine learning tasks, among which is the training of models for classification. In this paper, we present TAGAL, a collection of methods able to generate synthetic…

Machine Learning · Computer Science 2025-09-05 Benoît Ronval , Pierre Dupont , Siegfried Nijssen

The application of machine learning on tabular data in specialized domains is severely limited by data scarcity. While generative models offer a solution, traditional methods falter in low-data regimes, and recent Large Language Models…

Machine Learning · Computer Science 2025-08-05 Siyi Liu , Yujia Zheng , Yongqi Zhang

We introduce TableLLM, a robust large language model (LLM) with 8 billion parameters, purpose-built for proficiently handling tabular data manipulation tasks, whether they are embedded within documents or spreadsheets, catering to…

Computation and Language · Computer Science 2025-02-18 Xiaokang Zhang , Sijia Luo , Bohan Zhang , Zeyao Ma , Jing Zhang , Yang Li , Guanlin Li , Zijun Yao , Kangli Xu , Jinchang Zhou , Daniel Zhang-Li , Jifan Yu , Shu Zhao , Juanzi Li , Jie Tang

Large language models (LLMs) have shown promise in synthetic tabular data generation, yet existing methods struggle to preserve complex feature dependencies, particularly among categorical variables. This work introduces a…

Machine Learning · Computer Science 2025-05-07 Andrey Sidorenko

Large language models (LLMs) are becoming attractive as few-shot reasoners to solve Natural Language (NL)-related tasks. However, the understanding of their capability to process structured data like tables remains an under-explored area.…

Computation and Language · Computer Science 2024-07-18 Yuan Sui , Mengyu Zhou , Mingjie Zhou , Shi Han , Dongmei Zhang

Large language models (LLMs) are increasingly exposed to data contamination, i.e., performance gains driven by prior exposure of test datasets rather than generalization. However, in the context of tabular data, this problem is largely…

Computation and Language · Computer Science 2026-03-31 Matteo Silvestri , Fabiano Veglianti , Flavio Giorgi , Fabrizio Silvestri , Gabriele Tolomei

Deep learning architectures for supervised learning on tabular data range from simple multilayer perceptrons (MLP) to sophisticated Transformers and retrieval-augmented methods. This study highlights a major, yet so far overlooked…

Machine Learning · Computer Science 2025-02-19 Yury Gorishniy , Akim Kotelnikov , Artem Babenko

In recent years, Large Language Models (LLMs) have demonstrated remarkable capabilities in parsing textual data and generating code. However, their performance in tasks involving tabular data, especially those requiring symbolic reasoning,…

Computation and Language · Computer Science 2025-04-04 Md Mahadi Hasan Nahid , Davood Rafiei

Tables serve as a fundamental format for representing structured relational data. While current language models (LMs) excel at many text-based tasks, they still face challenges in table understanding due to the complex characteristics of…

Computation and Language · Computer Science 2026-04-16 Lang Cao , Hanbing Liu

Recent advancements in Large Language Models (LLMs) have markedly enhanced the interpretation and processing of tabular data, introducing previously unimaginable capabilities. Despite these achievements, LLMs still encounter significant…

Computation and Language · Computer Science 2025-03-19 Xianjie Wu , Jian Yang , Linzheng Chai , Ge Zhang , Jiaheng Liu , Xinrun Du , Di Liang , Daixin Shu , Xianfu Cheng , Tianzhen Sun , Guanglin Niu , Tongliang Li , Zhoujun Li

Table reasoning tasks have shown remarkable progress with the development of large language models (LLMs), which involve interpreting and drawing conclusions from tabular data based on natural language (NL) questions. Existing solutions…

Computation and Language · Computer Science 2024-10-11 Yuan Sui , Jiaru Zou , Mengyu Zhou , Xinyi He , Lun Du , Shi Han , Dongmei Zhang

Many organizations rely on data from government and third-party sources, and those sources rarely follow the same data formatting. This introduces challenges in integrating data from multiple sources or aligning external sources with…

Databases · Computer Science 2023-12-27 Arash Dargahi Nobari , Davood Rafiei

Table-based reasoning has shown remarkable progress in combining deep models with discrete reasoning, which requires reasoning over both free-form natural language (NL) questions and structured tabular data. However, previous table-based…

Computation and Language · Computer Science 2023-04-28 Yunhu Ye , Binyuan Hui , Min Yang , Binhua Li , Fei Huang , Yongbin Li

Recent years have witnessed the burgeoning of pretrained language models (LMs) for text-based natural language (NL) understanding tasks. Such models are typically trained on free-form NL text, hence may not be suitable for tasks like…

Computation and Language · Computer Science 2020-05-19 Pengcheng Yin , Graham Neubig , Wen-tau Yih , Sebastian Riedel

The majority of data in businesses and industries is stored in tables, databases, and data warehouses. Reasoning with table-structured data poses significant challenges for large language models (LLMs) due to its hidden semantics, inherent…

Computation and Language · Computer Science 2025-07-15 Ce Li , Xiaofan Liu , Zhiyan Song , Ce Chi , Chen Zhao , Jingjing Yang , Zhendong Wang , Kexin Yang , Boshen Shi , Xing Wang , Chao Deng , Junlan Feng

Recent studies have shown that large language models (LLMs), when customized with post-training on tabular data, can acquire general tabular in-context learning (TabICL) capabilities. These models are able to transfer effectively across…

Computation and Language · Computer Science 2025-02-06 Xumeng Wen , Shun Zheng , Zhen Xu , Yiming Sun , Jiang Bian

Tabular data, a prevalent data type across various domains, presents unique challenges due to its heterogeneous nature and complex structural relationships. Achieving high predictive performance and robustness in tabular data analysis holds…

Computation and Language · Computer Science 2024-08-21 Yucheng Ruan , Xiang Lan , Jingying Ma , Yizhi Dong , Kai He , Mengling Feng