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Table reasoning, which aims to generate the corresponding answer to the question following the user requirement according to the provided table, and optionally a text description of the table, effectively improving the efficiency of…

Computation and Language · Computer Science 2024-02-14 Xuanliang Zhang , Dingzirui Wang , Longxu Dou , Qingfu Zhu , Wanxiang Che

Large language models (LLMs) have shown promise in table Question Answering (Table QA). However, extending these capabilities to multi-table QA remains challenging due to unreliable schema linking across complex tables. Existing methods…

Artificial Intelligence · Computer Science 2025-11-25 Xixi Wang , Miguel Costa , Jordanka Kovaceva , Shuai Wang , Francisco C. Pereira

Imbalanced classification and spurious correlation are common challenges in data science and machine learning. Both issues are linked to data imbalance, with certain groups of data samples significantly underrepresented, which in turn would…

Machine Learning · Statistics 2026-02-10 Ryumei Nakada , Yichen Xu , Lexin Li , Linjun Zhang

Table reasoning, a task to answer questions by reasoning over data presented in tables, is an important topic due to the prevalence of knowledge stored in tabular formats. Recent solutions use Large Language Models (LLMs), exploiting the…

Artificial Intelligence · Computer Science 2026-01-14 Yuxiang Wang , Junhao Gan , Shengxiang Gao , Shenghao Ye , Zhengyi Yang , Jianzhong Qi

How to generate a large, realistic set of tables along with joinability relationships, to stress-test dataset discovery methods? Dataset discovery methods aim to automatically identify related data assets in a data lake. The development and…

Databases · Computer Science 2025-07-09 Zhenwei Dai , Chuan Lei , Asterios Katsifodimos , Xiao Qin , Christos Faloutsos , Huzefa Rangwala

Temporal tabular question answering presents a significant challenge for Large Language Models (LLMs), requiring robust reasoning over structured data, which is a task where traditional prompting methods often fall short. These methods face…

Computation and Language · Computer Science 2025-06-09 Atharv Kulkarni , Kushagra Dixit , Vivek Srikumar , Dan Roth , Vivek Gupta

Imbalanced data are commonly present in real-world applications. While data synthesis can effectively mitigate data scarcity for rare classes, and LLMs have revolutionized text generation, the application of LLMs to the synthesis of…

Data quality remains an important challenge in data-driven systems, as errors in tabular data can severely compromise downstream analytics and machine learning performance. Although numerous error detection algorithms have been proposed,…

Databases · Computer Science 2026-03-10 Xinyuan Liu , Jiahui Chen , Bocheng Hu , Yu Sun , Xinyang Chen , Shaoxu Song , Yongxin Tong

Semantic Knowledge Graphs (SKG) face challenges with scalability, flexibility, contextual understanding, and handling unstructured or ambiguous information. However, they offer formal and structured knowledge enabling highly interpretable…

Artificial Intelligence · Computer Science 2025-01-22 Aldo Gangemi , Andrea Giovanni Nuzzolese

Tabular data have been playing a vital role in diverse real-world fields, including healthcare, finance, etc. With the recent success of Large Language Models (LLMs), early explorations of extending LLMs to the domain of tabular data have…

Machine Learning · Computer Science 2025-12-11 Hangting Ye , Jinmeng Li , He Zhao , Dandan Guo , Yi Chang

Research on differentially private synthetic tabular data has largely focused on independent and identically distributed rows where each record corresponds to a unique individual. This perspective neglects the temporal complexity in…

Machine Learning · Computer Science 2026-02-04 Lucas Rosenblatt , Peihan Liu , Ryan McKenna , Natalia Ponomareva

Large language models (LLMs) have demonstrated remarkable in-context learning capabilities across diverse applications. In this work, we explore the effectiveness of LLMs for generating realistic synthetic tabular data, identifying key…

Machine Learning · Computer Science 2025-01-15 Jinhee Kim , Taesung Kim , Jaegul Choo

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

As real-world tasks grow increasingly complex, long-context reasoning has become a core capability for Large Language Models (LLMs). However, few studies explore which data types are effective for long-context reasoning and why. We find…

Computation and Language · Computer Science 2026-03-24 Huaibing Xie , Guoliang Zhao , Yang Liu , Shihan Dou , Siming Huang , Yanling Xiao , Shaolei Wang , Yiting Liu , Cheng Zhang , Shaofan Liu , Pluto Zhou

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

Understanding dataset semantics is crucial for effective search, discovery, and integration pipelines. To this end, column type annotation (CTA) methods associate columns of tabular datasets with semantic types that accurately describe…

Databases · Computer Science 2026-02-05 Christos Koutras , Juliana Freire

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

The rapid advancements in large language models (LLMs) have ignited interest in the temporal knowledge graph (tKG) domain, where conventional embedding-based and rule-based methods dominate. The question remains open of whether pre-trained…

Computation and Language · Computer Science 2024-04-18 Ruotong Liao , Xu Jia , Yangzhe Li , Yunpu Ma , Volker Tresp

Recent advancements in large language models (LLMs) have significantly enhanced their knowledge and generative capabilities, leading to a surge of interest in leveraging LLMs for high-quality data synthesis. However, synthetic data…

Machine Learning · Computer Science 2025-06-11 Ying Zhou , Xinyao Wang , Yulei Niu , Yaojie Shen , Lexin Tang , Fan Chen , Ben He , Le Sun , Longyin Wen

Existing anomaly detection (AD) methods for tabular data usually rely on some assumptions about anomaly patterns, leading to inconsistent performance in real-world scenarios. While Large Language Models (LLMs) show remarkable reasoning…

Machine Learning · Computer Science 2026-03-31 Hangting Ye , Jinmeng Li , He Zhao , Mingchen Zhuge , Dandan Guo , Yi Chang , Hongyuan Zha