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Missing values are pervasive in real-world tabular data and can significantly impair downstream analysis. Imputing them is especially challenging in text-rich tables, where dependencies are implicit, complex, and dispersed across long…

数据库 · 计算机科学 2026-05-12 Soroush Omidvartehrani , Davood Rafiei

Document-level relation extraction aims at inferring structured human knowledge from textual documents. State-of-the-art methods for this task use pre-trained language models (LMs) via fine-tuning, yet fine-tuning is computationally…

计算与语言 · 计算机科学 2024-10-03 Yilmazcan Ozyurt , Stefan Feuerriegel , Ce Zhang

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…

数据库 · 计算机科学 2025-08-20 Arash Dargahi Nobari , Davood Rafiei

Topic modeling is a widely used technique for uncovering thematic structures from large text corpora. However, most topic modeling approaches e.g. Latent Dirichlet Allocation (LDA) struggle to capture nuanced semantics and contextual…

信息检索 · 计算机科学 2024-09-25 Satya Kapoor , Alex Gil , Sreyoshi Bhaduri , Anshul Mittal , Rutu Mulkar

The emergence of models like GPTs, Claude, LLaMA, and Qwen has reshaped AI applications, presenting vast new opportunities across industries. Yet, the integration of tabular data remains notably underdeveloped, despite its foundational role…

The rapid increase in textual information means we need more efficient methods to sift through, organize, and understand it all. While retrieval-augmented generation (RAG) models excel in accessing information from large document…

计算与语言 · 计算机科学 2025-03-14 Seiji Maekawa , Hayate Iso , Nikita Bhutani

While tabular data is fundamental to many real-world machine learning (ML) applications, acquiring high-quality tabular data is usually labor-intensive and expensive. Limited by the scarcity of observations, tabular datasets often exhibit…

机器学习 · 计算机科学 2026-02-05 Congjing Zhang , Ryan Feng Lin , Ruoxuan Bao , Shuai Huang

Table understanding capability of Large Language Models (LLMs) has been extensively studied through the task of question-answering (QA) over tables. Typically, only a small part of the whole table is relevant to derive the answer for a…

计算与语言 · 计算机科学 2024-02-14 Sohan Patnaik , Heril Changwal , Milan Aggarwal , Sumit Bhatia , Yaman Kumar , Balaji Krishnamurthy

Thematic analysis provides valuable insights into participants' experiences through coding and theme development, but its resource-intensive nature limits its use in large healthcare studies. Large language models (LLMs) can analyze text at…

This paper presents LITE, an LLM-based evaluation method designed for efficient and flexible assessment of taxonomy quality. To address challenges in large-scale taxonomy evaluation, such as efficiency, fairness, and consistency, LITE…

计算与语言 · 计算机科学 2025-04-03 Lin Zhang , Zhouhong Gu , Suhang Zheng , Tao Wang , Tianyu Li , Hongwei Feng , Yanghua Xiao

Table images present unique challenges for effective and efficient understanding due to the need for question-specific focus and the presence of redundant background regions. Existing Multimodal Large Language Model (MLLM) approaches often…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Jongha Kim , Minseong Bae , Sanghyeok Lee , Jinsung Yoon , Hyunwoo J. Kim

Recent large language models (LLMs) have advanced table understanding capabilities but rely on converting tables into text sequences. While multimodal large language models (MLLMs) enable direct visual processing, they face limitations in…

计算与语言 · 计算机科学 2025-02-26 Bohao Yang , Yingji Zhang , Dong Liu , André Freitas , Chenghua Lin

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…

计算与语言 · 计算机科学 2025-06-09 Atharv Kulkarni , Kushagra Dixit , Vivek Srikumar , Dan Roth , Vivek Gupta

We consider the task of generating structured representations of text using large language models (LLMs). We focus on tables and mind maps as representative modalities. Tables are more organized way of representing data, while mind maps…

计算与语言 · 计算机科学 2024-06-21 Parag Jain , Andreea Marzoca , Francesco Piccinno

Question Answering over Tabular Data (Table QA) presents unique challenges due to the diverse structure, size, and data types of real-world tables. The SemEval 2025 Task 8 (DataBench) introduced a benchmark composed of large-scale,…

计算与语言 · 计算机科学 2025-09-12 Rishit Tyagi , Mohit Gupta , Rahul Bouri

While most generative models show achievements in image data generation, few are developed for tabular data generation. Recently, due to success of large language models (LLM) in diverse tasks, they have also been used for tabular data…

机器学习 · 计算机科学 2024-10-30 Dang Nguyen , Sunil Gupta , Kien Do , Thin Nguyen , Svetha Venkatesh

Optimizing accuracy and performance while eliminating hallucinations of open-domain conversational large language models (LLMs) is an open research challenge. A particularly promising direction is to augment and ground LLMs with information…

计算与语言 · 计算机科学 2023-06-01 Anirudh S Sundar , Larry Heck

Processing structured tabular data, particularly large and lengthy tables, constitutes a fundamental yet challenging task for large language models (LLMs). However, existing long-context benchmarks like Needle-in-a-Haystack primarily focus…

计算与语言 · 计算机科学 2025-10-29 Lanrui Wang , Mingyu Zheng , Hongyin Tang , Zheng Lin , Yanan Cao , Jingang Wang , Xunliang Cai , Weiping Wang

Electronic Health Record (EHR) tables pose unique challenges among which is the presence of hidden contextual dependencies between medical features with a high level of data dimensionality and sparsity. This study presents the first…

计算与语言 · 计算机科学 2025-01-17 Jesus Lovon , Martin Mouysset , Jo Oleiwan , Jose G. Moreno , Christine Damase-Michel , Lynda Tamine

Automatic relationship extraction (RE) from biomedical literature is critical for managing the vast amount of scientific knowledge produced each year. In recent years, utilizing pre-trained language models (PLMs) has become the prevalent…

计算与语言 · 计算机科学 2025-11-04 Mario Sänger , Ulf Leser