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SPARQL CONSTRUCT queries allow for the specification of data processing pipelines that transform given input graphs into new output graphs. It is now common to constrain graphs through SHACL shapes allowing users to understand which data…

数据库 · 计算机科学 2024-05-22 Philipp Seifer , Daniel Hernández , Ralf Lämmel , Steffen Staab

We address the problem of performing semantic transformations on strings, which may represent a variety of data types (or their combination) such as a column in a relational table, time, date, currency, etc. Unlike syntactic…

数据库 · 计算机科学 2012-04-30 Rishabh Singh , Sumit Gulwani

Traditional click-through rate (CTR) prediction models convert the tabular data into one-hot vectors and leverage the collaborative relations among features for inferring the user's preference over items. This modeling paradigm discards…

信息检索 · 计算机科学 2023-12-19 Xiangyang Li , Bo Chen , Lu Hou , Ruiming Tang

Entity linking is a prominent thread of research focused on structured data creation by linking spans of text to an ontology or knowledge source. We revisit the use of structured prediction for entity linking which classifies each…

计算与语言 · 计算机科学 2023-10-24 Hassan S. Shavarani , Anoop Sarkar

Large language models (LLMs) are primarily designed to understand unstructured text. When directly applied to structured formats such as tabular data, they may struggle to discern inherent relationships and overlook critical patterns. While…

机器学习 · 计算机科学 2024-10-11 Natraj Raman , Sumitra Ganesh , Manuela Veloso

Structured (dictionary-like) data presents challenges for left-to-right language models, as they can struggle with structured entities for a wide variety of reasons such as formatting and sensitivity to the order in which attributes are…

机器学习 · 计算机科学 2024-02-08 Ouail Kitouni , Niklas Nolte , James Hensman , Bhaskar Mitra

Tabular data is arguably one of the most commonly used data structures in various practical domains, including finance, healthcare and e-commerce. The inherent heterogeneity allows tabular data to store rich information. However, based on a…

机器学习 · 计算机科学 2023-06-01 Kuan-Yu Chen , Ping-Han Chiang , Hsin-Rung Chou , Ting-Wei Chen , Tien-Hao Chang

We develop a system that formally represents spatial semantics concepts within natural language descriptions of spatial arrangements. The system builds on a model of spatial semantics representation according to which words in a sentence…

计算与语言 · 计算机科学 2021-11-30 Alexandros Haridis , Stella Rossikopoulou Pappa

In recent years, Large Language Models (LLMs) have demonstrated significant improvements across a variety of tasks, one of which is the long-context capability. The key to improving long-context performance lies in effective data…

计算与语言 · 计算机科学 2024-10-03 Keer Lu , Xiaonan Nie , Zheng Liang , Da Pan , Shusen Zhang , Keshi Zhao , Weipeng Chen , Zenan Zhou , Guosheng Dong , Bin Cui , Wentao Zhang

Representing structured text from complex documents typically calls for different machine learning techniques, such as language models for paragraphs and convolutional neural networks (CNNs) for table extraction, which prohibits drawing…

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…

计算与语言 · 计算机科学 2024-08-21 Yucheng Ruan , Xiang Lan , Jingying Ma , Yizhi Dong , Kai He , Mengling Feng

We present a framework for generating natural language description from structured data such as tables; the problem comes under the category of data-to-text natural language generation (NLG). Modern data-to-text NLG systems typically employ…

计算与语言 · 计算机科学 2019-10-08 Anirban Laha , Parag Jain , Abhijit Mishra , Karthik Sankaranarayanan

Clustering is a fundamental learning task widely used as a first step in data analysis. For example, biologists use cluster assignments to analyze genome sequences, medical records, or images. Since downstream analysis is typically…

机器学习 · 计算机科学 2024-06-11 Jonathan Svirsky , Ofir Lindenbaum

Tabular data in digital documents is widely used to express compact and important information for readers. However, it is challenging to parse tables from unstructured digital documents, such as PDFs and images, into machine-readable format…

计算机视觉与模式识别 · 计算机科学 2022-03-09 Bin Xiao , Murat Simsek , Burak Kantarci , Ala Abu Alkheir

We propose a new SLAM system that uses the semantic segmentation of objects and structures in the scene. Semantic information is relevant as it contains high level information which may make SLAM more accurate and robust. Our contribution…

机器人学 · 计算机科学 2022-03-03 Mathieu Gonzalez , Eric Marchand , Amine Kacete , Jérôme Royan

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…

人工智能 · 计算机科学 2025-11-25 Xixi Wang , Miguel Costa , Jordanka Kovaceva , Shuai Wang , Francisco C. Pereira

Tabular data pervades the landscape of the World Wide Web, playing a foundational role in the digital architecture that underpins online information. Given the recent influence of large-scale pretrained models like ChatGPT and SAM across…

机器学习 · 计算机科学 2024-02-02 Chao Ye , Guoshan Lu , Haobo Wang , Liyao Li , Sai Wu , Gang Chen , Junbo Zhao

Tables have gained significant attention in large language models (LLMs) and multimodal large language models (MLLMs) due to their complex and flexible structure. Unlike linear text inputs, tables are two-dimensional, encompassing formats…

计算与语言 · 计算机科学 2025-08-04 Xiaofeng Wu , Alan Ritter , Wei Xu

This paper proposes the use of Constraint Logic Programming (CLP) to model SQL queries in a data-independent abstract layer by focusing on some semantic properties for signalling possible errors in such queries. First, we define a…

数据库 · 计算机科学 2020-02-19 Fernando Sáenz-Pérez

In Natural Language (NL) applications, there is often a mismatch between what the NL interface is capable of interpreting and what a lay user knows how to express. This work describes a novel natural language interface that reduces this…

计算与语言 · 计算机科学 2020-12-14 Clifton McFate , Aditya Kalyanpur , Dave Ferrucci , Andrea Bradshaw , Ariel Diertani , David Melville , Lori Moon