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Large collections of tabular data from data lakes, web tables and open data portals often originate from heterogeneous sources, leading to representational inconsistencies. Understanding and organizing such repositories therefore remains a…

数据库 · 计算机科学 2026-05-27 Zhenyu Wu , Jiaoyan Chen , Norman W. Paton

Large collections of tabular data from data lakes, web tables and open data portals often originate from heterogeneous sources, leading to representational inconsistencies. Understanding and organizing such repositories therefore remains a…

数据库 · 计算机科学 2026-05-27 Zhenyu Wu , Jiaoyan Chen , Norman W. Paton

Usually, entity relation recognition systems either use a pipe-lined model that treats the entity tagging and relation identification as separate tasks or a joint model that simultaneously identifies the relation and entities. This paper…

计算与语言 · 计算机科学 2020-09-21 Venkata Sasank Pagolu

Consider two data providers, each maintaining records of different feature sets about common entities. They aim to learn a linear model over the whole set of features. This problem of federated learning over vertically partitioned data…

Prior work on integrating text corpora with knowledge graphs (KGs) to improve Knowledge Graph Embedding (KGE) have obtained good performance for entities that co-occur in sentences in text corpora. Such sentences (textual mentions of…

计算与语言 · 计算机科学 2022-04-29 Huda Hakami , Mona Hakami , Angrosh Mandya , Danushka Bollegala

Entity alignment is a viable means for integrating heterogeneous knowledge among different knowledge graphs (KGs). Recent developments in the field often take an embedding-based approach to model the structural information of KGs so that…

计算与语言 · 计算机科学 2019-09-23 Yuting Wu , Xiao Liu , Yansong Feng , Zheng Wang , Dongyan Zhao

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

Joint extraction of entities and relations is an important task in information extraction. To tackle this problem, we firstly propose a novel tagging scheme that can convert the joint extraction task to a tagging problem. Then, based on our…

计算与语言 · 计算机科学 2017-06-19 Suncong Zheng , Feng Wang , Hongyun Bao , Yuexing Hao , Peng Zhou , Bo Xu

Topic models aim to reveal latent structures within a corpus of text, typically through the use of term-frequency statistics over bag-of-words representations from documents. In recent years, conceptual entities -- interpretable,…

计算与语言 · 计算机科学 2024-08-27 Manuel V. Loureiro , Steven Derby , Tri Kurniawan Wijaya

Document-level relation extraction (RE) aims to extract the relations between entities from the input document that usually containing many difficultly-predicted entity pairs whose relations can only be predicted through relational…

计算与语言 · 计算机科学 2022-11-29 Liang Zhang , Jinsong Su , Yidong Chen , Zhongjian Miao , Zijun Min , Qingguo Hu , Xiaodong Shi

Joint representation learning of text and knowledge within a unified semantic space enables us to perform knowledge graph completion more accurately. In this work, we propose a novel framework to embed words, entities and relations into the…

计算与语言 · 计算机科学 2016-11-15 Xu Han , Zhiyuan Liu , Maosong Sun

Representation learning of knowledge graphs aims to embed entities and relations into low-dimensional vectors. Most existing works only consider the direct relations or paths between an entity pair. It is considered that such approaches…

计算与语言 · 计算机科学 2022-10-24 Sirui Li , Kok Wai Wong , Dengya Zhu , Chun Che Fung

Entity resolution is a widely studied problem with several proposals to match records across relations. Matching textual content is a widespread task in many applications, such as question answering and search. While recent methods achieve…

数据库 · 计算机科学 2021-12-17 Naser Ahmadi , Hansjorg Sand , Paolo Papotti

We present a novel end-to-end neural model to extract entities and relations between them. Our recurrent neural network based model captures both word sequence and dependency tree substructure information by stacking bidirectional…

计算与语言 · 计算机科学 2016-06-09 Makoto Miwa , Mohit Bansal

A relation tuple consists of two entities and the relation between them, and often such tuples are found in unstructured text. There may be multiple relation tuples present in a text and they may share one or both entities among them.…

计算与语言 · 计算机科学 2019-11-25 Tapas Nayak , Hwee Tou Ng

We introduce RelNet: a new model for relational reasoning. RelNet is a memory augmented neural network which models entities as abstract memory slots and is equipped with an additional relational memory which models relations between all…

计算与语言 · 计算机科学 2017-11-17 Trapit Bansal , Arvind Neelakantan , Andrew McCallum

Named entity recognition and relation extraction are two important fundamental problems. Joint learning algorithms have been proposed to solve both tasks simultaneously, and many of them cast the joint task as a table-filling problem.…

计算与语言 · 计算机科学 2020-10-09 Jue Wang , Wei Lu

Reasoning, the ability to logically draw conclusions from existing knowledge, is a hallmark of human. Together with perception, they constitute the two major themes of artificial intelligence. While deep learning has pushed the limit of…

人工智能 · 计算机科学 2024-10-18 Zhaocheng Zhu

Despite the well-developed cut-edge representation learning for language, most language representation models usually focus on specific level of linguistic unit, which cause great inconvenience when being confronted with handling multiple…

计算与语言 · 计算机科学 2020-09-11 Yian Li , Hai Zhao

In this paper, we propose to provide a general ensemble learning framework based on deep learning models. Given a group of unit models, the proposed deep ensemble learning framework will effectively combine their learning results via a…

机器学习 · 计算机科学 2018-05-22 Jiawei Zhang , Limeng Cui , Fisher B. Gouza