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In this paper we examine the benefit of performing named entity recognition (NER) and co-reference resolution to an English and a Greek corpus used for text segmentation. The aim here is to examine whether the combination of text…

Computation and Language · Computer Science 2016-10-31 Pavlina Fragkou

Entity linking and resolution is a fundamental database problem with applications in data integration, data cleansing, information retrieval, knowledge fusion, and knowledge-base population. It is the task of accurately identifying…

Databases · Computer Science 2019-11-26 Jixue Liu , Selasi Kwashie , Jiuyong Li , Lin Liu , Michael Bewong

A prominent application of knowledge graph (KG) is document enrichment. Existing methods identify mentions of entities in a background KG and enrich documents with entity types and direct relations. We compute an entity relation subgraph…

Artificial Intelligence · Computer Science 2020-05-12 Shuxin Li , Zixian Huang , Gong Cheng , Evgeny Kharlamov , Kalpa Gunaratna

Entity Alignment (EA) has attracted widespread attention in both academia and industry, which aims to seek entities with same meanings from different Knowledge Graphs (KGs). There are substantial multi-step relation paths between entities…

Computation and Language · Computer Science 2022-08-09 Weishan Cai , Wenjun Ma , Jieyu Zhan , Yuncheng Jiang

Entity Resolution (ER) is the task of finding entity profiles that correspond to the same real-world entity. Progressive ER aims to efficiently resolve large datasets when limited time and/or computational resources are available. In…

Databases · Computer Science 2019-05-17 Giovanni Simonini , George Papadakis , Themis Palpanas , Sonia Bergamaschi

Analysing and explaining relationships between entities in a graph is a fundamental problem associated with many practical applications. For example, a graph of biological pathways can be used for discovering a previously unknown…

Social and Information Networks · Computer Science 2018-09-21 Raoul Biagioni , Pierre-Yves Vandenbussche , Vit Novacek

Entity alignment (EA) seeks identical entities in different knowledge graphs, which is a long-standing task in the database research. Recent work leverages deep learning to embed entities in vector space and align them via nearest neighbor…

Computation and Language · Computer Science 2024-03-22 Xiaobin Tian , Zequn Sun , Wei Hu

Entity alignment (EA) is to discover equivalent entities in knowledge graphs (KGs), which bridges heterogeneous sources of information and facilitates the integration of knowledge. Existing EA solutions mainly rely on structural information…

Artificial Intelligence · Computer Science 2020-05-26 Weixin Zeng , Xiang Zhao , Wei Wang , Jiuyang Tang , Zhen Tan

Entity resolution (ER), an important and common data cleaning problem, is about detecting data duplicate representations for the same external entities, and merging them into single representations. Relatively recently, declarative rules…

Databases · Computer Science 2017-01-19 Zeinab Bahmani , Leopoldo Bertossi , Nikolaos Vasiloglou

Entity alignment seeks to find entities in different knowledge graphs (KGs) that refer to the same real-world object. Recent advancement in KG embedding impels the advent of embedding-based entity alignment, which encodes entities in a…

Computation and Language · Computer Science 2020-07-21 Zequn Sun , Qingheng Zhang , Wei Hu , Chengming Wang , Muhao Chen , Farahnaz Akrami , Chengkai Li

Recognizing entities in texts is a central need in many information-seeking scenarios, and indeed, Named Entity Recognition (NER) is arguably one of the most successful examples of a widely adopted NLP task and corresponding NLP technology.…

Computation and Language · Computer Science 2023-10-24 Uri Katz , Matan Vetzler , Amir DN Cohen , Yoav Goldberg

Relations between entities can be represented by different instances, e.g., a sentence containing both entities or a fact in a Knowledge Graph (KG). However, these instances may not well capture the general relations between entities, may…

Computation and Language · Computer Science 2022-03-04 Jie Huang , Kevin Chen-Chuan Chang , Jinjun Xiong , Wen-mei Hwu

Entity resolution (ER) aims at matching records that refer to the same real-world entity. Although widely studied for the last 50 years, ER still represents a challenging data management problem, and several recent works have started to…

This study proposed a knowledge graph entity extraction and relationship reasoning algorithm based on a graph neural network, using a graph convolutional network and graph attention network to model the complex structure in the knowledge…

Computation and Language · Computer Science 2024-11-26 Junliang Du , Guiran Liu , Jia Gao , Xiaoxuan Liao , Jiacheng Hu , Linxiao Wu

This paper explores the problem of matching entities across different knowledge graphs. Given a query entity in one knowledge graph, we wish to find the corresponding real-world entity in another knowledge graph. We formalize this problem…

Computation and Language · Computer Science 2019-03-18 Michael Azmy , Peng Shi , Jimmy Lin , Ihab F. Ilyas

Entity alignment (EA) refers to the task of linking entities in different knowledge graphs (KGs). Existing EA methods rely heavily on structural isomorphism. However, in real-world KGs, aligned entities usually have non-isomorphic…

Computation and Language · Computer Science 2024-11-06 Linyan Yang , Jingwei Cheng , Chuanhao Xu , Xihao Wang , Jiayi Li , Fu Zhang

Statements about entities occur everywhere, from newspapers and web pages to structured databases. Correlating references to entities across systems that use different identifiers or names for them is a widespread problem. In this paper, we…

Artificial Intelligence · Computer Science 2014-06-27 R. V. Guha

In this work, we focus on the problem of entity alignment in Knowledge Graphs (KG) and we report on our experiences when applying a Graph Convolutional Network (GCN) based model for this task. Variants of GCN are used in multiple…

Machine Learning · Computer Science 2021-05-27 Max Berrendorf , Evgeniy Faerman , Valentyn Melnychuk , Volker Tresp , Thomas Seidl

This paper studies a new problem setting of entity alignment for knowledge graphs (KGs). Since KGs possess different sets of entities, there could be entities that cannot find alignment across them, leading to the problem of dangling…

Computation and Language · Computer Science 2021-06-07 Zequn Sun , Muhao Chen , Wei Hu

This paper presents the Entity-Duet Neural Ranking Model (EDRM), which introduces knowledge graphs to neural search systems. EDRM represents queries and documents by their words and entity annotations. The semantics from knowledge graphs…

Information Retrieval · Computer Science 2018-06-05 Zhenghao Liu , Chenyan Xiong , Maosong Sun , Zhiyuan Liu