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Entity Alignment (EA) aims to find equivalent entity pairs between KGs, which is the core step of bridging and integrating multi-source KGs. In this paper, we argue that existing GNN-based EA methods inherit the inborn defects from their…

人工智能 · 计算机科学 2022-10-21 Xin Mao , Wenting Wang , Yuanbin Wu , Man Lan

While Mixture-of-Experts (MoE) scales capacity via conditional computation, Transformers lack a native primitive for knowledge lookup, forcing them to inefficiently simulate retrieval through computation. To address this, we introduce…

Knowledge graph embedding (KGE), aiming to embed entities and relations into low-dimensional vectors, has attracted wide attention recently. However, the existing research is mainly based on the black-box neural models, which makes it…

计算与语言 · 计算机科学 2020-11-13 Xiaoyu Kou , Yankai Lin , Yuntao Li , Jiahao Xu , Peng Li , Jie Zhou , Yan Zhang

Sparse expert models are a thirty-year old concept re-emerging as a popular architecture in deep learning. This class of architecture encompasses Mixture-of-Experts, Switch Transformers, Routing Networks, BASE layers, and others, all with…

机器学习 · 计算机科学 2022-09-07 William Fedus , Jeff Dean , Barret Zoph

Access to external knowledge is essential for many natural language processing tasks, such as question answering and dialogue. Existing methods often rely on a parametric model that stores knowledge in its parameters, or use a…

计算与语言 · 计算机科学 2022-11-01 Yuxiang Wu , Yu Zhao , Baotian Hu , Pasquale Minervini , Pontus Stenetorp , Sebastian Riedel

Traditional language models are unable to efficiently model entity names observed in text. All but the most popular named entities appear infrequently in text providing insufficient context. Recent efforts have recognized that context can…

计算与语言 · 计算机科学 2019-06-25 Angli Liu , Jingfei Du , Veselin Stoyanov

Entity Set Expansion (ESE) is a promising task which aims to expand entities of the target semantic class described by a small seed entity set. Various NLP and IR applications will benefit from ESE due to its ability to discover knowledge.…

计算与语言 · 计算机科学 2022-04-26 Yinghui Li , Yangning Li , Yuxin He , Tianyu Yu , Ying Shen , Hai-Tao Zheng

During the past decade, neural networks have become prominent in Natural Language Processing (NLP), notably for their capacity to learn relevant word representations from large unlabeled corpora. These word embeddings can then be…

计算与语言 · 计算机科学 2022-06-16 Bruno Taillé

The increasing depth of parametric domain knowledge in large language models (LLMs) is fueling their rapid deployment in real-world applications. Understanding model vulnerabilities in high-stakes and knowledge-intensive tasks is essential…

计算与语言 · 计算机科学 2024-12-02 R. Patrick Xian , Alex J. Lee , Satvik Lolla , Vincent Wang , Qiming Cui , Russell Ro , Reza Abbasi-Asl

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

In this paper, we propose a new strategy for the task of named entity recognition (NER). We cast the task as a query-based machine reading comprehension task: e.g., the task of extracting entities with PER is formalized as answering the…

计算与语言 · 计算机科学 2019-11-05 Yuxian Meng , Xiaoya Li , Zijun Sun , Jiwei Li

This paper focuses on the study of recognizing discontiguous entities. Motivated by a previous work, we propose to use a novel hypergraph representation to jointly encode discontiguous entities of unbounded length, which can overlap with…

计算与语言 · 计算机科学 2020-05-28 Aldrian Obaja Muis , Wei Lu

Entity matching is the problem of identifying which records refer to the same real-world entity. It has been actively researched for decades, and a variety of different approaches have been developed. Even today, it remains a challenging…

数据库 · 计算机科学 2021-06-02 Nils Barlaug , Jon Atle Gulla

This survey presents a comprehensive description of recent neural entity linking (EL) systems developed since 2015 as a result of the "deep learning revolution" in natural language processing. Its goal is to systemize design features of…

计算与语言 · 计算机科学 2022-04-08 Ozge Sevgili , Artem Shelmanov , Mikhail Arkhipov , Alexander Panchenko , Chris Biemann

Knowledge Graph Embedding (KGE) aims to represent entities and relations of knowledge graph in a low-dimensional continuous vector space. Recent works focus on incorporating structural knowledge with additional information, such as entity…

计算与语言 · 计算机科学 2018-08-14 Kai Wang , Yu Liu , Xiujuan Xu , Dan Lin

Deep auto-encoders (DAEs) have achieved great success in learning data representations via the powerful representability of neural networks. But most DAEs only focus on the most dominant structures which are able to reconstruct the data…

机器学习 · 计算机科学 2020-07-14 Zhao Kang , Xiao Lu , Jian Liang , Kun Bai , Zenglin Xu

We propose an entity-agnostic representation learning method for handling the problem of inefficient parameter storage costs brought by embedding knowledge graphs. Conventional knowledge graph embedding methods map elements in a knowledge…

计算与语言 · 计算机科学 2023-02-06 Mingyang Chen , Wen Zhang , Zhen Yao , Yushan Zhu , Yang Gao , Jeff Z. Pan , Huajun Chen

Deriving disease subtypes from electronic health records (EHRs) can guide next-generation personalized medicine. However, challenges in summarizing and representing patient data prevent widespread practice of scalable EHR-based…

Language Models (LMs) have proven their ability to acquire diverse linguistic knowledge during the pretraining phase, potentially serving as a valuable source of incidental supervision for downstream tasks. However, there has been limited…

计算与语言 · 计算机科学 2023-10-23 Claire Barale , Michael Rovatsos , Nehal Bhuta

Pretrained language models have been suggested as a possible alternative or complement to structured knowledge bases. However, this emerging LM-as-KB paradigm has so far only been considered in a very limited setting, which only allows…

计算与语言 · 计算机科学 2021-04-23 Benjamin Heinzerling , Kentaro Inui