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The meaning of a word often varies depending on its usage in different domains. The standard word embedding models struggle to represent this variation, as they learn a single global representation for a word. We propose a method to learn…

计算与语言 · 计算机科学 2019-10-22 Lahari Poddar , Gyorgy Szarvas , Lea Frermann

Open-text (or open-domain) semantic parsers are designed to interpret any statement in natural language by inferring a corresponding meaning representation (MR). Unfortunately, large scale systems cannot be easily machine-learned due to…

人工智能 · 计算机科学 2011-07-20 Antoine Bordes , Xavier Glorot , Jason Weston , Yoshua Bengio

The words-as-classifiers model of grounded lexical semantics learns a semantic fitness score between physical entities and the words that are used to denote those entities. In this paper, we explore how such a model can incrementally…

计算与语言 · 计算机科学 2019-11-11 Daniele Moro , Stacy Black , Casey Kennington

We study the problem of embedding-based entity alignment between knowledge graphs (KGs). Previous works mainly focus on the relational structure of entities. Some further incorporate another type of features, such as attributes, for…

人工智能 · 计算机科学 2019-06-07 Qingheng Zhang , Zequn Sun , Wei Hu , Muhao Chen , Lingbing Guo , Yuzhong Qu

In this paper we present a unified framework for modeling multi-relational representations, scoring, and learning, and conduct an empirical study of several recent multi-relational embedding models under the framework. We investigate the…

计算与语言 · 计算机科学 2014-11-18 Bishan Yang , Wen-tau Yih , Xiaodong He , Jianfeng Gao , Li Deng

Prior work has shown that coupling sequential latent variable models with semantic ontological knowledge can improve the representational capabilities of event modeling approaches. In this work, we present a novel, doubly hierarchical,…

计算与语言 · 计算机科学 2023-05-31 Shubhashis Roy Dipta , Mehdi Rezaee , Francis Ferraro

We propose a novel approach to improve a visual-semantic embedding model by incorporating concept representations captured from an external structured knowledge base. We investigate its performance on image classification under both…

计算机视觉与模式识别 · 计算机科学 2020-09-22 Mirantha Jayathilaka , Tingting Mu , Uli Sattler

Knowledge is captured in the form of entities and their relationships and stored in knowledge graphs. Knowledge graphs enhance the capabilities of applications in many different areas including Web search, recommendation, and natural…

机器学习 · 计算机科学 2021-03-31 Kalpa Gunaratna , Yu Wang , Hongxia Jin

Neural language models are a powerful tool to embed words into semantic vector spaces. However, learning such models generally relies on the availability of abundant and diverse training examples. In highly specialised domains this…

计算与语言 · 计算机科学 2015-12-04 Stephanie L. Hyland , Theofanis Karaletsos , Gunnar Rätsch

Knowledge graph embedding involves learning representations of entities -- the vertices of the graph -- and relations -- the edges of the graph -- such that the resulting representations encode the known factual information represented by…

机器学习 · 计算机科学 2023-03-21 Thomas Gebhart , Jakob Hansen , Paul Schrater

This paper presents a method for semantic indexing and describes its application in the field of knowledge representation. Starting point of the semantic indexing is the knowledge represented by concept hierarchies. The goal is to assign…

人工智能 · 计算机科学 2025-01-22 Uwe Petersohn , Sandra Zimmer , Jens Lehmann

In this paper, we report our discovery on named entity distribution in a general word embedding space, which helps an open definition on multilingual named entity definition rather than previous closed and constraint definition on named…

计算与语言 · 计算机科学 2021-02-11 Ying Luo , Hai Zhao , Zhuosheng Zhang , Bingjie Tang

Deep compositional models of meaning acting on distributional representations of words in order to produce vectors of larger text constituents are evolving to a popular area of NLP research. We detail a compositional distributional…

计算与语言 · 计算机科学 2015-08-14 Jianpeng Cheng , Dimitri Kartsaklis

Ontologies form the basic interest in various computer science disciplines such as semantic web, information retrieval, database design, etc. They aim at providing a formal, explicit and shared conceptualization and understanding of common…

信息检索 · 计算机科学 2020-05-04 M. Maree , M. Belkhatir

We present an approach to combining distributional semantic representations induced from text corpora with manually constructed lexical-semantic networks. While both kinds of semantic resources are available with high lexical coverage, our…

计算与语言 · 计算机科学 2017-12-27 Chris Biemann , Stefano Faralli , Alexander Panchenko , Simone Paolo Ponzetto

Embedding entities and relations into a continuous multi-dimensional vector space have become the dominant method for knowledge graph embedding in representation learning. However, most existing models ignore to represent hierarchical…

人工智能 · 计算机科学 2019-09-12 Cunxiang Wang , Feiliang Ren , Zhichao Lin , Chenxv Zhao , Tian Xie , Yue Zhang

Word embeddings have been shown adept at capturing the semantic and syntactic regularities of the natural language text, as a result of which these representations have found their utility in a wide variety of downstream content analysis…

计算与语言 · 计算机科学 2021-03-02 Kishlay Jha

Many models learn representations of knowledge graph data by exploiting its low-rank latent structure, encoding known relations between entities and enabling unknown facts to be inferred. To predict whether a relation holds between…

机器学习 · 计算机科学 2021-01-19 Carl Allen , Ivana Balažević , Timothy Hospedales

Text representations using neural word embeddings have proven effective in many NLP applications. Recent researches adapt the traditional word embedding models to learn vectors of multiword expressions (concepts/entities). However, these…

计算与语言 · 计算机科学 2018-12-21 Walid Shalaby , Wlodek Zadrozny , Hongxia Jin

Word embeddings are rich word representations, which in combination with deep neural networks, lead to large performance gains for many NLP tasks. However, word embeddings are represented by dense, real-valued vectors and they are therefore…

计算与语言 · 计算机科学 2019-12-24 Andreas Hanselowski , Iryna Gurevych