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We present a novel extension to embedding-based knowledge graph completion models which enables them to perform open-world link prediction, i.e. to predict facts for entities unseen in training based on their textual description. Our model…

人工智能 · 计算机科学 2020-01-10 Haseeb Shah , Johannes Villmow , Adrian Ulges , Ulrich Schwanecke , Faisal Shafait

With the large volume of new information created every day, determining the validity of information in a knowledge graph and filling in its missing parts are crucial tasks for many researchers and practitioners. To address this challenge, a…

人工智能 · 计算机科学 2016-11-17 Baoxu Shi , Tim Weninger

Knowledge Graphs, such as Wikidata, comprise structural and textual knowledge in order to represent knowledge. For each of the two modalities dedicated approaches for graph embedding and language models learn patterns that allow for…

Textual network embedding leverages rich text information associated with the network to learn low-dimensional vectorial representations of vertices. Rather than using typical natural language processing (NLP) approaches, recent research…

计算与语言 · 计算机科学 2019-01-15 Xinyuan Zhang , Yitong Li , Dinghan Shen , Lawrence Carin

Interpretability benefits the theoretical understanding of representations. Existing word embeddings are generally dense representations. Hence, the meaning of latent dimensions is difficult to interpret. This makes word embeddings like a…

计算与语言 · 计算机科学 2023-06-27 Minxue Xia , Hao Zhu

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

Entity synonyms discovery is crucial for entity-leveraging applications. However, existing studies suffer from several critical issues: (1) the input mentions may be out-of-vocabulary (OOV) and may come from a different semantic space of…

人工智能 · 计算机科学 2021-04-02 Yiying Yang , Xi Yin , Haiqin Yang , Xingjian Fei , Hao Peng , Kaijie Zhou , Kunfeng Lai , Jianping Shen

Word embeddings aims to map sense of the words into a lower dimensional vector space in order to reason over them. Training embeddings on domain specific data helps express concepts more relevant to their use case but comes at a cost of…

计算与语言 · 计算机科学 2018-08-20 Shubham Bhardwaj

The field of natural language understanding has experienced exponential progress in the last few years, with impressive results in several tasks. This success has motivated researchers to study the underlying knowledge encoded by these…

人工智能 · 计算机科学 2021-06-03 Carlos Aspillaga , Marcelo Mendoza , Alvaro Soto

The objective of knowledge graph embedding is to encode both entities and relations of knowledge graphs into continuous low-dimensional vector spaces. Previously, most works focused on symbolic representation of knowledge graph with…

计算与语言 · 计算机科学 2016-12-14 Jiacheng Xu , Kan Chen , Xipeng Qiu , Xuanjing Huang

This paper introduces a novel approach to learn visually grounded meaning representations of words as low-dimensional node embeddings on an underlying graph hierarchy. The lower level of the hierarchy models modality-specific word…

计算与语言 · 计算机科学 2021-09-08 Mariella Dimiccoli , Herwig Wendt , Pau Batlle

Knowledge Graph Completion is a task of expanding the knowledge graph/base through estimating possible entities, or proper nouns, that can be connected using a set of predefined relations, or verb/predicates describing interconnections of…

计算与语言 · 计算机科学 2021-01-25 Tong Chen , Sirou Zhu , Yiming Wen , Zhaomin Zheng

Word sense induction (WSI), which addresses polysemy by unsupervised discovery of multiple word senses, resolves ambiguities for downstream NLP tasks and also makes word representations more interpretable. This paper proposes an accurate…

计算与语言 · 计算机科学 2018-05-31 Haw-Shiuan Chang , Amol Agrawal , Ananya Ganesh , Anirudha Desai , Vinayak Mathur , Alfred Hough , Andrew McCallum

Knowledge Graph Embedding (KGE) methods have gained enormous attention from a wide range of AI communities including Natural Language Processing (NLP) for text generation, classification and context induction. Embedding a huge number of…

人工智能 · 计算机科学 2022-09-19 Mojtaba Moattari , Sahar Vahdati , Farhana Zulkernine

It has become a de-facto standard to represent words as elements of a vector space (word2vec, GloVe). While this approach is convenient, it is unnatural for language: words form a graph with a latent hierarchical structure, and this…

计算与语言 · 计算机科学 2020-10-07 Max Ryabinin , Sergei Popov , Liudmila Prokhorenkova , Elena Voita

Learning good quality neural graph embeddings has long been achieved by minimizing the point-wise mutual information (PMI) for co-occurring nodes in simulated random walks. This design choice has been mostly popularized by the direct…

社会与信息网络 · 计算机科学 2022-08-29 Asan Agibetov

Word embedding is a Natural Language Processing (NLP) technique that automatically maps words from a vocabulary to vectors of real numbers in an embedding space. It has been widely used in recent years to boost the performance of a vari-ety…

计算与语言 · 计算机科学 2017-09-25 Arpita Roy , Youngja Park , SHimei Pan

Embedding is a common technique for analyzing multi-dimensional data. However, the embedding projection cannot always form significant and interpretable visual structures that foreshadow underlying data patterns. We propose an approach that…

人机交互 · 计算机科学 2022-09-26 Jie Li , Chun-qi Zhou

Though language model text embeddings have revolutionized NLP research, their ability to capture high-level semantic information, such as relations between entities in text, is limited. In this paper, we propose a novel contrastive learning…

计算与语言 · 计算机科学 2023-10-10 Christos Theodoropoulos , James Henderson , Andrei C. Coman , Marie-Francine Moens

The ability of knowledge graphs to represent complex relationships at scale has led to their adoption for various needs including knowledge representation, question-answering, and recommendation systems. Knowledge graphs are often…

计算与语言 · 计算机科学 2023-05-18 Jason Youn , Ilias Tagkopoulos