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In this paper, we address the problem of learning low dimension representation of entities on relational databases consisting of multiple tables. Embeddings help to capture semantics encoded in the database and can be used in a variety of…

计算与语言 · 计算机科学 2021-05-03 Siddhant Arora , Vinayak Gupta , Garima Gaur , Srikanta Bedathur

Sentence embeddings encode natural language sentences as low-dimensional dense vectors. A great deal of effort has been put into using sentence embeddings to improve several important natural language processing tasks. Relation extraction…

计算与语言 · 计算机科学 2020-09-24 Alexander Kalinowski , Yuan An

Pre-trained contextual language models are ubiquitously employed for language understanding tasks, but are unsuitable for resource-constrained systems. Noncontextual word embeddings are an efficient alternative in these settings. Such…

计算与语言 · 计算机科学 2023-04-24 Anik Saha , Alex Gittens , Bulent Yener

Recent advances in machine learning, particularly Large Language Models (LLMs) such as BERT and GPT, provide rich contextual embeddings that improve text representation. However, current document clustering approaches often ignore the…

计算与语言 · 计算机科学 2024-12-20 Imed Keraghel , Mohamed Nadif

It has been reliably shown that the similarity of word embeddings obtained from popular neural models such as BERT approximates effectively a form of semantic similarity of the meaning of those words. It is therefore natural to wonder if…

人工智能 · 计算机科学 2024-08-02 Mathieu d'Aquin , Emmanuel Nauer

Named entity recognition (NER) is frequently addressed as a sequence classification task where each input consists of one sentence of text. It is nevertheless clear that useful information for the task can often be found outside of the…

计算与语言 · 计算机科学 2020-12-18 Jouni Luoma , Sampo Pyysalo

Word embeddings and language models have transformed natural language processing (NLP) by facilitating the representation of linguistic elements in continuous vector spaces. This review visits foundational concepts such as the…

As the name implies, contextualized representations of language are typically motivated by their ability to encode context. Which aspects of context are captured by such representations? We introduce an approach to address this question…

计算与语言 · 计算机科学 2020-11-25 Michael A. Lepori , R. Thomas McCoy

Named Entity Disambiguation (NED) refers to the task of resolving multiple named entity mentions in a document to their correct references in a knowledge base (KB) (e.g., Wikipedia). In this paper, we propose a novel embedding method…

计算与语言 · 计算机科学 2016-06-13 Ikuya Yamada , Hiroyuki Shindo , Hideaki Takeda , Yoshiyasu Takefuji

Pretrained language models have achieved a new state of the art on many NLP tasks, but there are still many open questions about how and why they work so well. We investigate the contextualization of words in BERT. We quantify the amount of…

计算与语言 · 计算机科学 2020-10-13 Mengjie Zhao , Philipp Dufter , Yadollah Yaghoobzadeh , Hinrich Schütze

Contextualized word representations, such as ELMo and BERT, were shown to perform well on various semantic and syntactic tasks. In this work, we tackle the task of unsupervised disentanglement between semantics and structure in neural…

计算与语言 · 计算机科学 2021-03-15 Shauli Ravfogel , Yanai Elazar , Jacob Goldberger , Yoav Goldberg

Most existing topic models rely on bag-of-words (BOW) representation, which limits their ability to capture word order information and leads to challenges with out-of-vocabulary (OOV) words in new documents. Contextualized word embeddings,…

计算与语言 · 计算机科学 2024-03-07 Zheng Fang , Yulan He , Rob Procter

Forms are a widespread type of template-based document used in a great variety of fields including, among others, administration, medicine, finance, or insurance. The automatic extraction of the information included in these documents is…

计算与语言 · 计算机科学 2021-12-15 María Villota , César Domínguez , Jónathan Heras , Eloy Mata , Vico Pascual

Representation learning is a critical ingredient for natural language processing systems. Recent Transformer language models like BERT learn powerful textual representations, but these models are targeted towards token- and sentence-level…

计算与语言 · 计算机科学 2020-05-21 Arman Cohan , Sergey Feldman , Iz Beltagy , Doug Downey , Daniel S. Weld

Efficient document retrieval heavily relies on the technique of semantic hashing, which learns a binary code for every document and employs Hamming distance to evaluate document distances. However, existing semantic hashing methods are…

信息检索 · 计算机科学 2022-11-01 Zexuan Qiu , Qinliang Su , Jianxing Yu , Shijing Si

We introduce a model for bidirectional retrieval of images and sentences through a multi-modal embedding of visual and natural language data. Unlike previous models that directly map images or sentences into a common embedding space, our…

计算机视觉与模式识别 · 计算机科学 2014-06-24 Andrej Karpathy , Armand Joulin , Li Fei-Fei

A legal document is usually long and dense requiring human effort to parse it. It also contains significant amounts of jargon which make deriving insights from it using existing models a poor approach. This paper presents the approaches…

计算与语言 · 计算机科学 2023-05-09 Anshika Gupta , Shaz Furniturewala , Vijay Kumari , Yashvardhan Sharma

Network embeddings, which learn low-dimensional representations for each vertex in a large-scale network, have received considerable attention in recent years. For a wide range of applications, vertices in a network are typically…

计算与语言 · 计算机科学 2018-08-30 Dinghan Shen , Xinyuan Zhang , Ricardo Henao , Lawrence Carin

We propose a new method that leverages contextual embeddings for the task of diachronic semantic shift detection by generating time specific word representations from BERT embeddings. The results of our experiments in the domain specific…

计算与语言 · 计算机科学 2020-03-06 Matej Martinc , Petra Kralj Novak , Senja Pollak

This paper explores humor detection through a linguistic lens, prioritizing syntactic, semantic, and contextual features over computational methods in Natural Language Processing. We categorize features into syntactic, semantic, and…

计算与语言 · 计算机科学 2024-08-13 Tanisha Khurana , Kaushik Pillalamarri , Vikram Pande , Munindar Singh