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Graph is a universe data structure that is widely used to organize data in real-world. Various real-word networks like the transportation network, social and academic network can be represented by graphs. Recent years have witnessed the…

机器学习 · 计算机科学 2021-11-23 Xueyi Liu , Jie Tang

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…

The representation learning on textual graph is to generate low-dimensional embeddings for the nodes based on the individual textual features and the neighbourhood information. Recent breakthroughs on pretrained language models and graph…

计算与语言 · 计算机科学 2023-10-10 Junhan Yang , Zheng Liu , Shitao Xiao , Chaozhuo Li , Defu Lian , Sanjay Agrawal , Amit Singh , Guangzhong Sun , Xing Xie

We present a novel online algorithm that learns the essence of each dimension in word embeddings by minimizing the within-group distance of contextualized embedding groups. Three state-of-the-art neural-based language models are used,…

计算与语言 · 计算机科学 2020-05-26 Xinyi Jiang , Zhengzhe Yang , Jinho D. Choi

We study the problem of integrating syntactic information from constituency trees into a neural model in Frame-semantic parsing sub-tasks, namely Target Identification (TI), FrameIdentification (FI), and Semantic Role Labeling (SRL). We use…

计算与语言 · 计算机科学 2020-11-30 Emanuele Bastianelli , Andrea Vanzo , Oliver Lemon

Pre-trained contextualized embedding models such as BERT are a standard building block in many natural language processing systems. We demonstrate that the sentence-level representations produced by some off-the-shelf contextualized…

计算与语言 · 计算机科学 2022-06-06 Xiliang Zhu , David Rossouw , Shayna Gardiner , Simon Corston-Oliver

Word embeddings have gained significant attention as learnable representations of semantic relations between words, and have been shown to improve upon the results of traditional word representations. However, little effort has been devoted…

信息检索 · 计算机科学 2019-05-23 Gloria Feher , Andreas Spitz , Michael Gertz

We present a novel method named Latent Semantic Imputation (LSI) to transfer external knowledge into semantic space for enhancing word embedding. The method integrates graph theory to extract the latent manifold structure of the entities in…

机器学习 · 计算机科学 2019-05-23 Shibo Yao , Dantong Yu , Keli Xiao

Financial sentiment analysis allows financial institutions like Banks and Insurance Companies to better manage the credit scoring of their customers in a better way. Financial domain uses specialized mechanisms which makes sentiment…

计算与语言 · 计算机科学 2024-05-06 Tohida Rehman , Raghubir Bose , Samiran Chattopadhyay , Debarshi Kumar Sanyal

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

Representation learning is an essential problem in a wide range of applications and it is important for performing downstream tasks successfully. In this paper, we propose a new model that learns coupled representations of domains, intents,…

计算与语言 · 计算机科学 2018-12-18 JIhwan Lee , Dongchan Kim , Ruhi Sarikaya , Young-Bum Kim

Financial transactions constitute connections between entities and through these connections a large scale heterogeneous weighted graph is formulated. In this labyrinth of interactions that are continuously updated, there exists a variety…

机器学习 · 计算机科学 2020-07-02 Antonia Gogoglou , Brian Nguyen , Alan Salimov , Jonathan Rider , C. Bayan Bruss

Word embedding methods revolve around learning continuous distributed vector representations of words with neural networks, which can capture semantic and/or syntactic cues, and in turn be used to induce similarity measures among words,…

计算与语言 · 计算机科学 2016-07-25 Kuan-Yu Chen , Shih-Hung Liu , Berlin Chen , Hsin-Min Wang , Hsin-Hsi Chen

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

Financial sentiment analysis enhances market understanding. However, standard Natural Language Processing (NLP) approaches encounter significant challenges when applied to small datasets. This study presents a comparative evaluation of…

机器学习 · 计算机科学 2026-04-10 Joyjit Roy , Samaresh Kumar Singh

Entity embeddings, which represent different aspects of each entity with a single vector like word embeddings, are a key component of neural entity linking models. Existing entity embeddings are learned from canonical Wikipedia articles and…

计算与语言 · 计算机科学 2021-06-17 Feng Hou , Ruili Wang , Jun He , Yi Zhou

Deep learning currently dominates the benchmarks for various NLP tasks and, at the basis of such systems, words are frequently represented as embeddings --vectors in a low dimensional space-- learned from large text corpora and various…

计算与语言 · 计算机科学 2019-09-25 Ronald Denaux , Jose Manuel Gomez-Perez

We design a new technique for the distributional semantic modeling with a neural network-based approach to learn distributed term representations (or term embeddings) - term vector space models as a result, inspired by the recent…

计算与语言 · 计算机科学 2022-01-04 Oleksandr Palagin , Vitalii Velychko , Kyrylo Malakhov , Oleksandr Shchurov

The study of the stock market with the attraction of machine learning approaches is a major direction for revealing hidden market regularities. This knowledge contributes to a profound understanding of financial market dynamics and getting…

机器学习 · 计算机科学 2023-03-28 Andrei Zaichenko , Aleksei Kazakov , Elizaveta Kovtun , Semen Budennyy

Neural networks trained on natural language processing tasks capture syntax even though it is not provided as a supervision signal. This indicates that syntactic analysis is essential to the understating of language in artificial…

计算与语言 · 计算机科学 2020-10-05 Tomasz Limisiewicz , David Mareček