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The dependency tree of a natural language sentence can capture the interactions between semantics and words. However, it is unclear whether those methods which exploit such dependency information for semantic parsing can be combined to…

Computation and Language · Computer Science 2021-12-28 Defeng Xie , Jianmin Ji , Jiafei Xu , Ran Ji

Data augmentation methods for neural machine translation are particularly useful when limited amount of training data is available, which is often the case when dealing with low-resource languages. We introduce a novel augmentation method,…

Computation and Language · Computer Science 2023-11-07 Attila Nagy , Dorina Lakatos , Botond Barta , Judit Ács

Distantly supervised datasets for relation extraction mostly focus on sentence-level extraction, and they cover very few relations. In this work, we propose cross-document relation extraction, where the two entities of a relation tuple…

Computation and Language · Computer Science 2021-08-24 Tapas Nayak , Hwee Tou Ng

Keyphrase extraction is the task of finding several interesting phrases in a text document, which provide a list of the main topics within the document. Most existing graph-based models use co-occurrence links as cohesion indicators to…

Computation and Language · Computer Science 2021-11-16 Yuchen Liang , Mohammed J. Zaki

Based on decision trees, many fields have arguably made tremendous progress in recent years. In simple words, decision trees use the strategy of "divide-and-conquer" to divide the complex problem on the dependency between input features and…

Machine Learning · Computer Science 2021-01-22 Jinxiong Zhang

Dependency tree structures capture long-distance and syntactic relationships between words in a sentence. The syntactic relations (e.g., nominal subject, object) can potentially infer the existence of certain named entities. In addition,…

Computation and Language · Computer Science 2019-09-24 Zhanming Jie , Wei Lu

Relation extraction aims to extract relational facts from sentences. Previous models mainly rely on manually labeled datasets, seed instances or human-crafted patterns, and distant supervision. However, the human annotation is expensive,…

Machine Learning · Computer Science 2019-08-23 Ningyu Zhang , Shumin Deng , Zhanlin Sun , Jiaoyan Chen , Wei Zhang , Huajun Chen

Supervised relation extraction methods based on deep neural network play an important role in the recent information extraction field. However, at present, their performance still fails to reach a good level due to the existence of…

Computation and Language · Computer Science 2020-04-09 Cheng Li , Ye Tian

Feature extraction becomes increasingly important as data grows high dimensional. Autoencoder as a neural network based feature extraction method achieves great success in generating abstract features of high dimensional data. However, it…

Machine Learning · Computer Science 2018-02-22 Qinxue Meng , Daniel Catchpoole , David Skillicorn , Paul J. Kennedy

The performance of relation extraction models has increased considerably with the rise of neural networks. However, a key issue of neural relation extraction is robustness: the models do not scale well to long sentences with multiple…

Computation and Language · Computer Science 2021-04-23 Heike Adel , Jannik Strötgen

This study proposed a knowledge graph entity extraction and relationship reasoning algorithm based on a graph neural network, using a graph convolutional network and graph attention network to model the complex structure in the knowledge…

Computation and Language · Computer Science 2024-11-26 Junliang Du , Guiran Liu , Jia Gao , Xiaoxuan Liao , Jiacheng Hu , Linxiao Wu

Conventional graph-based dependency parsers guarantee a tree structure both during training and inference. Instead, we formalize dependency parsing as the problem of independently selecting the head of each word in a sentence. Our model…

Computation and Language · Computer Science 2016-12-23 Xingxing Zhang , Jianpeng Cheng , Mirella Lapata

Neural network pruning techniques can substantially reduce the computational cost of applying convolutional neural networks (CNNs). Common pruning methods determine which convolutional filters to remove by ranking the filters individually,…

Machine Learning · Computer Science 2022-06-24 Richard Schoonhoven , Allard A. Hendriksen , Daniël M. Pelt , K. Joost Batenburg

Extracting relational triples (subject, predicate, object) from text enables the transformation of unstructured text data into structured knowledge. The named entity recognition (NER) and the relation extraction (RE) are two foundational…

Computation and Language · Computer Science 2023-08-23 Hongyin Zhu

In this paper, we propose a novel lightweight relation extraction approach of structural block driven - convolutional neural learning. Specifically, we detect the essential sequential tokens associated with entities through dependency…

Computation and Language · Computer Science 2021-03-23 Dongsheng Wang , Prayag Tiwari , Sahil Garg , Hongyin Zhu , Peter Bruza

Artificial Neural Networks form the basis of very powerful learning methods. It has been observed that a naive application of fully connected neural networks to data with many irrelevant variables often leads to overfitting. In an attempt…

Machine Learning · Computer Science 2020-02-12 Gitesh Dawer , Yangzi Guo , Sida Liu , Adrian Barbu

To disclose overlapped multiple relations from a sentence still keeps challenging. Most current works in terms of neural models inconveniently assuming that each sentence is explicitly mapped to a relation label, cannot handle multiple…

Computation and Language · Computer Science 2018-11-13 Xinsong Zhang , Pengshuai Li , Weijia Jia , Hai Zhao

Higher-order methods for dependency parsing can partially but not fully address the issue that edges in dependency trees should be constructed at the text span/subtree level rather than word level. In this paper, we propose a new method for…

Computation and Language · Computer Science 2022-05-24 Leilei Gan , Yuxian Meng , Kun Kuang , Xiaofei Sun , Chun Fan , Fei Wu , Jiwei Li

Real time application of deep learning algorithms is often hindered by high computational complexity and frequent memory accesses. Network pruning is a promising technique to solve this problem. However, pruning usually results in irregular…

Neural and Evolutionary Computing · Computer Science 2015-12-31 Sajid Anwar , Kyuyeon Hwang , Wonyong Sung

Phylogenetic trees elucidate evolutionary relationships among species, but phylogenetic inference remains challenging due to the complexity of combining continuous (branch lengths) and discrete parameters (tree topology). Traditional Markov…

Populations and Evolution · Quantitative Biology 2024-12-30 ChenRui Duan , Zelin Zang , Siyuan Li , Yongjie Xu , Stan Z. Li
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