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Convolution-deconvolution word embedding: An end-to-end multi-prototype fusion embedding method for natural language processing
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DOI：10.1016/j.inffus.2019.06.009.png)
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Abstract
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Existing unsupervised word embedding methods have been proved to be effective to capture latent semantic information on various tasks of Natural Language Processing (NLP). However, existing word representation methods are incapable of tackling both the polysemous-unaware and task-unaware problems that are common phenomena in NLP tasks. In this work, we present a novel Convolution-Deconvolution Word Embedding (CDWE), an endto-end multi-prototype fusion embedding that fuses context-specific information and task-specific information. To the best of our knowledge, we are the first to extend deconvolution (e.g. convolution transpose), which has been widely used in computer vision, to word embedding generation. We empirically demonstrate the efficiency and generalization ability of CDWE by applying it to two representative tasks in NLP: text classification and machine translation. The models of CDWE significantly outperform the baselines and achieve state-of-the-art results on both tasks. To validate the efficiency of CDWE further, we demonstrate how CDWE solves the polysemous-unaware and task-unaware problems via analyzing the Text Deconvolution Saliency, which is an existing strategy for evaluating the outputs of deconvolution.
Keywords:
Word embedding
Multi-prototype
Neural network
Natural language processing
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