In recent years,deep learning methods have developed rapidly and found application in many fields,including natural language processing.In the field of aspect-level sentiment analysis,deep learning methods can also gr...In recent years,deep learning methods have developed rapidly and found application in many fields,including natural language processing.In the field of aspect-level sentiment analysis,deep learning methods can also greatly improve the performance of models.However,previous studies did not take into account the relationship between user feature extraction and contextual terms.To address this issue,we use data feature extraction and deep learning combined to develop an aspect-level sentiment analysis method.To be specific,we design user comment feature extraction(UCFE)to distill salient features from users’historical comments and transform them into representative user feature vectors.Then,the aspect-sentence graph convolutional neural network(ASGCN)is used to incorporate innovative techniques for calculating adjacency matrices;meanwhile,ASGCN emphasizes capturing nuanced semantics within relationships among aspect words and syntactic dependency types.Afterward,three embedding methods are devised to embed the user feature vector into the ASGCN model.The empirical validations verify the effectiveness of these models,consistently surpassing conventional benchmarks and reaffirming the indispensable role of deep learning in advancing sentiment analysis methodologies.展开更多
利用时序型长短时记忆(LSTM,long short term memory)网络和分片池化的卷积神经网络(CNN,convolutional neural network),分别提取词向量特征和全局向量特征,将2类特征结合输入前馈网络中进行训练;模型训练中,采用基于概率的训练方法。...利用时序型长短时记忆(LSTM,long short term memory)网络和分片池化的卷积神经网络(CNN,convolutional neural network),分别提取词向量特征和全局向量特征,将2类特征结合输入前馈网络中进行训练;模型训练中,采用基于概率的训练方法。与改进前的模型相比,该模型能够更多地关注句子的全局特征;相较于最大化间隔训练算法,所提训练方法更充分地利用所有可能的依存句法树进行参数更新。为了验证该模型的性能,在宾州中文树库(CTB5,Chinese Penn Treebank 5)上进行实验,结果表明,与已有的仅使用LSTM或CNN的句法分析模型相比,该模型在保证一定效率的同时,能够有效提升依存分析准确率。展开更多
基金This work is partly supported by the Fundamental Research Funds for the Central Universities(CUC230A013)It is partly supported by Natural Science Foundation of Beijing Municipality(No.4222038)It is also supported by National Natural Science Foundation of China(Grant No.62176240).
文摘In recent years,deep learning methods have developed rapidly and found application in many fields,including natural language processing.In the field of aspect-level sentiment analysis,deep learning methods can also greatly improve the performance of models.However,previous studies did not take into account the relationship between user feature extraction and contextual terms.To address this issue,we use data feature extraction and deep learning combined to develop an aspect-level sentiment analysis method.To be specific,we design user comment feature extraction(UCFE)to distill salient features from users’historical comments and transform them into representative user feature vectors.Then,the aspect-sentence graph convolutional neural network(ASGCN)is used to incorporate innovative techniques for calculating adjacency matrices;meanwhile,ASGCN emphasizes capturing nuanced semantics within relationships among aspect words and syntactic dependency types.Afterward,three embedding methods are devised to embed the user feature vector into the ASGCN model.The empirical validations verify the effectiveness of these models,consistently surpassing conventional benchmarks and reaffirming the indispensable role of deep learning in advancing sentiment analysis methodologies.
基金国家自然科学基金(the National Natural Science Foundation of China under Grant No.60173055) 黑龙江省教育厅科学技术开发项目 (the Research Project of Department of Education of Heilongjiang Province of China) 。
文摘利用时序型长短时记忆(LSTM,long short term memory)网络和分片池化的卷积神经网络(CNN,convolutional neural network),分别提取词向量特征和全局向量特征,将2类特征结合输入前馈网络中进行训练;模型训练中,采用基于概率的训练方法。与改进前的模型相比,该模型能够更多地关注句子的全局特征;相较于最大化间隔训练算法,所提训练方法更充分地利用所有可能的依存句法树进行参数更新。为了验证该模型的性能,在宾州中文树库(CTB5,Chinese Penn Treebank 5)上进行实验,结果表明,与已有的仅使用LSTM或CNN的句法分析模型相比,该模型在保证一定效率的同时,能够有效提升依存分析准确率。
