共查询到20条相似文献，搜索用时 656 毫秒
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《南阳师范学院学报》2017,(6):28-33
语音情感识别本质上是对语音情感的特征参数进行分类和模式识别,其核心问题在于寻找一个更为合适的语音情感识别算法.综述了语音情感识别算法的分类概况、常用的分类算法、研究中的困难与需要进一步研究的问题.最后展望了可能提高精度的先进识别模型. 相似文献
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传统语音情感识别算法模型结构较为简单,需要足够量级的训练数据才能使其具有一定的实用性.然而,在实际应用中可供训练的数据集较少.为解决上述问题,提出了一种语音情感深度迁移识别算法.通过属性分析表构建、特征提取、相关性计算等操作确定源域数据集,并在此基础上训练迁移学习并构建预训练模型,最终构成语音情感分类模型.实验结果表明... 相似文献
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为了提高语音情感识别的准确度，探讨了将Transformer应用于语音情感识别的可能性.将对数梅尔尺度谱图及其一阶差分特征相融合作为输入，使用Transformer来提取分层语音表示，分析注意头个数和Transformer编码器层数的变化对识别精度的影响.结果表明，在ABC、CASIA、DES、EMODB和IEMOCAP语音情感数据库上，相比以MFCC为特征的Transformer,所提模型的精度分别提高了13.98%、8.14%、24.34%、8.16%和20.9%.该模型表现优于递归神经网络(RNN)、卷积神经网络(CNN)、Transformer等其他模型. 相似文献
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将基于多个嵌入图组合形式的半监督判别分析(SDA)以及核SDA(KSDA)应用于全监督的语音情感识别.在语音信号样本情感成分的预处理阶段,从样本语段中提取出多种特征及其统计参数,包括基音、过零率、能量、持续长度、共振峰和MFCC(Mel频率倒谱系数).在将样本特征送入分类器之前的维数约简阶段,使用经过参数优化的SDA或KSDA进行降维.Berlin语音情感数据库上的实验表明,在使用多类SVM分类器时的全监督语音情感识别中,SDA优于其他一些先进的基于谱图学习的维数约简算法,如LDA,LPP,MFA等,而KSDA通过核化的数据映射,能够取得比上述所有算法更好的识别效果. 相似文献
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文章以192名2012级英语专业学生为对象,对动机、兴趣、自信、焦虑及语音自我概念五个情感因素对语音学习的影响进行了调查与分析。研究结果表明：影响英语专业学生语音学习的主要情感因素是语音自我概念、自信和焦虑,大多数学生语音自我概念低下、缺乏自信,三分之一的学生课堂焦虑重。动机和兴趣这两个情感因素总体上对语音学习起到了积极的作用,但大多数学生课余不愿花更多的时间和精力练习语音语调,语音学习的自主性不强。针对发现的问题,提出了相应的对策。 相似文献
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随着科技的迅速发展,人机交互越来越受到人们的重视,语音情感识别更是学术界研究的热点。将BP神经网络算法用于语音情感识别研究,并在汉语情感数据集上进行了相关实验,识别的准确率达到了91.5%,相较于SVM算法分类精度提高了5%。 相似文献
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基于二维情感空间的语音情感识别 总被引：1，自引：0，他引：1
为提高语音情感的正确识别率,在利用反映"激发维"维度信息的韵律特征基础上,提出了采用反映"评价维"维度信息的音质特征作为新的情感特征使用。再将韵律特征参数和音质特征参数结合并用于语音情感识别,并采用支持向量机分类器实现对汉语生气、高兴、悲伤、厌烦和中性五类情感的识别。试验结果表明,基于"激发维"和"评价维"二维情感空间取得的情感总体平均正确识别率为84%,比基于"激发维"一维情感空间取得的识别率高出了12%。可见同时考虑从"激发维"和"评价维"二维情感空间进行语音情感识别,识别结果得到了较大改善。 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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YANGShiguo 《重庆大学学报(英文版)》2004,3(1):86-88
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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GUO Bao-feng Xiao Da-wei 《重庆大学学报(英文版)》2005,4(3):129-133
Using virtual reality for interactive design gives a designer an intuitive vision of a design and allows the designer to achieve a viable, optimal solution in a timely manner. The article discusses the process of making the Virtual Reality System of the Humble Administrator＇s Garden. Translating building data to the Virtual Reality Modeling Language （VRML） is by far unsatisfactory. This creates a challenge for computer designers to do optimization to meet requirements. Five different approaches to optimize models have been presented in this paper. The other methods are to optimize VRML and to reduce the file size. This is done by keeping polygon counts to a minimum and by applying such techniques as object culling and level-ofdetail switching. 相似文献
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The awareness of individualism can be traced back to the period of American Revolution when the Declaration of Independence was produced.It expressed basic beliefs concerning freedom,equality,democracy,privacy and the relationship between people and government,which were exactly what the philosophy of individualism mostly dealt with at that time.This paper is to exploit the essence of individualism by analyzing the Declaration .The analysis enables us to reconsider its significance to the issue of America human rights and foreign policies. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献