针对基础深度学习模型特征提取能力不足,循环网络训练效率低等问题,将高校社交网络平台评论文本数据作为研究对象,提出了基于多尺度语义协同网络的高校网络舆论情感分类模型。预训练模型ALBERT(A Lite BERT)通过结合当前词的具体上下文...针对基础深度学习模型特征提取能力不足,循环网络训练效率低等问题,将高校社交网络平台评论文本数据作为研究对象,提出了基于多尺度语义协同网络的高校网络舆论情感分类模型。预训练模型ALBERT(A Lite BERT)通过结合当前词的具体上下文动态调整向量表示,提升词向量语义表征质量。多尺度语义协同网络捕捉评论文本不同尺度下的多通道融合情感特征,软注意力机制计算每个特征对情感分类结果的影响权重大小,加权求和后得到情感分类特征表示,线性层输出分布概率并得到具体情感倾向。在真实高校图书馆社交网络平台用户评论数据集进行实验,结果表明该模型F1分数达到了97.46%,优于近期表现优秀的实验对比模型,且通过消融实验证明了各个功能模块的有效性。展开更多
This paper proposes a collaborative design model based on operation semantics in a distributed computer-aided design (CAD) environment. The goal is to reduce time consumption in data format conversion and the requirem...This paper proposes a collaborative design model based on operation semantics in a distributed computer-aided design (CAD) environment. The goal is to reduce time consumption in data format conversion and the requirement of network bandwidth so as to improve the cooperative ability and the synchronization efficiency. Firstly, real-time collaborative design is reviewed and three kinds of real-time collaborative design models are discussed. Secondly, the concept of operation semantics is defined and the framework of an operation semantics model is presented. The operation semantics carries the original design data and actual operation process to express design intent and operation activity in conventional CAD systems. Finally, according to the operation semantics model, a CAD operation primitive is defined which can be retrieved from and mapped to the local CAD system operation commands; a distributed CAD collaborative architecture based on the model is presented, and an example is given to verify the model.展开更多
In CSCW system, there are many long-time, cooperative, interactive transactions. Traditional transaction model and advanced transaction model do not effectively support transaction processing in CSCW system. In this p...In CSCW system, there are many long-time, cooperative, interactive transactions. Traditional transaction model and advanced transaction model do not effectively support transaction processing in CSCW system. In this paper, a semantics-based cooperative transaction model(SCTM) is put forward. This model is based on the semantics information of cooperative process and data objects, and can satisfy the demands of transaction processing in CSCW system.展开更多
MOOC(Massive Open Online Course)平台正在成为学生和教师的重要信息来源。随着在线教学需求的增加,设计了使用Semantic Web和在线社交网络与支持形式语义的可解释性的新一代MOOC,语义支持技术能提供比传统MOOC平台更灵活的信息管理,为...MOOC(Massive Open Online Course)平台正在成为学生和教师的重要信息来源。随着在线教学需求的增加,设计了使用Semantic Web和在线社交网络与支持形式语义的可解释性的新一代MOOC,语义支持技术能提供比传统MOOC平台更灵活的信息管理,为MOOC平台中更有效的信息发现奠定了基础。构建了MOOC管理系统的各种协同语义过滤技术,设计并实现了用于高校外语教学的MOOC原型系统。展开更多
文摘针对基础深度学习模型特征提取能力不足,循环网络训练效率低等问题,将高校社交网络平台评论文本数据作为研究对象,提出了基于多尺度语义协同网络的高校网络舆论情感分类模型。预训练模型ALBERT(A Lite BERT)通过结合当前词的具体上下文动态调整向量表示,提升词向量语义表征质量。多尺度语义协同网络捕捉评论文本不同尺度下的多通道融合情感特征,软注意力机制计算每个特征对情感分类结果的影响权重大小,加权求和后得到情感分类特征表示,线性层输出分布概率并得到具体情感倾向。在真实高校图书馆社交网络平台用户评论数据集进行实验,结果表明该模型F1分数达到了97.46%,优于近期表现优秀的实验对比模型,且通过消融实验证明了各个功能模块的有效性。
文摘This paper proposes a collaborative design model based on operation semantics in a distributed computer-aided design (CAD) environment. The goal is to reduce time consumption in data format conversion and the requirement of network bandwidth so as to improve the cooperative ability and the synchronization efficiency. Firstly, real-time collaborative design is reviewed and three kinds of real-time collaborative design models are discussed. Secondly, the concept of operation semantics is defined and the framework of an operation semantics model is presented. The operation semantics carries the original design data and actual operation process to express design intent and operation activity in conventional CAD systems. Finally, according to the operation semantics model, a CAD operation primitive is defined which can be retrieved from and mapped to the local CAD system operation commands; a distributed CAD collaborative architecture based on the model is presented, and an example is given to verify the model.
文摘In CSCW system, there are many long-time, cooperative, interactive transactions. Traditional transaction model and advanced transaction model do not effectively support transaction processing in CSCW system. In this paper, a semantics-based cooperative transaction model(SCTM) is put forward. This model is based on the semantics information of cooperative process and data objects, and can satisfy the demands of transaction processing in CSCW system.
文摘MOOC(Massive Open Online Course)平台正在成为学生和教师的重要信息来源。随着在线教学需求的增加,设计了使用Semantic Web和在线社交网络与支持形式语义的可解释性的新一代MOOC,语义支持技术能提供比传统MOOC平台更灵活的信息管理,为MOOC平台中更有效的信息发现奠定了基础。构建了MOOC管理系统的各种协同语义过滤技术,设计并实现了用于高校外语教学的MOOC原型系统。
