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Applied Intelligence - Slot filling and intent detection are two important tasks in a spoken language understanding (SLU) system, it is becoming a tendency that two tasks are jointing learn in SLU.... 相似文献
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目前互联网上已有的本体难以满足Web服务语义查询的需要,而手工建立本体不仅困难而且成本很高,因此有必要建立一种从已有Web服务描述中进行本体学习的方法,辅助领域专家建立高质量的领域本体。针对上述问题,提出了一种针对Web服务描述的本体学习方法。该方法利用一种基于层次Dirichlet过程(hierarchical Dirichlet process,HDP)的主题模型自动学习本体层次结构和每一层中所包含的主题数目。每一层次的主题采用“代表单词”表示,“代表单词”由算法计算得出。基于参数组合模式的规则定义语义丰富规则,并被应用在自底向上的本体语义丰富算法中。实验表明,该方法在语义内容上要比单独使用hHDP(hierar-chies of hierarchical Dirichlet process)方法更加丰富,在语义层次上要好于使用关联规则挖掘方法形成的本体。 相似文献
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Gang?Tian Jian?WangEmail author Keqing?He Chengai?Sun Yuan?Tian 《Information Systems Frontiers》2017,19(1):75-89
An increasing number of Web services have been published on the Internet over the past decade due to the rapid development and adoption of the SOA (Services Oriented Architecture) standard. However, in the current state of the Web, recommending suitable Web services to users becomes a challenge due to the huge divergence in published content. Existing Web services recommendation approaches based on collaborative filtering are mainly aiming to QoS (Quality of Service) prediction. Recommending services based on users’ ratings on services are seldomly reported due to the difficulty of collecting such explicit feedback. In this paper, we report a data set of implicit feedback on real-world Web services, which consist of more than 280,000 user-service interaction records, 65,000 service users and 15,000 Web services or mashups. Temporal information is becoming an increasingly important factor in service recommendation since time effects may influence users’ preferences on services to a large extent. Based on the collected data set, we propose a time-aware service recommendation approach. Temporal information is sufficiently considered in our approach, where three time effects are analyzed and modeled including user bias shifting, Web service bias shifting, and user preference shifting. Experimental results show that the proposed approach outperforms seven existing collaborative filtering approaches on the prediction accuracy. 相似文献
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计算机辅助设计是当前工业设计专业教学的重要内容,根据工业设计CAD课程教学的目标,针对当前课程设置和教学中的问题,提出了通过构建模块化CAD课程,将CAD教学贯穿到设计实践中,并采用连续性的教学进程来构建新的课程体系;在教学中采用突出思维方法的归类,注重CAD对设计要素的表达,以设计任务驱动的CAD学习等教学方法来提高学生利用计算机设计的能力和持续学习CAD的能力。 相似文献
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利用TP801单板机的Z80-PIO的输入输出口了EPROM编程器,并编写了相应的软件。该编程器具有结构简单,联接与使用方便,可靠性高等特点。 相似文献
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