In this paper, the toroidal field B of a tokamak produced by separate coils has been calculated from the basic electrodynamic theory. As an example, the toroidal magnetic field B(R) in TEXT-U tokamak is plotted, and t...In this paper, the toroidal field B of a tokamak produced by separate coils has been calculated from the basic electrodynamic theory. As an example, the toroidal magnetic field B(R) in TEXT-U tokamak is plotted, and the curve is fitted well to the analysis formula B(R) = BoRo/R with a precision of several percents.展开更多
Text Rank is a popular tool for obtaining words or phrases that are important for many Natural Language Processing (NLP) tasks. This paper presents a practical approach for Text Rank domain specific using Field Associ...Text Rank is a popular tool for obtaining words or phrases that are important for many Natural Language Processing (NLP) tasks. This paper presents a practical approach for Text Rank domain specific using Field Association (FA) words. We present the keyphrase separation technique not for a single document, although for a particular domain. The former builds a specific domain field. The second collects a list of ideal FA terms and compounds FA terms from the specific domain that are considered to be contender keyword phrases. Therefore, we combine two-word node weights and field tree relationships into a new approach to generate keyphrases from a particular domain. Studies using the changed approach to extract key phrases demonstrate that the latest techniques including FA terms are stronger than the others that use normal words and its precise words reach 90%.展开更多
Joint-TEXT （J-TEXT） is a medium-sized tokamak constructed at Huazhong University of Science and Technology. At present, the poloidal field power supply consists of three subsystem sets, namely Ohmic heating field po...Joint-TEXT （J-TEXT） is a medium-sized tokamak constructed at Huazhong University of Science and Technology. At present, the poloidal field power supply consists of three subsystem sets, namely Ohmic heating field power supply, vertical field power supply, and horizontal field power supply. The structure and function of the poloidal field （PF） power supply as well as the updated control system of the power supply is described. The new scheme uses the realtime feedback control method for the poloidal field power supply. The experimental results show that the poloidal field energized by poloidal field power supply meets the J-TEXT operational requirement perfectly.展开更多
Aiming at the problem that the mathematical expressions in unstructured text fields of documents are hard to be extracted automatically, rapidly and effectively, a method based on Hidden Markov Model (HMM) is proposed...Aiming at the problem that the mathematical expressions in unstructured text fields of documents are hard to be extracted automatically, rapidly and effectively, a method based on Hidden Markov Model (HMM) is proposed. Firstly, this method trained the HMM model through employing the symbol combination features of mathematical expressions. Then, some preprocessing works such as removing labels and filtering words were carried out. Finally, the preprocessed text was converted into an observation sequence as the input of the HMM model to determine which is the mathematical expression and extracts it. The experimental results show that the proposed method can effectively extract the mathematical expressions from the text fields of documents, and also has the relatively high accuracy rate and recall rate.展开更多
目的探索性分析爆炸伤延时现场救护(prolonged field care,PFC)的技术需求,旨在为无法快速实施转运的爆炸伤患者提供“延长黄金救治时间”的医疗技术参考。方法以中国知网中的文本资料为数据源,采用文本关联度挖掘的方法获取“爆炸伤”...目的探索性分析爆炸伤延时现场救护(prolonged field care,PFC)的技术需求,旨在为无法快速实施转运的爆炸伤患者提供“延长黄金救治时间”的医疗技术参考。方法以中国知网中的文本资料为数据源,采用文本关联度挖掘的方法获取“爆炸伤”与“PFC”之间的关联强度,并按照层次分析法原理,探寻不同“建设内容”在“医院智慧化后勤管理”中的需求程度。结果一级指标的建设内容度排序为:持续通气/氧合(28.78)、医疗后送(28.78)、现场复苏(18.54)、伤情评估与监测(11.95)和伤员护理(11.95);二级指标的建设内容排序前三的指标为:持续通气(25.18)、途中救治(18.68)和控制出血(15.45)。结论持续通气、控制出血和途中救治等技术在爆炸伤PFC指标体系中的需求度较高,这可能是未来爆炸伤PFC质量提升的重要发展方向。展开更多
文本分类技术能够帮助心理咨询对话系统自动判别用户的心理状态,以便在聊天过程中正确对用户进行心理治疗及心理健康干预,在心理学领域中具有良好的应用前景。本文在近年提出的Emotional First Aid Dataset心理咨询语料库上依次构建了...文本分类技术能够帮助心理咨询对话系统自动判别用户的心理状态,以便在聊天过程中正确对用户进行心理治疗及心理健康干预,在心理学领域中具有良好的应用前景。本文在近年提出的Emotional First Aid Dataset心理咨询语料库上依次构建了烦恼类型、心理疾病、伤害身体倾向三个文本多分类任务,提出了该语料库的数据预处理方案,同时研究了BERT、Ro BERTa等6个深度学习语言模型在这些多分类任务上的性能,并以这些模型作为基学习器构建了集成模型。实验结果表明,XLNet、RoBERTa、ERNIE模型在多个任务上的表现较为突出,同时集成学习能显著地提高分类模型的预测准确率,整体取得了良好的效果。展开更多
文摘In this paper, the toroidal field B of a tokamak produced by separate coils has been calculated from the basic electrodynamic theory. As an example, the toroidal magnetic field B(R) in TEXT-U tokamak is plotted, and the curve is fitted well to the analysis formula B(R) = BoRo/R with a precision of several percents.
文摘Text Rank is a popular tool for obtaining words or phrases that are important for many Natural Language Processing (NLP) tasks. This paper presents a practical approach for Text Rank domain specific using Field Association (FA) words. We present the keyphrase separation technique not for a single document, although for a particular domain. The former builds a specific domain field. The second collects a list of ideal FA terms and compounds FA terms from the specific domain that are considered to be contender keyword phrases. Therefore, we combine two-word node weights and field tree relationships into a new approach to generate keyphrases from a particular domain. Studies using the changed approach to extract key phrases demonstrate that the latest techniques including FA terms are stronger than the others that use normal words and its precise words reach 90%.
基金supported by National Basic Research Program 973 Program of China(No.2008CB717805)
文摘Joint-TEXT （J-TEXT） is a medium-sized tokamak constructed at Huazhong University of Science and Technology. At present, the poloidal field power supply consists of three subsystem sets, namely Ohmic heating field power supply, vertical field power supply, and horizontal field power supply. The structure and function of the poloidal field （PF） power supply as well as the updated control system of the power supply is described. The new scheme uses the realtime feedback control method for the poloidal field power supply. The experimental results show that the poloidal field energized by poloidal field power supply meets the J-TEXT operational requirement perfectly.
文摘Aiming at the problem that the mathematical expressions in unstructured text fields of documents are hard to be extracted automatically, rapidly and effectively, a method based on Hidden Markov Model (HMM) is proposed. Firstly, this method trained the HMM model through employing the symbol combination features of mathematical expressions. Then, some preprocessing works such as removing labels and filtering words were carried out. Finally, the preprocessed text was converted into an observation sequence as the input of the HMM model to determine which is the mathematical expression and extracts it. The experimental results show that the proposed method can effectively extract the mathematical expressions from the text fields of documents, and also has the relatively high accuracy rate and recall rate.
文摘目的探索性分析爆炸伤延时现场救护(prolonged field care,PFC)的技术需求,旨在为无法快速实施转运的爆炸伤患者提供“延长黄金救治时间”的医疗技术参考。方法以中国知网中的文本资料为数据源,采用文本关联度挖掘的方法获取“爆炸伤”与“PFC”之间的关联强度,并按照层次分析法原理,探寻不同“建设内容”在“医院智慧化后勤管理”中的需求程度。结果一级指标的建设内容度排序为:持续通气/氧合(28.78)、医疗后送(28.78)、现场复苏(18.54)、伤情评估与监测(11.95)和伤员护理(11.95);二级指标的建设内容排序前三的指标为:持续通气(25.18)、途中救治(18.68)和控制出血(15.45)。结论持续通气、控制出血和途中救治等技术在爆炸伤PFC指标体系中的需求度较高,这可能是未来爆炸伤PFC质量提升的重要发展方向。
文摘文本分类技术能够帮助心理咨询对话系统自动判别用户的心理状态,以便在聊天过程中正确对用户进行心理治疗及心理健康干预,在心理学领域中具有良好的应用前景。本文在近年提出的Emotional First Aid Dataset心理咨询语料库上依次构建了烦恼类型、心理疾病、伤害身体倾向三个文本多分类任务,提出了该语料库的数据预处理方案,同时研究了BERT、Ro BERTa等6个深度学习语言模型在这些多分类任务上的性能,并以这些模型作为基学习器构建了集成模型。实验结果表明,XLNet、RoBERTa、ERNIE模型在多个任务上的表现较为突出,同时集成学习能显著地提高分类模型的预测准确率,整体取得了良好的效果。
