1 Introduction Dr. Ralph Coan is not well known to the general public. Originally, we had wanted to interview him as he was the medical director of the first acupuncture center in the United States that opened in the ...1 Introduction Dr. Ralph Coan is not well known to the general public. Originally, we had wanted to interview him as he was the medical director of the first acupuncture center in the United States that opened in the early 1970s. We wanted to know more about that center's history. Prior to visiting Dr. Coan, we found an article written by Dr. Sherman Cohn that mentioned Dr. Coan. The article noted that Dr. Coan was the founder of the American Association of Acupuncture and Oriental Medicine, which is the national association of acupuncturists and Chinese medicine practitioners in the United States.展开更多
以Web of Science(1990—2020)数据库中运动员大脑磁共振成像研究论文作为研究对象,使用文献计量学及科学知识图谱对相关数据进行分析、梳理和呈现。结果表明研究热点、技术手段和主题随着时间出现了一定的演化,以运动专家知识系统作为...以Web of Science(1990—2020)数据库中运动员大脑磁共振成像研究论文作为研究对象,使用文献计量学及科学知识图谱对相关数据进行分析、梳理和呈现。结果表明研究热点、技术手段和主题随着时间出现了一定的演化,以运动专家知识系统作为研究主题的热点仍然延续,但多侧重于对动作预期、动作控制的研究选题;近几年近红外脑成像技术开始出现,与磁共振成像技术相结合,研究者针对某个主题采用了多个手段进行探讨;磁共振成像领域中新的扫描序列和新的影像学数据算法已经受到领域内研究者的广泛关注,从任务态过渡到对运动员进行静息态的大脑功能研究,对局部脑区的关注转移到对关键大脑网络进行探讨等。这些研究主题将会给运动认知神经科学的发展带来新的机遇和前景。展开更多
为了提高微博热门话题的预测精度,提出一种基于鲁棒回声状态网络RESN(robust echo state network)的微博热门话题预测模型。首先收集微博热门话题时间序列,并基于混沌理论确定最优时间延迟和嵌入维数,然后通过相空间重构建立微博热门话...为了提高微博热门话题的预测精度,提出一种基于鲁棒回声状态网络RESN(robust echo state network)的微博热门话题预测模型。首先收集微博热门话题时间序列,并基于混沌理论确定最优时间延迟和嵌入维数,然后通过相空间重构建立微博热门话题学习样本,并输入到RESN进行训练,建立微博热门话题预测模型,最后采用仿真实验对模型性能进行测试。仿真结果表明,相对于其他微博热门话题模型预测,该模型更好地描述了网络微博热门话题的变化态势,提高了微博热门话题的预测精度。展开更多
文摘1 Introduction Dr. Ralph Coan is not well known to the general public. Originally, we had wanted to interview him as he was the medical director of the first acupuncture center in the United States that opened in the early 1970s. We wanted to know more about that center's history. Prior to visiting Dr. Coan, we found an article written by Dr. Sherman Cohn that mentioned Dr. Coan. The article noted that Dr. Coan was the founder of the American Association of Acupuncture and Oriental Medicine, which is the national association of acupuncturists and Chinese medicine practitioners in the United States.
文摘以Web of Science(1990—2020)数据库中运动员大脑磁共振成像研究论文作为研究对象,使用文献计量学及科学知识图谱对相关数据进行分析、梳理和呈现。结果表明研究热点、技术手段和主题随着时间出现了一定的演化,以运动专家知识系统作为研究主题的热点仍然延续,但多侧重于对动作预期、动作控制的研究选题;近几年近红外脑成像技术开始出现,与磁共振成像技术相结合,研究者针对某个主题采用了多个手段进行探讨;磁共振成像领域中新的扫描序列和新的影像学数据算法已经受到领域内研究者的广泛关注,从任务态过渡到对运动员进行静息态的大脑功能研究,对局部脑区的关注转移到对关键大脑网络进行探讨等。这些研究主题将会给运动认知神经科学的发展带来新的机遇和前景。
文摘为了提高微博热门话题的预测精度,提出一种基于鲁棒回声状态网络RESN(robust echo state network)的微博热门话题预测模型。首先收集微博热门话题时间序列,并基于混沌理论确定最优时间延迟和嵌入维数,然后通过相空间重构建立微博热门话题学习样本,并输入到RESN进行训练,建立微博热门话题预测模型,最后采用仿真实验对模型性能进行测试。仿真结果表明,相对于其他微博热门话题模型预测,该模型更好地描述了网络微博热门话题的变化态势,提高了微博热门话题的预测精度。