分类: 心理学 >> 发展心理学 提交时间: 2023-03-28 合作期刊: 《心理科学进展》
摘要: 前瞻记忆意图后效是指已完成或取消的意图失活失败对当前认知任务造成的干扰。近期研究采用前瞻记忆任务范式探究意图后效的影响因素及认知机制。自发提取-抑制失败和预备性监控两种认知机制的分歧在于提取旧意图是否依赖注意资源的参与。脑成像研究也证实意图提取存在两条神经通路:自发提取通路和预备性监控提取通路。未来研究应探索兼容有意遗忘失败、旧意图再提取、抑制失败三者的研究范式以及降低执行错误的有效措施。
分类: 数学 >> 数学(综合) 提交时间: 2023-01-14
摘要: In this paper, we present the characterizations of total boundedness, relative compactness and compactness in fuzzy set spaces equipped with the endograph metric.The conclusions in this papersignificantly improvethe corresponding conclusions given in our previous paper H. Huang, Characterizations of endograph metric and $ Gamma$-convergence on fuzzy sets, Fuzzy Sets and Systems 350 (2018), 55-84 . The results in this paper are applicable tofuzzy sets in a general metric space. The results in our previous paper are applicable tofuzzy sets in the $m$-dimensional Euclidean space $ mathbb{R}^m$,which is a special type of metric space.Furthermore, based on the above results,wegivethe characterizations of relative compactness,total boundedness and compactness in a kind of common subspaces of general fuzzy sets according to the endograph metric.As an application, we investigate some relationship betweenthe endograph metric and the $ Gamma$-convergence on fuzzy sets.
分类: 数学 >> 数学(综合) 提交时间: 2022-08-13
摘要: This paper shows thatthe endograph metric and the $\Gamma$-convergenceare compatible on a large classof fuzzy set in $\mathbb{R}^m$.
分类: 数学 >> 数学(综合) 提交时间: 2022-06-20
摘要: In this paper, we discuss the properties ofthe spaces of fuzzy sets in a metric space with $L_p$-type $d_p$ metrics, $p\geq 1$.Firstly, we give the characterizations of compactness in fuzzy set space with $d_p$ metrics.Then wepresent the completions of fuzzy set spaces with $d_p$ metrics. The $d_p$ metrics are well-definedif and only if a function induced by the Hausdorff metric is measurable.In this paper, we givesome fundamental conclusions on the measurability of this function. This paper was submitted to Fuzzy Sets and Systems on 2022.05.06.
分类: 数学 >> 数学(综合) 提交时间: 2022-04-30
摘要: In this paper, we discuss the properties of functions generated using Hausdorff metric.
分类: 数学 >> 数学(综合) 提交时间: 2021-08-10
摘要: In this paper, we give some properties related to platform points of a fuzzy set and their applications.
分类: 天文学 >> 天文学 提交时间: 2021-03-04 合作期刊: 《天文研究与技术》
摘要: 太阳图像中存在着各种尺度,亮度,结构不同的物理活动现象,由于太阳日冕高动态的活动和传感器设备等因素,造成太阳图像成像质量不佳。根据太阳动力学天文台(Solar Dynamic Observatory, SDO)的大气成像仪(Atmospheric Imaging Assenbly, AIA)拍摄不同波段数据结构的动态范围大、噪声大、结构相对模糊等特点,本文提出一种有效基于盲退卷积的SDO/AIA图像增强方法。首先对SDO/AIA图像进行去噪和降低动态范围的处理,基于图像功率谱的分布假设,从原图中估计出点扩散函数(point spread function,PSF)的功率谱,然后使用相位提取算法恢复出PSF的相位,再退卷积出较高质量的目标图像;最后通过轮廓切片分析、功率谱分析以及PSF分析对增强结果进行定量和定性分析。实验结果表明,相比现有图像增强方法,该方法在有效增强太阳日冕图像细节结构的同时,复原出原图因模糊无法辨识的结构。