A study of analysis of high dimensional array data through computational algebraic statistical methods and it's application to statistical image analysis
A study of analysis of high dimensional array data through computational algebraic statistical methods and it's application to statistical image analysis
批准号:
20340021
负责人:
SAKATA Toshio
金额:
$5.91万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2008
资助国家:
日本
项目状态:
已结题
起止时间:
2008 至 2010
中文摘要
研究了三向列联表的序贯精确条件检验中的提升问题。所研究的问题是如何从时间t-1构造时间t的推理框架(所有与给定基准具有相同边缘的列联表的集合)。我们通过r邻域定理明确了时刻t的坐标系可以由时刻t-1的坐标系通过马尔可夫基构造出来。另一方面,对于实值三维基准,即3张量,我们研究了秩和最大秩。特别地,我们在没有条件的复数域上证明了Atkinson的论断,并在有条件的实数域上证明了它。我们称不满足条件的张量为绝对非奇异张量。为了研究绝对非奇异张量,我们设计了张量的行列式多项式,明确了绝对非奇异与行列式多项式正性之间的联系。给出了寻找和构造绝对非奇异张量的方法。此外,我们还提出了利用微分几何不变量和正交群或酉群上的积分来检测它们之间不等价的方法。此外,在随机矩阵最大特征值分布理论、基于地理空间数据的森林砍伐建模和图像分类等方面也取得了一些成果。
英文摘要
In the sequential exact conditional test for three-way contingency tables lifting problem is studied. The problem studied is how to construct the inferential frame (the set of all contingency tables with the same marginals as a given datum) at the time t from that of the time t-1. We made clear by r-neighborhood theorem that the frame at the time t is constructible from the frame at the time t-1 by using Markov basis. On the other hand for the real valued three dimensional datum, that is, 3-tensor, we studied the rank and the maximal rank. Especially, we proved Atkinson's claim for the complex number fields with no condition and proved it over the real number field with some condition. We called tensors, which does not satisfy the condition, as absolutely nonsingular tensors. For studying absolutely nonsingular tensors we devised the determinant polynomial of tensors and made clear the link between the absolutely non-singularity and the positivity of the determinant polynomial. We obtained methods how to find and how to construct absolutely nonsingular tensor. Also, we proposed methods to detect non equivalence between them by using differential geometric invariants and the integrations over the orthogonal or the unitary group. In addition, some results were obtained in the distribution theory of the largest eigenvalue of a random matrix and in the deforestation modeling and the image classification, based on geo-spatial data.
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Contextual clustering and unmixing of geospatial data based on Gaussian mixture models and Markov random fields
基于高斯混合模型和马尔可夫随机场的地理空间数据的上下文聚类和分解
DOI:
--
发表时间:
2009
期刊:
Bulletin of Informatics and Cybernetics 41
影响因子:
--
作者:
[Sawamura, Y., Nishii, R., Nakamoto, A., Kawaguchi, S., Ozaki, T.]
通讯作者:
T.
Lifting between the sets of three-way contingency tables and r-neighborhood property for 3x3xK
3x3xK 的三向列联表组和 r 邻域属性之间的提升
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
[Toshio Sumi, Toshio Sakata]
通讯作者:
Toshio Sakata
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[Kobayashi, C., Izutani, N., Karakas, A.I., Yoshida, T., Yong, D., Umeda, H., Mitsuhiro Miyazaki]
通讯作者:
Mitsuhiro Miyazaki
The Evaluation of the Maximal Rank of Tensors Simply by Row and Column Operations and Symmetrization(Invited)
通过行列运算和对称化评估张量的最大秩(特邀)
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
[Toshio Sakat a, Toshio Sumi, Mitsuhiro Miyazaki]
通讯作者:
Mitsuhiro Miyazaki
The Evaluation of the Maximal Rank of Tensors Simply by Row and Column Operations and Symmetrization
简单地通过行列运算和对称化评估张量的最大秩
DOI:
--
发表时间:
2008
期刊:
The proceedings CD of IASC2008
影响因子:
--
作者:
[Toshio Sakata, Toshio Sumi, Mi tsuhiro Miyazaki]
通讯作者:
Mi tsuhiro Miyazaki
共 41 条
A Study of Image Recognition by Statistics, Machine Learning, and Partial differential equations
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批准号:17540122
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.61万
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财政年份:2005
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负责人:SAKATA Toshio
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依托单位:
A new development of a conditional test (specially its sequential version) for contingency tables and the related problems
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批准号:13640121
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.66万
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财政年份:2001
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负责人:SAKATA Toshio
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依托单位: