基于个体分析的投影式非线性非负张量分解在高维非结构化数据模式分析中的研究

项目名称： 基于个体分析的投影式非线性非负张量分解在高维非结构化数据模式分析中的研究

项目编号： No.61502059

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 其他

项目作者： 刘昶

作者单位： 成都大学

项目金额： 19万元

中文摘要： 非负张量分解模拟人脑感知世界的过程，已经成为高维非结构化数据模式分析的研究热点之一。然而，现有非负张量分解存在泛化能力低下，不能深入挖掘高维数据本征结构，无法动态修正学习模型等问题。本课题拟研究非负张量空间中的子空间投影，非线性分析和在线学习技术，设计能实现在线学习的投影式非线性非负张量分解算法，并将其应用于高维非结构化数据中。首先，本课题拟将高维数据视为个体，构建非负张量基空间，实现基于个体分析的投影式非负张量分解，解决样本外问题，增强算法的泛化能力；其次，拟研究结构化张量核函数，将样本投影到高维非线性张量空间，揭示嵌入在高维空间中非线性结构；再次，拟研究投影式非线性非负张量分解的在线学习技术，实现学习模型的快速修正；最后，本课题将提出的算法应用到高维非结构化数据模式分析中，对其性能进行评估和测试。本课题的研究有助于完善非负张量分解的理论模型，对推动高维模式分析的发展具有重要科学价值。

中文关键词： Non-negative；Tensor；Factorization；High-dimensional；Unstructured；Data；Subspace；Projection；Non-linear；Analysis；Online；Learning

英文摘要： Non-negative tensor factorization (NTF) imitates the processes of human cognition and has become the hot topic in the field of high-dimensional pattern analysis. However,Existing NTF algorithms often have a poor generalization ability, are unable to excavate the intrinsic structure of high-dimensional data and revise learning model dynamically. This research is planning to study subspace projection, non-linear analysis and online learning techniques in non-negative tensor space, implement the projective non-linear non-negative tensor factorization with online learning and apply it into the pattern analysis of high unstructured data. Firstly, aiming to settle the out-of-sample problem and improve the generalization ability, each datum will be respected as an individual, and projective non-negative tensor factorization based on individual analysis is studied to construct the non-negative tensor basis space. Then structured tensor kernel function will be studied, which projects data to higher non-linear tensor space to excavate the non-linear structure embedded in high-dimensional space. Furthermore, the online learning technique of projective non-linear non-negative tensor factorization will be studied to revise the learning model quickly. Finally, the pattern analysis of high-dimensional unstructured data are applied to evaluate its performance. This research is helpful to improve the theoretical model of NTF and has vital scientific value to promote the development of high-dimensional pattern analysis.

英文关键词： 非负张量分解;高维非结构化数据;子空间投影;非线性分析;在线学习