...
首页> 外文期刊>JMLR: Workshop and Conference Proceedings >Streaming Nonlinear Bayesian Tensor Decomposition
【24h】

Streaming Nonlinear Bayesian Tensor Decomposition

机译:流媒体非线性贝叶斯张量分解

获取原文
           

摘要

Despite the success of the recent nonlinear tensor decomposition models based on Gaussian processes (GPs), they lack an effective way to deal with streaming data, which are important for many applications. Using the standard streaming variational Bayes framework or the recent streaming sparse GP approximations will lead to intractable model evidence lower bounds; although we can use stochastic gradient descent for incremental updates, they are unreliable and often yield poor estimations. To address this problem, we propose Streaming Nonlinear Bayesian Tensor Decomposition (SNBTD) that can conduct high-quality, closed-form and iteration-free updates upon receiving new tensor entries. Specifically, we use random Fourier features to build a sparse spectrum GP decomposition model to dispense with complex kernel/matrix operations and to ease posterior inference. We then extend the assumed-density-filtering framework by approximating all the data likelihoods in a streaming batch with a single factor to perform one-shot updates. We use conditional moment matching and Taylor approximations to fulfill efficient, analytical factor calculation. We show the advantage of our method on four real-world applications.
机译:尽管最近基于高斯过程(GPS)的非线性张量分解模型成功,但它们缺乏处理流数据的有效方法,这对许多应用来说都很重要。使用标准流变差贝叶斯框架或最近的流稀疏GP近似将导致难以应变的模型证据下限;虽然我们可以使用随机梯度下降进行增量更新,但它们是不可靠的,并且通常会产生差的估计。为了解决这个问题,我们提出了在接收新的张量条目时开展高质量,闭合形式和迭代更新的非线性贝叶斯张量分解(SNBTD)。具体地,我们使用随机傅里叶特征来构建稀疏频谱GP分解模型,以分配复杂的内核/矩阵操作并简化后部推理。然后,我们通过用单个因子近似于单个因素来扩展假定密度过滤框架以执行单次更新。我们使用条件时刻匹配和泰勒近似来满足有效的分析因子计算。我们展示了我们在四个现实应用程序中的方法的优势。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号