arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2201.03710cs.LG
收藏

预算中的在线变点检测

Online Changepoint Detection on a Budget

Splunk

Zhaohui Wang, Xiao Lin, Abhinav Mishra, Ram Sriharsha

摘要:

变点是底层数据分布的突变。检测数据流中的变化是许多应用的重要问题。在本文中,我们感兴趣的变化点检测算法,在这个意义上,它的存储要求和最坏情况下的计算复杂性每个观察是独立的以前的意见的数量在一个在线设置。我们提出了一个在线的单变量和多变量数据的变点检测算法相比,毫不逊色,离线变点检测算法,同时也在严格的约束计算模型。此外,我们提出了一个简单的在线超参数自动调整技术,这些算法。

英文摘要:

Changepoints are abrupt variations in the underlying distribution of data. Detecting changes in a data stream is an important problem with many applications. In this paper, we are interested in changepoint detection algorithms which operate in an online setting in the sense that both its storage requirements and worst-case computational complexity per observation are independent of the number of previous observations. We propose an online changepoint detection algorithm for both univariate and multivariate data which compares favorably with offline changepoint detection algorithms while also operating in a strictly more constrained computational model. In addition, we present a simple online hyperparameter auto tuning technique for these algorithms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑