ATD: Efficient and Effective Algorithms for Detection of Anomalies in High-dimensional Spatiotemporal Data with Large Amounts of Missing Data

ATD：高效且有效的高维时空数据异常检测算法

• 批准号: 2318925
• 负责人: Hsin-Hsiung Huang
• 金额: $ 10万
• 依托单位: The University of Central Florida Board of Trustees
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2318925&HistoricalAwards=false
• 关键词: ATD; Efficient; Effective; Algorithms; Detection

Detecting rare events of anomalies using high-dimensional real-world data with mixed-type multivariate response, sparse and unknown signals and a large number of missing values is very challenging. The architectural integration of domain knowledge and data with spatial and temporal variables significantly improves the model reliability, interpretability, and prediction accuracy. For predicting anomalies, the investigator plans to develop efficient and effective posterior sampling algorithms and apply these methods to various real-word data with interdisciplinary collaborations. Students, including those from underrepresented groups, will be involved in education and outreach activities featuring real world problem-solving.The research aims to develop novel anomaly detection algorithms. These will leverage hybrid information from the domain knowledge (represented as prior distributions) and regularization constraints to establish an efficient and effective search direction. Data information embedded in likelihood functions and regression models will reduce the search space for parameter estimation.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

使用具有混合型多元响应，稀疏和未知信号以及大量缺失值的高维实际数据检测异常事件非常具有挑战性。具有空间和时间变量的域知识和数据的架构集成显着提高了模型的可靠性，可解释性和预测准确性。为了预测异常情况，研究者计划开发有效有效的后验抽样算法，并将这些方法应用于与跨学科合作的各种真实数据。包括来自代表性不足的团体的学生，将参与以现实世界解决问题为特色的教育和外展活动。该研究旨在开发新型的异常检测算法。这些将利用域知识（表示为先前分布）和正则化约束的混合信息来建立有效的搜索方向。嵌入了可能性功能和回归模型的数据信息将减少参数估计的搜索空间。该奖项反映了NSF的法定任务，并且被认为是值得通过基金会的智力优点和更广泛的影响评估标准通过评估来获得支持的。