Missing Sensor Data Restoration: Computationally Intelligent Discovery of Reading Dependencies

丢失的传感器数据恢复：读取依赖性的计算智能发现

• 批准号: 0114483
• 负责人: Mohamed El-Sharkawi
• 金额: $ 24万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-15 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0114483&HistoricalAwards=false
• 关键词: Missing; Sensor; Data; Restoration; Computationally

0114483El-SharkawiThis project will explore the possibility of using new techniques from computational intelligence in order to address the task of imputing missing values in data collected by complex arrays of sensors. Sensors in a restricted environment can have readings relating to each other in such a matter that missing data from a set of failed sensors can be restored from the measurement of those remaining. When the reconstructed sensor readings are supplied as input to a process, the operation of the system is therefore still possible. Overall performance will degrade gracefully, if at all. Discovery of data constraints can be achieved by training an autoencoder using sensor data. The trained encoder, having empirically discovered interrelations among data, can then be used to restore lost readings from failed sensors. This is achieved through either application of an alternating projection onto convex set (POCS) algorithm or a more conventional search.Successful development of missing sensor data (MISED) restoration will have significant impact on a number of current technologies. The project will focus on applications to currently open and important problem in energy and avionics. The project has strong support from both industries.

0114483 El-Sharkawi该项目将探索使用计算智能新技术的可能性，以解决在复杂传感器阵列收集的数据中输入缺失值的任务。 受限环境中的传感器可以具有彼此相关的读数，使得来自一组故障传感器的丢失数据可以从剩余传感器的测量中恢复。当重建的传感器读数作为输入提供给过程时，系统的操作因此仍然是可能的。整体性能将优雅地下降，如果有的话。 数据约束的发现可以通过使用传感器数据训练自动编码器来实现。经过训练的编码器根据经验发现了数据之间的相互关系，然后可以用于恢复故障传感器的丢失读数。这是通过应用交替投影到凸集（POCS）算法或更传统的search. Missing传感器数据（MISED）恢复的成功发展将有显着的影响，目前的一些技术。该项目将集中在能源和航空电子领域当前开放和重要问题的应用上。该项目得到了双方的大力支持。