ATLAS Online Data Quality Monitoring

Data Quality Monitoring Display for ATLAS experiment

The start of collisions at the LHC brings a new era of particle physics and much improved potential to observe signatures of new physics. Some of these may be evident already from the very beginning of collisions. It’s essential at this point in the experiment to be prepared to quickly and efficiently determine the quality of the incoming data. Easy visualization of data for the shift crew and ...

ATLAS RPC offline monitoring and data quality assessment

In this work several aspects of ATLAS RPC offline monitoring and data quality assessment are illustrated with cosmics data selected by RPC trigger. These correspond to trigger selection, front-end mapping, detection efficiency and occupancy, which are studied in terms of low level quantities such as: RPC off-line hits and standalone tracks. The tools and techniques presented are also extended t...

Monitoring Data Product Quality

Commissioning of ATLAS Data Quality Infrastructure with First Collision Data

During particle physics data taking, the data being recorded must be monitored and checked continuously and promptly. The data quality system of the ATLAS experiment at the Large Hadron Collider provides the means to investigate and monitor the data recorded. Over the course of 2010, this system has been commissioned successfully with first collision data. Data quality monitoring enables prompt...

Online Monitoring for Industrial Processes Quality Control Using Time Varying Parameter Model

A novel data-driven soft sensor is designed for online product quality prediction and control performance modification in industrial units. A combined approach of time variable parameter (TVP) model, dynamic auto regressive exogenous variable (DARX) algorithm, nonlinear correlation analysis and criterion-based elimination method is introduced in this work. The soft sensor performance validation...