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Concept of Operations for Data Fusion Visualization

Description: Situational awareness in the operations and supervision of a industrial system means that decision making entity, whether machine or human, have the important data presented in a timely manner. An optimal presentation of information such that the operator has the best opportunity accurately interpret and react to anomalies due to system degradation, failures or adversaries. Anticipated problems are a matter for system design; however, the paper will focus on concepts for situational awareness enhancement for a human operator when the unanticipated or unaddressed event types occur. Methodology for human machine interface development and refinement strategy is described for a synthetic fuels plant model. A novel concept for adaptively highlighting the most interesting information in the system and a plan for testing the methodology is described.
Date: September 1, 2011
Creator: McJunkin, T.R.; Boring, R.L.; McQueen, M.A.; Shunn, L.P.; Wright, J.L.; Gertman, D.I. et al.
Partner: UNT Libraries Government Documents Department

INL Control System Situational Awareness Technology Final Report 2013

Description: The Situational Awareness project is a comprehensive undertaking of Idaho National Laboratory (INL) in an effort to produce technologies capable of defending the country’s energy sector infrastructure from cyber attack. INL has addressed this challenge through research and development of an interoperable suite of tools that safeguard critical energy sector infrastructure. The technologies in this project include the Sophia Tool, Mesh Mapper (MM) Tool, Intelligent Cyber Sensor (ICS) Tool, and Data Fusion Tool (DFT). Each is designed to function effectively on its own, or they can be integrated in a variety of customized configurations based on the end user’s risk profile and security needs.
Date: January 1, 2013
Creator: Rueff, Gordon; Wheeler, Bryce; Vollmer, Todd & McJunkin, Tim
Partner: UNT Libraries Government Documents Department

INL Control System Situational Awareness Technology Annual Report 2012

Description: The overall goal of this project is to develop an interoperable set of tools to provide a comprehensive, consistent implementation of cyber security and overall situational awareness of control and sensor network implementations. The operation and interoperability of these tools will fill voids in current technological offerings and address issues that remain an impediment to the security of control systems. This report provides an FY 2012 update on the Sophia, Mesh Mapper, Intelligent Cyber Sensor, and Data Fusion projects with respect to the year-two tasks and annual reporting requirements of the INL Control System Situational Awareness Technology report (July 2010).
Date: October 1, 2012
Creator: Rueff, Gordon; Wheeler, Bryce; Vollmer, Todd; McJunkin, Tim & Erbes, Robert
Partner: UNT Libraries Government Documents Department

Relationship of a Situational Interview to the Job Performance of Convenience Store Clerks

Description: A situational interview was developed for use in the selection of convenience store cashiers. One hundred two newly hired cashiers were interviewed using the situational interview. Ninety days later, a performance appraisal was completed for all subjects who were still employed. There was no significant difference in interview scores between those still working 90 days after hire and those who were not (t = 1.14, df = 100, n.s.). Correlations between the total interview scores and the total performance appraisal scores were generally very low or negative. Potential explanations for the failure of the interview to predict turnover or job performance are discussed
Date: August 1990
Creator: Hays, Elizabeth J. (Elizabeth Jane)
Partner: UNT Libraries

Evaluation of the Situational Judgment Test

Description: This research attempts to confirm the reliability and construct validity of a personnel selection instrument called a Situational Judgment Test (SJT) through reliability analysis and factor analysis. The existing literature on SJTs is reviewed, including the advantages of using SJTs in personnel selection as well as the debate on whether SJTs measure a single construct or whether they can be multidimensional depending on the content. The specific SJT in this research was theoretically developed and received expert ratings to assess four general constructs: problem solving, planning, priority setting, and leadership. No support from alpha internal consistency reliability analysis was found for the assembly of these items into the four a priori subscales, thus assembly of these items into the theoretical subscales and scales was not supported.
Date: May 2007
Creator: Conner, Lane A.
Partner: UNT Libraries

Situational Self-Image: A Symbolic Interactionism Approach to Brand-Image/Self-Image Congruency

Description: The situational self-image, which recognizes the affect of situational influences, particularly social roles, was the specific topic of investigation of this study. It has generally been hypothesized in marketing literature that consumers will purchase the brand with the image most congruent with the consumers' self-image. Symbolic Interactionism, a field of study in sociology, provides the theoretical foundations for the construct situational self-image. Realization of the relationship between the situational self-consciousness and involvement was also investigated.
Date: May 1987
Creator: Hildebrand, Peggy Shields
Partner: UNT Libraries

A Structural and Psychometric Evaluation of a Situational Judgment Test: The Workplace Skills Survey

Description: Some basic but desirable employability skills are antecedents of job performance. The Workplace Skills Survey (WSS) is a 48-item situational judgment test (SJT) used to assess non-technical workplace skills for both entry-level and experienced workers. Unfortunately, the psychometric evidence for use of its scores is far from adequate. The purpose of current study was two-fold: (a) to examine the proposed structure of WSS scores using confirmatory factor analysis (CFA), and (b) to explore the WSS item functioning and performance using item response theory (IRT). A sample of 1,018 Jamaican unattached youth completed the WSS instrument as part of a longitudinal study on the efficacy of a youth development program in Jamaica. Three CFA models were tested for the construct validity of WSS scores. Parameter estimations of item difficulty, item discrimination, and examinee’s proficiency estimations were obtained with item response theory (IRT) and plotted in item characteristics curves (ICCs) and item information curves (IICs). Results showed that the WSS performed quite well as a whole and provided precise measurement especially for respondents at latent trait levels of -0.5 and +1.5. However, some modifications of some items were recommended. CFA analyses showed supportive evidence of the one-factor construct model, while the six-factor model and higher-order model were not achieved. Several directions for future research are suggested.
Date: August 2014
Creator: Wei, Min
Partner: UNT Libraries

The use of real-time off-site observations as a methodology for increasing forecast skill in prediction of large wind power ramps one or more hours ahead of their impact on a wind plant.

Description: ABSTRACT Application of Real-Time Offsite Measurements in Improved Short-Term Wind Ramp Prediction Skill Improved forecasting performance immediately preceding wind ramp events is of preeminent concern to most wind energy companies, system operators, and balancing authorities. The value of near real-time hub height-level wind data and more general meteorological measurements to short-term wind power forecasting is well understood. For some sites, access to onsite measured wind data - even historical - can reduce forecast error in the short-range to medium-range horizons by as much as 50%. Unfortunately, valuable free-stream wind measurements at tall tower are not typically available at most wind plants, thereby forcing wind forecasters to rely upon wind measurements below hub height and/or turbine nacelle anemometry. Free-stream measurements can be appropriately scaled to hub-height levels, using existing empirically-derived relationships that account for surface roughness and turbulence. But there is large uncertainty in these relationships for a given time of day and state of the boundary layer. Alternatively, forecasts can rely entirely on turbine anemometry measurements, though such measurements are themselves subject to wake effects that are not stationary. The void in free-stream hub-height level measurements of wind can be filled by remote sensing (e.g., sodar, lidar, and radar). However, the expense of such equipment may not be sustainable. There is a growing market for traditional anemometry on tall tower networks, maintained by third parties to the forecasting process (i.e., independent of forecasters and the forecast users). This study examines the value of offsite tall-tower data from the WINDataNOW Technology network for short-horizon wind power predictions at a wind farm in northern Montana. The presentation shall describe successful physical and statistical techniques for its application and the practicality of its application in an operational setting. It shall be demonstrated that when used properly, the real-time offsite measurements materially improve wind ...
Date: December 31, 2012
Creator: Wilde, Martin
Partner: UNT Libraries Government Documents Department