3,991 research outputs found
Dr. Ashley Austin - Faculty Author Interview
No full textDr. Ashley Austin, Assistant Professor of Accounting, discusses a recent article in Contemporary Accounting Research, entitled “Improving Auditors’ Consideration of Evidence Contradicting Management’s Estimate Assumptions.” Dr. Austin’s research interests involve using experimental methods to understand and improve auditors’ judgments and decision making, with a focus on how to motivate auditors to exercise professional skepticism and be alert to fraud throughout the audit
Quantifying the Sim-To-Real Gap in UAV Disturbance Rejection
No full textDue to the safety risks and training sample inefficiency, it is often preferred to develop controllers in simulation. However, minor differences between the simulation and the real world can cause a significant sim-to-real gap. This gap can reduce the effectiveness of the developed controller. In this paper, we examine a case study of transferring an octorotor reinforcement learning controller from simulation to the real world. First, we quantify the effectiveness of the real-world transfer by examining safety metrics. We find that although there is a noticeable (around 100%) increase in deviation in real flights, this deviation may not be considered unsafe, as it will be within > 2m safety corridors. Then, we estimate the densities of the measurement distributions and compare the Jensen-Shannon divergences of simulated and real measurements. From this, we show that the vehicle’s orientation is significantly different between simulated and real flights. We attribute this to a different flight mode in real flights where the vehicle turns to face the next waypoint. We also find that the reinforcement learning controller actions appear to correctly counteract disturbance forces. Then, we analyze the errors of a measurement autoencoder and state transition model neural network applied to real data. We find that these models further reinforce the difference between the simulated and real attitude control, showing the errors directly on the flight paths. Finally, we discuss important lessons learned in the sim-to-real transfer of our controller
Inscription and bookplate in The golden age; a satire
No full textThis edition includes an author-associated bookplate and inscription, "To G--n W---s. April 24 1871." Bookseller has penciled in "To Golden Winnings." 1st Ed. Austin, Poet Laureate of Eng. Austin's Copy with the book plate of his wife on front cover" (obscured by glued on card slip)
Interview with Dr. Mike Austin [video]
No full textDr. Mike Austin is an Associate Professor in the Department of Philosophy and Religion, and author of two recent books, Wise Stewards: Philosophical Foundations for Christian Parenting and Football and Philosophy: Going Deep . He enjoys approaching practical topics like parenting and sports through a philosopher\u27s lens
New taxa and arrangements within the family Latrunculiidae (Demospongiae, Poecilosclerida)
No full textKelly, Michelle, Sim-Smith, Carina, Stone, Robert, Reiswig, Toufiek Samaai Henry, Austin, William (2016): New taxa and arrangements within the family Latrunculiidae (Demospongiae, Poecilosclerida). Zootaxa 4121 (1): 1-48, DOI: 10.11646/zootaxa.4121.1.
Profile piece on the author\u27s 18-year journey from near-death. On Feb. 19, 1984
No full textProfile piece on the author\u27s 18-year journey from near-death. On Feb. 19, 1984, Phyllis Austin was impaled by a tree branch 1.5 inches in diameter that speared the back of her right thigh and buried itself in her upper abdomen. She was cross-country skiing on Pleasant Mountain in Bridgton at the time of the incident and credits Dr. John Doyle, a surgeon at Northern Cumberland Regional Hospital in Bridgton who served in a field hospital in Vietnam, with saving her life. With details about the incident and Austin\u27s long recovery
RAPID applied to the SIM-France model
No full textInternational audienceSIM-France is a large connected atmosphere/land surface/river/groundwater modelling system that simulates the water cycle throughout metropolitan France. The work presented in this study investigates the replacement of the river routing scheme in SIM-France by a river network model called RAPID to enhance the capacity to relate simulated flows to river gauges and to take advantage of the automated parameter estimation procedure of RAPID. RAPID was run with SIM-France over a 10-year period and results compared with those of the previous river routing scheme. We found that while the formulation of RAPID enhanced the functionality of SIM-France, the flow simulations are comparable in accuracy to those previously obtained by SIM-France. Sub-basin optimization of RAPID parameters was found to increase model efficiency. A single criterion for quantifying the quality of river flow simulations using several river gauges globally in a river network is developed that normalizes the square error of modelled flow to allow equal treatment of all gauging stations regardless of the magnitude of flow. The use of this criterion as the cost function for parameter estimation in RAPID allows better results than by increasing the degree of spatial variability in optimization of model parameters. Likewise, increased spatial variability of RAPID parameters through accounting for topography is shown to enhance model performance
The Bibliographic Concept of Work in Cataloguing and its Issues
No full textThis report explores the IFLA’s document Functional Requirements for Bibliographic Records (FRBR). It discusses the notion of work in cataloguing as it was built since the 1950s, inasmuch this notion constitutes the conceptual framework for the proposal. Also, the entity-relationship database modeling (ERDM) system is described as far as such model provides to FRBR the operative elements that make it functional. ERDM gives to FRBR a user-centered approach as well. In its third chapter, the report tests the FRBR model through its application to a set of items belonging to the novel Rayuela, by Julio Cortázar, held at the Benson Latin American Collection of the University of Texas at Austin. Finally, some critical issues are raised along with general conclusions regarding the functionality of the mode
Supporting Public Health Nurses with Breastfeeding Interventions for Late Preterm Infants
No full textLate preterm infants often experience feeding difficulty post discharge from hospital. While breast milk is especially important for late preterm infants, they have lower exclusive breastfeeding rates than full term infants. This is because mothers of late preterm infants often do not receive sufficient amount of breastfeeding support in the postpartum period. Furthermore, in the Canadian context, guidelines do not exist for health care providers to use to assist them in providing breastfeeding support for mothers of late preterm infants in the community setting. We used a modified Delphi approach to begin to fill this gap. We present information relating to physiological development in systems, its significance to feeding, and potential interventions for public health nurses. This information will assist PHNs in their clinical reasoning and decision-making when supporting mothers and their LPIs to exclusively breastfeed in the community
Austin Papers: Series IV, 1831-1834
No full textCopy of transcript for a letter to Stephen F. Austin, in which the author both provides a reference for Henry B. Prentiss, and asks Austin to introduce Prentiss to friends and business contacts in Bexar, Matamoras, Saltillo, Zacatecas, and Mexico
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