6,615 research outputs found
Evidence from dollarized countries in Latin America suggests that monetary policy has an effect on prices, but not output
No full textOver the past three decades, monetary policy has become the tool of choice for policymakers who wish to influence the economy. But does pulling the lever of monetary policy actually give the intended result, or are policy changes simply responses to economic developments? Using Latin American countries that use the dollar as a natural experiment, Tim Willems finds that when the U.S. Federal Reserve contracts the money supply, this leads to a fall in prices, and little initial movement of output
Do dolphins benefit from nonlinear mathematics when processing their sonar returns?
No full textAn interview with author Tim Leighton about the paper
Opportunities for linking young surveyors across professional surveying member organisations and FIG
No full textTim Di Muzio on 'Sabotage'
No full textIn a series of essays published in 2013 and 2014 on capitaspower.com, political economist Tim Di Muzio explored the concept of ‘sabotage’ as it applies to capitalist power. I recently rediscovered these essays and was so impressed by them that I have reposted them here as a single piece.
About the author: Tim Di Muzio is a researcher at the University of Wollongong. He is the author of numerous books, including Debt as power, Carbon capitalism, and The 1% and the Rest of us
Bayesian optimisation of existing object detection methods for new contexts
No full textPre-trained object detectors exhibit strong variations in performance when applied in different contexts, e.g., daytime vs. nighttime performance, up-close vs. long range detection. These variations limit the usefulness of pre-trained detectors for safety critical applications like autonomous driving, which require consistent decision making in every context. Retraining for all contexts is often impossible or prohibitively expensive due to the need for large amounts of labels in each context. Instead, we propose a probabilistic calibration layer which takes these context dependencies into account to translate the detection score produced by a pre-trained detector into a conditional probability of presence. As a proof of concept, we demonstrate that reinterpreting the confidence scores of three commonly used detectors based on the estimated distance to the supposed object yields an improvement in average precision of pedestrian detection of up to 3\% on the NuScenes dataset
Context-compensated probabilistic pedestrian detection
No full textAutonomous vehicles are equipped with a wide range of sensors and corresponding object detectors tuned to reliably detect vulnerable road users in a variety of conditions. However, the activation scores of these object detectors are easily influenced by contextual factors. To address this challenge, we propose a probabilistic, sensor-agnostic and context-adaptive calibration layer that translates the activation scores of the candidate detections into likelihood ratios that are tuned to that specific context. Our method, seamlessly integrated with the underlying object detector, effectively enhances detection precision by mitigating contextual biases. As a proof of concept, we demonstrate that calibrating the activation scores for four pre-trained state-of-the-art detectors achieves an average precision improvement of up to 4% on the Waymo open dataset for the specific task of pedestrian detection using regular RGB cameras. In challenging scenarios, the average precision can improve up to 9%. Additionally, we showcase that context-calibration emerges as a viable alternative to conventional transfer learning when dealing with limited datasets
1996-1997 Tim Gautreaux
No full textTim Gautreaux is the author of three novels and two earlier short story collections. His work has appeared in The New Yorker, The Best American Short Stories, The Atlantic, Harper’s, and GQ. After teaching for thirty years at Southeastern Louisiana University, he now lives, with his wife, in Chattanooga, Tennessee. (Photo credit: Randy Bergeron)https://egrove.olemiss.edu/grisham_res/1023/thumbnail.jp
First person - Tim Petzold
No full textFirst Person is a series of interviews with the first authors of a selection of papers published in Biology Open, helping researchers promote themselves alongside their papers. Tim Petzold is first author on ‘ Connexin 41.8 governs timely haematopoietic stem and progenitor cell specification’, published in BiO. Tim conducted the research described in this article while a PhD student in Julien Bertrand's lab at the Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Switzerland. He is now a postdoc in the lab of Holger Gerhardt at the Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany, investigating developmental biology – previously his focus was on how blood stem cells develop and now it has shifted to how the vascular system develops
Tim Seibles, 40th Annual ODU Literary Festival
No full textTim Seibles is the author of several poetry collections including Hurdy-Gurdy, Hammerlock, Buffalo Head Solos, and Fast Animal, which was a finalist for the 2012 National Book Award. In 2013 he received both the Pen Oakland Josephine Miles Award for poetry and an honorary Doctorate of Humane Letters from Misericordia University for his literary accomplishments. His latest collection, One Turn Around the Sun, has just been released. Tim is the current Poet Laureate of Virginia and is a Professor of English at Old Dominion University where he teaches literature as well as classes in the MFA in writing program
Tim Seibles, 39th Annual ODU Literary Festival
No full textTim Seibles is the author of several poetry collections including Hurdy-Gurdy, Hammerlock, Buffalo Head Solos, and Fast Animal, which was a finalist for the 2012 National Book Award. In 2013 he received both the Pen Oakland Josephine Miles Award for poetry and an honorary Doctorate of Humane Letters from Misericordia University for his literary accomplishments. His latest collection, One Turn Around the Sun, has just been released. Tim is the current Poet Laureate of Virginia and is a Professor of English at Old Dominion University where he teaches literature as well as classes in the MFA in writing program
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