Search results for "Regret"
showing 10 items of 31 documents
Learning of Cooperative Behaviour in Robot Populations
2016
This paper addresses convergence and equilibrium properties of game theoretic learning algorithms in robot populations using simple and broadly applicable reward/cost models of cooperation between robotic agents. New models for robot cooperation are proposed by combining regret based learning methods and network evolution models. Results of mean-field game theory are employed in order to show the asymptotic second moment boundedness in the variation of cooperative behaviour. The behaviour of the proposed models are tested in simulation results, which are based on sample networks and a single lane traffic flow case study.
Incidental findings in a series of 2500 gene panel tests for a genetic predisposition to cancer: Results and impact on patients.
2020
Abstract With next generation sequencing, physicians are faced with more complex and uncertain data, particularly incidental findings (IF). Guidelines for the return of IF have been published by learned societies. However, little is known about how patients are affected by these results in a context of oncogenetic testing. Over 4 years, 2500 patients with an indication for genetic testing underwent a gene cancer panel. If an IF was detected, patients were contacted by a physician/genetic counsellor and invited to take part in a semi-structured interview to assess their understanding of the result, the change in medical care, the psychological impact, and the transmission of results to the f…
Die Herausbildung von Zufriedenheits-urteilen bei Alternativenbetrachtung
1999
Traditional elements of competitive differentiation are declining. As industries and firms worldwide face increasing competition, slower growth rates, and price pressures, greater attention is being placed on customer satisfaction. However the research in satisfaction never consider alternatives, when customer satisfaction is formed. It has been the approach of this paper to present an extension for this circumstance. Therefor the regret theory, a diversion of the expectation utility theory, is used to explain the phenomena. According to this theory, each outcome has associated with it the evaluation of the difference between the outcome and the outcome that would have been received had a d…
The Role of the Brand on Choice Overload
2019
Current research on choice overload has been mainly conducted with choice options not associated with specific brands. This study investigates whether the presence of brand names in the choice set affects the occurrence of choice overload. Across four studies, we find that when choosing among an overabundance of alternatives, participants express more positive feelings (i.e., higher satisfaction/confidence, lower regret and difficulty) when all the options of the choice set are associated with familiar brands, rather than unfamiliar brands or no brand at all. We also find that choice overload only appears in the absence of brand names, but disappears when all options contain brand names—eit…
Thompson Sampling for Dynamic Multi-armed Bandits
2011
The importance of multi-armed bandit (MAB) problems is on the rise due to their recent application in a large variety of areas such as online advertising, news article selection, wireless networks, and medicinal trials, to name a few. The most common assumption made when solving such MAB problems is that the unknown reward probability theta k of each bandit arm k is fixed. However, this assumption rarely holds in practice simply because real-life problems often involve underlying processes that are dynamically evolving. In this paper, we model problems where reward probabilities theta k are drifting, and introduce a new method called Dynamic Thompson Sampling (DTS) that facilitates Order St…
Justification, Attachments and Regret
2017
Abstract: In The View From Here, Jay Wallace emphasises that an agent's capacity to regret a past decision is conditioned by the attachments that she may have developed as a result. Those attachments shape the point of view from which she retrospectively deliberates. Wallace stresses, however, that not every normative aspect of her decision is affected by this change in perspective, because her decision will remain as unjustified as it was in the past. I will argue, however, that this approach to justification is inconsistent with the normative import that Wallace ascribes to the actual dynamics of our attachments in his defence of the rationale of regret. If I am right, Wallace's approach …
Teoría de la educación : revista interuniversitaria
2017
En el campo de la educación nos encontramos actualmente con dos importantes requerimientos, sólidamente fundamentados, para introducir la Educación para la Sostenibilidad y la Educación en Derechos Humanos. Se trata, en efecto, de dos áreas educativas prioritarias, a las que UNESCO ha dedicado sendos decenios. Es preciso reconocer, sin embargo, la escasa conexión entre ambas, así como su insuficiente presencia en el sistema educativo, muy particularmente en el nivel universitario. Nuestro propósito en este trabajo es, precisamente, mostrar que, contrariamente a lo que, en general, se ha venido considerando, ambos campos de conocimiento y actividad social están estrechamente vinculados y deb…
Corrigendum to “Personal protective equipment and intensive care unit healthcare worker safety in the COVID-19 Era (PPE-SAFE): An international surve…
2021
The authors regret errors were present in the published article. Counts of some of the adverse events were erroneous. Changes to the text include. Last sentence of the abstract should read. Adverse effects of PPE included heat (1266, 51%), thirst (1174, 47%), pressure areas (1088, 44%), headaches (696, 28%), Inability to use the bathroom (661, 27%) and extreme exhaustion (492, 20%). All but pressure areas were associated with longer shift durations. Last sentence of the results section of the manuscript should read. All but pressure areas were associated with longer duration of shifts wearing PPE (Table 4). Table 1 the total number of community/urban type of hospital should read 740 instead…
Tracking of Quantized Signals Based on Online Kernel Regression
2021
Kernel-based approaches have achieved noticeable success as non-parametric regression methods under the framework of stochastic optimization. However, most of the kernel-based methods in the literature are not suitable to track sequentially streamed quantized data samples from dynamic environments. This shortcoming occurs mainly for two reasons: first, their poor versatility in tracking variables that may change unpredictably over time, primarily because of their lack of flexibility when choosing a functional cost that best suits the associated regression problem; second, their indifference to the smoothness of the underlying physical signal generating those samples. This work introduces a …
Predicting Social Distancing Intention and Behavior During the COVID-19 Pandemic: An Integrated Social Cognition Model.
2020
Abstract Background Social distancing is a key behavior to minimize COVID-19 infections. Identification of potentially modifiable determinants of social distancing behavior may provide essential evidence to inform social distancing behavioral interventions. Purpose The current study applied an integrated social cognition model to identify the determinants of social distancing behavior, and the processes involved, in the context of the COVID-19 pandemic. Methods In a prospective correlational survey study, samples of Australian (N = 365) and U.S. (N = 440) residents completed online self-report measures of social cognition constructs (attitude, subjective norm, moral norm, anticipated regret…