Search results for "rover"

Node co-activations as a means of error detection : Towards fault-tolerant neural networks

2022

Context: Machine learning has proved an efficient tool, but the systems need tools to mitigate risks during runtime. One approach is fault tolerance: detecting and handling errors before they cause harm. Objective: This paper investigates whether rare co-activations – pairs of usually segregated nodes activating together – are indicative of problems in neural networks (NN). These could be used to detect concept drift and flagging untrustworthy predictions. Method: We trained four NNs. For each, we studied how often each pair of nodes activates together. In a separate test set, we counted how many rare co-activations occurred with each input, and grouped the inputs based on whether its class…

Convolutional Neural Network Based Sleep Stage Classification with Class Imbalance

2022

Accurate sleep stage classification is vital to assess sleep quality and diagnose sleep disorders. Numerous deep learning based models have been designed for accomplishing this labor automatically. However, the class imbalance problem existing in polysomnography (PSG) datasets has been barely investigated in previous studies, which is one of the most challenging obstacles for the real-world sleep staging application. To address this issue, this paper proposes novel methods with signal-driven and image-driven ways of noise addition to balance the imbalanced relationship in the training dataset samples. We evaluate the effectiveness of the proposed methods which are integrated into a convolut…

Exploring Oscillatory Dysconnectivity Networks in Major Depression During Resting State Using Coupled Tensor Decomposition

2022

Dysconnectivity of large-scale brain networks has been linked to major depression disorder (MDD) during resting state. Recent researches show that the temporal evolution of brain networks regulated by oscillations reveals novel mechanisms and neural characteristics of MDD. Our study applied a novel coupled tensor decomposition model to investigate the dysconnectivity networks characterized by spatio-temporal-spectral modes of covariation in MDD using resting electroencephalography. The phase lag index is used to calculate the functional connectivity within each time window at each frequency bin. Then, two adjacency tensors with the dimension of time frequency connectivity subject are constr…

Composición taxonómica y análisis tafonómico del conjunto óseo recuperado en el yacimiento pleistoceno de La Salema (Facheca, Alicante)

2017

En el año 2007 se recuperaron 330 elementos fósiles pertenecientes, en su mayoría, a grandes mamíferos del Pleistoceno en el yacimiento paleontológico de La Salema situado en el norte de la provincia de Alicante. Estos restos han sido clasificados taxonómicamente, identificándose catorce grupos diferentes, de los cuales seis pertenecen a grandes mamíferos herbívoros del orden Perissodactyla y Artiodactyla, otros seis pertenecen a mamíferos carnívoros, además de haberse encontrado algunos restos óseos de lagomorfos y quelonios. También se ha realizado el análisis tafonómico de algunos de los elementos fósiles para poder determinar el origen de las acumulaciones óseas en el yacimiento, centrá…

La controversia sobre el determinismo en la física: una controversia sobre estilos

2023

El determinismo en sus diferentes acepciones fue un tema de recurrente discusión en las diferentes comunidades científicas a lo largo de los siglos XIX y XX. Para la física en particular, esta discusión se introduce con la aparición de las primeras leyes estadísticas durante la segunda mitad del siglo XIX y se prolonga hasta la actualidad. Dada la vigencia de este tema, considero que su análisis desde diferentes perspectivas es importante. Por este motivo, presento a continuación una serie de artículos que proponen una mirada de esta controversia a partir de la articulación de varias herramientas conceptuales: los espacios controversiales de Oscar Nudler, los estilos de razonamiento de Ian …

Associations between the dopamine D4 receptor gene polymorphisms and personality traits in elite athletes.

2019

Personality traits and temperament may affect sports performance. Previous studies suggest that dopamine may play an important role in behavior regulation and physical exercise performance. The aim of this study is to determine associations between dopamine D4 receptor gene (DRD4 Ex3) polymorphisms and personality traits (such as neuroticism, extraversion, openness, agreeability and conscientiousness) in elite combat athletes. A total of 302 physically active, unrelated, self-reported Caucasian participants were recruited for this study. The participants consisted of 200 elite male combat athletes and 102 healthy male participants (control group). For personality trait measurements, the NEO…

Emotional intelligence, resilience and personality traits neuroticism and extraversion: predictive capacity in perceived academic efficacy.

2021

Abstract Background Recent studies have shown the importance of promoting emotional intelligence and resilience, as well as knowing the personality (extraversion versus emotional instability or neuroticism) in both nursing students and nursing professionals, for better academic adherence, due to stressful situations derived from high academic and attendance requirements for healthcare practices in clinical settings. However, there is little research that analyzes the importance of the perceived academic effectiveness of university students and its relationship with the psychological variables of resilience, emotional intelligence and personality. Objective To analyse the relationships betwe…

Personality predictors of social status attainment

2019

The current review summarizes recent advances in research on personality predictors of status attainment. In line with previous research, recent studies indicate that extraverted and narcissistic individuals tend to attain status in groups. Research on mediating processes includes a wide range of underlying motivational, behavioral, and interpersonal perception processes. Most generally speaking, those high in extraversion and narcissism attain status because they are more motivated to do so and thus display assertive behavior that makes them look competent. Situational contexts, group tasks, and cultural contexts can moderate the personality-status links by shaping these processes. For exa…

P02-358 - Clinical Findings on Computergame Addiction: The Role of Personality, Stress and Coping

2010

IntroductionBehavioral addictions, like computergame addiction respectively internet addiction, have become a growing concern in research. Currently similarities between behavioral addictions and substance dependency are discussed in the scientific community controversially. Unfortunately a mismatch exists between high rates of treatment seeking people and low rates of scientific studies on computergame-addiction, especially concerning risk factors and their contribution to the etiology of computergame addiction.ObjectivesThe aim of this contribution is to shed light on possible etiological factors of computergame addiction concerning personality and vulnerability to stress in clients of th…

2018

Objective: Acromegalic patients display a distinct neuropsychological profile and suffer from chronic physical complaints. We aimed to investigate in more detail these aspects in acromegalic patients, dependent on influencing factors like disease activity, age, sex, chronic medication, surgery, pituitary radiation, pituitary insufficiency and comorbidities. Design: Cross sectional, multicentric. Methods: 129 patients (M/W 65/64, 58.3 ± 12.7 years, 53/76 with active/controlled disease). Acromegalic patients completed the following inventories: NEO-FFI, IIP-D, and the Giessen Complaints List (GBB-24), after written informed consent. Age, sex, IGF-1 concentrations, comorbidities, treatment mod…