Results 251 to 260 of about 6,596,021 (288)
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2017
This chapter examines the main mechanisms leading to positive feedbacks, that is, self-reinforcement, such as imitative behavior and herding between investors. It shows that positive feedbacks contribute to the development of speculative bubbles, preparing the instability for a major crash. After providing an overview of feedbacks and self-organization
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This chapter examines the main mechanisms leading to positive feedbacks, that is, self-reinforcement, such as imitative behavior and herding between investors. It shows that positive feedbacks contribute to the development of speculative bubbles, preparing the instability for a major crash. After providing an overview of feedbacks and self-organization
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Visual Feedback and Positioning Movements
Journal of Motor Behavior, 1975Subjects (n = 60) performed both the reproduction and learning of a linear positioning movement under one of five visual feedback conditions. Results from two experiments indicated that visual cues from the task display augmented information available from visual feedback of the movement per se.
K M, Newell, R A, Chew
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Feedback information and the reward positivity
International Journal of Psychophysiology, 2018The reward positivity is a component of the event-related brain potential (ERP) sensitive to neural mechanisms of reward processing. Multiple studies have demonstrated that reward positivity amplitude indices a reward prediction error signal that is fundamental to theories of reinforcement learning. However, whether this ERP component is also sensitive
Cockburn, Jeffrey, Holroyd, Clay B.
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Positive feedback in aquatic ecosystems
Trends in Ecology & Evolution, 1992Aquatic ecosystems offer striking examples of how positive feedback can be integral to the dynamics of complex communities. In particular, microorganisms (bacteria and protozoa) introduce a multitude of positive feedback pathways by rapidly recycling nutrients at the very base of many aquatic food webs.
L, Stone, R S, Weisburd
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Collaborative Filtering with Implicit Feedbacks by Discounting Positive Feedbacks
2016 IEEE Second International Conference on Multimedia Big Data (BigMM), 2016Recommender Systems are indispensable to provide personalized services on the Web. Recommending items which match a user's preference has been researched for a long time, and there exist a lot of useful approaches. Especially, Collaborative Filtering, which gives recommendation based on users' feedbacks to items, is considered useful.
Kento Kawai, Hiroyuki Kitagawa
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Positive Feedback of Gonadotropins in Males
Andrologia, 2009The influence of estradiol and progesterone upon serum LH and FSH has been evaluated in three groups of five normal adult males. These steroids were administered to ascertain whether the hypothalamus and pituitary in the male possesses the capability for acute release and positive feedback of gonadotropins, a well established characteristic of the ...
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Positive Position Feedback (PPF) Control
2013This chapter presents the design of a positive position feedback (PPF) controller based on low-pass filters and band-pass filters. In Sect. 6.1, the principle of the PPF controller is presented based on the single degree of freedom (SDOF) case. In Sect.
Qibo Mao, Stanislaw Pietrzko
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Positive feedback amplifies ferroptosis
Nature Cell Biology, 2022Jason Rodencal, Scott J. Dixon
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