نتایج جستجو برای: averaging interval

تعداد نتایج: 220091  

Journal: :Vision Research 2002
Dirk Kerzel

The perceived and remembered position of stationary target objects is subject to a large number of distortions. Objects are localized toward the fovea, and when an additional object (distractor) is presented, a tendency to average target and distractor position was observed. These distortions in visual short-term memory have been referred to as foveal bias and memory averaging, respectively. Be...

2009
BOHUMÍR OPIC

Let 1 < p ≤ q < +∞ and let v, w be weights on (0,+∞) satisfying: v(x)xρ is equivalent to a non-decreasing function on (0,+∞) for some ρ ≥ 0; [w(x)x] ≈ [v(x)x] for all x ∈ (0,+∞). Let A be the averaging operator given by (Af)(x) := 1 x R x 0 f(t) dt, x ∈ (0,+∞). First, we prove that the operator A : L((0,+∞); v)→ L((0,+∞); v) is bounded if and only if the operator A : L((0,+∞); v)→ L((0,+∞);w) i...

Journal: :Journal of the experimental analysis of behavior 1993
A K Reid G Bacha C Morán

Various theories of temporal control and schedule induction imply that periodic schedules temporally modulate an organism's motivational states within interreinforcement intervals. This speculation has been fueled by frequently observed multimodal activity distributions created by averaging across interreinforcement intervals. We tested this hypothesis by manipulating the cost associated with s...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1997
S G Lisberger V P Ferrera

The visual input for pursuit eye movements is represented in the cerebral cortex as the distributed activity of neurons that are tuned for both the direction and speed of target motion. To probe how the motor system uses this distributed code to compute a command for smooth eye movements, we have recorded the initiation of pursuit for 150 msec presentations of two spots moving at different spee...

2010
Mark Podolskij Uwe Walz

This paper provides theory as well as empirical results for pre-averaging estimators of the daily quadratic variation of asset prices. We derive jump robust inference for pre-averaging estimators, corresponding feasible central limit theorems and an explicit test on serial dependence in microstructure noise. Using transaction data of different stocks traded at the NYSE, we analyze the estimator...

Journal: :Gazi Üniversitesi Fen Bilimleri dergisi 2022

In this paper, we develop to a new operator by using together IVBFS and Dombi operators. Also, the some properties of concept are introduced like addition, scalar multiplication, power, multiplication. The presented is Interval Valued Bipolar Fuzzy Prioritized Weighted Averaging (IVBFPWDA) various offered idempotency, monotoncity, boundedness. Then, present score function similar over (IVBFSs) ...

Journal: :International journal of comparative psychology 2015
Andrew R Delamater Dorie-Mae Nicolas

The present study examined factors that affect temporal averaging in rats when discriminative stimuli are compounded following separate training indicating the availability of reward after different fixed intervals (FI) on a peak procedure. One group of rats, Group Differential, learned that a flashing light stimulus signaled that one type of food pellet reward could be earned for lever pressin...

2013
Huiyu Huang

in the prediction of quantiles of daily Standard & Poor’s 500 (S&P 500) returns we consider how to use high-frequency 5-minute data. We examine methods that incorporate the high frequency information either indirectly, through combining forecasts (using forecasts generated from returns sampled at different intraday interval), or directly, through combining high frequency information into one mo...

Journal: :Computational Statistics & Data Analysis 2011
David Fletcher Peter W. Dillingham

We consider the coverage rate of model-averaged confidence intervals for the treatment means in a factorial experiment, whenwe use a normal linearmodel in the analysis.Modelaveraging provides a useful compromise between using the full model (containing all main effects and interactions) and a ‘‘best model’’ obtained by some model-selection process. Use of the full model guarantees perfect cover...

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