Tools
Sorted by:
Try your query at:
 |
 |
 |
 |
 |
 |
Results 1 - 10
of
2,287
distinct mechanisms over different timescales
"... of bacterial genome content through distinct mechanisms over different timescales (Article begins on next page) The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters. ..."
Abstract
- Add to MetaCart
of bacterial genome content through distinct mechanisms over different timescales (Article begins on next page) The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters.
Market panic on different time-scales
, 2010
"... Cross-sectional signatures of market panic were recently discussed on daily time scales in [1], extended here to a study of cross-sectional properties of stocks on intra-day time scales. We confirm specific intra-day patterns of dispersion and kurtosis, and find that the correlation across stocks in ..."
Abstract
- Add to MetaCart
correlations. However, the kurtosis de-creases only slightly in contrast to findings on daily time-scales where kurtosis drops drastically in times of panic. Our study indicates that this difference in behavior is result of the origin of the panic-inducing volatility shock: the more correlated across stocks
Efficient Scheduling of Behavior-Processes on Different Time-Scales
"... In behavior-oriented robotics, the control of a system is distributed over various processes or behaviors running in virtual parallel. But the assignment of processing power to different processes is a non-trivial task. Existing approaches to this problem like rate-monotonic scheduling focus on the ..."
Abstract
- Add to MetaCart
on the fulfillment of deadlines, i.e., upper time-bounds. For behavioral control, the periodicy of processes is also of interest. Here, a novel scheduling algorithm for behavioral processes at different time-scales is introduced, which ensures timeoptimal and periodically balanced execution. 1
Volatility-return dynamics across different timescales
, 2004
"... This paper proposes a simple yet powerful methodology to analyze the re-lationship between stock market return and volatility at multiple time scales (horizons). The high frequency DJIA index is studied at intraday (within a trading day) and at interday (any horizon longer than a trading day) horizo ..."
Abstract
- Add to MetaCart
) horizons. Based on the proposed decomposition, we are able to disentangle the relation-ship between volatility and return at different timescales. Particularly, we show that the leverage effect (negative correlation between current return and future volatility) is weak at high frequencies, and becomes
Observations of the morphodynamic behaviour of an intertidal mudflat at different timescales
- Eds.), Sedimentary Processes in the Intertidal Zone. The Geological Society, London, Special Publications 139
, 1998
"... Abstract: This paper concerns the morphological (bed level) behaviour of the intertidal mudflat at Portishead on the Severn Estuary and discusses how the prevailing hydraulic and cohesive sediment processes contribute to bserved changes in the bed level. The characteristics of the mudflat behaviour ..."
Abstract
-
Cited by 6 (0 self)
- Add to MetaCart
) and the processes operating during the dry part of the tide. Hence, the bed level is controlled by the phasing of the tidal range (ambient sediment supply) with local water depth and wave activity. In comparison, on the annual timescale the bed level variation on the middle and upper mudflat is of the order of 100
1 COX REGRESSION USING DIFFERENT TIME-SCALES
"... Typically in cohort studies, the time-scale used in Cox regression models is time-on-study, adjusting for age as a covariate. However, age can also be used as the time-scale, where subjects enter the analysis at their baseline age (left-truncation) and exit at their event/censoring age. Using SAS ® ..."
Abstract
- Add to MetaCart
factor of interest. Using a time-on-study time-scale adjusting for age continuous in years produced a slight overestimate of the alcohol effect compared with the more accurate but computationally more intensive age time-scale methods. However, allowing for different age effects for younger and older ages
Evaluation of Disk-level Workloads at Different Time-scales
"... In this paper, we characterize three different sets of disk-level traces collected from enterprise systems. The data sets differ in the granularity of the recorded information and are called accordingly the Millisecond, the Hour, and the Lifetime traces. We analyze the disklevel utilization, the ava ..."
Abstract
-
Cited by 2 (0 self)
- Add to MetaCart
In this paper, we characterize three different sets of disk-level traces collected from enterprise systems. The data sets differ in the granularity of the recorded information and are called accordingly the Millisecond, the Hour, and the Lifetime traces. We analyze the disklevel utilization
Interacting adaptive processes with different timescales underlie short-term motor learning
- PLoS Biol
, 2006
"... Multiple processes may contribute to motor skill acquisition, but it is thought that many of these processes require sleep or the passage of long periods of time ranging from several hours to many days or weeks. Here we demonstrate that within a timescale of minutes, two distinct fast-acting process ..."
Abstract
-
Cited by 46 (0 self)
- Add to MetaCart
rates. Citation: Smith MA, Ghazizadeh A, Shadmehr R (2006) Interacting adaptive processes with different timescales underlie short-term motor learning. PLoS Biol 4(6): e179. DOI:
Singular Perturbation Analysis of Competitive Neural Networks with Different Time-Scales
, 1996
"... this paper is to apply a stability analysis method of fixed points of the combined activity and weight dynamics for a special class of competitive neural networks. We present a quadratic--type Lyapunov function for the flow of a competitive neural system with fast and slow dynamic variables as a glo ..."
Abstract
-
Cited by 5 (1 self)
- Add to MetaCart
global stability method and a modality of detecting the local stability behaviour around individual equilibrium points. 1 Introduction--The Class of Neural Networks with Different Time--Scales Competitive neural networks with a combined activity and weight dynamics constitute an important class
Results 1 - 10
of
2,287
