1,129 research outputs found
Correction. Central limit theorems for additive functionals of the simple exclusion process
Correction to Annals of Probability 28 (2000) 277--302
[doi:10.1214/aop/1019160120].Comment: Published at http://dx.doi.org/10.1214/009117905000000521 in the
Annals of Probability (http://www.imstat.org/aop/) by the Institute of
Mathematical Statistics (http://www.imstat.org
A Comparative study to find out the effect of Task Oriented Training along with specially developed serious games and Task Oriented Training alone on Lower Extremity Function in Diplegic Cerebral Palsy
The purpose of the study was to find out the effect of task oriented training alone and task oriented training with specially developed serious games on lower extremity function in Diplegic cerebral palsy.
Based on the statistical analysis Group B subjects shows a significant improvement than Group A. The task oriented training was proved to improve balance and gait whereas the task oriented training along with specially developed serious games gives much more improvement of balance and gait in lower extremity function in Diplegic cerebral palsy.
Thus the study was concluded that task oriented training with specially developed serious games helps to improve the balance and gait in children with Diplegic cerebral palsy
Growth of preferential attachment random graphs via continuous-time branching processes
A version of ``preferential attachment'' random graphs, corresponding to
linear ``weights'' with random ``edge additions,'' which generalizes some
previously considered models, is studied. This graph model is embedded in a
continuous-time branching scheme and, using the branching process apparatus,
several results on the graph model asymptotics are obtained, some extending
previous results, such as growth rates for a typical degree and the maximal
degree, behavior of the vertex where the maximal degree is attained, and a law
of large numbers for the empirical distribution of degrees which shows certain
``scale-free'' or ``power-law'' behaviors.Comment: 20 page
Atypical behaviors of a tagged particle in asymmetric simple exclusion
Consider the asymmetric nearest-neighbor exclusion process (ASEP) on
with single particle drift , starting from a Bernoulli
product invariant measure with density . It is known that the
position of a tagged particle, say initially at the origin, at time
satisfies an a.s. law of large numbers as .
In this context, we study the `typical' behavior of the tagged particle and
`bulk' density evolution subject to `atypical' events or
for . We detail different structures,
depending on whether , , , or , under which these atypical events are achieved, and
compute associated large deviation costs. Among our results is an `upper tail'
large deviation principle in scale for .Comment: 39 page
Throughput Optimization in High Speed Downlink Packet Access (HSDPA)
In this paper, we investigate throughput optimization
in High Speed Downlink Packet Access (HSDPA). Specifically,
we propose offline and online algorithms for adjusting
the Channel Quality Indicator (CQI) used by the network to
schedule data transmission. In the offline algorithm, a given
target BLER is achieved by adjusting CQI based on ACK/NAK
history. By sweeping through different target BLERs, we can
find the throughput optimal BLER offline. This algorithm could
be used not only to optimize throughput but also to enable fair
resource allocation among mobile users in HSDPA. In the online
algorithm, the CQI offset is adapted using an estimated short
term throughput gradient without specifying a target BLER. An
adaptive stepsize mechanism is proposed to track temporal variation
of the environment. We investigate convergence behavior
of both algorithms. Simulation results show that the proposed
offline algorithm can achieve the given target BLER with good
accuracy. Both algorithms yield up to 30% HSDPA throughput
improvement over that with 10% target BLER
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