634 research outputs found
'Learning Styles' and 'Approaches to Studying' in Sports-Related Programmes: Relationships to Academic Achievement and Implications for Successful Learning, Teaching and Assessment: Project Report Summary
There are relatively few recent investigations that have addressed the issues of preferred learning styles and approaches to studying in sports-related disciplines such as: Sports Studies; Sports and Exercise Science; Coaching Science; Sport and Leisure Management and Outdoor Recreation Management. The purpose of this study was therefore to examine student learning across a range of sport-related programmes at a UK University College. It applied tools from two related, but different, educational research paradigms: approaches to learning and learning styles analysis. Thus, these differing means of researching student learning were tested against the same student group. Results were compared to students’ perceptions of their own developing autonomy of learning and achieved grades; insights were generated into the particular learning approaches and styles of sports students; and tentative recommendations are made on the implications of the findings for higher education teachers seeking to promote improvements in the learning of sports subjects
Stochastic simulation framework for the Limit Order Book using liquidity motivated agents
In this paper we develop a new form of agent-based model for limit order
books based on heterogeneous trading agents, whose motivations are liquidity
driven. These agents are abstractions of real market participants, expressed in
a stochastic model framework. We develop an efficient way to perform
statistical calibration of the model parameters on Level 2 limit order book
data from Chi-X, based on a combination of indirect inference and
multi-objective optimisation. We then demonstrate how such an agent-based
modelling framework can be of use in testing exchange regulations, as well as
informing brokerage decisions and other trading based scenarios
Survival Models for the Duration of Bid-Ask Spread Deviations
Many commonly used liquidity measures are based on snapshots of the state of
the limit order book (LOB) and can thus only provide information about
instantaneous liquidity, and not regarding the local liquidity regime. However,
trading in the LOB is characterised by many intra-day liquidity shocks, where
the LOB generally recovers after a short period of time. In this paper, we
capture this dynamic aspect of liquidity using a survival regression framework,
where the variable of interest is the duration of the deviations of the spread
from a pre-specified level. We explore a large number of model structures using
a branch-and-bound subset selection algorithm and illustrate the explanatory
performance of our model
Langevin and Hamiltonian based Sequential MCMC for Efficient Bayesian Filtering in High-dimensional Spaces
Nonlinear non-Gaussian state-space models arise in numerous applications in
statistics and signal processing. In this context, one of the most successful
and popular approximation techniques is the Sequential Monte Carlo (SMC)
algorithm, also known as particle filtering. Nevertheless, this method tends to
be inefficient when applied to high dimensional problems. In this paper, we
focus on another class of sequential inference methods, namely the Sequential
Markov Chain Monte Carlo (SMCMC) techniques, which represent a promising
alternative to SMC methods. After providing a unifying framework for the class
of SMCMC approaches, we propose novel efficient strategies based on the
principle of Langevin diffusion and Hamiltonian dynamics in order to cope with
the increasing number of high-dimensional applications. Simulation results show
that the proposed algorithms achieve significantly better performance compared
to existing algorithms
Liquidity commonality does not imply liquidity resilience commonality: A functional characterisation for ultra-high frequency cross-sectional LOB data
We present a large-scale study of commonality in liquidity and resilience
across assets in an ultra high-frequency (millisecond-timestamped) Limit Order
Book (LOB) dataset from a pan-European electronic equity trading facility. We
first show that extant work in quantifying liquidity commonality through the
degree of explanatory power of the dominant modes of variation of liquidity
(extracted through Principal Component Analysis) fails to account for heavy
tailed features in the data, thus producing potentially misleading results. We
employ Independent Component Analysis, which both decorrelates the liquidity
measures in the asset cross-section, but also reduces higher-order statistical
dependencies.
To measure commonality in liquidity resilience, we utilise a novel
characterisation as the time required for return to a threshold liquidity
level. This reflects a dimension of liquidity that is not captured by the
majority of liquidity measures and has important ramifications for
understanding supply and demand pressures for market makers in electronic
exchanges, as well as regulators and HFTs. When the metric is mapped out across
a range of thresholds, it produces the daily Liquidity Resilience Profile (LRP)
for a given asset. This daily summary of liquidity resilience behaviour from
the vast LOB dataset is then amenable to a functional data representation. This
enables the comparison of liquidity resilience in the asset cross-section via
functional linear sub-space decompositions and functional regression. The
functional regression results presented here suggest that market factors for
liquidity resilience (as extracted through functional principal components
analysis) can explain between 10 and 40% of the variation in liquidity
resilience at low liquidity thresholds, but are less explanatory at more
extreme levels, where individual asset factors take effect
Loss Distribution Approach for Operational Risk Capital Modelling under Basel II: Combining Different Data Sources for Risk Estimation
The management of operational risk in the banking industry has undergone
significant changes over the last decade due to substantial changes in
operational risk environment. Globalization, deregulation, the use of complex
financial products and changes in information technology have resulted in
exposure to new risks very different from market and credit risks. In response,
Basel Committee for banking Supervision has developed a regulatory framework,
referred to as Basel II, that introduced operational risk category and
corresponding capital requirements. Over the past five years, major banks in
most parts of the world have received accreditation under the Basel II Advanced
Measurement Approach (AMA) by adopting the loss distribution approach (LDA)
despite there being a number of unresolved methodological challenges in its
implementation. Different approaches and methods are still under hot debate. In
this paper, we review methods proposed in the literature for combining
different data sources (internal data, external data and scenario analysis)
which is one of the regulatory requirement for AMA
Participation Motivation in Martial Artists in the West Midlands Region of England
The objectives were to identify the participation motivations and the perceived importance of certain
participation factors in martial artists in the West Midlands, England, UK. A 28-item adapted version of the Participation Motivation Questionnaire with additional demographic questions was distributed to 30 martial arts clubs in the West Midlands region. Eight questions that assessed the perceived importance
for participation of progression through grades, learning self defence skills, technical ability of
instructors, cost of participating, development of confidence, underpinning philosophy and instructional
style were included. Seventy-five questionnaires were returned from a total of 11 clubs from across
representing practitioners in Tai Chi, Karate, Kung fu, Aikido, Jeet Kune Do, British Free Fighting,
Taekwon-Do and Jujitsu. Results indicated that the rank order in terms of participation motives was: 1-
Affiliation; 2-Friendship; 3-Fitness; 4-Reward/status; 5-Competition; 6-Situational and 7-Skill
development. Participants who trained for more than 4 hours per week placed greater importance on the
underpinning philosophy of the martial art. Findings suggest that whilst there is a gender discrepancy in
participation level, once engaged, females were equally committed to weekly training. The ‘style’ of the
instructor is of paramount importance for enhancing student motivation to participate. High volume
practitioners would appear to be fully immersed in the holistic appreciation of the martial art through
increased value placed on its underpinning philosophy
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