993 research outputs found
Measuring workplace learning results : using the Kirkpatrick Model
Training at the workplace is commonly accepted as the ready-made solution to organizational
problems. It is however, only a solution for problems that can be resolved by training. In this
paper, we would consider the ROI of training by taking into account how to design and
structure a method of identifying and evidencing the benefits via quality assessment
measures which takes into account the drivers (internal and external), and the requirements
(operations and customer).
The processes basically compare the levels of knowledge, skills, experience and attitude
available at the beginning of the programme with those available at the end of such
programmes. Types of evidence and the methods used to extract them would also be
considered. A case study on a group of sales personnel from a multinational company shall
be presented. (Author's abstract
Integrating knowledge at workplace via continuous learning
In the current world scenario of knowledge based economy, competitiveness had never been
greater. Organisations and entities need to enhance their human capital capabilities to a level
comprising of internal norms and external up-to-date practices. The major results of industryacademia
collaboration are still blurred by risk and regulatory fog.
This paper draws its contents from the experience and practices of workplace programme
initiatives leading to planning, designing and delivery of such programmes. It shares the
challenges and strategies for effective initiatives leading to excellent ROI in human capital for
recipient organisation and providers.
It is aimed to examine what practices/pedagogies/structures enhance the integration of work
and learning and what discourage it? Change of policies incorporating assumptions about the
integration of work and learning (such as lifelong learning, recognition of prior learning, etc)
has made learning at work more conducive with the impact of globalization.
The new kinds of partnerships and networks that are increasingly prominent in work
arrangements and structures would present the various challenges/opportunities for
integrating work and learning
Analysis of Mood States among Cricket Players during Competitive Season
The aim of the study was to analyze the mood states of high- and low-level cricket players during competitive season. 260 cricket players those participated in the Virudhunagar district cricket league during the year 2012-13 were selected as subjects to achieve the study objectives. The subjects confined to this study were classified into two groups as high- and low-level cricket players on the basis of their competitive standards. The high-level group comprising 130 players selected from A Division teams and low-level group constitutes 130 players selected from B Division teams. The age of the subjects was ranged between 15 and 34 years. Profile of Mood States Questionnaire developed by McNair et al., (1971) was used in the present study. This questionnaire constitutes 65-items which measures five negative scales such as fatigue, depression, tension, anger, confusion and positive scale vigour. The two-way factorial ANOVA with repeated measures on the last factor showed that tension, depression, anger and confusion showed no difference during cricket season between high- and low-level cricket players. However, vigor and fatigue interaction is significant and Scheffé S post hoc test was applied. Vigor and fatigue showed significant difference between the groups at start and mid-season. However, vigor showed significant difference between the groups at end and within low level cricket players. It is concluded that positive factor vigor showed high in high level cricket players than low level cricket players. The cricket season showed fatigue in the middle of the season
Computing the multifractal spectrum from time series: An algorithmic approach
We show that the existing methods for computing the f(\alpha) spectrum from a
time series can be improved by using a new algorithmic scheme. The scheme
relies on the basic idea that the smooth convex profile of a typical f(\alpha)
spectrum can be fitted with an analytic function involving a set of four
independent parameters. While the standard existing schemes [16, 18] generally
compute only an incomplete f(\alpha) spectrum (usually the top portion), we
show that this can be overcome by an algorithmic approach which is automated to
compute the Dq and f(\alpha) spectrum from a time series for any embedding
dimension. The scheme is first tested with the logistic attractor with known
f(\alpha) curve and subsequently applied to higher dimensional cases. We also
show that the scheme can be effectively adapted for analysing practcal time
series involving noise, with examples from two widely different real world
systems. Moreover, some preliminary results indicating that the set of four
independant parameters may be used as diagnostic measures is also included.Comment: 10 pages, 16 figures, submitted to CHAO
Validation of multi-channel scanning microwave radiometer on-board Oceansat-I
Sea surface temperature (SST), sea surface wind speed (WS) and columnar water vapour (WV) derived from Multi-frequency Scanning Microwave Radiometer (MSMR) sensor on-board IRS-P4 (Oceansat-I) were validated against the in situ measurements from ship, moored buoy (MB), drifting buoy (DB) and autonomous weather station (AWS). About 1400 satellite in situ match-ups were used for the validation of SST and WS, while only 60 match-ups were available for the validation of WV. Therefore specific humidity, Q a was used as a proxy for validating WV. The drifting buoy SSTs showed good correlation with the satellite values (r = 0.84). The correlation of MB SSTs was better during night when the WS varied between 0 and 10 m/s. During the day, correlation peaked for higher wind speeds (> 10 m/s). MB (r > 0.80) was relatively better than AWS (r � 0.70) and ship (r < 0.50) for validating satellite-derived WS. Daytime winds exhibited better correlation with satellite values when measured from ocean platforms (MB and ship), but the winds measured from land-based platforms (AWS) were closer to satellite values during night-time. Q a values consistently showed higher correlation with satellite values during night-time. The low root mean square deviation (RMSD) of DB SST (1.17°C) and MB WS (1.52 m s -1) is within the achievable accuracy of the microwave sensor when validated with data collected over the tropical Indian Ocean. The RMSD of Q a (1.81 g kg -1), however, falls much beyond the attainable accuracy of the microwave sensor
Trenchcoat: Human-Computable Hashing Algorithms for Password Generation
The average user has between 90-130 online accounts, and around passwords are in use this year. Most people are terrible at
remembering "random" passwords, so they reuse or create similar passwords using
a combination of predictable words, numbers, and symbols. Previous
password-generation or management protocols have imposed so large a cognitive
load that users have abandoned them in favor of insecure yet simpler methods
(e.g., writing them down or reusing minor variants).
We describe a range of candidate human-computable "hash" functions suitable
for use as password generators - as long as the human (with minimal education
assumptions) keeps a single, easily-memorizable "master" secret - and rate them
by various metrics, including effective security.
These functions hash master-secrets with user accounts to produce sub-secrets
that can be used as passwords; s, takes a website
, produces a password , parameterized by master secret , which may or
may not be a string.
We exploit the unique configuration of each user's associative and
implicit memory (detailed in section 2) to ensure that sources of randomness
unique to each user are present in each master-secret . An adversary
cannot compute or verify efficiently since is unique to each
individual; in that sense, our hash function is similar to a physically
unclonable function. For the algorithms we propose, the user need only complete
primitive operations such as addition, spatial navigation or searching.
Critically, most of our methods are also accessible to neurodiverse, or
cognitively or physically differently-abled persons.
We present results from a survey (n=134 individuals) investigating real-world
usage of these methods and how people currently come up with their passwords,
we also survey 400 websites to collate current password advice
A Multi-Server Retrial Queueing Inventory System With Asynchronous Multiple Vacations
This article deals with asynchronous server vacation and customer retrial
facility in a multi-server queueing-inventory system. The Poisson process
governs the arrival of a customer. The system is comprised of c identical
servers, a finite-size waiting area, and a storage area containing S items. The
service time is distributed exponentially. If each server finds that there are
an insufficient number of customers and items in the system after the busy
period, they start a vacation. Once the servers vacation is over and it
recognizes there is no chance of getting busy, it goes into an idle state if
the number of customers or items is not sufficient, otherwise, it will take
another vacation. Furthermore, each server's vacation period occurs
independently of the other servers. The system accepts a (s, Q) control policy
for inventory replenishment. For the steady state analysis, the Marcel F Neuts
and B Madhu Rao matrix geometric approximation approach is used owing to the
structure of an infinitesimal generator matrix. The necessary stability
condition and R matrix are to be computed and presented. After calculating the
sufficient system performance measures, an expected total cost of the system is
to be constructed and numerically incorporated with the parameters.
Additionally, numerical analyses will be conducted to examine the waiting time
of customers in the queue and in orbit, as well as the expected rate of
customer loss.Comment: 43 pages, 12 figures, 5 table
A MARKOVIAN TWO COMMODITY QUEUEING–INVENTORY SYSTEM WITH COMPLIMENT ITEM AND CLASSICAL RETRIAL FACILITY
This paper explores the two-commodity (TC) inventory system in which commodities are classified as major and complementary items. The system allows a customer who has purchased a free product to conduct Bernoulli trials at will. Under the Bernoulli schedule, any entering customer will quickly enter an orbit of infinite capability during the stock-out time of the major item. The arrival of a retrial customer in the system follows a classical retrial policy. These two products' re-ordering process occurs under the and instantaneous ordering policies for the major and complimentary items, respectively. A comprehensive analysis of the retrial queue, including the system's stability and the steady-state distribution of the retrial queue with the stock levels of two commodities, is carried out. The various system operations are measured under the stability condition. Finally, numerical evidence has shown the benefits of the proposed model under different random situations
The chaotic behavior of the black hole system GRS 1915+105
A modified non-linear time series analysis technique, which computes the
correlation dimension , is used to analyze the X-ray light curves of the
black hole system GRS 1915+105 in all twelve temporal classes. For four of
these temporal classes saturates to which indicates that
the underlying dynamical mechanism is a low dimensional chaotic system. Of the
other eight classes, three show stochastic behavior while five show deviation
from randomness. The light curves for four classes which depict chaotic
behavior have the smallest ratio of the expected Poisson noise to the
variability () while those for the three classes which depict
stochastic behavior is the highest (). This suggests that the temporal
behavior of the black hole system is governed by a low dimensional chaotic
system, whose nature is detectable only when the Poisson fluctuations are much
smaller than the variability.Comment: Accepted for publication in Astrophysical Journa
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