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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1071 to 1077 of 1077 (0.12 seconds)Spelling suggestions: "subject:"bperformance evaluation"" "subject:"deperformance evaluation""
| 1071 |
Enhancing Creative, Learning and Collaborative Experiences through Augmented Reality-compatible Internet-of-Things DevicesPashin Farsak Raja (15348238) 29 April 2023 (has links)
<p>The "Maker Movement" is a cultural phenomena rooted in DIY culture, which stresses making devices and creations on your own rather than purchasing it ready-made. At the core of the Maker Movement, is the "Maker Mindset"; a collection of attitudes, beliefs and behaviors that emphasize the importance of creativity, experimentation and innovation in the learning process. Since the Maker Mindset embodies constructionist principles at its core that push makers to experiment and problem-solve by collaborating with fellow makers through hands-on activities, it can be said that these activities comprise of Creative, Learning and Collaborative experiences. While Internet-of-Things devices have long been used to enhance these activities, research pertaining to using Augmented Reality in tandem with IoT for the purpose of enhancing experiences core to the Maker Mindset is relatively unexplored. Three different systems were developed with the goal of addressing this -- MicrokARts, ShARed IoT and MechARspace. Each system focuses on enhancing one of the three core experiences through AR-compatible IoT devices, whilst ensuring that they do not require prerequisite knowledge in order to author AR experiences. These systems were evaluated through user studies and testing over a variety of age-groups, with each system successfully enhancing one core experience each through the use of AR-IoT interactions.</p>
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| 1072 |
Ouditproses van 'n kerklike welsynsorganisasie : n beskrywing van maatskaplike werkers se ervaringPretorius, Manda 06 1900 (has links)
Evaluation determines the impact of social services as well as job performance and
assures communities that social workers render effective services. Post audits are done
as part of performance management at the Christian Social Councils in the Highveld
Synodal Region.
The purpose of this research is to look at the experiences of social workers that had a
post audit to determine whether adjustments to improve the audit system are needed.
A qualitative approach with an exploratory, descriptive and contextual research design
was followed. Participants were identified according to the purposive sampling
method. Data was collected during semi-structured interviews. The data was analysed
and verified according to the models of Tesch (in Creswell, 2003) and Guba (in
Krefting, 1991), respectively, and processed in the research report. / Social Work / M. A. (Social Science)
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| 1073 |
The Biowall Field Test Analysis and OptimizationJacob J. Torres (5930906) 14 May 2019 (has links)
<div>
<p>A residential botanical
air filtration system (Biowall) to investigate the potential for using
phytoremediation to remove contaminants from indoor air was developed. A full scale and functioning prototype was
installed in a residence located in West Lafayette, Indiana. The prototype was integrated into the central
Heating, Ventilating, and Air Conditioning (HVAC) system of the home. This
research evaluated the Biowall operation to further its potential as an energy
efficient and sustainable residential air filtration system.<br></p>
<p> </p>
<p>The main research effort
began after the Biowall was installed in the residence. A field evaluation, which
involved a series of measurements and data analysis, was conducted to identify
treatments to improve Biowall performance. The study was conducted for
approximately one year (Spring 2017-Spring 2018). Based on the initial data
set, prioritization of systems in need of improvement was identified and
changes were imposed. Following a post-treatment
testing period, a comparison between the initial and final performances was completed
with conclusions based on this comparison. </p>
<p> </p>
<p>The engineering and analysis
reported in this document focus on the air flow path through the Biowall, plant
growth, and the irrigation system. The conclusions provide an extensive
evaluation of the design, operation, and function of the Biowall subsystems
under review.</p>
</div>
<br>
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| 1074 |
Ouditproses van 'n kerklike welsynsorganisasie : n beskrywing van maatskaplike werkers se ervaringPretorius, Manda 06 1900 (has links)
Evaluation determines the impact of social services as well as job performance and
assures communities that social workers render effective services. Post audits are done
as part of performance management at the Christian Social Councils in the Highveld
Synodal Region.
The purpose of this research is to look at the experiences of social workers that had a
post audit to determine whether adjustments to improve the audit system are needed.
A qualitative approach with an exploratory, descriptive and contextual research design
was followed. Participants were identified according to the purposive sampling
method. Data was collected during semi-structured interviews. The data was analysed
and verified according to the models of Tesch (in Creswell, 2003) and Guba (in
Krefting, 1991), respectively, and processed in the research report. / Social Work / M. A. (Social Science)
|
| 1075 |
[en] DEVELOPMENT OF A SIMULATION TOOL FOR CELLULAR NETWORK PLANNING AND PERFORMANCE EVALUATION BASED ON THE SIGNALING LOAD / [pt] DESENVOLVIMENTO DE UMA FERRAMENTA DESIMULAÇÃO PARA PLANEJAMENTO E ANÁLISE DO DESEMPENHO DE REDES CELULARES A PARTIR DA CARGA DE SINALIZAÇÃO GERADARODRIGO CESAR D ALBRIEUX DE CARVALHO 14 June 2002 (has links)
[pt] Com o advento dos sistemas celulares de segunda e terceira
gerações é esperado que as operadoras se vejam obrigadas a
enfrentar um aumento dramático na carga de sinalização
que trafega sobre a parte fixa da rede móvel. Apesar disso,
são raros os provedores de serviços de comunicações móveis
que possuem atualmente a capacidade de prever com
relativa precisão o montante desse aumento. Este trabalho
apresenta as etapas do desenvolvimento de uma ferramenta de
simulação para análise de desempenho de redes de
comunicação móvel celular com base na carga de sinalização
gerada pelos procedimentos que a mantém em operação. A
plataforma de simulação inclui um modelo de mobilidade e
teletráfego para caracterizar o processo de geração dos
cenários típicos de uma rede móvel celular e um modelo de
retardos para representação da rede de sinalização. Ao
final do estudo,são apresentados exemplos de aplicação da
ferramenta na obtenção de resultados sobre gerência de
status, gerência de localização, avaliação da carga de
sinalização,dimensionamento da rede de sinalização e
análise de desempenho para diferentes configurações de rede. / [en] The advent of second and third generation cellular systems
make cellular operators face dramatic increase in the
signaling traffic over the fixed part of the mobile
network. In spite of this, rare mobile communications
service providers are able to forecast the above mention
increase and quantify it with reasonable precision. This
work describes the development process of a simulation tool
for performance analysis of cellular mobile network based
on the signaling load generated by the procedures that
keeps it working. The simulation platform inlcudes a
mobility and teletraffic model to describe the generation
process of cellular mobile networks tipical scenarios and a
delay model to represent the signaling network. At the end,
examples showing the application of the simulation tool to
obtain results about status and location management,
signaling load evaluation, signaling network planning and
performance analysis for different network configurations
are presented.
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| 1076 |
Un modèle de prise de décision basé sur la performace des procesus métiers collaboratifs / Dynamic decision model based on the performance of collaborative business processesHachicha, Maroua 03 April 2017 (has links)
Cette thèse se focalise sur l’amélioration de l’évaluation de performance des processus métiers collaboratifs. Il s’agit de poursuivre l’évolution de la collaboration entre l’entreprise et ses partenaires. Trois niveaux d’abstraction ont été d’abord identifiés : Métier, fonctionnel et applicatif. Ensuite, nous avons développé une approche descendante allant du niveau métier au niveau applicatif. Dans le niveau métier, des différents d’indicateurs clés de performance ont été proposés à travers la méthodeECOGRAI. Dans le niveau applicatif, nous avons proposé un référentiel d’analyse contenant des indicateurs techniques fonctionnels tels que la durée, l’input, l’output, et non-fonctionnels notamment la maturité, le risque, l’interopérabilité à partir des traces d’exécution. Nous avons proposé ainsi un modèle ontologique en vue de capitaliser et enrichir la sémantique de la performance de ces processus. Nous avons proposé un modèle ascendant pour l’agrégation des indicateurs technique au niveaumétier. Le principal objectif de cette agrégation est la corrélation entre le comportement de l’application métier agrégé à partir de l’exécution et l’évolution des indicateurs métiers. Un autre modèle de gestion des événements métiers a été également proposé pour consolider le processus d’apprentissage de notre approche. Par ailleurs, pour assurer la convergence de la performance, nous avons combiné entre la gestion des traces et la gestion des évènements métiers. Cette combinaison permet d’accompagner l’évolution des processus métiers collaboratifs pendant leur exécution. L’accompagnement évoqué avant favorise l’obtention d’un diagnostic sur la performance pour servir à la prise de décision. Cette dernière est liée étroitement à la détection des alertes et particulièrement à l’anticipation des déviations de la performance le plus rapidement possible. Pour valider lacontribution scientifique de cette thèse, une étude de cas a été réalisée sur un processus de création de devis dans le cadre du projet européen FITMAN. / This thesis focuses on improving the performance evaluation of collaborative business processes. It is about pursuing the evolution of the collaboration between the company and its partners. In the beginning, three abstraction levels were identified: Business, functional and application. Then, we developed a top-down approach from the business level to the application level. In the business level, different key performance indicators have been proposed through the ECOGRAI method. In the application level, we proposed an analytical repository containing functional technical indicators such as duration, input, output, and non-functional, including maturity, risk, and interoperability based on execution traces. We have thus proposed an ontological model in order to capitalize and enrich the semantics of the performance of these processes. We proposed a bottom-up model for the aggregation of technical indicators at the business level. The main objective of this aggregation is the correlation between the behavior of the aggregated business application from the execution and the evolution of the business indicators. Another business event management model was also proposed to consolidate the learning process of our approach. Moreover, to ensure the convergence of performance, we have combined traces management and business event management. This combination allows to accompany the evolution of the collaborative business processes during their execution. The aforementionedaccompaniment favors the obtaining of a diagnosis on performance to be used for decision-making. The latter is closely linked to the detection of alerts and particularly to the anticipation of deviations in performance as quickly as possible. To validate the scientific contribution of this thesis, a case study was carried out on a process of creation of quote within the framework of the European project FITMAN.
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| 1077 |
Evaluation of Target Tracking Using Multiple Sensors and Non-Causal AlgorithmsVestin, Albin, Strandberg, Gustav January 2019 (has links)
Today, the main research field for the automotive industry is to find solutions for active safety. In order to perceive the surrounding environment, tracking nearby traffic objects plays an important role. Validation of the tracking performance is often done in staged traffic scenarios, where additional sensors, mounted on the vehicles, are used to obtain their true positions and velocities. The difficulty of evaluating the tracking performance complicates its development. An alternative approach studied in this thesis, is to record sequences and use non-causal algorithms, such as smoothing, instead of filtering to estimate the true target states. With this method, validation data for online, causal, target tracking algorithms can be obtained for all traffic scenarios without the need of extra sensors. We investigate how non-causal algorithms affects the target tracking performance using multiple sensors and dynamic models of different complexity. This is done to evaluate real-time methods against estimates obtained from non-causal filtering. Two different measurement units, a monocular camera and a LIDAR sensor, and two dynamic models are evaluated and compared using both causal and non-causal methods. The system is tested in two single object scenarios where ground truth is available and in three multi object scenarios without ground truth. Results from the two single object scenarios shows that tracking using only a monocular camera performs poorly since it is unable to measure the distance to objects. Here, a complementary LIDAR sensor improves the tracking performance significantly. The dynamic models are shown to have a small impact on the tracking performance, while the non-causal application gives a distinct improvement when tracking objects at large distances. Since the sequence can be reversed, the non-causal estimates are propagated from more certain states when the target is closer to the ego vehicle. For multiple object tracking, we find that correct associations between measurements and tracks are crucial for improving the tracking performance with non-causal algorithms.
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