• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 34741
  • 34427
  • 28811
  • 17817
  • 3592
  • 3010
  • 2689
  • 2309
  • 938
  • 641
  • 586
  • 555
  • 529
  • 465
  • Tagged with
  • 5294
  • 4925
  • 4725
  • 4534
  • 3943
  • 3846
  • 3606
  • 3568
  • 3433
  • 3277
  • 3196
  • 3110
  • 2817
  • 2785
  • 2673
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the 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.

The Effect of Random Number Generators on Applications

Landauer, Edwin G. 09 1900 (has links) (PDF)
University of Central Florida College of Engineering Thesis / Several pseudorandom number generators are described and comapred on the basis of cost of generation and length of period of the sequences that are produced. The major statistical tests, which are used to obtain a measure of randomness for the different generators are discussed and compared. Four pseudorandom number generators are programmed in GPSS and are used to generate interarrival and service times for an M/M/1 queuing system. The results of each of the trials are compared to the theoretical resutls which can be obtained from queuing theory. / M.S. / Masters / Engineering / 33 p. / iv, 33 leaves, bound ; 28 cm.

Testing the Radio Shack Random Number Generator to Produce Uniform and Non-Uniform Random Numbers

Menendez, Enrique 11 1900 (has links) (PDF)
University of Central Florida College of Engineering Thesis / Random numbers are a basic part in a Simulation Model, and they are also used in random sampling. These techniques are employed by quality engineers in the successful execution of their jobs. The every-day use of random numbers, however, often leads to a sense of complacency int he mind of engineers toward the exacting requirements that should be satisfied by the random number process to generate a genuine random number. Microcomputers have become a common and powerful tool that helps managers and engineers in their simulation experiments by providing sequences of random numbers. This research presents a sequence of eight tests to test the Radio Shack microcomputer system random number generator for uniformity and randomness; then, this Radio Shack random number generator is used to generate uniform and non-uniform deviates and a non-parametric test is performed to test these deviates for randomness. Two computer programs written in the BASIC language are used to test for randomness. The first one to test the Radio Shack random number generator and the second one to test the uniform and non-uniform deviates. / M.S. / Masters / Engineering / 147 p. / vii, 147 leaves, bound : ill. ; 28 cm.

An Optimal Algorithm for Detecting Pattern Sensitive Faults in Semiconductor Random Access Memories

Subrin, Richard I. 12 1900 (has links) (PDF)
University of Central Florida College of Engineering Thesis / Random-accessmemory (RAM) testing to detect unrestricted pattern-sensitive faults (PSFs) is impractical due to the size of the memory checking dequence required. A formal model for restricted PSFs in RAMs called adjacent-pattern interference faults (APIFs) is presented. A test algorithm capable of detecting APIFs in RAMs requiring a minimum number of memory operations is then developed. / M.S. / Masters / Engineering / Engineering / 85 p. / vi, 85 leaves, bound : ill. ; 28 cm.

The Effects of Blocked and Random Word Lists on the Production of False Memories

Williams, Melonie 04 1900 (has links)
This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information. / Bachelors / Sciences / Psychology

Symbolic messages and the constitution : random drug-testing of public school students, Vernonia V. Acton (1995) and the fourth amendment

Beaverson, Amber 02 1900 (has links)
This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information. / Bachelors / Arts and Sciences / Political Science

Limit theorems for limit order books

Paulsen, Michael Christoph 21 August 2014 (has links)
Im ersten Teil der Dissertation wird ein diskretes stochastisches zustandsabhängiges Modell eines zweiseitigen Limit Orderbuchs als bestehend aus den Zustandsgrößen bester Bidpreis (Geldkurs), bester Askpreis (Briefkurs) und vorhandener Kauf- bzw. Verkaufsdichte definiert. Für eine einfache Skalierung mit zwei Zeitskalen wird ein Grenzwertsatz bewiesen. Die Veränderungen der besten Bid- und Askpreise werden im Sinne des Gesetzes der großen Zahlen skaliert und dies entspricht der langsameren Zeitskala. Das Platzieren bzw. Stornieren der Limitorder findet auf der schnelleren Zeitskala statt. Der Grenzwertsatz besagt, dass die fundamentalen Zustandsgrößen, gegeben Regularitätsbedingungen der einkommenden Order, fast sicher zu einem stetigen Limesmodell konvergieren. Im Limesmodell sind der beste Bidpreis und der beste Askpreis die eindeutigen Lösungen von zwei gekoppelten gewöhnlichen DGLen. Die Kauf- und Verkaufsdichten sind jeweils als eindeutige Lösungen von linearen hyperbolischen PDGLen, die anhand der Erwartungswerte der einkommenden Orderparameter festgelegt sind, gegeben. Die Lösungen sind in geschlossener Form erhältlich. Im zweiten Teil wird ein funktionaler zentraler Grenzwertsatz d.h. ein Invarianzprinzip für ein vereinfachtes Modell eines Limitorderbuches bewiesen. Unter einer natürlichen Skalierung konvergiert der zweidimensionale Preisprozess (Bid- und Askpreis) in Verteilung zu einer Semimartingal reflektierten Brownschen Bewegung in der zugelassenen Preismenge. Gleichzeitig konvergieren die Kauf- und Verkaufsdichten im schwachen Sinn zum Betrag einer zweiparametrischen Brownschen Bewegung. Es wird weiterhin anhand eines Beispiels gezeigt, wie man für das Modell im ersten Teil eine stochastiche PDGL, unter einer starken Stationaritätsannahme für die Orderplatzierungen und -stornierungen, herleiten kann. Im dritten Teil wird ein Mittelungs- bzw. ein Invarianzprinzip für diskrete Banach- bzw. Hilbertraumwertige stochastische Prozesse bewiesen. / In the first part of the thesis, we define a random state-dependent discrete model of a two-sided limit order book in terms of its key quantities best bid [ask] price and the standing buy [sell] volume density. For a simple scaling that introduces a slow time scaling, that is equivalent to the classical law of large numbers, for the bid/ask prices and a faster time scale for the limit volume placements/cancelations, that keeps the expected volume rate over the considered price interval invariant, we prove a limit theorem. The limit theorem states that, given regularity conditions on the random order flow, the key quantities converge in the sense of a strong law of large numbers to a tractable continuous limiting model. The limiting model is such that the best bid and ask price dynamics can be described in terms of two coupled ODE:s, while the dynamics of the relative buy and sell volume density functions are given as the unique solutions of two linear first-order hyperbolic PDE:s with variable coefficients, specified by the expectation of the order flow parameters. In the second part, we prove a functional central limit theorem i.e. an invariance principle for an order book model with block shaped volume densities close to the spread. The weak limit of the two-dimensional price process (best bid and ask price) is given by a semi-martingale reflecting Brownian motion in the set of admissible prices. Simultaneously, the relative buy and sell volume densities close to the spread converge weakly to the modulus of a two-parameter Brownian motion. We also demonstrate an example how to easily derive an SPDE for the relative volume densities in a simple case, when a strong stationarity assumption is made on the limit order placements and cancelations for the model suggested in the first part. In the third and final part of the thesis, we prove an averaging and an invariance principle for discrete processes taking values in Banach and Hilbert spaces, respectively.

New Books

20 May 2015 (has links)
No description available.

A binomial random variate generator /

Naderisamani, Amir. January 1980 (has links)
No description available.

Analysis of Scheduling for Low Cost Part Task Trainers

Fellows, William 06 1900 (has links)
University of Central Florida College of Engineering Thesis / This study develops a methodology for the analysis of Part Task Trainer (PTT) refresh scheduling used in conjunction with large simulators. A human performance model is defined through the development of descriptive equations and system random variables. PTT scheduling calculations are performed by employing a computer program simulation. The computer algorithm generates a set of random vectors to represent the learning characteristics of a sample group of individual trainees. The relationships between simulator scheduling time, PTT frequency training, and model variables are demonstrated to be user interactive. This will allow the PTT refresh scheduling program to be used as an analytical tool for the investigator and training planner. A computer summary of the resulting simulator retraining times with PTT refresh is provided to the user. / M.S. / Masters / Engineering / Engineering / 82 p. / vi, 82 leaves, bound : ill.; 28 cm.

Librería Virtual “Book Stores”

Aliaga Mendoza, Wendy Sheyla, Navarrete Chirito, Mario Eduardo, Ormeño Bravo, Gisella Susana January 2013 (has links)
El presente Plan de negocio trata de una librería virtual, cuyo fin es poner al alcance de todos los usuarios interesados (colegios, universidades, institutos, así como personas interesadas) libros y publicaciones electrónicas de carácter técnico. Dichas publicaciones y libros electrónicos serán proveídos por editoriales nacionales e internacionales, a través de convenios, los que serán incorporados en una plataforma web para bridar su accesibilidad a los usuarios. La plataforma web en cuestión permitirá a los diferentes usuarios el acceso a través de un login y password, y contará con un motor de búsqueda que permitirá efectuar filtros de búsqueda por diferentes criterios (simples o compuestos), tales como: por autor, editorial, titulo, tema y similares. El esquema de negocio que planteamos consiste en que siendo una persona individual o cliente institucional (colegio, universidad o instituto), a través de un fee mensual o anual, según sea el caso, tendrá acceso, a través de dos formas, a la librería virtual, y estas consisten en: Acceso a publicaciones electrónicas por un tiempo limitado (mensual, trimestral o semestral), luego del cual el acceso es bloqueado. Acceso a adquisición de publicaciones electrónicas por un precio establecido. Entendemos que actualmente, el acceso a publicaciones técnicas se da a través de las diversas instituciones (colegios, universidades, institutos) pero principalmente a los miembros de dichas instituciones, y el acceso es limitado o restringido a terceros. Por otro lado, la renovación y/o actualización de los diferentes títulos de publicaciones, en las entidades mencionadas, no se da ni en tiempos ni en la calidad que se espera en todos los casos. Asimismo, no todas las entidades están en capacidad económica y logística de implementar una biblioteca variada y actualizada debidamente en el más amplio sentido del término. El país ha experimentado un crecimiento económico continuo, y consideramos que una contribución a dicho desarrollo es hacer accesible al mayor número de usuarios una variada oferta de publicaciones y libros en formato electrónico. En ese sentido, el enfoque del negocio se orienta a prestar el servicio, inicialmente a los sectores socio-económicos A, B y C, los que cuentan con la mayor cobertura a internet, que es el medio por el cual brindaremos el servicio. También consideramos que existen dos ámbitos en los cuales nuestro servicio será demandado, el nivel escolar (primaria y secundaria), y el nivel universitario (Pre-Grado y Post-Grado), y se ofrecerán productos para cada uno de dichos ámbitos. A nivel de usuarios, se plantea establecer convenios con los colegios, universidades e institutos, a fin de, en forma corporativa, brindar acceso a publicaciones electrónicas en tiempo real y debidamente actualizadas, en las diferentes materias que dichas instituciones brindan. Consideramos que este plan de negocio ofrece beneficios múltiples, ya que ofrece acceso a una plataforma web, única en su género en el país, con una variedad de material técnico que ninguna entidad educativa ofrece actualmente, elimina restricciones de los estudiantes al acceso a material técnico diverso y no circunscrito a su propia entidad, sino que introduce a dichos estudiantes al uso de herramientas tecnológicas de vanguardia en el ámbito educativo; así como contribuye indirectamente a la conciencia ecología, al ser publicaciones electrónicas, no afectando a la naturaleza.

Page generated in 0.1721 seconds