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Unversidad Nacional de La Plata (196)

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Aproximadamente 196 registro(s) hasta el momento: (journal)

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Recurso libre

Wavelet representation of functions defined on tetrahedrical grids
Castro, Silvia - Castro, Liliana - Boscardín, Liliana - De Giusti, Armando

Formato:	Articulo, Articulo
Enlaces:	In this paper, a method for representing scalar functions on volumes is presented. The method is based on wavelets and it can be used for representing volumetric data (geometric or scalar) defifined on non structured grids. The basic contribution is…
Fecha:	2004-02-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Custom architectures for fuzzy and neural networks controllers
Acosta, Nelson - Tosini, Marcelo Alejandro

Formato:	Articulo, Articulo
Enlaces:	Standard hardware, dedicated microcontroller or application specific circuits can implement fuzzy logic or neural network controllers. This paper presents efficient architecture approaches to develop controllers using specific circuits. A generator uses several tools that allow translating the initial problem specification…
Fecha:	2004-02-06
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Generation of flexible 3D objects
González, Adela

Formato:	Articulo, Articulo
Enlaces:	The objective of this research is to develop a tool for the generation of 3D objects modeled with flexible materials, with visco-elastic or inelastic characteristics, similar to the plasticine. It is desirable to prioritize the simplicity of the interface with…
Fecha:	2004-02-06
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Experiments for analysis of video transmission via ATM
Pissioli, Mauricio - Santos Moreira, Edson dos - Goularte, Rudinei

Formato:	Articulo, Articulo
Enlaces:	A large quantity of data of different types and priorities pass through on high-speed networks. A relevant part of these data, like continuous media (audio, video, and so), need a control of its Quality of Service (QoS). This paper describes…
Fecha:	2004-02-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

DER: Dynamic Evidential Reasoning applied to hyperspectral images classification
Sanz, Cecilia Verónica - Jordan Ramiro

Formato:	Articulo, Articulo
Enlaces:	This paper describes a new classification method (DER) based on evidential reasoning to which a series of modifications are added [1]. DER allows including new evidence for the classification process and defines a different decision rule. The evidential reasoning algorithm…
Fecha:	2004-02-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

A parallel implementation of Q-learning based on communication with cache
Printista, Alicia Marcela - Errecalde, Marcelo Luis - Montoya, Cecilia Inés

Formato:	Articulo, Articulo
Enlaces:	Q-Learning is a Reinforcement Learning method for solving sequential decision problems, where the utility of actions depends on a sequence of decisions and there exists uncertainty about the dynamics of the environment the agent is situated on. This general framework…
Fecha:	2004-02-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Parallelizing tracking algorithms
Roldán, María Carina - Naiouf, Marcelo - De Giusti, Armando

Formato:	Articulo, Articulo
Enlaces:	In several applications, the trajectory of an entity, a feature or an object has to be tracked over a sequence of image frames. When the processing is to be performed in real time, there are important constraints leading to the…
Fecha:	2004-02-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Bisimulation for component-based development
Estevez, Elsa Clara - Fillottrani, Pablo Rubén

Formato:	Articulo, Articulo
Enlaces:	Guaranteeing that assembled components will behave as required is one of the main aspects in working with Component-Based Development. In this paper we present a formal approach for tackling this problem by applying the concept of bisimulation, originally presented in…
Fecha:	2004-02-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Argument-based negotiation among BDI agents
Rueda, Sonia Vivian - García, Alejandro Javier - Simari, Guillermo Ricardo

Formato:	Articulo, Articulo
Enlaces:	Negotiation is a basic mechanism for interaction that allows the members in a Multiagent System to coordinate their actions and to reach a favorable agreement. When agents are collaborative, the negotiation process progresses through a dialogue in which proposals and…
Fecha:	2004-02-06
Recurso:	Unversidad Nacional de La Plata

Recurso libre

10.

Using business process reengineering to obtain a RAISE specification
Riesco, Daniel Eduardo - Uzal, Roberto - Montejano, Germán Antonio

Formato:	Articulo, Articulo
Enlaces:	We have proposed a technique which can be employed within the methodology known as business process reengineering. This technique has been applied in a government project, which included an Information System and Geographical Information System, developed with financial support from…
Fecha:	2004-02-07
Recurso:	Unversidad Nacional de La Plata

Recurso libre

11.

Algebraic specifications and refinement for component-based development using RAISE
Estevez, Elsa Clara - Fillottrani, Pablo Rubén

Formato:	Articulo, Articulo
Enlaces:	There are two main activities in Component-Based Development: component development, where we build libraries for general use, and component integration, where we assemble an application from existing components. In this work, we analyze how to apply algebraic specifications with refinement…
Fecha:	2004-02-07
Recurso:	Unversidad Nacional de La Plata

Recurso libre

12.

Geometric-textured bitree: transmission of a multiresolution terrain the Internet
Abásolo Guerrero, María José - Perales Lopez, Francisco José - De Giusti, Armando Eduardo

Formato:	Articulo, Articulo
Enlaces:	Transmission of large terrain databases across the Internet is still worrying. A large terrain database requires a big number of polygons and textures, and that represents a problem with current bandwidth and resource limitations. Multiresolution models permit progressive transmission, that…
Fecha:	2004-02-07
Recurso:	Unversidad Nacional de La Plata

Recurso libre

13.

Component-based tool for verifying applications using object-oriented patterns
Reynoso, Luis A. - Buccella, Agustina - Flores, Andrés P. - Aranda, Gabriela N.

Formato:	Articulo, Articulo
Enlaces:	Applying design patterns is considered a helpful technique for designing software systems. Patterns description, however, results not sufficiently precise providing a weak understanding and making it difficult to be certain when a pattern is being used correctly. We have formally…
Fecha:	2004-02-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

14.

Improved automatic discovery of subgoals for options in hierarchical
Kretchmar, R. Matthew - Feil, Todd - Bansal, Rohit

Formato:	Articulo, Articulo
Enlaces:	Options have been shown to be a key step in extending reinforcement learning beyond low-level reactionary systems to higher-level, planning systems. Most of the options research involves hand-crafted options; there has been only very limited work in the automated discovery…
Fecha:	2004-05-17
Recurso:	Unversidad Nacional de La Plata

Recurso libre

15.

Shorter table ATA evaluation of elementary functions in single precision
Bria, Oscar N.

Formato:	Articulo, Articulo
Enlaces:	In this paper a slightly modification is proposed to the original Wong and Gotos ATA method for the computation of elementary functions in IEEE 754 single precision. The identification of a trade-off leads to the proposition of a different chunk…
Fecha:	2004-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

16.

ADESSO
Machado, Rubens C. - Saude, Andre V. - Lotufo, Roberto

Formato:	Articulo, Articulo
Enlaces:	This paper presents the Adesso, a computational environment for the development of scientific software. The Adesso environment leverages the reusable software component programming model to support the development and integration of components to several scientific programming platforms. The Adesso system…
Fecha:	2004-02-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

Design composition
Sametinger, Johannes R. - Keller, Rudolf K.

Formato:	Articulo, Articulo
Enlaces:	Object-oriented software development has proven effective for systems development, but the creation of reusable and changeable software architectures is still a challenging task. Design patterns capture the expertise for reusable design solutions, but there is no methodical approach to providing…
Fecha:	2004-02-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

Application of symmetric orthogonal multiwavelets and prefilter technique for image compression
Chen, Jiazhong - Zhou, Jingli - Yu, Shengsheng - Xiao, Qian - Xu, Jun

Formato:	Articulo, Articulo
Enlaces:	Multiwavelets are new addition to the body of wavelet theory. There are many types of symmetric multiwavelets such as Geronimo-Hardin-Massopust (GHM) and Chui-Lian (CL) multiwavelets. However, the matrix filter generating the GHM system multiwavelets does not satisfy the symmetric property.…
Fecha:	2004-08-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

19.

Techniques for improving the perfomance and scalability of directory-based shared-memory multiprocessors
Acacio Sánchez, Manuel - García Carrasco, José Manuel

Formato:	Articulo, Articulo
Enlaces:	Cache-coherent, nonumiform memory acces or cc-NUMA is an attractive architecture for building a spectrum of shared memory multiprocessors (whic are socing widespread use in commercial, technical and scientific applications). Unfortunately, there are some factors which limit the maximun number of…
Fecha:	2004-05-14
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

Using portable monitoring for heterogeneous clusters on Windows and Linux operating systems
Kikuti, Daniel - Souza, Paulo S. L. - Souza, Simone R. S.

Formato:	Articulo, Articulo
Enlaces:	This paper describes the advances obtained with the XPVM-W95 2.0, a novel monitoring tool for parallel applications that employ PVM-W95 (PVM for Windows) as well as PVM for Linux. The tool provides, at runtime, the appropriate information about parallel virtual…
Fecha:	2004-05-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

Dynamic deadlock detection under the OR requirement model
Campos, Alvaro E. - Orellana, Christian Fabián - Soto, María Pía

Formato:	Articulo, Articulo
Enlaces:	Deadlock detection is one of the most discussed problems in the literature. Although several al- gorithms have been proposed, the problem is still open. In general, the correct operation of an algorithm depends on the requirement model being considered. This…
Fecha:	2004-05-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

22.

Enhancement techniques in fingerprints as a tool in dactyloscopy
Moler, Emilce Graciela - Blotta, Eduardo Luis - Pastore, Juan Ignacio - Meschino, Gustavo - Ballarín, Virginia Laura

Formato:	Articulo, Articulo
Enlaces:	In this work an application of image enhancement techniques in fingerprints is presented. Digital Image-processing technology was applied to restored fingerprints with non-uniform contrast. These fingerprints corresponded to unidentified persons who were murdered by Military Forces in 1976. In 1997,…
Fecha:	2004-05-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

23.

An ontology approach to data integration
Buccella, Agustina - Cechich, Alejandra - Rodríguez Brisaboa, Nieves

Formato:	Articulo, Articulo
Enlaces:	The term Federated Databases refers to the data integration of distributed, autonomous and heterogeneous databases. However, a federation can also include information systems, not only databases. At integrating data, several issues must be addressed. Here, we focus on the problem…
Fecha:	2004-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

24.

Evolutifon of decision support system architectures: applications to land planning and management in Cuba
Segrera, Saddys - Ponce-Hernandez, Raúl - Arcia, J.

Formato:	Articulo, Articulo
Enlaces:	The main objective of this paper centers on reviewing the evolution of Decision Support System´s (DSS) architectures, particularly as they apply to natural resources. Today it is difficult to conceive the existence of a rural planning automated system that doesn't…
Fecha:	2004-02-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

Boundary extraction through gradient-based evolutionary algorithm
Katz, Román - Delrieux, Claudio

Formato:	Articulo, Articulo
Enlaces:	Boundary extraction is an important procedure associated with recognition and interpretation tasks in digital image processing and computer vision. Most of the segmentation techniques are based on the detection of the local gradient, and then their application in noisy images…
Fecha:	2004-02-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

26.

The use of agent to incorporate network awareness into dynamic proxy framework: an overview
Choong, KhongNeng - Ali, Borhanuddin M. - Prakash, Veeraraghavan - Tee, Elok R.

Formato:	Articulo, Articulo
Enlaces:	It has been observed that research in mobile agent focused on the development of platforms and on the application of the concept. Network awareness is one of the applications of mobile agent, concerning of how agent determine and make the…
Fecha:	2004-02-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

27.

Conceptual patterns for water resources information systems
Iturraspe, Rodolfo Javier - Urciuolo, Adriana Beatriz

Formato:	Articulo, Articulo
Enlaces:	Water Resources Information Systems (WRIS) present different types of problems during the data storage and analysis phases, related with the complex nature of the environmental data spacio-temporal phenomena. There are many questions to deal with, such as geographic representation of…
Fecha:	2004-02-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

28.

Boosting classifiers for weed seeds identification
Granitto, Pablo Miguel - Garralda, Pablo A. - Verdes, Pablo Fabián - Ceccatto, Hermenegildo Alejandro

Formato:	Articulo, Articulo
Enlaces:	The identification and classification of seeds are of major technical and economical importance in the agricultural industry. To automate these activities, like in ocular inspection one should consider seed size, shape, color and texture, which can be obtained from seed…
Fecha:	2004-02-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

An algorithm for minimising due times violations in flexible package production scheduling
Ibáñez, Francisco S. - Díaz Araya, Daniel - Forradelas, Raymundo Quilez

Formato:	Articulo, Articulo
Enlaces:	This paper includes part of the strategies used to solve a scheduling problem developed for a company that produces flexible packaging, presented in a quite general form though. In this problem it is necessary to schedule several jobs that involve…
Fecha:	2004-05-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

30.

Development of a relational database management system
Ruiz, Anabel Natalia - Maldonado, Calixto - Martínez Spessot, Cesar Ignacio

Formato:	Articulo, Articulo
Enlaces:	The studies of Relational Data Base Management Systems and Databases constitute nowadays a main tren of investigation in large businesses and universities of the entire world. The creation of a data base engine keeps being a challenge since there are…
Fecha:	2004-05-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

3D requirements visualization
Teyseyre, Alfredo Raúl

Formato:	Articulo, Articulo
Enlaces:	The importance of correctly determining the requirements of a system at the very beginning of the development process it is a well known fact. Experience shows that the incorrect definition of the requirements leads to the development of deficient systems,…
Fecha:	2004-05-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

32.

Distributed environment applied to HR formation/training: a cooperative/collaborative learning model
Lage, Fernando Javier

Formato:	Articulo, Revision
Enlaces:	The subject matter of this work is focused in the development of an application for team work over a distributed system belonging to an organization. This choice is based in the organizations need of their members’ continuing formation/training, and of…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

33.

Error analysis in lossy compressed image transmission algorithms
Ramón, Hugo Dionisio

Formato:	Articulo, Revision
Enlaces:	There is a need of counting on precise measurements of subjective losses that can be used for predicting the quality of an image. The objective of the present work is to determine these distortion measurements and test the use of…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

34.

Heterogeneous parallel-distributed processing applied to process engineering
Vázquez, Gustavo Esteban

Formato:	Articulo, Revision
Enlaces:	The main goal of this thesis was to design new parallel processing strategies specially conceived for distributed environments in order to solve numerical and structural problems from the field of process systems engineering more efficiently. More specifically, the numerical sample…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

Reducing branch misprediction penalty through confidence estimation
Aragón, Juan Luis

Formato:	Articulo, Revision
Enlaces:	The goal of this Thesis is reducing the global penalty associated to branch mispredictions, in terms of both performance degradation and energy consumption, through the use of confidence estimation. The reduction of this global penalty has been achieved, firstly, by…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

36.

A high-level perception architecture: real-time visual navigation for autonomous robots in structured environments
López de Teruel Alcolea, Pedro E.

Formato:	Articulo, Revision
Enlaces:	This thesis describes the design and implementation of a mobile robot which is able to perform a structural interpretation of indoor environments, using only visual and proprioceptive sensory information. The desired behaviour is real-time navigation based on this interpretation, instead…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

37.

Dynamic tuning of parallel/distributed applications
Morajko, Anna

Formato:	Articulo, Revision
Enlaces:	The thesis addresses the problem of automatic and dynamic tuning of parallel and distributed applications. Our objective is to help developers in the process of improving the application performance. The work presents a whole solution that deals with the issues…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

38.

Parallel computing in local area networks
Tinetti, Fernando Gustavo

Formato:	Articulo, Revision
Enlaces:	In this thesis, parallel computing on installed local area networks (LAN) is focused, analyzing problems and possible solutions taking into account the main factors of computing and communications. More specifically, LAN are characterized as parallel computers in the context of…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

39.

Parallel processing
Naiouf, Marcelo

Formato:	Articulo, Revision
Enlaces:	The growing importance and interest in parallel processing within Computer Sciences are undeniable, and thus make it one of the more influencing areas of this discipline. Several reasons support this fact, such as the increase in the computer power, the…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

40.

Operating Systems. A concept-based approach, Second Edition D.M. Dhamdhere McGraw Hill, 2006
Romero, Fernando

Formato:	Articulo, Revision
Enlaces:	The book deals with the topic of Operating Systems from and intuitive perspective and then delves into more technical concepts, which makes it appropriate for a first introductory course on the matter.
Fecha:	2010-10-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

41.

Constraint-Handling in Evolutionary Optimization Efrén Mezura-Montes (Editor) Springer, Studies in Computational Intelligence Series Vol. 198, 1st Edition, 2009
Mezura-Montes, Efrén

Formato:	Articulo, Revision
Enlaces:	The use of evolutionary and swarm intelligence algorithms, has become a very popular option to solve complex real-world optimization problems. However, in their original versions, these algorithms lack a mechanism to handle the constraints of the problem i.e. they were…
Fecha:	2010-10-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

42.

Dynamic scheduling on GRID environments
Bertogna, Leandro M

Formato:	Articulo, Revision
Enlaces:	The work carried out in the thesis describes efficient virtual environments management. One of the main contributions is a middleware scheduling optimization based on Grid environments. Being the overall goal to get an optimal resource selection plus a coordinate task…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

43.

Using scenarios to derive software
Hadad, Graciela Dora Susana

Formato:	Articulo, Revision
Enlaces:	The present thesis describes a Requirements Engineering strategy, called SDRES (Scenario Driven Requirements Engineering Strategy), which proposes to face topics rarely treated in real practice, such as continuous changes in requirements, software defects originated during requirements production, the organisational context…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

44.

Design and implementation considerations for a pedagogical object oriented operating system
Chakraborty, Pinaki

Formato:	Articulo, Revision
Enlaces:	For centuries, experimentation has been at the center of all successful scientific studies. Experimental explorations can offer new perceptions, weed out unproductive approaches and validate theories and practices. Computer Science (CS), as a discipline, has a poor record when it…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

45.

Hybrid optimization techniques for industrial production planning
Vasant, Pandian M.

Formato:	Articulo, Revision
Enlaces:	In this Ph. D thesis, the main significant contributions are: formulation of a new non-linear membership function using fuzzy approach to capture and describe vagueness in the technological coefficients of constraints in the industrial production planning problems [1-3]. This non-linear…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

46.

Parallel application signature for performance prediction
Wong, Alvaro

Formato:	Articulo, Revision
Enlaces:	In order to measure the performance of a parallel machine, a set of application kernels as benchmarks have often been used. However, it is not always possible to characterize the performance using only benchmarks, given the fact that each one…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

47.

Software network analyzer for computer network performance measurement planning over heterogeneous services in higher educational institutes
Ismail, Mohd Nazri

Formato:	Articulo, Revision
Enlaces:	In 21st century, convergences of technologies and services in heterogeneous environment have contributed multi-traffic. This scenario will affect computer network on learning system in higher educational Institutes. Implementation of various services can produce different types of content and quality. Higher…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

48.

Linux device drivers by Alessandro Rubini O Reilly
Romero, Fernando

Formato:	Articulo, Revision
Enlaces:	This book presents an approach based on Linux operating system, including issues such as kernel per se, units use and construction, different types of them, debugging techniques, as well as time management, interruptions, DMA (direct memory access), different buses and…
Fecha:	2008-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

49.

Distance education. A system view by Michael Moore - Greg Kearsley Wadsworth Publishing Company
Gorga, Gladys - Madoz, María Cristina

Formato:	Articulo, Revision
Enlaces:	This text introduces comprehensively the reader to the distance teaching/learning process. With this purpose, it presents a model of the Distance Education System to be used for understanding its embedded elements: contents, instructional design, communications, interaction, learning environment, and administration.
Fecha:	2008-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

50.

Evolutionary algorithms for solving multi-objetive problems. Carlos A. Coello Coello, David A. van Veldhuizen and Gary R., Lamont. Kluwer Academic/Plenum Publishers, New York, first edition, 2002
Esquivel, Susana Cecilia

Formato:	Articulo, Revision
Enlaces:	The area of multi-objective optimization is receiving increasing attention by the comunity of evolutionary computation. In this book the authors present a complete state-of-the art in the field.
Fecha:	2008-10-09
Recurso:	Unversidad Nacional de La Plata