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Unversidad Nacional de La Plata (155)

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Aproximadamente 155 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.

Index structures for distributed text databases
Marin Cahiuan, Juan Mauricio

Formato:	Articulo, Articulo
Enlaces:	The Web has became an obiquitous resource for distributed computing making it relevant to investigate new ways of providing efficient access to services available at dedicated sites. Efficiency is an ever-increasing demand which can be only satisfied with the development…
Fecha:	2004-08-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

15.

On improved deformable template matching for polygonal objects
Luo, Jianshu - Tang, Zeying - Lu, Hanqing

Formato:	Articulo, Articulo
Enlaces:	In this paper, an improvement of deformable template matching algorithm for polygonal objects in grayscale images using two-dimensional deformable templates along orthogonal curves is presented. In the process of pre-computing extensions of the deformable template along orthogonal curves, the novel…
Fecha:	2004-08-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

16.

Reasoning about protocols using Dijkstra´s calculus
Singh, Awadhesh Kumar - Bandyopadhyay, Anup Kumar

Formato:	Articulo, Articulo
Enlaces:	A mathematical model for the specification and verification of a data link layer protocol is proposed. The weakest precondition calculus, developed by Dijkstra, originally for sequential programs, has been chosen for this purpose. It is demonstrated that the wp-calculus provides…
Fecha:	2004-08-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

Activation and termination detection on distributed systems
Baraldi, Waldemar A. - Scarpa, Diego - Ponzoni, Ignacio - Ardenghi, Jorge Raúl

Formato:	Articulo, Articulo
Enlaces:	Facing the different approaches to process activation and global termination detection on distributed systems, this paper performs a practical comparison between the mainly opposed centralized and distributed models. Firstly, they were implemented to solve both the activation and termination detection…
Fecha:	2004-08-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

A GRASP algorithm with tree based local search for designing a survivable wide area network backbone
Cancela, Héctor - Robledo, Franco - Rubino, Gerardo

Formato:	Articulo, Articulo
Enlaces:	System survivability is the ability to give service in spite of failures of some of the components. To assure survivability is an important goal when designing a communications network backbone, to ensure that it can resist to failures in the…
Fecha:	2004-08-24
Recurso:	Unversidad Nacional de La Plata

Recurso libre

19.

ALENA
Corbalán, Leonardo C. - Lanzarini, Laura Cristina - De Giusti, Armando Eduardo

Formato:	Articulo, Articulo
Enlaces:	Evolving neural arrays (ENA) have proved to be capable of learning complex behaviors, i.e., problems whose solution requires strategy learning. For this reason, they present many applications in various areas such as robotics and process control. Unlike conventional methods "based…
Fecha:	2004-08-24
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

CBS: constraint-based approach for scheduling in bluetooth networks
Yu, Shengsheng - Zhou, Jingli - Jiang, Gang

Formato:	Articulo, Articulo
Enlaces:	In Bluetooth networks, devices are organized into small piconets and large scatternets, and each node acts as the role of master, slave or gateway. Due to dynamic topology changes, different bandwidth available and unpredictable interference of media in Bluetooth networks,…
Fecha:	2004-08-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

Towards a metric suite for OCL expressions expressed within UML/OCL models
Reynoso, Luis A. - Genero Bocco, Marcela - Piattini Velthuis, Mario

Formato:	Articulo, Articulo
Enlaces:	UML models quality is clearly a crucial issue that must be evaluated at the initial stages of object-oriented software development, in order to get software products with better quality. This fact is corroborated by the huge amount of metrics that…
Fecha:	2004-08-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

22.

Integrating defeasible argumentation with fuzzy ART neural networks for pattern classification
Gómez, Sergio Alejandro - Chesñevar, Carlos Iván

Formato:	Articulo, Articulo
Enlaces:	Many classification systems rely on clustering techniques in which a collection of training examples is provided as an input, and a number of clusters c<SUB>1</SUB>,...c<SUB>m</SUB> modelling some concept C results as an output, such that every cluster c<SUB>i</SUB> is labelled…
Fecha:	2004-08-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

23.

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

24.

Dynamic data driven application for forest fire spread prediction
Denham, Mónica Malén

Formato:	Articulo, Revision
Enlaces:	This work describes a two stages prediction method for wildland ﬁre growth prediction. Proposed method takes advantege of genetic algorithms in order to develope a high performance and scalable application.
Fecha:	2012-08-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

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

26.

Decision support system for seismic risks
Somodevilla, María J. - Priego, Ángeles Belém - Castillo, Esteban - Pineda, Ivo H. - Vilariño, Darnes - Nava, Angélica

Formato:	Articulo, Articulo
Enlaces:	This paper focuses on prediction and prevention of seismic risk through a system for decision making. Data Warehousing and OLAP operations are applied, together with, data mining tools like association rules, decision trees and clustering to predict aspects such as…
Fecha:	2012-08-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

27.

Netconf element management system
Bertolina, Martín

Formato:	Articulo, Revision
Enlaces:	The Network Configuration Protocol (Netconf) is an IETF network management protocol using an RPCbased communication model. It was developed in the Netconf working group and published in December 2006 as RFC 4741 and later revised in June 2011 (RFC 6241).…
Fecha:	2012-08-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

28.

Computación de alto desempeño en GPU, High Performance Computing in GPU
Piccoli, María Fabiana

Formato:	Articulo, Revision
Enlaces:	Through this textbook (written in Spanish), the author introduces the GPU as a parallel computer that is able to solve general-propose problems. The book has a didactic approach, it includes the first steps to CUDA programming, some tips to take…
Fecha:	2012-08-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

Information sharing - Beneﬁts
Mendes Calo, Karla - Cenci, Karina M. - Fillottrani, Pablo Rubén - Estevez, Elsa Clara

Formato:	Articulo, Articulo
Enlaces:	Government Information Sharing (GIS) allows information exchange and integration between different government departments, agencies, as well as between public and private institutions. Sharing information enables enhanced efﬁciency -avoiding duplication of processes updating the same data; better quality of processes and…
Fecha:	2012-08-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

30.

QoS in GNU/Linux: its application on free Internet infrastructure
Charne, Javier - Riva, Diego Germán de la - Ramón, Hugo Dionisio - Jaszczyszyn, Adrián

Formato:	Articulo, Articulo
Enlaces:	With the advent of VoIP transport and videoconferencing/telepresence equipment at relative low costs, companies started to use a single provider for data, telephony and video, thus causing three types of transport –with different characteristics and requirements- to converge in a…
Fecha:	2012-08-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

An approach for temporal argumentation using Labeled Defeasible Logic Programming (l-DeLP)
Budán, Maximiliano - Gómez Lucero, Mauro J. - Simari, Guillermo Ricardo

Formato:	Articulo, Articulo
Enlaces:	In the last decade, several argument-based formalisms have emerged, with application in many areas, such as legal reasoning, autonomous agents and multi-agent systems; many are based on Dung’s seminal work characterizing Abstract Argumentation Frameworks (AF). Recent research in the area…
Fecha:	2012-08-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

32.

Implementation and evaluation of protocols translating methods for IPv4 to IPv6 transition
Pérez Monte, Cristian - Robles, María Inés - Mercado, Gustavo - Taffernaberry, Juan Carlos - Orbiscay, Marcela - Tobar, Sebastián - Moralejo, Raúl - Pérez, Santiago

Formato:	Articulo, Articulo
Enlaces:	Today millions of computers are interconnected using the Internet Protocol version 4 (IPv4) and can not switch to the new version, IPv6, simultaneously. For this reason the IETF has defined a number of mechanisms for transitioning to the new protocol…
Fecha:	2012-08-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

33.

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

34.

HTSN: a complex workflow model based on colored Petri net
Zhu, Haiping - Li, Peigen - Zhang, Guojun

Formato:	Articulo, Articulo
Enlaces:	Traditional workflow models have obvious shortcomings in describing complex workflows. Such complexity is due not only to the hierarchical property of business process, but also to the complicated dependencies among tasks. In this paper, we first introduce a conceptual task…
Fecha:	2004-11-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

Learning by generation in computer science education
Kerren, Andreas

Formato:	Articulo, Articulo
Enlaces:	The use of generic and generative methods for the development and application of interactive educational software is a relatively unexplored area in industry and education. Advantages of generic and generative techniques are, among other things, the high degree of reusability…
Fecha:	2004-11-24
Recurso:	Unversidad Nacional de La Plata

Recurso libre

36.

Teaching fundamentals of computing theory: a constructivist approach
Chesñevar, Carlos Iván - Maguitman, Ana Gabriela - González, María Paula - Cobo, María Laura

Formato:	Articulo, Articulo
Enlaces:	A Fundamentals of Computing Theory course involves different topics that are core to the Computer Science curricula and whose level of abstraction makes them difficult both to teach and to learn. Such difficulty stems from the complexity of the abstract…
Fecha:	2004-11-24
Recurso:	Unversidad Nacional de La Plata

Recurso libre

37.

Design of distance courses in a web learning environment (WebLIDI)
Sanz, Cecilia Verónica - Zangara, María Alejandra - Gonzalez, Alejandro Héctor - De Giusti, Armando Eduardo - Ibañez, Eduardo

Formato:	Articulo, Articulo
Enlaces:	This paper presents some of the aspects related to the multidisciplinary research process initiated in III LIDI for the development of a learning environment focused on the WEB (WebLIDI). It attempts to gather, in a work group, the technology working…
Fecha:	2004-11-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

38.

An evolutionary algorithm to track changes of optimum value locations in dynamic environments
Aragón, Victoria S. - Esquivel, Susana Cecilia

Formato:	Articulo, Articulo
Enlaces:	Non-stationary, or dynamic, problems change over time. There exist a variety of forms of dynamism. The concept of dynamic environments in the context of this paper means that the fitness landscape changes during the run of an evolutionary algorithm. Genetic…
Fecha:	2004-11-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

39.

A five-valued logic and a system
Ferreira, Ulisses

Formato:	Articulo, Articulo
Enlaces:	The present article introduces a five-valued logic and a deductive system. Here, the logic presented is a relevant fragment of the @-logic, which is also a space-time logic. These five values correspond to the following semantics: unknown, possibly known but…
Fecha:	2004-11-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

40.

Color image segmentation using multispectral random field texture model & color content features
Hernandez, Orlando J. - Khotanzad, Alireza

Formato:	Articulo, Articulo
Enlaces:	This paper describes a color texture-based image segmentation system. The color texture information is obtained via modeling with the Multispectral Simultaneous Auto Regressive (MSAR) random field model. The general color content characterized by ratios of sample color means is also…
Fecha:	2004-11-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

41.

Accurate calibration of stereo cameras for machine vision
Li, Liangfu - Feng, Zuren - Feng, Yuanjing

Formato:	Articulo, Articulo
Enlaces:	Camera calibration is an important task for machine vision, whose goal is to obtain the internal and external parameters of each camera. With these parameters, the 3D positions of a scene point, which is identified and matched in two stereo…
Fecha:	2004-11-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

42.

Carpal-bone feature extraction analysis in skeletal age assessment based on deformable model
Pan, Lin - Zhang, Feng - Yang, Yong - Zheng, Chong-Xun

Formato:	Articulo, Articulo
Enlaces:	Skeletal age assessment is one of the important applications of hand radiography in the area of pediatric radiology. Features analysis of the carpal bones can reveal the important information for skeletal age assessment. The present work in this paper faces…
Fecha:	2004-11-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

43.

A cryptography method employing a new mathematical paradigm for public keys schemes
Ribeiro, Vinicius Gadis - Weber, Raul Fernando

Formato:	Articulo, Articulo
Enlaces:	blic Keys Schemes usually generate two pairs of keys that bear some mathematical relation-usually, a relation of the field known as Number Theory. Identifying a key from another that is given is a problem of great difficulty. This paper presents…
Fecha:	2004-12-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

44.

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

45.

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

46.

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

Recurso libre

47.

Implementing agents for a collaborative online learning environment
Azevedo, Hilton José Silva de - Scalabrin, Edson Emílio - Faria, Marcio de Paula - Manfroi, Fairus

Formato:	Articulo, Articulo
Enlaces:	This paper discusses the main lines used to model intelligent agents that will operate in a Collaborative Online Learning Environment-COLE. The aim of COLE is to evaluate the contribution that Information Technology and Multiagent Systems can bring to the discussion…
Fecha:	2004-11-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

48.

Knowledge insertion: an efficient approach to reduce search effort in evolutionary scheduling
Pandolfi, Daniel - Lasso, Marta - De San Pedro, María Eugenia - Villagra, A. - Gallard, Raúl Hector

Formato:	Articulo, Articulo
Enlaces:	Evolutionary algorithms (EAs) are merely blind search algorithms, which only make use of the relative fitness of solutions, but completely ignore the nature of the problem. Their performance can be improved by using new multirecombinative approaches, which provide a good…
Fecha:	2004-11-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

49.

Design and development of a platform for internet-based collaborative product development
Zhang, Kui - Zhou, Jianzhong

Formato:	Articulo, Articulo
Enlaces:	In order to accomplish collaborative product development in the area of engineering, a work platform is needed to support all-sided collaborative work by the different development partners at geographically different locations. The platform is established on the basis of a…
Fecha:	2004-11-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

50.

Watch IT: The risks and promises of new information technologies. Nicholas C. Burbules, Thomas A. Callister (h) Ediciones Granica S. A., 2001
Gorga, Gladys - Madoz, María Cristina

Formato:	Articulo, Revision
Enlaces:	Descripción completa.
Fecha:	2008-10-10
Recurso:	Unversidad Nacional de La Plata