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Aproximadamente 12789 registro(s) hasta el momento: (journal)

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Recurso libre

Spherical layout layout for 3D graph visualization
Larrea, Martín Leonardo

Formato:	Articulo, Revision
Enlaces:	The goal of this work was centered in the graph visualization. The hope is that the extra dimension would give, literally, more space, and that this would ease the problem of displaying large structures. In spite of their apparent simplicity,…
Fecha:	2011-09-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Sistema basado en redes neuronales digitales aplicado a la predicción climática en ambientes con microclima controlado
Tosini, Marcelo Alejandro

Formato:	Articulo, Revision
Enlaces:	This thesis describes the design, implementation and evaluation of FPGA Architecture of a Digital ANN (Artificial Neural Networks) by using four components: data memory, weights memory, neuron module, and control unit. All these components have a generic orthogonal structure in…
Fecha:	2011-09-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Disjoint multipath routing for mobile ad hoc networks
Abbas, Ash Mohammad

Formato:	Articulo, Revision
Enlaces:	In this thesis, we emphasized the need to use multiple node-disjoint paths between a given source and destination. The use of node-disjoint paths not only allows different paths to share the trafﬁc, but also provides fault-tolerance to some extent. However,…
Fecha:	2011-09-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Feedback scheduling of real-time control systems with resource constraints
Xia, Feng

Formato:	Articulo, Revision
Enlaces:	This thesis observes the emerging trend of convergence of control with computing and communication. By exploiting control and scheduling codesign, we study some practical and open problems in RTCSs from a unique viewpoint of dynamic resource management. Considering constraints on…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Celsius Bloodhound
De Giusti, Marisa Raquel - Villarreal, Gonzalo Luján

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The Library Linkage Project (PrEBi) has as main objective to share the bibliographic acervus resident in ISTEC Institutions, in order to satisfy the demand of Researchers, Teachers and Students. To manage the bibliography requirements (journal articles, book chapters, congress proceedings,…
Fecha:	2007-11-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Metamaterials
Borja, Alejandro Lucas - Kelly, James R. - Zhang, Fuli - Lheurette, Eric

Formato:	Article
Enlaces:	This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited., Editorial.
Fecha:	2013-07-08
Recurso:	Anglia Ruskin University

Recurso libre

Poverty among the elderly in Latin America and the Caribbean
Gasparini, Leonardo - Alejo, Javier - Haimovich, Francisco - Olivieri, Sergio - Tornarolli, Leopoldo

Formato:	Articulo, Documento de trabajo
Enlaces:	This paper provides evidence on the incidence of poverty among the elderly in Latin America and the Caribbean, based on household survey microdata from 20 countries. The situation of older people is characterized in terms of income, employment, education, health…
Fecha:	2010-06-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Improving radar visualization system
Acosta, Nelson - Tosini, Marcelo Alejandro - Mezzanotte, Martín F. - Tommasi, M. Carolina

Formato:	Articulo, Articulo
Enlaces:	This work develops a system to visualize the information for radar systems interfaces. It is a flexible, portable software system that allows to be used for radars that have different technologies and that is able to be adapted to the…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

An inference mechanism for question answering
Roger, Sandra - Ferrández, Sergio - López Moreno, Pilar - Peral, Jesús

Formato:	Articulo, Articulo
Enlaces:	This work describes an inference mechanism applied to AliQAn Question Answering System for Spanish in open domain. AliQAn is based fundamentally on the use of syntactic patterns to identify the possible answers. An inference mechanism is applied to the questions…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

10.

Toward integration of knowledge based systems and knowledge discovery systems
Rancan, Claudio - Pesado, Patricia - García-Martínez, Ramón

Formato:	Articulo, Articulo
Enlaces:	This paper presents a proposal for an architecture that integrates knowledge discovery systems (automatic acquisition) and knowledge based systems (experts systems). This work formulates considerations over the viability of the implementation of this architecture according to the advance of the…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

11.

Harmonic Theory and Machine Learning
Nanclares, Jorge - Rapallini Ulises Mario Alberto

Formato:	Articulo, Articulo
Enlaces:	A natural inference mechanism is presented : the Black Box problem is transformed into a Dirichlet's problem on the closed cube. Then it is solved in closed polynomial form, together with a Mean-Value theorem and a Maximum Principle.A generalization to…
Fecha:	2008-05-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

12.

Labor informality effects of a poverty-alleviation program
Gasparini, Leonardo - Haimovich, Francisco - Olivieri, Sergio

Formato:	Articulo, Documento de trabajo
Enlaces:	In the midst of a serious macroeconomic crisis Argentina implemented a large social program -the Programa Jefes de Hogar (PJH)- that provides cash transfers to unemployed household heads meeting certain criteria. In practice, giving the difficulties in monitoring informal jobs,…
Fecha:	2010-06-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

13.

Spatial selection of sparse pivots for similarity search in metric spaces
Rodríguez Brisaboa, Nieves - Fariña, Antonio - Pedreira, Óscar - Reyes, Nora Susana

Formato:	Articulo, Articulo
Enlaces:	Similarity search is a fundamental operation for applications that deal with unstructured data sources. In this paper we propose a new pivot-based method for similarity search, called Sparse Spatial Selection (SSS). The main characteristic of this method is that it…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

14.

A lightweight method for computing ball spin in real time
Cristina, Federico - Dapoto, Sebastián H. - Russo, Claudia Cecilia

Formato:	Articulo, Articulo
Enlaces:	The present paper poses a new method for computing the rotation of a ball in sport training situations, when the ball is approaching the goal line. The proposed method significantly reduces the hardware requirements associated to the capture, as well…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

15.

A model for the automatic mapping of tasks to processors in heterogeneous multi-cluster architectures
De Giusti, Laura Cristina - Chichizola, Franco - Naiouf, Marcelo - Ripoll, Ana - De Giusti, Armando Eduardo

Formato:	Articulo, Articulo
Enlaces:	This paper discusses automatic mapping methods for concurrent tasks to processors applying graph analysis for the relation among tasks, in which processing and communicating times are incorporated. Starting by an analysis in which processors are homogeneous and data transmission times…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

16.

An ACO model for a non-stationary formulation of the single elevator problem
Molina, Silvia - Leguizamón, Mario Guillermo - Alba, Enrique

Formato:	Articulo, Articulo
Enlaces:	The Ant Colony Optimization (ACO) metaheuristic is a bio-inspired approach for hard combinatorial optimization problems for stationary and non-stationary environments. In the ACO metaheuristic, a colony of artificial ants cooperate for finding high quality solutions in a reasonable time. An…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

Computing support for problem solving in virtual communities of practice
Casalini, María Clara - Estevez, Elsa Clara - Janowski, Thomas

Formato:	Articulo, Articulo
Enlaces:	The paper presents a formal model for a knowledge repository shared by members of a Virtual Community of Practice (VCPs), describes how the repository can be used to underpin collaborative problem solving, and how to build computer support for such…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

Interaction on graphs using non-conventional devices
Escarza, Sebastián - Castro, Silvia Mabel - Martig, Sergio R.

Formato:	Articulo, Articulo
Enlaces:	Interactions become essential in Visualization because they enable users to adapt the visual representation to their own needs allowing them to explore the underlying information space. By using non-conventional devices, they face a wider fan of interaction possibilities to explore…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

19.

Directional continuous wavelet transform applied to handwritten numerals recognition using neural networks
Romero, Diego - Seijas, Leticia - Ruedín, Ana M. C.

Formato:	Articulo, Articulo
Enlaces:	The recognition of handwritten numerals has many important applications, such as automatic lecture of zip codes in post offices, and automatic lecture of numbers in checknotes. In this paper we present a preprocessing method for handwritten numerals recognition, based on…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

CISNE-P: a global scheduling oriented to now environments
Torchinsky, Matías - Hanzich, Mauricio - Hernández Budé, Porfidio - Luque Fadón, Emilio - Giné de Solà, Francesc - Solsona Theás, Francesc - Lérida, Josep L.

Formato:	Articulo, Articulo
Enlaces:	In this work, we present an integral scheduling system for non-dedicated clusters, termed CISNE-P, which ensures the performance required by the local applications, while simultaneously allocating cluster resources to parallel jobs. Our approach solves the problem efficiently by using a…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

The successful application of natural language processing for information retrieval
Ferrández, Antonio - Rojas, Yenory - Peral, Jesús

Formato:	Articulo, Articulo
Enlaces:	In this paper, a novel model for monolingual Information Retrieval in English and Spanish language is proposed. This model uses Natural Language Processing techniques (a POStagger, a Partial Parser, and an Anaphora Resolver) in order to improve the precision of…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

22.

Framework for web application agile development
Delía, Lisandro - Cáseres, Germán - Ramón, Hugo Dionisio - Thomas, Pablo Javier - Bertone, Rodolfo Alfredo

Formato:	Articulo, Articulo
Enlaces:	Any system interacting with a data base requires modules capable of operating data stored in it. Its development times generally vary between 50 to 60 % of the time used for the application life cycle. The present paper describes the…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

23.

Center selection techniques for metric indexes
Mendoza Alric, Cristian - Herrera, Norma Edith

Formato:	Articulo, Articulo
Enlaces:	The metric spaces model formalizes the similarity search concept in nontraditional databases. The goal is to build an index designed to save distance computations when answering similarity queries later. A large class of algorithms to build the index are based…
Fecha:	2008-05-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

24.

Evacuation simulations using cellular automata
Tissera, Pablo - Printista, Alicia Marcela - Errecalde, Marcelo Luis

Formato:	Articulo, Articulo
Enlaces:	Computer simulations using Cellular Automata (CA) have been applied with considerable success in diferent scientific areas, such as chemistry, biochemistry, economy, physics, etc. In this work we use CA in order to specify and implement a simulation model that allows…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

Process tracking for dynamic tuning applications on the grid
Costa, Genaro - Morajko, Anna - Margalef, Tomás - Luque Fadón, Emilio

Formato:	Articulo, Articulo
Enlaces:	The computational resources need by the scientific community to solve problems is beyond the current available infrastructure. Performance requirements are needed due constant research progress, new problems studies or detail increase of the current ones. Users create new wide distributed…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

26.

Cellular outline segmentation using fractal estimators
Salvatelli, Adrián - Caropresi, José - Delrieux, Claudio - Izaguirre, María F. - Casco, Víctor

Formato:	Articulo, Articulo
Enlaces:	Segmentation in biological images is essential for the determination of biological parameters that allow the construction of models of several biological problems. This helps to establish clear relationships between those models and the parameter estimation, and for elaboration of key…
Fecha:	2008-05-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

27.

Land-rich economies, education and economic development
Galiani, Sebastian - Heymann, Daniel - Dabús, Carlos - Tohmé, Fernando Abel

Formato:	Articulo, Documento de trabajo
Enlaces:	En este trabajo se analiza la emergencia de sistemas de educación de gran escala en un marco donde el crecimiento se asocia con cambios en la configuración de la economía. Se modelan los incentivos que le elite económica puede tener…
Fecha:	2010-06-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

28.

Performance Analysis WORKSHOP, April 2nd - 5th, 2013 - Alicante, Spain
Journal of Human Sport & Exercise - Sport Health - International Network of Sport and Health Science - SportProfNet (Worldwide Community in Sport Science) - Varioo Collector

Formato:	info:eu-repo/semantics/article
Enlaces:	Descripción completa.
Fecha:	2013-07-22
Recurso:	RUA Docencia

Recurso libre

29.

Hardware radial basis function neural network automatic generation
Leiva, Lucas - Acosta, Nelson

Formato:	Articulo, Articulo
Enlaces:	This paper presents a parallel architecture for a radial basis function (RBF) neural network used for pattern recognition. This architecture allows defining sub-networks which can be activated sequentially. It can be used as a fruitful classification mechanism in many application…
Fecha:	2011-03-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

30.

Diseño y evaluación de arquitecturas de computadoras
Villagarcía Wanza, Horacio A.

Formato:	Articulo, Revision
Enlaces:	In the first paragraph of the Introduction of the book the authors say "The definition of computer architecture has generated many discussions since the emergence of what could be considered the first computer in 1943, the ENIAC". Later they add…
Fecha:	2011-03-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

Test automation for Markov Chain Usage Models
Bettinotti, Adriana M. - Garavaglia, Mauricio

Formato:	Articulo, Articulo
Enlaces:	Statistical testing with Markov Chain Usage Models is an effective method to be used by programmers and testers during web sites development, to guarantee the software reliability. The JUMBL software works on this models; it supports model construction with the…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

32.

Distributed systems: principles and paradigms (2nd edition)
Tinetti, Fernando Gustavo

Formato:	Articulo, Revision
Enlaces:	This book presents the authors' updated view on the most relevant topics of distributed systems. This second edition shares most of the contents with the previous one in terms of contents/chapters, but many of the chapters have been updated and…
Fecha:	2011-10-28
Recurso:	Unversidad Nacional de La Plata

Recurso libre

33.

Spectroscopic and electrochemical study of the redox process of poly(2,2'-dithiodianiline)
Cotarelo Méndez, María de los Ángeles - Huerta Arráez, Francisco - Quijada Tomás, César - Pérez Martínez, José María - Valle de la Cortina, María Angélica del - Vázquez Picó, José Luis

Formato:	info:eu-repo/semantics/article
Enlaces:	The redox process undergone by the electrochemically synthesized poly(2,2-dithiodianiline), poly(DTDA), has been examined in acetonitrile-water mixtures by electrochemical and spectroscopic techniques. The spectroscopic properties of this material are equivalent to those exhibited by the chemically synthesized one. The polymeric structure…
Fecha:	2007-10-26
Recurso:	RUA Docencia

Recurso libre

34.

Definition of a goal elicitation process
Thomas, Pablo Javier

Formato:	Articulo, Revision
Enlaces:	Descripción completa.
Fecha:	2011-09-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

An adaptive variable structure controller for the trajectory tracking of a nonholonomic mobile robot with uncertainties and disturbances
Almeida Martins, Nardênio - El'youssef, Ebrahim Samer - De Pieri, Edson Roberto - Lombardi, Warody Claudinei - Jungers, Marc

Formato:	Articulo, Articulo
Enlaces:	In this paper, a trajectory tracking control for a nonholonomic mobile robot subjected to uncertainties and disturbances in the kinematic model is proposed. An adaptive variable structure controller based on the sliding mode theory is used, and applied to compensate…
Fecha:	2011-03-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

36.

Position index preserving compression of text data
Akhtar, Nasim - Rashid, Mamunur - Islam, Shafiqul - Kashem, Mohammod Abul - Kolybanov, Cyrll Y.

Formato:	Articulo, Articulo
Enlaces:	Data compression offers an attractive approach to reducing communication cost by using available bandwidth effectively. It also secures data during transmission for its encoded form. In this paper an index based position oriented lossless text compression called PIPC ( Position…
Fecha:	2011-03-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

37.

Group mutual exclusion based on priorities
Cenci, Karina M. - Ardenghi, Jorge Raúl

Formato:	Articulo, Articulo
Enlaces:	We propose a distributed solution for the group mutual exclusion problem based on priorities, in a network with no share memory whose members only communicate by messages. The proposed algorithm is composed by two players: groups and processes, groups are…
Fecha:	2011-03-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

38.

Reversible data hiding exploiting variance in wavelet coefficients
Luo, Xu-Ren - Yin, Te-Lung

Formato:	Articulo, Articulo
Enlaces:	In this paper, we present a new reversible data hiding scheme that utilizes the wavelet transform and better exploits the large wavelet coefficient variance to achieve high capacity and imperceptible embedding. Our scheme differs from those of previous studies in…
Fecha:	2011-03-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

39.

E-mail processing with fuzzy SOMs and association rules
Lanzarini, Laura Cristina - Villa Monte, Augusto - Estrebou, César

Formato:	Articulo, Articulo
Enlaces:	E-mail texts are hard to process due to their short length. In this article, the use of a diffuse neural network that is capable of identifying the most relevant terms in a set of e-mails is proposed. The associations between…
Fecha:	2011-03-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

40.

Protocols for microcontrollers networks
López, Ricardo A.

Formato:	Articulo, Revision
Enlaces:	The microcontrollers are embedded in our way of life and are found in many devices. The ability of Very High Scale Integration (VLSI) - with almost exponential growth in recent years makes these devices every day contain functions previously unthinkable.
Fecha:	2011-03-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

41.

Using thematic contexts and previous solutions for maintaining and accessing institutional repositories
Delgado, Pablo H. - Maguitman, Ana Gabriela - Ferracutti, Victor M. - Herrera, Luis A.

Formato:	Articulo, Articulo
Enlaces:	Institutional Repositories are collections of digital resources organized to facilitate their long term access. Two fundamental issues that need to be addressed at the moment of implementing these repositories are their maintenance and search instruments. This article describes an intelligent…
Fecha:	2011-10-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

42.

Image steganography: hiding short audio messages withidin digital images
Khalil, M.I.

Formato:	Articulo, Articulo
Enlaces:	It is sometimes not enough to keep the contents of a message secret, it may also be necessary to keep the existence of the message secret. The technique used to implement this, is called steganography and it is the process…
Fecha:	2011-10-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

43.

Forward-link throughput optimization for wireless cellular packet data networks
Ekpenyong, Moses E.

Formato:	Articulo, Articulo
Enlaces:	An attempt has been made in this paper to access the control layer of the General Packet Radio Service (GPRS) network base station (BS), using throughput optimization. We focus on the effect of packet transmissions on the throughput of forwardlink…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

44.

Fuzzy classification to classify the income category based on entropy
Srinivasan, Vaiyapuri - Govind, Rajenderan - Jagannathan, Vandar Kuzhali - Murugesan, Aruna

Formato:	Articulo, Articulo
Enlaces:	The classification problem is one of the main issues in data mining because it aims to extract a classifier which can be used to predict the classes of objects whose class table are unknown. This paper deals with classifying the…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

45.

Formal analysis of a novel mutual authentication and key agreement protocol
Saraireh, Ja'afer M. al - Saraireh, Saleh S. - Saraireh , Mohammad S. - Nabhan, Mohammad M. al

Formato:	Articulo, Articulo
Enlaces:	This research work analyzes the universal mobile telecommunication system (UMTS) authentication and key agreement (AKA) protocol, which suffers from the traffic bottleneck at home location register and authentication center (HLR/AuC). In addition, serving network has no capability to authenticate mobile…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

46.

A formal structure of separation of duty and trust in modelling delegation policy
Ogundele, Oloruntoba Samuel - Adewale, O. S. - Alese, B. K. - Falaki, S. O.

Formato:	Articulo, Articulo
Enlaces:	There are considerable number of approaches to policy specification both for security management and policy driven network management purposes as reported in [20]. This specification sort security policies into two basic types: authorization and obligation policies. Most of the researches…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

47.

Fortran refactorings for legacy systems
Méndez, Mariano

Formato:	Articulo, Revision
Enlaces:	This thesis is based on a certain type of legacy software that came from scientific research. Scientists have become one of the most important legacy code producers for many reasons. One of these is long-lived field (about 50 years old)…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

48.

Methodology for efficient execution of SPMD applications on multicore clusters
Muresano, Ronal

Formato:	Articulo, Revision
Enlaces:	Nowadays, the scientific applications are developed with more complexity and accuracy and these precisions need high computational resources to be executed. Also, the current trend in high performance computing (HPC) is to find clusters composed of Multicore nodes, and these…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

49.

The seven ages of Fortran
Metcalf, Michael

Formato:	Articulo, Articulo
Enlaces:	When IBM's John Backus first developed the Fortran programming language, back in 1957, he certainly never dreamt that it would become a world-wide success and still be going strong many years later. Given the oft-repeated predictions of its imminent demise,…
Fecha:	2011-03-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

50.

Multipath fault-tolerant routing policies to deal with dynamic link failures in high speed interconnection networks
Zarza, Gonzalo

Formato:	Articulo, Revision
Enlaces:	In this thesis, we present fault-tolerant routing policies based on concepts of adaptability and deadlock freedom, capable of serving interconnection networks affected by a large number of dynamic link failures. The strongest point of this thesis is that it provides…
Fecha:	2011-10-28
Recurso:	Unversidad Nacional de La Plata