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Aproximadamente 64 registro(s) hasta el momento: (journal)

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Recurso libre

Two fuzziness indexes proposed by Kaufmann: observations about them
Sierra Duque, Carlos M. - Álvarez, Hernán

Formato:	Articulo, Articulo
Enlaces:	Professor Arnold Kaufmann did propose at least two types of indexes for estimating fuzziness in finite standard fuzzy sets. First one has an analogue formulation to that stated by Claude Shannon for measuring uncertainty in a given system. Shannon formulation…
Fecha:	2009-05-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Extracting contour lines from topographic maps based on cartography and graphics knowledge
Wu, Rui-Qing - Cheng, Xi-Ran - Yang, Cun-Jian

Formato:	Articulo, Articulo
Enlaces:	This paper addresses the problem of contour line extraction from scanned topographic maps in poor condition. A novel method is developed, using knowledge of cartography and graphics to extract contours by removing other layers which overlay the contours, and reconstructing…
Fecha:	2009-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

The studies on hydrophilic-lipophilic balance (HLB): sixty years after William C. Griffin's pioneer work (1949-2009)
Pasquali, Ricardo C. - Sacco, Natalia - Bregni, Carlos

Formato:	Articulo, Articulo
Enlaces:	The Hydrophilic-Lipophilic Balance (HLB)was formally presented by William C. Griffin sixty years ago at a meeting in Chicago for the first time and later on in an article published in the first volume of the Journal of the Society of…
Fecha:	2009-06-24
Recurso:	Unversidad Nacional de La Plata

Recurso libre

E711 - A public emergency wireless phone system
Matos, Victor - Blake, Ben

Formato:	Articulo, Articulo
Enlaces:	This paper introduces the conceptual design of a new information technology integrating wireless telephony and Internet services to assist in locating lost or displaced people in a moment of crisis. This public safety service is based on a novel text…
Fecha:	2009-04-13
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Measuring the component of a divide and conquer skeleton
Printista, Alicia Marcela - Saez, Fernando

Formato:	Articulo, Articulo
Enlaces:	Current performance prediction analytical models try to characterize the performance behavior of actual machines through a small set of parameters. Due to different factors, the predicted times suffer substantial deviations. A natural approach is to associate a different proportionality constant…
Fecha:	2009-05-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Global and local selection in differential evolution for constrained numerical optimization
Mezura-Montes, Efrén - Monterrosa-López, Carlos A.

Formato:	Articulo, Articulo
Enlaces:	The performance of two selection mechanisms used in the most popular variant of differential evolution, known as DE/rand/1/bin, are compared in the solution of constrained numerical optimization problems. Four performance measures proposed in the specialized literature are used to analyze…
Fecha:	2009-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Hybrid approach for designing smart adaptive Web Sites
Kelash, Hamdey M. - Koutb, Magdy M. - Abu Al Kahir, Mona M.

Formato:	Articulo, Articulo
Enlaces:	The very beginning of the research on Smart Adaptive Web Systems (SAWS). They are systems that adapt their response based on the context in which they are used. In AWS, three main sources of information have been identified are: user,…
Fecha:	2009-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Robust realtime face recognition and tracking system
Chen, Kai - Zhao, Le Jun

Formato:	Articulo, Articulo
Enlaces:	There s some very important meaning in the study of realtime face recognition and tracking system for the video monitoring and artifical vision. The current method is still very susceptible to the illumination condition, non-real time and very common to…
Fecha:	2009-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

A simulation agent for efficient network evaluation in 3G cellular mobile radio planning
Isabona, Joseph - Ekpenyong, Moses E. - Akhirevbulu, Ojeabu

Formato:	Articulo, Articulo
Enlaces:	An accurate procedure for evaluating the strong correlation and conflicting goals of coverage, capacity and Quality of Service (QoS) is required for efficient planning of 3G radio networks. In this paper, we explore and implement an agent-based simulation methodology which…
Fecha:	2009-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

10.

An economic view of indirect reputation management for grids
Echaiz, Javier - Ardenghi, Jorge Raúl

Formato:	Articulo, Articulo
Enlaces:	Scientific collaboration are becoming interdisciplinary, and scientists are working in informal collaboration to solve complex problems that require multiple types of large resources. An option is a computational grid. A computational grid is a distributed infrastructure that appears to the…
Fecha:	2009-04-13
Recurso:	Unversidad Nacional de La Plata

Recurso libre

11.

Optimized cost effective approach for selection of materialized views in data warehousing
Ashadevi, B. - Balasubramanian, R

Formato:	Articulo, Articulo
Enlaces:	A data warehouse efficiently processes a given set of queries by utilizing the multiple materialized views. Owing to the constraint on space and maintenance cost, the materialization of all views is unfeasible. One of the critical decisions involved in the…
Fecha:	2009-05-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

12.

Semiclassical grounds of the Calderbank-Shor-Steane quantum error correction codes
Avila Aoki, Manuel

Formato:	Articulo, Articulo
Enlaces:	A valid Calderbank-Shor-Steane (CSS) error correction code requires two classical linear codes for the preparation of the initial state (codewords). This code allow to correct for certain errors caused by an unwanted interaction which produces a degraded quantum state. However,…
Fecha:	2009-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

13.

Reduced computational cost in the calculation of worst case response time for real time systems
Urriza, José M. - Schorb, Lucas - Orozco, Javier D. - Cayssials, Ricardo

Formato:	Articulo, Articulo
Enlaces:	Modern Real Time Operating Systems require reducing computational costs even though the microprocessors become more powerful each day. It is usual that Real Time Operating Systems for embedded systems have advance features to administrate the resources of the applications that…
Fecha:	2009-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

14.

Power aware routing in ad hoc wireless networks
Rishiwal, Vinay - Yadav, Mano - Bajapai, S. K. - Verma, S.

Formato:	Articulo, Articulo
Enlaces:	Development of the efficient power aware protocol is the need of today s adhoc networks. Although developing battery efficient systems that have low cost and complexity, remains a crucial issue. In order to facilitate communication within a mobile adhoc network,…
Fecha:	2009-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

15.

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

16.

A toolbox for the numerical study of linear dynamic rational expectations models
Oviedo, Pedro Marcelo

Formato:	Articulo, Articulo
Enlaces:	Se presenta una guía para resolver y estudiar modelos de expectativas racionales dinámicas lineales (LDRE). Luego de codificar el modelo, se aplica una function simple para log-linealizarlo; simular los efectos de series exógenas de shocks; calcular condiciones de momentos muestrales…
Fecha:	2009-06-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

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

18.

TCP Performance
Marrone, Luis Armando - Barbieri, Andrés - Robles, Matías

Formato:	Articulo, Articulo
Enlaces:	At present there are different TCP versions providing different performances. In this work the three of them: Reno, CUBIC and Vegas are considered. We simulate a WAN type network analyzing the throughput and performance of these TCP variants in order…
Fecha:	2013-03-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

19.

Analysis of suitable languages to teach Procedural Programming at the Universidad Nacional del Noroeste de la provincia de Buenos Aires
Osella Massa, Germán Leandro - Russo, Claudia Cecilia - Sarobe, Mónica - Pompei, Sabrina

Formato:	Articulo, Articulo
Enlaces:	Based on the need to update the language and tools used to teach Procedural Programming during the first year of computer science careers, a cross descriptive research was conducted by assessing different programming languages. The analysis involved a total of…
Fecha:	2013-03-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

Quality of Service in mobile ad hoc networks
Soufy, Khaled Abdullah Mohammed Al

Formato:	Articulo, Revision
Enlaces:	To support multimedia applications, it is desirable that an ad hoc network has a provision of Quality of Service (QoS). However, the provision of QoS in an ad hoc network is a challenging task due to its inherent…
Fecha:	2013-03-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

Guidelines for evaluating web accessibility, level A.
Acevedo, Juan J. - Gómez Solis, Laura - Mariño, Sonia Itatí - Godoy, Maria V.

Formato:	Articulo, Articulo
Enlaces:	The Web Accessibility Initiative (WAI) defines the guidelines to facilitate access for people with disabilities to ICT. This article presents a proposal to promote the unification and improvement of the works of two authors, combining the procedures and considerations after…
Fecha:	2013-10-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

22.

Data distribution in a wireless environment with migrating nodes
Johnston, David A. - McIntyre, David R. - Wolff, Francis G. - Papachristou, Christos A.

Formato:	Articulo, Articulo
Enlaces:	The introduction of mobile wireless devices brings unique challenges for distribution of data to many devices simultaneously. An optimizing multicast methodology called Probabilistic Multicast Trees (PMT) is extended to handle mobile wireless devices. We will show that PMT multiple tree…
Fecha:	2013-10-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

23.

A compiler technology based approach to simulation of basic forms of automata
Chakraborty, Pinaki

Formato:	Articulo, Revision
Enlaces:	This dissertation formalizes a comprehensive approach based on compiler technology [3-5] to simulate some basic forms of automata viz., finite accepters, finite transducers, pushdown accepters and Turing machines. These basic forms of automata are known for their simplicity and generality,…
Fecha:	2013-10-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

24.

Intel Xeon Phi Coprocessor High Performance Programming
More, Andres

Formato:	Articulo, Revision
Enlaces:	James Reinders (Chief Evangelist of Intel® Software at Intel) and Jim Jeffers (Principal Engineer at Intel) have gathered in this book the working knowledge of the people involved to prototype and productize the Intel® Xeon Phi coprocessor. This include…
Fecha:	2013-10-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

Memory disambiguation hardware: a review
Castro, Fernando - Chaver, Daniel - Piñuel, Luis - Prieto, Manuel - Tirado, Francisco

Formato:	Articulo, Articulo
Enlaces:	One of the main challenges of modern processor designs is the implementation of scalable and efficient mechanisms to detect memory access order violations as a result of out-of-order execution. Conventional structures performing this task are complex, inefficient and power-hungry. This…
Fecha:	2009-04-13
Recurso:	Unversidad Nacional de La Plata

Recurso libre

26.

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

27.

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

28.

Performance evaluation of applications for heterogeneous systems by means of performance Probes
Strube, Alexandre Otto

Formato:	Articulo, Revision
Enlaces:	This work describes a novel way to select the best computer node out of a pool of available potentially heterogeneous computing nodes for the execution of computational tasks. This is a very basic and diffi cult problem of computer science…
Fecha:	2012-04-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

Supply chain and logistics in national, international and governmental environment, concept and models
Palma, Ricardo R.

Formato:	Articulo, Revision
Enlaces:	The book is full of concepts and application models that can lead us to better understand how this paradigm shift application development of "Software Factory" can help SMEs. It shows how slowly is bypassing the traditional scheme based on the…
Fecha:	2012-04-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

30.

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

31.

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

32.

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

33.

A discrete event model for real time system simulation
Páez, Francisco E. - Urriza, José M. - Buckle, Carlos - Schorb, Lucas

Formato:	Articulo, Articulo
Enlaces:	In this work we present a discrete event model to design and implement a real time system simulator. This kind of software is useful to verify and evaluate algorithms and models, and to compute performance metrics. The discrete event model…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

34.

Ontologies models cohesiveness: a first assessment of integration
Vitturini, Mercedes - Fillottrani, Pablo Rubén

Formato:	Articulo, Articulo
Enlaces:	Multiple ontologies over shared domain has been produced in the geographic ontology-design ﬁeld for GIS environments. In geneal, each GIS solution has its own data model or application ontology. Ontology model mapping could provide a common language from which several…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

Introducción a las bases de datos: fundamentos y diseño, Introduction to databases: fundamentals and design
Bertone, Rodolfo Alfredo - Thomas, Pablo Javier

Formato:	Articulo, Revision
Enlaces:	The main purpose of this book is to present the contents of an introductory course in databases. In this regard, one can find a number of material validity and recognized different scopes. This work is developed under the guidelines that…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

36.

Relative signal strength coverage optimization in indoor and outdoor wireless LAN environments
Ekpenyong, Moses E. - Umoren, UduakObong M. - Bassey, Udoma J.

Formato:	Articulo, Articulo
Enlaces:	Fading and obstacles constitute major threats to effective quality of service (QoS) delivery in wireless local area network (WLAN) environments. In this contribution, we investigate the signal quality of indoor and outdoor WLANs over a defined coverage area. We present…
Fecha:	2013-03-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

37.

Development of multi-level system of steganography
Ogundele, Tunde Joseph - Adetunmbi, Adebayo Olusola

Formato:	Articulo, Articulo
Enlaces:	Internet world is characterized by many users among which are crackers and thieves. Hence, the need for a secured system to safely exchange confidential information among users across the web is required. Of such tool is steganography that simply hides…
Fecha:	2013-03-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

38.

Smart cameras
Leiva, Lucas - Acosta, Nelson

Formato:	Articulo, Revision
Enlaces:	The computer vision based applications market is increasing since several years ago. A lot of new application areas are incorporating this type of systems to solve particular problems. An emergent trend in last decades is incorporate dedicated devices to particular…
Fecha:	2013-03-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

39.

Tangible music composer for children
Francesconi, Juan Ignacio - Larrea, Martín Leonardo - Manresa-Yee, Cristina

Formato:	Articulo, Articulo
Enlaces:	Music education should start from an early age. Theories of child development and learning emphasize the importance of manipulating physical objects. Music learning and teaching has traditionally been carried out mainly by visual and auditory activities. With this in mind,…
Fecha:	2013-10-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

40.

MINIX4RT: Real-time Semaphores
Pessolani, Pablo Andrés

Formato:	Articulo, Articulo
Enlaces:	MINIX4RT is an extension of the well-known MINIX Operating System that adds Hard Real-Time services in a new microkernel but keeping backward compatibility with standard MINIX versions. Semaphores are the primitive synchronization and mutual exclusion mechanism in many operating systems,…
Fecha:	2009-04-13
Recurso:	Unversidad Nacional de La Plata

Recurso libre

41.

Nearest neighbor affinity scheduling in heterogeneous multi-core architectures
Sibai, Fadi N.

Formato:	Articulo, Articulo
Enlaces:	Asymmetric or heterogeneous multi-core (AMC) architectures have definite performance, performance per watt and fault tolerance advantages for a wide range of workloads. We propose a 16 core AMC architecture mixing simple and complex cores, and single and multiple thread cores…
Fecha:	2009-04-13
Recurso:	Unversidad Nacional de La Plata

Recurso libre

42.

Comparing marker definition algorithms for watershed segmentation in microscopy images
González, Mariela A. - Cuadrado, Teresita R. - Ballarín, Virginia Laura

Formato:	Articulo, Articulo
Enlaces:	Segmentation is often a critical step in image analysis. Microscope image components show great variability of shapes, sizes, intensities and textures. An inaccurate segmentation conditions the ulterior quantification and parameter measurement. The Watershed Transform is able to distinguish extremely complex…
Fecha:	2009-04-13
Recurso:	Unversidad Nacional de La Plata

Recurso libre

43.

Optimizing constrained problems through a T-Cell artificial immune system
Aragón, Victoria S. - Esquivel, Susana Cecilia - Coello Coello, Carlos

Formato:	Articulo, Articulo
Enlaces:	In this paper, we present a new model of an artificial immune system (AIS), based on the process that suffers the T-Cell, it is called T-Cell Model. It is used for solving constrained (numerical) optimization problems. The model operates on…
Fecha:	2009-04-13
Recurso:	Unversidad Nacional de La Plata

Recurso libre

44.

Throughput quantitative analysis of EDCA 802.11e in different scenarios
Perez, Santiago Cristobal - Facchini, Higinio Alberto - Mercado, Gustavo - Bisaro, Luis - Campos, Javier

Formato:	Articulo, Articulo
Enlaces:	This document presents a quantitative analysis of the direct and relative throughput of IEEE 802.11e. The global throughput of an 802.11e WLAN is determined by EDCA (Enhanced Distributed Channel Access) parameters, among other aspects, that are usually configured with predetermined…
Fecha:	2013-03-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

45.

Spanish sign language interpreter for mexican linguistics
Juan Barragán, Francisco Javier - Pérez Grana, José Arturo - Cervantes, Francisco - Schwarzblat y Katz, Morris - Olide Márquez, María Guadalupe - Pérez Sánchez, Ana Paola

Formato:	Articulo, Articulo
Enlaces:	We present here the first visual interface for a Mexican Spanish Sign Language translator on its first development stage: sign-writing recognition. The software was developed for the unique characteristics of Mexican linguistics and was designed in order to use sentences…
Fecha:	2013-03-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

46.

Knowledge extraction in large databases using adaptive strategies
Hasperué, Waldo

Formato:	Articulo, Revision
Enlaces:	The general objective of this thesis is the development of an adaptive technique for extracting knowledge in large databases. Nowadays, technology allows storing huge volumes of information. For this reason, the availability of techniques that allow, as a first stage,…
Fecha:	2013-03-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

47.

A semantic web model for the situational awareness of indigenous knowledge in healt
Bassey, Patience - Ntekop, Mfon

Formato:	Articulo, Articulo
Enlaces:	Most unsupervised indigenous knowledge (IK) are known to be very useful in combating critical health issues as well as being dangerous if the administration is abused. Despite the fact that these locally prepared herbal medicine are not encouraged to be…
Fecha:	2013-10-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

48.

High performance customizable architecture for machine vision applications
Leiva, Lucas - Acosta, Nelson

Formato:	Articulo, Articulo
Enlaces:	Vision based applications are present anywhere. A special market is industry, allowing to improve product quality and to reduce manufacturing costs. The vision systems applied to industries are known as machine vision systems. These systems must meet time constraints to…
Fecha:	2012-04-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

49.

Probabilistic multicast trees
Wolff, Francis G. - McIntyre, David R. - Johnston, David A.

Formato:	Articulo, Articulo
Enlaces:	Delivery of the same data content to many clients simultaneously over the Internet continues to be a challenging problem. Multicasting using a single tree structure for data distribution has been shown to be an effective methodology for distribution of data.…
Fecha:	2012-04-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

50.

Mobile-phone based patient compliance system for chronic illness care in Nigeria
Akinbode, O. P. - Longe, O. L. - Amosa, B.M.G.

Formato:	Articulo, Articulo
Enlaces:	To improve chronic illness care, patients must be empowered and engaged in health self-management. However, only half of all patients with chronic illness comply with treatment programme. The self-regulation model needs practical tools to help patients adopt this selfcentered approach…
Fecha:	2012-04-09
Recurso:	Unversidad Nacional de La Plata