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Aproximadamente 2046 registro(s) hasta el momento: (journal)

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Recurso libre

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

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

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

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

Application of the fuzzy logic in content-based image retrieval
Xiaoling, Wang - Kanglin, Xie

Formato:	Articulo, Articulo
Enlaces:	This paper imports the fuzzy logic into image retrieval to deal with the vagueness and ambiguity of human judgment of image similarity. Our retrieval system has the following properties: firstly adopting the fuzzy language variables to describe the similarity degree…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

An image retrieval system based on the feature of color differences among the edges of objects
Chan, Yung-Kuan - Chen, Chih-Ya

Formato:	Articulo, Articulo
Enlaces:	This paper focuses on color differences among the edges of objects in an image. The variations of colors among the objects in the image can depict the directions and simple geometric shapes of most objects in the image regardless of…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

High resolution images from low resolution video sequences
Cristina, Federico - Dapoto, Sebastián H. - Russo, Claudia Cecilia - Bria, Oscar N.

Formato:	Articulo, Articulo
Enlaces:	In some cases, low resolution of those images composing a video film hinders the proper visual interpretation of its data. A typical example of this is video obtained from security cameras. There thus exists the need to count with some…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

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

10.

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

11.

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

12.

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

13.

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

14.

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

15.

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

16.

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

17.

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

18.

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

19.

Manuscript Character Recognition
De Giusti, Marisa Raquel - Vila, María Marta - Villarreal, Gonzalo

Formato:	Articulo, Articulo
Enlaces:	The image recognizing process requires the identification of every logical object that compose every image, which first implies to recognize it as an object (segmentation) and then identify which object is, or at least which is the most likely one…
Fecha:	2008-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

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

21.

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

22.

<i>Computer architecture, design and performance</i> - Barry Wilkinson
Gallard, Raúl Hector

Formato:	Articulo, Revision
Enlaces:	El libro está orientado a las ténicas de diseño para mejorar la performance de sistemas de computación y especialmente hacia aquellas técnicas que involucren paralelismo.
Fecha:	2008-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

23.

Genetic algorithms + Data structure = Evolution programs - Zbigniew Michalewicz, Springer Verlag, third edition
Gallard, Raúl Hector

Formato:	Articulo, Revision
Enlaces:	El Profesor Michalewicz ofrece, en su libro, una motivante introducción al tema abarcando cada uno de los enfoques evolutivos aunque con preferencia hacia los algoritmos genéticos y sus extensiones: los programas evolutivos
Fecha:	2008-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

24.

<i>Digital signal processing. Principles, algorithms, and aplications</i>
Bria, Oscar N.

Formato:	Articulo, Revision
Enlaces:	This book presents the fundamentals of discrete-time signals, systems, algorithms and applications for students in electrical engineering or computer science. It covers both time-domain and frequency- domain methods for the analysis of linear, discrete-time systems.
Fecha:	2008-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

Why Workers Want Unions: The Role of Relative Wages and Job Characteristics
Saks, Daniel - Farber, Henry S.

Formato:	Working Paper
Enlaces:	Descripción completa.
Fecha:	2011-10-26
Recurso:	Universidad de Princenton

Recurso libre

26.

Government Wage Differentials
Smith, Sharon P.

Formato:	Working Paper
Enlaces:	Descripción completa.
Fecha:	2011-10-26
Recurso:	Universidad de Princenton

Recurso libre

27.

Preserving message integrity in dymamic process migration
Heymann Pignolo, Elisa - Tinetti, Fernando Gustavo - Luque Fadón, Emilio

Formato:	Articulo, Articulo
Enlaces:	Processor and network management have a great impact on the performance of Distributed Memory Parallel Computers. Dynamic Process Migration allows load balancing and communication balancing at execution time. Managing the communications involving the migrating process is one of the problems…
Fecha:	2004-05-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

28.

A high performance core for OSI management agents: implementation, simulation and performance evaluation
Rivalino, Matías Junior

Formato:	Articulo, Articulo
Enlaces:	This article presents a proposal of a multithreaded core for an OSI/ISO management agents including its modeling, simulation and performance evaluation. The proposed model i s compared against another one (unthreaded core) which is the c ommonly adopted model by…
Fecha:	2004-05-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

Feature extraction for an image retrieving scheme
Fuertes García, José Manuel - Lucena López, Manuel José - Perez de la Blanca Capilla, Nicolás - Fernández Valdivia, Joaquín

Formato:	Articulo, Articulo
Enlaces:	In this paper we present two basic modules whithin the designed scheme for retrieving images of a database from the object colour and shape in the scenes. On the one hand, we desing a new method to detect edges in…
Fecha:	2004-05-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

30.

JPEG with quadtree adaptive partitioning
Russo, Claudia C. - Ramón, Hugo Dionisio - De Giusti, Armando Eduardo - Flores, Raúl

Formato:	Articulo, Articulo
Enlaces:	In this paper two images compression techniques with loss based on the method used by the compression Standard Joint Photographic Experts Groups (JPEG) and on the Quadtree adaptive partitioning method are presented and compared, and the loss produced studied. The…
Fecha:	2004-05-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

Parallel recognition and classification of objects
Felice, Rodrigo - Ruscitti, Fernando - Naiouf, Marcelo - De Giusti, Armando Eduardo

Formato:	Articulo, Articulo
Enlaces:	The development of parallel algorithms for an automatic recognition and classification of objects from an industrial line (either production or packaging) is presented. This kind of problem introduces a temporal restriction on images processing, a parallel resolution being therefore required.…
Fecha:	2004-05-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

32.

Communion: a new strategy form memory management in high-performance computer
Toshimi Midorikawa, Edson - Matsumoto Sato, Liria - Zuffo, João Antônio

Formato:	Articulo, Articulo
Enlaces:	Modern computers present a big gap between peak performance and sustained performance. There are many reasons for this situation, but mainly involving an inefficient usage of computational resources. Nowadays the memory system is the most critical component because of its…
Fecha:	2004-05-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

33.

A parallel approach for backpropagation learning of neural networks
Crespo, María Liz - Piccoli, María Fabiana - Printista, Alicia Marcela - Gallard, Raúl Hector

Formato:	Articulo, Articulo
Enlaces:	Fast response, storage efficiency, fault tolerance and graceful degradation in face of scarce or spurious inputs make neural networks appropiate tools for Intelligent Computer Systems. But on the other hand, learning algorithms for neural networks involve CPU intensive processing and…
Fecha:	2004-05-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

34.

Multiplexing real time video services
Simón, María - Pechiar, Juan

Formato:	Articulo, Articulo
Enlaces:	Statistical Bit Rate (SBR) transfer capability is considered a good option for supporting Variable Bit Rate (VBR) services. However, its study is somewhat in lag compared with Deterministic Bit Rate (DBR) or Available Bit Rate (ABR) capabilities. The definition of…
Fecha:	2004-05-14
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

Análise da qualidade das propagandas de medicamentos em revistas médicas, Quality of drug advertisements in medical joumals
Dal-Pizzol, Felipe - Silva Dal Pizzol, Tatiane da - Schenkel, Eloir Paulo

Formato:	Articulo, Contribucion a revista
Enlaces:	Foram analisadas oito revistas médicas latino-americanas e oito revistas de circulação internacional, sendo observados os ítens, conforme os Critérios Eticos para Promoção de Medicamentos da OMS: declaração do nome genérico, presença de posologia, composição, reações adversas, precauções, interações medicamentosas e…
Fecha:	2009-01-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

36.

Alternative strategies for asynchronous migration-controlled schemes in parallel genetic algorithm
Ochoa, Claudio - Gallard, Raúl Hector

Formato:	Articulo, Articulo
Enlaces:	Migration of individuals allows a fruitful i nteraction between subpopulations in the island model, a well known distributed approach for evolutionary computing, where separate subpopulations evolve in parallel. This model is well suited for a distributed environment running a Single…
Fecha:	2004-05-13
Recurso:	Unversidad Nacional de La Plata

Recurso libre

37.

Non-Parametric Estimates of the Labor Supply Effects of Negative Income Tax Programs
Ashenfelter, Orley

Formato:	Working Paper
Enlaces:	This paper reports nonparametric estimates of the effect of labor supply behavior on the payments to families enrolled in the Seattle/Denver Income Maintenance Experiment. The randomized assignment of families to the treatment groups in this experiment was designed to permit…
Fecha:	2011-10-26
Recurso:	Universidad de Princenton

Recurso libre

38.

Split Sample Instrumental Variables
Krueger, Alan B. - Angrist, Joshua

Formato:	Working Paper
Enlaces:	Instrumental Variables (IV) estimates tend to be biased in the same direction as Ordinary Least Squares (OLS) in ﬁnite samples if the instruments are weak. To address this problem we propose a new IV estimator which we call Split Sample…
Fecha:	2011-10-26
Recurso:	Universidad de Princenton

Recurso libre

39.

The Extent of Measurement Error in Longitudinal Earnings Data
Krueger, Alan B. - Bound, John

Formato:	Working Paper
Enlaces:	This paper examines the properties and prevalence of measurement error in longitudinal earnings data. The analysis compares Current Population Survey data to administrative Social Security payroll tax records for a sample of heads of households over two years. In contrast
Fecha:	2011-10-26
Recurso:	Universidad de Princenton

Recurso libre

40.

Immigrant Inflows, Native Outflows, and the Local Labor Market Impacts of Higher Immigration
Card, David

Formato:	Working Paper
Enlaces:	More than one million new immigrants currently enter the United States every year. In this paper I use 1990 Census data to study the effects of immigrant inﬂows on the local labor market opportunities of natives and older immigrants. I…
Fecha:	2011-10-26
Recurso:	Universidad de Princenton

Recurso libre

41.

Les diplômés – no 397, automne 1999
Association des diplômés de l’Université de Montréal

Formato:	Revue / Journal
Enlaces:	Pour toute demande de reproduction de contenu se trouvant dans cette publication, communiquer avec l’Association des diplômés de l’UdeM.
Fecha:	2011-11-03
Recurso:	Université de Montreal

Recurso libre

42.

The role of an experimental component in the analytic classrooms of minority-language students /
Fazio, Lucy, 1947-

Formato:	Electronic Thesis or Dissertation
Enlaces:	This study, undertaken in the classrooms of minority-language students in French-language schools in Montreal, aims to test Stern's (1990, 1992) proposal for integrating analytic and experiential teaching strategies in second language pedagogy. A related objective seeks to establish the pedagogical…
Fecha:	1999
Recurso:	McGill University - MCGILL

Recurso libre

43.

Scatter factors and peak scatter factors for cobalt-60, 6 MV, 10, and 18 MV photon beams
Abdel-Rahman, Wamied.

Formato:	Electronic Thesis or Dissertation
Enlaces:	The aim of external beam radiotherapy is to deliver a prescribed dose to a target volume accurately and uniformly while sparing the surrounding healthy tissue. In radiation dosimetry calculations, many functions are employed to achieve this goal, and the Peak…
Fecha:	1999
Recurso:	McGill University - MCGILL

Recurso libre

44.

Vaccination against Taenia solium cysticercosis in pigs using native and recombinant oncosphere antigens
Plancarte, A - Flisser, A - Gauci, CG - Lightowlers, MW

Formato:	Article
Enlaces:	Pigs were immunised with antigens derived from Taenia solium oncospheres or with a pool of three recombinant antigens from Taenia ovis, and subsequently challenged with T. solium eggs, The native oncosphere antigens induced 83% protection against viable, and 89% protection…
Fecha:	2011-12-07
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

45.

Throughput analysis for code division multiple accessing of the spread spectrum channel

Formato:
Enlaces:	Joseph Y.N. Hui., Bibliography: p. [5], "September 1984." Reprinted from IEEE Journal on Selected Areas in Communications, vol. SAC-2, no.4, July 1984., "... supported by the National Science Foundation under Grant NSF/ECS 78-19880..." "... Advanced Project Agency under Grant ONR-N00014-75-C1183."
Fecha:	2002-06-21
Recurso:	MIT

Recurso libre

46.

Multiple accessing for the collision channel without feedback

Formato:
Enlaces:	Joseph Y.N. Hui., Bibliography: p. 582., "September 1984." Reprinted from IEEE Journal on Selected Areas in Communications, vol. SAC-2, no.4, July 1984., "...National Science Foundation... Grant NSF/ECS-79-19880." "...Advanced Research Project Agency... Grant ONR/N00014-75-C1183."
Fecha:	2002-06-21
Recurso:	MIT

Recurso libre

47.

Changing Stock Market Response to Announcement of Job Loss: Evidence from 1970-1997
Hallock, Kevin

Formato:	Working Paper
Enlaces:	We report preliminary results of an analysis of the reaction of stock prices to announcements of reductions in force (RIFs) using a large sample of such announcements during the 1970-1997 period collected from the Wall Street Journal index. We ﬁnd…
Fecha:	2011-10-26
Recurso:	Universidad de Princenton

Recurso libre

48.

Are Prices Higher For the Poor in New York City?
Richburg Hayes, Lashawn

Formato:	Working Paper
Enlaces:	Despite earlier evidence to the contrary, recent inquiries appear to reach a consensus that the poor pay more for food. However, these studies utilize samples drawn on the basis of prior knowledge of unfair pricing strategies, proximity of volunteer surveyors,…
Fecha:	2011-10-26
Recurso:	Universidad de Princenton

Recurso libre

49.

Letter from San José: The internet global summit.
Cisler, Steve

Formato:
Enlaces:	Publicado en: First Monday. Peer-Reviewed Journal on the Internet. Volume 4 Number 7 - July 5th 1999. http://www.firstmonday.org, cisler@pobox.com, Nivel monográfico
Fecha:	2006-07-26
Recurso:	Universidad de los Andes Venezuela

Recurso libre

50.

Have Employment Reductions Become Good News for Shareholders? The Effect of Job Loss Announcements on Stock Prices, 1970-97
Farber, Henry S. - Hallock, Kevin

Formato:	Working Paper
Enlaces:	We study the reaction of stock prices to announcements of reductions in force (RIFs) using a sample of nearly 3878 such announcements in 1176 large ﬁrms during the 1970-97 period collected from the Wall Street Journal Index. We note that,…
Fecha:	2011-10-26
Recurso:	Universidad de Princenton