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Aproximadamente 472 registro(s) hasta el momento: (datos)

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Recurso libre

Environment for the simulation of different ACP and error recovery in Distributed Data Bases
Ruscuni, Sebastián - Bertone, Rodolfo Alfredo

Formato:	Articulo, Articulo
Enlaces:	This paper presents an evolution of a simulation environment where situations in which a DDB should maintain data integrity are modeled and implemented. These situations include failures taking place during transactions, and the focus is mainly on the utilization and…
Fecha:	2004-03-31
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

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

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

Recurso libre

Using boolean circuits for the parallel computation of queries
Gagliardi, Edilma Olinda - Herrera, Norma Edith - Reyes, Nora Susana - Turull Torres, José María

Formato:	Articulo, Articulo
Enlaces:	We present partial results of a research project in which we use boolean circuits as a parallel computation model for the expression of queries to relational databases. For that purpose, we use the well-known equivalence between First Order Logic (FO)…
Fecha:	2004-03-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

ODE: ontology-based software development environment
Falbo, Ricardo de Almeida - Natali, Ana Candida Cruz - Mian, Paula Gomes - Bertollo, Gleidson - Ruy, Fabiano Borges

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Software tools processing partially common set of data should share an understanding of what these data mean. Since ontologies have been used to express formally a shared understanding of information, we argue that they can be used to improve integration…
Fecha:	2012-10-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

A hybrid data structure for searching in metric spaces
Herrera, Norma Edith - Reyes, Nora Susana - Chávez, Edgar

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The concept of “approximate” searching has applications in a vast number of fields. Some examples are non-traditional databases (e. g. storing images, fingerprints or audio clips, where the concept of exact search is of no use and we search instead…
Fecha:	2012-09-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

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

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

Recurso libre

The Phycology.Net
Bayerisches Landesamt für Wasserwirtschaft - Botanische Staatssammlung München - University of Bayreuth Department of Mycology

Formato:	Biblioteca virtual
Enlaces:	Descripción completa.
Fecha:	2012-11-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

The use of medicinal plants by the cultural descendants of African people in Brazil
Albuquerque, Ulysses Paulino de

Formato:	Articulo, Articulo
Enlaces:	Son presentados datos etnobotánicos sobre el uso de plantas por los herederos culturales de los africanos en Brasil. El trabajo de campo fue conducido en la ciudad de Recife, estado de Pernambuco. Se informan los nombres comunes y científicos y…
Fecha:	2008-12-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

10.

Identifying cognitive aspects to improve business process reengineering
Martín, Adriana - Cechich, Alejandra

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Knowledge-intensive processes are widely used to recover from errors, handle exceptional cases and complaints, and to improve or adapt a process itself. In this context, evolved Business-Process Reengineering (BPR) techniques are changing to give some answers to this reality. In…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

11.

Using fuzzy sets to analyse personal preferences on groupware tools
Aranda, Gabriela N. - Cechich, Alejandra - Vizcaíno, Aurora - Castro-Schez, José J.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	When stakeholders are geographically distributed communication presents new challenges for software engineering community. In order to improve communication between stakeholders, we have previously proposed to apply learning style models to characterise the way people interact. In this work we enhance…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

12.

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

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This document describes a research and development project - Semantic Web and Cooperative Problem Solving for Online Communities of Practice. The aim of the project is to build a system supporting Cooperative Problem Solving within the framework of online Communities…
Fecha:	2012-09-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

13.

A functional approach for in line analytical processing
Necco, Claudia Mónica - Quintas, Luis - Nuno Olivera, J.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This paper describes an approach to On Line Analytical Processing (OLAP), expresed in the declarative programming paradigm. We define a collection of functions that capture some of the functionality currently provided by multidimensional database product. This is done by defining…
Fecha:	2012-10-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

14.

Modern database management VI Edition. Jeffrey A. Hoffer, Mary B. Prescott, Fred R. McFadden Prentice Hall, Upper Saddle River, NJ, 2002
Bertone, Rodolfo Alfredo

Formato:	Articulo, Revision
Enlaces:	This book provides an excellent foundation for the principles of database and data management. It explains some of the more difficult concepts fairly well. The book is meant for an introductory course in database management which is usually required as…
Fecha:	2008-10-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

15.

Applying an ontology on data integration
Buccella, Agustina - Cechich, Alejandra - Brisaboa, Nieves R.

Formato:	Objeto de conferencia, Objeto de conferencia
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. When integrating data, several issues must be addressed. Here, we focus on the problem…
Fecha:	2012-09-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

16.

Evolution of product line architectures
Amaolo, Marcelo Paulo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Product-line architectures, i.e. a software architecture and component set shared by a family of products, represents a promising approach to achieving reuse of software. Several companies are initiating or have recently adopted a product-line architecture. However, little experience is available…
Fecha:	2012-09-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

Selecting COTS components: a comparative study on E-Payment systems
Cechich, Alejandra - Taryano, Karina

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Using COTS software promises faster time-to-market, which can yield substantial advantages over competitors with regards to earlier placement of a new product on a market. At the same time, component-based software introduces risks, such as unknown quality properties of the…
Fecha:	2012-10-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

An ontological approach to federated data integration
Buccella, Agustina - Cechich, Alejandra - Brisaboa, Nieves R.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	During the last years a lot of projects and lines of research have emerged from different proposals trying to find the best way to reach data integration. Two powerful techniques have appeared separately – ontology and contextual information – in…
Fecha:	2012-10-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

19.

Mapeando modelos conceituais dimensionais OO para modelos lógicos dimensionais relacionais
Carvalho, Rogerio Atem de - Tanaka, Asterio K. - Colonese, Giovanni

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The star model, broadly used in data warehouse modeling, is a logical model, so its representation is strongly dependent on the database technology used for its implementation, usually relational. The method recommended for designing a dimensional system would be the…
Fecha:	2012-10-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

Classifying groupware tools to improve communication in geographically distributed elicitation
Martín, Adriana - Martinez, Claudia - Martínez Carod, Nadina - Aranda, Gabriela N. - Cechich, Alejandra

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In a scene where stakeholders are geographically distributed, communication presents new challenges for research areas. Considering the characteristics of interpersonal communication and the virtual area where it is carried out, the importance of applying interdisciplinary approaches, such as Cognitive Engineering,…
Fecha:	2012-10-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

Animal Base
Deutsche Forschungsgemeinschaft DFG

Formato:	Repositorio
Enlaces:	Descripción completa.
Fecha:	2012-11-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

22.

IRRI Library: International Rice Research Institute
The International Rice Research Intitute Fiipinas

Formato:	Biblioteca virtual
Enlaces:	Descripción completa.
Fecha:	2012-11-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

23.

Modeling public business processes with interaction protocols in business-to-business relationships
Villareal, Pablo - Chiotti, Omar Juan Alfredo - Salomone, Enrique

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Today, one of the main challenges of the Business-to-Business (B2B) E-Commerce solutions is to improve the business processes that organizations carry out with their suppliers and customers. B2B relationships require the management of public business processes, which span the organizational…
Fecha:	2012-10-24
Recurso:	Unversidad Nacional de La Plata

Recurso libre

24.

Classification rules obtained from dynamic self-organizing maps
Hasperué, Waldo - Lanzarini, Laura Cristina

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	La obtención de conocimiento a partir de la información existente es un proceso no trivial que consiste en identificar patrones válidos, novedosos, potencialmente útiles y comprensibles a partir de los datos disponibles. La Minería de Datos es el área de…
Fecha:	2012-10-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

Integrating federated information sources through the use of ontologies
Buccella, Agustina - Cechich, Alejandra - Penabad, Miguel R. - Rodriguez, Francisco J. - Brisaboa, Nieves R.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Ontologies serve as a mean to establish a conceptually concise basis for communicating knowledge for many purposes. Within the information integration area, ontologies are useful to solve heterogeneity problems. They provide a set of knowledge terms, including the vocabulary, the…
Fecha:	2012-09-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

26.

Taking advantages of ontology and contexts to determine similarity of data
Buccella, Agustina - Cechich, Alejandra - Rodríguez Brisaboa, Nieves

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Data integration is the process of unifying data sharing some common semantics but are originated from unrelated sources. In our work we consider these sources are autonomous, heterogeneous and they are physically distributed. These three characteristics make the integration task…
Fecha:	2012-10-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

27.

EMTPL and its relation to first order logic
Cobo, María Laura - Falappa, Marcelo Alejandro

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Time and change are notions that seems unavoidable in some areas of work and investigation, languages that can deal with these notions are necessary. At the same time, methods for a proper time handling are quite complex, mainly because problem’s…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

28.

An extension of ArgoUML for the incorporation of profiles
Pryor, Jane - Marcos, Claudia A. - Belloni, Edgardo A.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The Unified Modeling Language (UML) is a language for visualizing, specifying, constructing, and documenting the artifacts of a software-intensive system. UML supports the most typical software modeling problems; however, due to the diversity of software development domains, there may be…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

Fuzzy prolog with default knowledge
Vaucheret, Claudio A.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In omplete information is a problem in many aspe ts of a tual environments. Further- more, in many s enarios the knowledge is not represented in a risp way. It is ommon to nd fuzzy on epts or problems with…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

30.

Characterizing semantic web services
Moyano, Marcelo - Buccella, Agustina - Cechich, Alejandra - Estevez, Elsa Clara

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Semantic Web is an extension of the current web in which data contained in the web documents are machine-understandable. On the other hand, Web Services provide a new model of the web in which sites exchange dynamic information on demand.
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

Building dynamic WAP applications using UWE
Soto, Ricardo - Rodríguez, Nibaldo - Palma, Wenceslao

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The great advance of the communications and the importance gained by the mobile systems have increased the development of WAP (Wireless Application Protocol) applications, nevertheless at the present time do not exist methodologies specifically designed for the WAP applications development…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

32.

Argentina s crises and the poor, 1995-2002
Cruces, Guillermo - Wodon, Quentin

Formato:	Articulo, Articulo
Enlaces:	Este trabajo documenta el impacto de las recientes crisis en Argentina sobre diferentes aspectos de la pobreza, con particular atención en la crisis económica de 2002. Discutimos la metodología de medición de pobreza en Argentina y utilizamos una regla simple…
Fecha:	2009-07-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

33.

Towards the verification of RAISE specifications through Model Checking
Perna, Juan Ignacio - George, Chris W.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Ensuring the correctness of a given software component has become a crucial aspect in Software Engineering and the Model Checking technique provides a fully automated way to achieve this goal. In particular, the usage of Model Checking in formal languages…
Fecha:	2012-09-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

34.

Messaging infrastructure for Electronic Government: background, rationale, objectives
Estevez, Elsa Clara - Janowski, Thomas - Fillottrani, Pablo Rubén

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Electronic Government applications aim to deliver efficient, seamless, customer-focused services to the public using various distribution channels. One of challenges in building such applications is the requirement to rely upon preexisting, often heterogeneous government applications. In order to enable communication…
Fecha:	2012-09-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

Assessing the completeness of biodiversity inventories: an example from Bañados del Este Biosphere Reserve, Uruguay, Evaluando cuán exhaustivos son los inventarios de biodiversidad: un ejemplo de la Reserva de la Biosfera de Bañados del Este, Uruguay
Soutullo Bugallo, Álvaro Alberto

Formato:	info:eu-repo/semantics/article
Enlaces:	Se evaluó el rendimiento de cinco índices no paramétricos de riqueza de especies (ICE, Jack1, Jack2, Chao2 y Bootstrap) utilizando inventarios disponibles para tres grupos de vertebrados dentro de la Reserva de Biósfera Bañados del Este, Uruguay. Los datos utilizados…
Fecha:	2008-06-06
Recurso:	RUA Docencia

Recurso libre

36.

Taxonomic evidence applying algorithms of intelligent data mining
Perichinsky, Gregorio - Servente, Magdalena - Servetto, Arturo Carlos - García Martínez, Ramón - Orellana, Rosa Beatriz - Plastino, Ángel Luis

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Numerical Taxonomy aims to group in clusters, using so-called structure analysis of operational taxonomic units (OTUs or taxons or taxa) through numerical methods. Clusters that consitute families was the purpose of this series of last projects. Structural analysis, based on…
Fecha:	2012-09-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

37.

A very early estimation of software development time and effort using neural networks
Luna, Carlos Daniel - Segovia, Javier - Salvetto, Pedro F. - Martínez, Milton F.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In spite of years of research and development, formal structured estimation of time and effort required to develop a Management Information System (MIS) is still an open problem. Usual estimation techniques applied by now are supported by the not so…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

38.

Fully dynamic and memory-adaptative spatial approximation trees
Arroyuelo, Diego - Navarro, Gonzalo - Reyes, Nora Susana

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Hybrid dynamic spatial approximation trees are recently proposed data structures for searching in metric spaces, based on combining the concepts of spatial approximation and pivot based algorithms. These data structures are hybrid schemes, with the full features of dynamic spatial…
Fecha:	2012-10-24
Recurso:	Unversidad Nacional de La Plata

Recurso libre

39.

Phrase break prediction : a comparative study
Agüero, Pablo Daniel - Bonafonte Cávez, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	Este artículo presenta un estudio comparado de varios métodos de predicción de pausas, usando el mismo corpus etiquetado. Algunos métodos propuestos por otras publicaciones sobre el tema son probados, combinando algunas técnicas previas para aprovechar sus principales ventajas. Un nuevo…
Fecha:	2007-09-05
Recurso:	RUA Docencia

Recurso libre

40.

The software architecture role in agile methodologies
Anacleto, Valerio Adrián

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The software architecture role in agile methodologies is not sufficiently documented or formalized by means of a process consistent with the philosophy. The current work’s contributions are: 1) Defining guidelines to implement architecture practices in an agile way and so…
Fecha:	2012-10-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

41.

Nineteen sixties history of data base management
Olle, T. William

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Data base management evolved during the sixties and seventies. The evolution period was protracted. Many driving forces impacted the evolution and it is the aim of this paper to analyze these driving forces (some technical and some political) and to…
Fecha:	2012-11-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

42.

Data modeling dealing with uncertainty in fuzzy logic
Urrutia Sepúlveda, Angélica - Galindo, José - Jiménez, Leoncio - Piattini Velthuis, Mario

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This paper shows models of data description that incorporate uncertainty like models of data extension EER, IFO among others. These database modeling tools are compared with the pattern FuzzyEER proposed by us, which is an extension of the EER model…
Fecha:	2012-11-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

43.

A Methodology for Vertically Partitioning in a Multi-Relation Database Environment
Gorla, Narasimhaiah

Formato:	Articulo, Articulo
Enlaces:	Vertical partitioning, in which attributes of a relation are assigned to partitions, is aimed at improving database performance. We extend previous research that is based on a single relation to multi-relation database environment, by including referential integrity constraints, access time
Fecha:	2008-05-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

44.

Buckets inverted lists for a search engine with BSP
Gil Costa, Graciela Verónica - Printista, Alicia Marcela - Marin Cahiuan, Juan Mauricio

Formato:	Articulo, Articulo
Enlaces:	Most information in science, engineering and business has been recorded in form of text. This information can be found online in the World-Wide-Web. One of the major tools to support information access are the search engines which usually use information…
Fecha:	2008-05-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

45.

Dynamic selection of suitable pivots for similarity search in metric spaces
Deco, Claudia - Salvetti, Mariano - Reyes, Nora Susana - Bender, Cristina

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This paper presents a data structure based on Sparse Spatial Selection (SSS) for similarity searching. An algorithm that tries periodically to adjust pivots to the use of database index is presented. This index is dynamic. In this way, it is…
Fecha:	2012-09-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

46.

Adaptive Ttwo-phase spatial association rules mining method
Lee, Chin-Feng - Chen, Mei-Hsiu

Formato:	Articulo, Articulo
Enlaces:	Since huge amounts of spatial data can be easily collected from various applications, ranging from remote sensing technology to geographical information system, the extraction and comprehension of spatial knowledge is a more and more important task. Many excellent studies on…
Fecha:	2008-05-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

47.

Data bases and discrete event simulation
Boubetra, Abdelhak - Belouadah, Hocine - Mouhoub, Nassreddine

Formato:	Articulo, Articulo
Enlaces:	This paper is an attempt to define how a specific data structure might be used to store, in a persistent manner, temporal information during a computer simulation. In particular, it considers the sort of temporal information generated during a discrete…
Fecha:	2008-05-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

48.

Software process improvement behavior of small and medium organizations in Argentina
Colla, Pedro E. - Montagna, Jorge Marcelo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Este artículo reporta el trabajo de investigación realizado en base a datos extraídos de la Encuesta Anual realizada por la CESSI durante el año 2007 entre organizaciones dedicadas al desarrollo de Software en Argentina. Si bien la temática de mejora…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

49.

International trade transmission channel of a local crisis: a simple model
Cerdeiro, Diego - Wirkierman, Ariel

Formato:	Articulo, Articulo
Enlaces:	Proponemos un modelo de interdependencia general lineal para la economía mundial, y utilizamos datos de la División Estadística de las Naciones Unidas para estimar sus parámetros. Esto nos permite evaluar la propagación de un shock exógeno a los gastos autónomos…
Fecha:	2009-08-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

50.

Data warehouse design with UML
Luján Mora, Sergio

Formato:	info:eu-repo/semantics/doctoralThesis
Enlaces:	Descripción completa.
Fecha:	2009-07-07
Recurso:	RUA Docencia