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Aproximadamente 36 registro(s) hasta el momento: (datos)

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Recurso libre

Ontologies for the semantic web
Vallés, María Clara - Fillottrani, Pablo Rubén

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The Semantic Web attempts to reach a state in the future where everything on the Web will no longer be only machine-readable, but also machine-understandable. An ontology is an explicit specification of a conceptualization. A conceptualization is an abstract, simplified…
Fecha:	2012-09-07
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

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

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

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

The multi-agent system architecture in SEWASIE
Fillottrani, Pablo Rubén

Formato:	Articulo, Articulo
Enlaces:	We describe the design, implementation and deployment of the multi-level agent-based system architecture developed for the SEWASIE project. The aim of the system is to help the user in querying heterogeneous data sources which are integrated by means of ontologies.…
Fecha:	2008-05-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

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

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

10.

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

11.

Tool support for verifying applications using object-oriented patterns
Aranda, Gabriela N. - Flores, Andrés P. - Buccella, Agustina - Reynoso, Luis A.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Applying design patterns is considered a helpful technique for designing software systems. Patterns description, however, results not sufficiently precise providing a weak understanding and making it difficult to be certain when a pattern is being used correctly. We have formally…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

12.

Methods for measurement-based COTS assessments and selection
Cechich, Alejandra - Piattini Velthuis, Mario

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	During recent years, new software engineering paradigms like component-based software engineering and COTS-based development have emerged. Both paradigms are concerned with reuse and customisation of existing components. The use of COTS software has become more and more important in state-of-the-art…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

13.

An extension to EMTPL
Cobo, María Laura - Falappa, Marcelo Alejandro

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The development of languages allowing a proper handling of time is important in many areas of computer science because the capability to deal with the notions of change and time are essential to solve their problems. In the development of…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

14.

A framework for defining and checking constraints in requirement gathering and definition
Gómez, Rodolfo - Fillottrani, Pablo Rubén

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Requirements capture user needs about a system [KG99]. They stand for those functional and nonfunctional attributes the system must posses to be considered correct. Requirements also dictate how the system should respond to user interaction. Therefore, they play a very…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

15.

Moodelling of processes and formal methods
Riesco, Daniel Eduardo - Montejano, Germán Antonio - Uzal, Roberto

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	We proposed her a technique, which can be employed within the methodology know as process reengineering. This technique was applied in a government environment, which included an Information System and Geographical Information System, developed with financial support from The World…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

16.

A data mining approach to computational taxonomy
Perichinsky, Gregorio - García Martínez, Ramón

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This study investigates an approach of knowledge discovery and data mining in insufficient databases. An application of Computational Taxonomy analysis demonstrates that the approach is effective in such a data mining process. The approach is characterized by the use ot…
Fecha:	2012-10-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

Using web-site QEM to measure the quality of sites
Olsina Santos, Luis Antonio - Lafuente, Guillermo Javier - Lafuente, Gustavo - Rossi, Gustavo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In this position paper, the main steps to measure and evaluate quantitatively the quality of sites are shown. Besides, some specific models, criteria and procedures to apply in these activities are discussed by quoting case studies already performed (e.g., in…
Fecha:	2012-10-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

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

19.

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

20.

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

21.

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

22.

Design of a service-oriented architecture for federated systems
Calegari, Daniel - Viera, Marcos - Motz, Regina

Formato:	Articulo, Articulo
Enlaces:	A Federated System is a collection of independent, cooperative, possibly heterogeneous and autonomous computer systems (usually database systems) which allows sharing all or some of its data. A Service-Oriented Architecture is an application architecture whose functionalities are defined as independent…
Fecha:	2008-05-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

23.

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

24.

Formal specifications in component-based development
Estevez, Elsa Clara - Fillottrani, Pablo Rubén

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Software engineering has entered a new era, the Internet and its associated technologies require a different conceptual framework for building and understanding software solutions. Users ask to develop applications more rapidly, and software engineers need to ensamble systems from preexisting…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

A systematic approach to generate test cases based on combinations of information
Sánchez, Marisa - Felder, Miguel

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Software based systems incrementally provide critical services to users. Mobile telephone systems, for example, are used in circumstances in which the malfunctioning may have disastrous consequences. During the last years, software has been incorporated in devices used in daily life,…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

26.

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

27.

Digital processing of in situ hybridization images: Identification and spatial allocation of specific labels
González, Mariela A. - Rapacioli, Melina - Ballarín, Virginia Laura - Fiszer de Plazas, Sara - Flores, Vladimir

Formato:	Articulo, Articulo
Enlaces:	In situ hybridization (ISH) method allows to reveal specific genes expression, identify specific cell types and detect areas or tissues, displaying differential gene expression. This work describes a standardized procedure of digital image processing that allows detailed analyses of ISH…
Fecha:	2008-05-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

28.

Estudio preliminar del efecto anti-ulcerogénico del extrato hidroalcólico de las hojas de Aster squamatus en varios modelos de úlcera en ratas, Preliminary studies of anti-ulcerogenic effect of Aster squamatus leaves hydroalcoholic extract on various ulcer models in rats
Ghedini, Paulo César - Almeida, Cybele Esteves - Burger, Marilise Escobar - Bauermann, Liliane de Freitas - Magni, Danieli Valnes - Borgmann, Silvia Helena Miollo

Formato:	Articulo, Articulo
Enlaces:	Se comprobó el efecto antiulcerogénico del extracto crudo hidroalcólico (70%) de las hojas de Aster squamatus (ECH) frente a úlceras inducidas por etanol, indometacina y estrés provocado por el frío. El ECH (500 y 1000mg/kg) redujo el índice de la…
Fecha:	2004-05-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

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

30.

Project line: formally specifying the domain of balanced scorecard
Montejano, Germán Antonio - Uzal, Roberto - Riesco, Daniel Eduardo - Dasso, Aristides - Funes, Ana

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In today’s world, in both the public or private organizations, there exists the problem that the organizations have to create value, are changing, but the tools to measure them are not. On the other hand, in the current economy, the…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

Spectra in taxonomic evidence in databases III
Plastino, Ángel Luis - Orellana, Rosa Beatriz - Perichinsky, Gregorio

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. These clusters constitute families. Structural analysis, based on their phenotypic characteristics, exhibits the relationships, in terms of…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

32.

Integrated environment of systems automated engineering
Servetto, Arturo Carlos - García Martínez, Ramón - Perichinsky, Gregorio

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The Standardization of a development process for systems of medium complexity, entirely supported by an integrated development environment, could mean a double contribution to the industry of systems development. On the one hand it would contribute to the reduction of…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

33.

Análisis cinético de la descomposición térmica del Efavirenz y estudios de compatibilidad con excipientes seleccionados, Kinetic analysis of the thermal decomposition of Efavirenz and compatibility studies with selected excipients
Viana, Osnir de Sá - Araújo, Adriano A. S. - Simões, Rodrigo A. - Soares Sobrinho, José L. - Matos, Charlene R. S. - Grangeiro Júnior, Severino - Moreira de Lima, Cláudio - Rolim Neto, Pedró José

Formato:	Articulo, Articulo
Enlaces:	En el presente trabajo se estudió la descomposición térmica del efavirenz (EFZ), un no-nucleótido que es inhibidor de la transcriptasa reversa de prolongada vida media, utilizando calorimetría diferencial de barrido (DSC) y termogravimetría/termogravimetría derivada (TG/DTG). Se empleó el método no…
Fecha:	2009-05-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

34.

Perfil farmacocinético plasmático y biodisponibilidad de Gatifloxacina en ratas, Pharmacokinetic plasma profile and bioavailability evaluation of Gatifloxacin in rats
Tasso, Leandro - Bettoni, Clarissa C. - Dalla Costa, Teresa

Formato:	Articulo, Comunicacion
Enlaces:	Aunque la gatifloxacina ha sido usada en la clínica por algunos años, no son frecuentes los estudios pre-clínicos de este antibió- tico. El objetivo de este trabajo fue determinar los parámetros farmacocinéticos en plasma de la gatifloxacina en ratas después…
Fecha:	2009-05-14
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

Antifouling effect of two saturated copper coatings applied on carbon steel structures, Efecto antifouling de dos cubiertas saturadas de cobre aplicadas sobre estructuras de acero al carbono
Guiamet, Patricia - Saravia, Sandra Gómez de

Formato:	Articulo, Articulo
Enlaces:	Biofouling is the colonization of man-made substrata by sessile organisms. The aim of this paper is to evaluate the performance of two antifouling saturated copper coating. Bioassays were can-ied out at a harbor in Argentine (38°02'S-57°32'W). During six months, one…
Fecha:	2013-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

36.

Cavity flows control by High Frequency Forcing
Martínez, Mariano Álvaro

Formato:	Tesis, Tesis de doctorado
Enlaces:	En la superficie de vehículos, tales como aviones, automóviles y trenes, las cavidades abiertas son una importante fuente de ruido generado aerodinámicamente, de aumento de la resistencia y de peligrosas fluctuaciones de presión. Diversos métodos han sido probados para suprimir…
Fecha:	2013-04-19
Recurso:	Unversidad Nacional de La Plata