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Aproximadamente 22 registro(s) hasta el momento: (base de 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

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

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

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

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

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

An argumentation framework with uncertainty management designed for dynamic environments
Capobianco, Marcela - Simari, Guillermo Ricardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Nowadays, data intensive applications are in constant demand and there is need of computing environments with better intelligent capabilities than those present in today's Database Management Systems (DBMS). To build such systems we need formalisms that can perform complicate inferences,…
Fecha:	2012-09-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

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

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.

JAD-CASE
Balda, María Verónica - Vicenzi, Ana Laura - Bertone, Rodolfo Alfredo - De Giusti, Armando Eduardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The structured techniques for systems analysis and design are still the most widely known. One of the alternatives of this technique is the JAD methodology (Joint Application Design). This methodology is an improvement with respect to the existing ones -…
Fecha:	2012-11-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

11.

A reverse engineering approach to framework comprehension
Campo, Marcelo - Price, Tom

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Framework comprehension is a very limiting factor to take full advantage of the benefits that frameworks offer to increase quality and productivity in software development. In this paper, a reverse engineering approach to framework comprehension using the MetaExplorer tool is…
Fecha:	2012-11-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

12.

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

13.

CLUIN – a new method for extracting rules for large databases
Hasperué, Waldo - Corbalán, Leonardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	When there is a need to understand the data stored in a database, one of the main requirements is being able to extract knowledge in the form of rules. Classification strategies allow extracting rules almost naturally. In this paper, the…
Fecha:	2012-11-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

14.

Assessing different rule quality measures in a genetic algorithm for discovering association rules
Soto, Wilson - Olaya Benavides, Amparo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The genetic algorithms have seen applied in knowledge discovery and specially for discovering association rules. In this paper, we explore the use of di erent rule quality measures in the tness function in a genetic algorithm for discovering association rules.…
Fecha:	2012-11-06
Recurso:	Unversidad Nacional de La Plata

Recurso libre

15.

Efficient similarity search on multimedia databases
Lopresti, Mariela - Miranda, Natalia - Piccoli, María Fabiana - Reyes, Nora Susana

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Manipulating and retrieving multimedia data has received increasing attention with the advent of cloud storage facilities. The ability of querying by similarity over large data collections is mandatory to improve storage and user interfaces. But, all of them are expensive…
Fecha:	2012-11-06
Recurso:	Unversidad Nacional de La Plata

Recurso libre

16.

A PSO-based clustering approach assisted by initial clustering information
Velázquez, Carlos - Cagnina, Leticia - Errecalde, Marcelo Luis

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Clustering of short texts is an important research area because of its applicability in information retrieval and text mining. To this end was proposed CLUDIPSO, a discrete Particle Swarm Optimization algorithm to cluster short texts. Initial results showed that CLUDIPSO…
Fecha:	2012-11-06
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

Combine vector quantization and support vector machine for imbalanced datasets
Yu, Ting - Debenham, John - Jan, Tony - Simoff, Simeon

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In cases of extremely imbalanced dataset with high dimensions, standard machine learning techniques tend to be overwhelmed by the large classes. This paper rebalances skewed datasets by compressing the majority class. This approach combines Vector Quantization and Support Vector Machine…
Fecha:	2012-11-08
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

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

19.

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

20.

Building hypermedia artifacts by the systematic use of the flexible process model
Olsina Santos, Luis Antonio

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Most of the current hypermedia model life cycles focus in analysis and design issues, ignoring crucial tasks and activities of hypermedia projects. Others do not take care of basic Software Engineering concepts such as planning, physical and logical modeling, validation…
Fecha:	2012-11-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

Formalising sharing mechanisms in object-oriented paradigm
Argarañaz, Verónica - Baum, Gabriel Alfredo - Pons, Claudia - Presso, María José - Prieto, Máximo - Romero, Natalia

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Sharing of behavior is one of the most important features in the Object-Oriented paradigm. The two classical organisations of sharing are classes and prototypes, raising two different models and two families of object oriented languages. It has been largely discussed…
Fecha:	2012-11-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

22.

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