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Aproximadamente 47 registro(s) hasta el momento: (knowledge)

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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

Webexpert – tool for knowledge acquisition by web
Fernandes, Anita Ma. da Rocha - Nascimento, Raphael Luiz

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Knowledge acquisition for systems based on knowledge can be called knowledge engineering, according to Feigenbaum (1980) who used the term to describe the reduction of a wide context of knowledge for a set of facts and rules. The term Knowledge…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata

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

On the implementation of the belief change operators
Falappa, Marcelo Alejandro - Fermé, Eduardo L.

Formato:	Articulo, Articulo
Enlaces:	In this article we will introduce certain considerations that must be taken into account while implementing the change operations of the belief change theory. The abstract models of bellief change make no considerations in respecto to the internal structures of…
Fecha:	2004-05-07
Recurso:	Unversidad Nacional de La Plata

Recurso libre

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

Prior knowledge in evolutionary fuzzy recurrent controllers design
Apolloni, Javier - Kavka, Carlos - Roggero, Patricia

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	A fuzzy controller is usually designed by formulating the knowledge of a human expert into a set of linguistic variables and fuzzy rules. As it is well known, the use of prior knowledge can dramatically improve the performance and quality…
Fecha:	2012-09-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Improving web personalization re-engineering processes using cognitive knowledge management
Martín, Adriana - Cechich, Alejandra

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	A re-design process implies dealing with complex interactions between stakeholders, especially if we are talking about a personalization re-engineered process, which can be applied to an existing web application. In this context, knowledge becomes a main factor of influence, but…
Fecha:	2012-09-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

A model for concepts extraction and context identification in knowledge based systems
Bortolon, Andre - Hoeschl, Hugo Cesar - Bueno, Tânia C. D. - Coelho, Christianne C. S. R.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Information Retrieval Systems normally deal with keywordbased technologies. Although those systems reach satisfactory results, they aren’t able to answer more complex queries done by users, especially those directly in natural language. To do that, there are the KnowledgeBased Systems, which…
Fecha:	2012-11-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Specifying quality characteristics and attributes for E-Learning sites
Covella, Guillermo Juan - Olsina Santos, Luis Antonio

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Education involves a continuous process of exploration, acquisition, organization, integration and delivery of information and knowledge. In recent years, e-learning sites and applications have exponentially started to grow, being a central phenomenon for the industry and education fields. Key factors…
Fecha:	2012-10-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

10.

Revisions of orders in dynamic systems
Falappa, Marcelo Alejandro - Simari, Patricio D.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Current reasoning systems attempt to model an agent's knowledge and interaction with its environment in a symbolic manner. This environment, its world is generally dynamic and changing due to natural evolution or the actions of other agents that are a…
Fecha:	2012-09-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

11.

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

12.

Construction of a taxonomy for requirements engineering commercial-off-the-shelf components
Ayala, Claudia - Botella, Pere - Franch, Xavier

Formato:	Articulo, Articulo
Enlaces:	This article presents a procedure for constructing a taxonomy of COTS products in the field of Requirements Engineering (RE). The taxonomy and the obtained information reach transcendental benefits to the selection of systems and tools that aid to RE-related actors…
Fecha:	2008-05-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

13.

Inserting problem-specific knowledge in multirecombined evolutionary algorithms
Pandolfi, Daniel - San Pedro, María Eugenia de - Villagra, Andrea - Vilanova, Gabriela - Gallard, Raúl Hector

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In the restricted single-machine common due date problem the goal is to find a schedule for the n jobs which jointly minimizes the sum of earliness and tardiness penalties, while for the weighted tardiness problem the goal is to find…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

14.

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

15.

Belief revision and relevance
Falappa, Marcelo Alejandro - Maguitman, Ana Gabriela

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The aim of this work is to relate two apparently independent concepts as belief revision and relevance. We propose a formal characterization for the notion of (ir)relevance by means of a set of postulates. Then we define (ir)relevance using change…
Fecha:	2012-10-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

16.

Reasoning module interface design considerations
Stankevicius, Alejandro G.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	DLP is a basic java-based IDE specifically conceived for DeLP, that allows to compile DeLP programs and queries into JAM opcodes, execute those opcodes, and even witness the actual step by step construction of the dialectical tree that is built…
Fecha:	2012-09-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

A knowledge representation semantic network for a natural language syntactic analyzer based on the UML
Silva, Alberto Tavares da - Carvalho, Luis Alfredo V.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The need for improving software processes approximated the software engineering and artificial intelligence areas. Artificial intelligence techniques have been used as a support to software development processes, particularly through intelligent assistants that offer a knowledge-based support to software process’ activities.…
Fecha:	2012-11-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

Parallel defeasible argumentation
García, Alejandro Javier - Simari, Guillermo Ricardo

Formato:	Articulo, Articulo
Enlaces:	Implicitly exploitable parallelism for Logic Programming has received ample attention. Defeasible Argutmentation is specially apt for this optimizing technique. Defeasible Logic Programming (DLP), which is based on a defeasible argumentation formalism, could take full advantage of this type of parallel…
Fecha:	2004-05-06
Recurso:	Unversidad Nacional de La Plata

Recurso libre

19.

A genetic based neuro-fuzzy controller for thermal processes
Goel, Ashok Kumar - Saxena Chandra, Suresh - Surekha, Bhanot

Formato:	Articulo, Articulo
Enlaces:	This paper presents a neuro-fuzzy network where all its parameters can be tuned simultaneously using Genetic Algorithms. The approach combines the merits of fuzzy logic theory, neural networks and genetic algorithms. The proposed neuro-fuzzy network does not require a priori…
Fecha:	2008-05-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

Cyclic evolution: a new strategy for improving controllers obtained by layered evolution
Olivera, Javier Hugo - Lanzarini, Laura Cristina

Formato:	Articulo, Articulo
Enlaces:	Complex control tasks may be solved by dividing them into a more specific and more easily handled subtasks hierarchy. Several authors have demonstrated that the incremental layered evolution paradigm allows obtaining controllers capable of solving this type of tasks. In…
Fecha:	2008-05-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

Cellular memetic algorithms
Alba, Enrique - Dorronsoro, Bernabé - Alfonso, Hugo

Formato:	Articulo, Articulo
Enlaces:	This work is focussed on the development and analysis of a new class of algorithms, called cellular memetic algorithms (cMAs), which will be evaluated here on the satisfiability problem (SAT). For describing a cMA, we study the effects of adding…
Fecha:	2008-05-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

22.

Learning object semantic description for enhancing reusability
Señas, Perla - Moroni, Norma

Formato:	Articulo, Articulo
Enlaces:	In the design of activities for Web-Based Education Systems, the concept of Didactic Object or Learning Object, has appeared as the axis of a new paradigm concerned with the reusability of contents and activities, due to its organization from a…
Fecha:	2008-05-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

23.

Evaluation of the antioxidant and phototoxic potentials of Bauhinia microstachya var. massambabensis Vaz leaf extracts
Mansur, Maria Cristina.P.P.R. - Leitão, Susana G. - Lima, Luis M.T.R. - Ricci-Júnior, Eduardo - Souza, Gabriela R. de - Barbi, Nancy dos S. - Martins, Tathiana S. - Dellamora Ortiz, Gisela M. - Leo, Rodrigo R. T. - Vieira, Ricardo C. - Leitão, Gilda G. - Santos, Elizabete P.

Formato:	Articulo, Articulo
Enlaces:	Four different leaf extracts of B. microstachya var. massambabensis were studied to evaluate their antioxidant capacity by using three in vitro methods, with Ginkgo biloba and Trolox® as the standards. With the DPPH and ABTS·+ methods, the antioxidant activity of…
Fecha:	2012-05-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

24.

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

25.

Tableau calculi for description logics revision
Moguillansky, Martín O. - Falappa, Marcelo Alejandro

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Focusing on the Ontology Change problem, we consider an environment where Description Logics (DLs) are the logical formalization to express knowledge bases, and the integration of distributed ontologies is developed under new extensions and modifications of the Belief Revision theories…
Fecha:	2012-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

26.

Embedding defeasible argumentation in the semantic web: an ontology-based approach
Gómez, Sergio Alejandro - Chesñevar, Carlos Iván - Simari, Guillermo Ricardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The SemanticWeb is a project intended to create a universal medium for information exchange by giving semantics to the content of documents on the Web by means of ontology definitions. Ontologies intended for knowledge representation in intelligent agents rely on…
Fecha:	2012-09-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

27.

Characterizing defeat in observation-based defeasible logic programming
Capobianco, Marcela - Chesñevar, Carlos Iván

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In this work we analyze the problem of incorporating specificity to characterize defeat in a particular argumentative framework, called observation based defeasible logic programming (ODeLP) [1]. Eficiency is an important issues in ODeLP, since this framework has been de ned…
Fecha:	2012-09-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

28.

Non prioritized reasoning in intelligent agents
Falappa, Marcelo Alejandro - Simari, Guillermo Ricardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The design of intelligent agents is greatly influenced by the many different models that exist to represent knowledge. It is essential that such agents have computationally adequate mechanisms to manage its knowledge, which more often than not is incomplete and/or…
Fecha:	2012-09-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

Introducing multiple preference criteria in defeasible argumentation
Rotstein, Nicolás D. - Simari, Guillermo Ricardo - García, Alejandro Javier

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In this research line we are exploring the possibility of having multiple preference criteria to compare arguments in in Defeasible Argumentation. In this work we are assuming a goaloriented Argumentative System, to which an application or an agent may seek…
Fecha:	2012-09-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

30.

Evolution of recurrent fuzzy controllers
Kavka, Carlos - Roggero, Patricia - Apolloni, Javier

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The main advantage of a recurrent architecture is the ability to store information from prior system states. A recurrent fuzzy controller includes hidden fuzzy variables which makes the controller more appropriate to deal with dynamic systems. We are currently investigating…
Fecha:	2012-09-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

Strengthening intrusion detection techniques through emerging patterns
Grandinetti, Walter M.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In todays world where nearly every company is dependent on the Internet to survive, it is not surprising that the role of intrusion detection has become extremely important within the last decade. Intrusion detection involves determining whether some entity has…
Fecha:	2012-09-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

32.

A taxonomy for argumentative frameworks based on labelled deduction
Chesñevar, Carlos Iván

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Artificial Intelligence has long dealt with the issue of finding a suitable formalization for reasoning with incomplete and potentially inconsistent information. Defeasible argumentation [SL92,CML00,PraVre99] has proven to be a successful approach in many respects, since it naturally resembles many aspects…
Fecha:	2012-09-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

33.

Capturing reputation features in multiagent systems through emerging patterns
Grandinetti, Walter M. - Chesñevar, Carlos Iván

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Multiagent systems and online communities rely on rating systems to infer the reputation given to an individual within a particular context. The notion of reputation is essential for helping a given individual to trust in other individuals and for being…
Fecha:	2012-09-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

34.

Redefinition of basic modules of an intelligent tutoring system: the tutor module
Salgueiro, Fernando A. - Costa, Guido - Cataldi, Zulma - Lage, Fernando Javier - García Martínez, Ramón

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	It has been noticed that during the initial semesters of Computing Engineering that the amount of human tutors is insufficient. The students/tutors ratio is very high and there is a great difference in the acquired knowledge and backgrounds. The idea…
Fecha:	2012-09-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

A general approach to the implementation of action theories
Simari, Guillermo Ricardo - García, Diego R. - Filocamo, Gabriel R.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Much effort has been dedicated to provide a general model of agents working in complex environments. This research focuses on the high level cognition used in determining the behavior of the agent. The language of the Situation Calculus represents a…
Fecha:	2012-09-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

36.

Perception and enterprise communication networks to improve the requirements elicitation process
Luzuriaga, Juan Manuel - Martínez, Rodolfo - Cechich, Alejandra

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The requirements elicitation phase of software development projects is characterised by the intensity and importance of communication activities. Requirements elicitation is a traditional exploratory phase in which context is analysed and an abstraction is performed as a consequence. However, exploratory…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

37.

Logic modules for communicating distributed agents
Zunino, Alejandro - Amandi, Analía

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The development of isolated agents involves the manipulation of components such as actions, mental attitudes and decisions. Multi-agent systems have to deal with these components from different agents, without to forget the privacy and autonomy of each agent. For programming…
Fecha:	2012-10-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

38.

Dynamic tuning of parallel programs
Morajko, Anna - Margalef, Tomás - Luque Fadón, Emilio - Espinosa, Antonio

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Performance of parallel programs is one of the reasons of their development. The process of designing and programming a parallel application is a very hard task that requires the necessary knowledge for the detection of performance bottlenecks, and the corresponding…
Fecha:	2012-10-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

39.

Designing intelligent database systems through argumentation
Capobianco, Marcela - Chesñevar, Carlos Iván - García, Alejandro Javier - Simari, Guillermo Ricardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Information systems play an ever-increasing key role in our society. In particular, data intensive applications are in constant demand and there is need of computing environments with much more intelligent capabilities than those present in today’s Data-base Management Systems (DBMS).…
Fecha:	2012-09-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

40.

Optimization of tardiness related objectives in single machine environments via multirecombined evolutionary algorithms
San Pedro, María Eugenia de - Villagra, Andrea - Lasso, Marta - Pandolfi, Daniel - Vilanova, Gabriela - Vivar , M. Díaz de - Gallard, Raúl Hector

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Tardiness related objectives are of utmost importance in production systems when client satisfaction is a main goal of a company. These objectives measure the system response to the client requirements and rate manager´s performance In scheduling problems with diverse single…
Fecha:	2012-09-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

41.

A logical framework for modeling argumentation using labelled deduction
Chesñevar, Carlos Iván - Simari, Guillermo Ricardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Classical methods for representing and reasoning with knowledge rely on the assumption that the available information is complete, certain and consistent. In real-world problems this is usually not the case, and Al has long dealt with the issue of finding…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

42.

Modelling argumentation lines in abstract frameworks
Martínez, Diego C. - Simari, Guillermo Ricardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The area of Knowledge Representation and Reasoning has been enriched during the past two decades with the addition of Argument-Based Reasoning Systems. In formal systems of defeasible argumentation, arguments for and against a proposition are produced and evaluated to test…
Fecha:	2012-09-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

43.

Abstract argumentation and dialogues between agents
Martínez, Diego C. - García, Alejandro Javier

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	A multiagent system (MAS) is made up of multiple interacting autonomous agents. It can be viewed as a society in which each agent performs its activity, cooperating to achieve common goals, or competing for them. Thus, every agent has the…
Fecha:	2012-09-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

44.

Checking semantics in UML models
Kahnert, Susana - Fillottrani, Pablo Rubén

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Modeling is one of the most crucial activities during all the phases in any software development life cycle. Typically, system development is a very complex task, and working with models helps to handle this complexity in an organized way, allowing…
Fecha:	2012-09-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

45.

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

46.

Multirecombining random and seed immigrants in evolutionary algorithms to face the shop scheduling problem
Vilanova, Gabriela - Villagra, Andrea - Pandolfi, Daniel - San Pedro, María Eugenia de - Gallard, Raúl Hector

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In an m-machines n-jobs flow-shop sequencing problem each job consists of m operations and each operation requires a different machine, so n jobs have to be processed in the same sequence on m machines. The processing time of each job…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

47.

Using logic programs to model an agent's epistemic state
Capobianco, Marcela - Chesñevar, Carlos Iván

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The notion of rational agency was proposed by Russell [9] as an alternative characterization of intelligence agency. Loosely speaking, an agent is said to be rational if it perfomns the right actions according to the information it possesses and the…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata