Maria Rosa Galli - Academia.edu (original) (raw)

Papers by Maria Rosa Galli

Expert Systems With Applications, Mar 1, 2014

Ontology development techniques still constitute an open research area despite its importance in ... more Ontology development techniques still constitute an open research area despite its importance in semantic aware information systems. Until now, most methods have used UML in supporting ontology development process. Recent works propose the mapping of business rules expressions to ontology statements as a building technique by means of SBVR language. However, there is still no experimental research comparing such approaches. Aim of this work is to evaluate the feasibility of mapping business domain expressions to ontology statements. An exploratory experiment comparing performance of techniques based on UML and SBVR languages is presented. Comparison is rooted in the quality assessment of the ontologies developed by 10 equally sized groups randomly conformed by 30 undergraduate engineering students and applying such techniques. Developed ontologies largely outperform the minimally acceptable quality, according to the considered quality assessment framework. There is no statistical significant difference between the quality scores of the ontologies developed by means of UML and SBVR techniques, in any of the assessed quality dimensions. The feasibility of mapping business domain expressions to ontology statements is shown: ontologies developed by means of a SBVR based approach at least equate the quality of ontologies developed by using an UML based method. Results confirm previous research about the effectiveness of UML approaches for conceptualizing lightweight ontologies while stressing the potential of the SBVR language to express complex notions of a domain of interest. The potential of SBVR to OWL 2 mappings as an ontology development technique worthy of further study is highlighted.

XIII Jornadas de Vinculación Universidad-Industria (JUI 2020) - JAIIO 49 (Modalidad virtual), 2020

Resumen. Gran parte del conocimiento presente en las empresas se encuentra almacenado en objetos ... more Resumen. Gran parte del conocimiento presente en las empresas se encuentra almacenado en objetos de conocimiento. Estos objetos deben ser administrados por una plataforma de gestión de conocimiento en su representación original a fin de facilitar su correcto acceso. Para ello, se debe capturar la semántica de su contenido y proveer herramientas para realizar búsquedas inteligentes. En este contexto, se estableció una vinculación entre el CIDISI, la Fundación Sadosky y la empresa Accion Point S.A. para desarrollar una plataforma prototipo que facilite la búsqueda de documentos asociados a los productos que comercializan.

OntoQualitas is a framework to evaluate an ontology whose purpose is the interchange of informati... more OntoQualitas is a framework to evaluate an ontology whose purpose is the interchange of information between different contexts. However, the framework does not propose acceptance thresholds of the measure values. In this paper, measures proposed in this framework are redefined in order to improve their usefulness in assessing the quality of such ontologies. These measures were calculated semi-automatically on a set of ontologies and its results were described by means of a statistical analysis as a first step to the definition of their acceptance thresholds.

CLEI Electronic Journal, 2021

This work introduces the formulation and application of a MILP model to solve the problem of plan... more This work introduces the formulation and application of a MILP model to solve the problem of planning the weekly production of a machining plant using numerical control lathes to manufacture spare parts for agricultural machines. The machining plant works under a Flexible Job Shop system and it has reduced workforce with different skills to operate the various high-complexity lathes and to carry out setup operations in each machine. The developed model is based on a basic formulation for the classic problem and we introduce some flexible adjustment for the various situations that may arise from different scheduling problems. The model is applied to various scenarios; and we include a discussion of the improvements brought about by the analysis.

El objetivo de nuestro Grupo de Investigación y Desarrollo es analizar, diseñar y desarrollar un ... more El objetivo de nuestro Grupo de Investigación y Desarrollo es analizar, diseñar y desarrollar un prototipo generador de Sistemas Soporte de Decisiones (SSD) con capacidad de adaptación a diferentes estructuras organizativas de la empresa, con flexibilidad para incorporar cambios de los productos y de los procesos de producción y ofrecer soporte a todos los puntos de decisión de la organización. En este trabajo presentamos una descripción del subsistema de soporte de la actividad de diseño de producto. Este subsistema es uno de los doce módulos que integran el prototipo, y uno de los cinco que actualmente están siendo desarrollados por nuestro grupo. En particular presentamos la estrategia diseñada para el manejo de la información asociada al producto y una descripción del análisis y diseño orientado a objetos del subsistema.

La gestión integrada de la cadena de suministro no puede sustentarse en la relación jerárquica co... more La gestión integrada de la cadena de suministro no puede sustentarse en la relación jerárquica convencional e implica una nueva forma de relación estratégica basada en un modelo de colaboración entre las empresas. Este modelo de colaboración implica rediseñar los mecanismos y las técnicas de gestión de la cadena de suministro interna de cada empresa, con la visión de dar soporte a los procesos de colaboración y negociación que la misma debe mantener con las otras entidades de la cadena de suministro. El objetivo de este proyecto es estudiar los requerimientos y funcionalidades asociadas con este modelo de colaboración a efectos de desarrollar técnicas y estrategias bases para el desarrollo de sistemas soporte de las actividades de colaboración y negociación. Dicho sistema será el responsable de la comunicación con las otras entidades de la cadena de suministro en el proceso de colaboración y negociación, para lo cual recibirá el apoyo de un sistema soporte de los procesos de decisión internos de la entidad. Para ello se desarrollarán técnicas y estrategias apropiadas para dar soporte al modelo de colaboracion, en particular para planificación/ scheduling y para monitoreo de perturbaciones y control supervisor del sistema productivo.

Concepts, Opportunities and Challenges

The objective of this chapter is to present an ontology-based framework for supporting the repres... more The objective of this chapter is to present an ontology-based framework for supporting the representation of the semantics of the XML-based EBDs, which are interchanged between trading partners for managing a decentralized B2B collaborative relationship. This framework is based on the idea of making explicit contextual features, generally implicit in an ontology, for allowing the semantic interoperability between the Information Systems belonging to different contexts. The use of the framework is illustrated with an application example.

Computers in Industry, 2014

Nowadays, Internet technologies and standards are being systematically used by enterprises as too... more Nowadays, Internet technologies and standards are being systematically used by enterprises as tools to provide an infrastructure to connect people, enterprises, and applications they are using. In such complex networked enterprises, it is increasingly challenging to interchange, share, and manage internal and external digital information. In this context, to achieve interoperability between information systems is a challenging task. In order to solve the interoperability problem at semantic level, several ontology-based approaches have emerged. Although methodologies, methods, techniques, and tools to support the ontology building process were proposed, there are no mature models to measure this process, and the quality of implemented ontologies remains a major concern. This paper presents a framework, OntoQualitas, for evaluating the quality of an ontology whose purpose is the information interchange between different contexts. OntoQualitas includes previous and new measures to evaluate the ontology considering its specific purpose. Additionally, an empirical validation of OntoQualitas is presented.

Expert Systems with Applications, 2015

The interest in the use of ontologies for creating more intelligent and effective enterprise info... more The interest in the use of ontologies for creating more intelligent and effective enterprise information systems has increased considerably in recent years. The most critical aspects during the development of these systems are: (1) to identify the ontology concepts and (2) to make explicit the business rules by means of the ontology axioms. In order to address these issues, mappings of business rules expressions to ontology statements based on different languages were proposed. Despite the efforts made in this area, some work remain to be done. This work presents a set of ontology design patterns providing a way to obtain an OWL/SWRL ontology by applying metamodel transformation rules over the SBVR specification of a business domain. Patterns are rooted in the structural specification of the standards, providing a set of mappings readily usable for business people or developers concerned with the implementation of a mapping tool. Moreover, translations from SBVR to SWRL language are presented in order to fill the gap in the expressive power of SBVR and OWL. The theoretical expressions of patterns are illustrated by means of an example depicting the core structure of a fictitious company.

Web Semantics & Ontology

A common approach to represent semantics on Semantic Web area is to use an ontology. However, the... more A common approach to represent semantics on Semantic Web area is to use an ontology. However, there is an emerging approach that combines an ontology with its context definition. So, the misunderstanding can be avoided if the context is explicitly defined. The resulting structure is called contextual ontology. To process a contextual ontology at run time, it has to be expressed in a machine processable language. However, for the analysis and design phase of a Web domain, a more appropriate ontology modeling language is needed. To this aim, this chapter presents a metamodel for modeling explicit and formal contextual ontologies that assists Web domain designers in modeling contextual ontologies. Furthermore, the relationship between XML specifications and ontologies in order to add formal and explicit semantics to Web domain designs is analyzed.

Expert Systems with Applications, 2014

Capítulo 2. Patrones de diseño para la reingeniería de sentencias SBVR en ontologías OWL/SWRL 2.1... more Capítulo 2. Patrones de diseño para la reingeniería de sentencias SBVR en ontologías OWL/SWRL 2.1. Patrones de diseño de ontologías .

We have developed a distributed DSS able to work in a dynamic way. This system is based on the us... more We have developed a distributed DSS able to work in a dynamic way. This system is based on the use of mobile agents, which receive the user's queries and visit the DSS domains gathering the required information. One of the main elements to the efficient operation of this system is the router agent. Its responsibility is to give an adequate route to the mobile agents. In this paper we propose a structure for the router agent. It includes a Knowledge Base where the information managed by each domain is represented, and a mechanism of matching the query contents to the domain contents. We also present an interactive strategy to obtain the initial data to be stored in the Router Knowledge Base. The AHP method is used to support the task of evaluating the relative importance among terms representing each domain.

ICFAI J Knowledge Manage, 2005

Abstract. In the last years Knowledge Management (KM) has caught the attention of both industrial... more Abstract. In the last years Knowledge Management (KM) has caught the attention of both industrialists and researchers. Though, an important gap exists between these two domains, mainly, due to the lack of understanding of the KM concept and the activities that it implies by ...

Actualmente el empleo de la información geográfica es inherente a muchos dominios de aplicación e... more Actualmente el empleo de la información geográfica es inherente a muchos dominios de aplicación en diversas disciplinas. Dado el potencial de la información geográfica, ésta constituye una herramienta relevante para facilitar la toma de decisiones y la gestión de recursos. Existen estándares para la representación a través de modelos conceptuales de la información geográfica. Sin embargo, éstos presentan limitaciones tanto para incorporar expresividad semántica, ya que sólo consideran los aspectos técnicos; como para modelar adecuadamente aplicaciones que utilizan información geográfica, ya que no consideran todos los conceptos involucrados en el dominio geoespacial, sus características y relaciones. En este trabajo se presenta una meta-ontología que permite crear modelos semánticos enriquecidos capaces de representar y realizar inferencias sobre el conocimiento de la información geográfica.Nowadays, the use of Geographic Information is inherent in many application domains in variou...

In recent years, model-driven engineering has been popularized by the Model-Driven Architecture (... more In recent years, model-driven engineering has been popularized by the Model-Driven Architecture (MDA) initiative. Essentially, in MDA three types of viewpoints on models are distinguished: the Computation Independent Model (CIM), the Platform Independent Model (PIM) and the Platform Specific Model (PSM). Many research works of MDA are primary focusing on the PIM and PSM, and transformations between each other. On the other hand, the Semantic Web has popularized another notion of model: ontologies. MDA may benefits from ontologies in formal model of domain semantics and automated reasoning. In this paper an approach for generating an ontology from a Language Extended Lexicon (LeL) with the aim of facilitating the tranformation between CIM and PIM is presented. In addition, a software application, called OntoLEL Tool, that implements this approach is described.