Um modelo de simulação para a análise de produtividade de equipamentos rodoviários

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia de Produção

Design of fuzzy cash flows applying most typical values to a case-based reasoner outcome

Paper presented at the 3rd Congress of the Association for Fuzzy-Set Management and Economics, Buenos Aires, ArgentinaWhen dealing with economic decision making, (e.g., financial decision making, budgeting, business feasibility evaluation), one always needs to model cash flows that are uncertain by nature. Due to the lack of information, one has to rely on expert’s knowledge to perform such task. Experts use their expertise that combines knowledge and experiences within the context. We propose a system that builds a fuzzy cash flow from the outcome of a Case-Based Reasoning (CBR) system . This outcome is a set of numeric values where we calculate the Most Typical Values (MTV). The CBR system suggests a set of estimated values, appraising cash flow accounts. The system selects the values that better represent the given set using MTV approach, automatically creating Most Typical Fuzzy Sets describing values such as “around $500.00”. The content of the fuzzy cash flow consists of actual numbers (provided by certain liabilities and receivables), stated values (such as production targets and sales forecasts) and fuzzy constraints. The actual and stated values are combined with the fuzzy constraints with the purpose of building fuzzy cash flows to support financial decision making

On legal texts and cases

Textual Case-Based Reasoning: Papers from the 1998 Workshop, Technical Report WS-98-12: pp. 40-50.The search employed by judicial professionals when seeking for past similar legal decisions is known as jurisprudence research. Humans employ analogical reasoning when comparing a given actual situation with past decisions, noting the affinities between them. In the process of being reminded of a similar situation when faced to a new one, Case-Based Reasoning (CBR) systems simulate analogical reasoning. Judicial professionals have two sources of jurisprudence research: books and database systems. The search in books is time-consuming and imprecise due to the limitations of humans' memory. Available text database systems do not guarantee the retrieval of useful documents. PRUDENTIA is the case-based reasoner tailored to the Brazilian system that confers efficiency to jurisprudence research. Judicial cases are described with natural language text, comprising a collection of textual documents. These texts are the experiences that require case engineering to be modeled in a structured representation of cases. We have developed an automatic means of performing the case engineering, that is, converting legal texts into structured representation of cases. Examples of PRUDENTIA demonstrate the power of similarity-based retrieval in a textual CBR system against text database applications improving the usefulness of the documents retrieved

On-line decision support fuzzy systems: an application to product pricing

Paper presented at the Annual Meeting of the North American Fuzzy Information Processing Society, NAFIPS 97: pp. 15 - 20.The extremely fast development of software tools in the last few years has open a completely new perspective for computing systems. The emergence of commuting languages such as Per1 and Java has made possible the development of on-line systems running as cross-platform programs. In this article we present an example of such systems: a commuting system for cost analysis. The system provides an analysis of the cost structure of a firm and can be accessed through the Internet as an on-line application. The aim of the application presented in this paper is to perform product pricing evaluation. The fuzzy system evaluates an initial product pricing which is the result of a contribution margin entered by the user. After iterative cycles, the system reaches a pricing decision; the latest decision is such that a contribution margin correction is no longer necessary. At this point, the fuzzy system returns a pricing suggestion to the user. This answer is associated with a contribution margin value and with a rate of return forecast

Representing cases from texts in case-based reasoning

Paper presented at the Third International Conference of Industrial Engineering and XVII ENEGEP, Rio Grande do Sul, Brazil.Case representation is a Case-Based Reasoning (CBR) problem area that refers to selecting proper descriptors to describe and index cases. The complexity of case representation has been preventing CBR systems from solving problems when large case bases are required. We present the development and implementation of a methodology to automatically convert legal texts into cases based on indexing methods and domain expert knowledge. The methodology is tailored to the domain of law although it can be extended to be applied to other domains as well

A large case-based reasoner for legal cases

Case-Based Reasoning Research and Development: Proceedings of the 2nd International Conference on Case-Based Reasoning, ICCBR 1997: pp. 190-199.In this paper we propose a large case-based reasoner for the legal domain. Analyzing legal texts for indexing purposes makes the implementation of large case bases a complex task. We present a methodology to automatically convert legal texts into legal cases guided by domain expert knowledge in a rule-based system with Natural Language Processing (NLP) techniques. This methodology can be generalized to be applied in different domains making Case-Based Reasoning (CBR) paradigm a powerful technology to solve real world problems with large knowledge sources

5to. Congreso Internacional de Ciencia, Tecnología e Innovación para la Sociedad. Memoria académica

El V Congreso Internacional de Ciencia, Tecnología e Innovación para la Sociedad, CITIS 2019, realizado del 6 al 8 de febrero de 2019 y organizado por la Universidad Politécnica Salesiana, ofreció a la comunidad académica nacional e internacional una plataforma de comunicación unificada, dirigida a cubrir los problemas teóricos y prácticos de mayor impacto en la sociedad moderna desde la ingeniería. En esta edición, dedicada a los 25 años de vida de la UPS, los ejes temáticos estuvieron relacionados con la aplicación de la ciencia, el desarrollo tecnológico y la innovación en cinco pilares fundamentales de nuestra sociedad: la industria, la movilidad, la sostenibilidad ambiental, la información y las telecomunicaciones. El comité científico estuvo conformado formado por 48 investigadores procedentes de diez países: España, Reino Unido, Italia, Bélgica, México, Venezuela, Colombia, Brasil, Estados Unidos y Ecuador. Fueron recibidas un centenar de contribuciones, de las cuales 39 fueron aprobadas en forma de ponencias y 15 en formato poster. Estas contribuciones fueron presentadas de forma oral ante toda la comunidad académica que se dio cita en el Congreso, quienes desde el aula magna, el auditorio y la sala de usos múltiples de la Universidad Politécnica Salesiana, cumplieron respetuosamente la responsabilidad de representar a toda la sociedad en la revisión, aceptación y validación del conocimiento nuevo que fue presentado en cada exposición por los investigadores. Paralelo a las sesiones técnicas, el Congreso contó con espacios de presentación de posters científicos y cinco workshops en temáticas de vanguardia que cautivaron la atención de nuestros docentes y estudiantes. También en el marco del evento se impartieron un total de ocho conferencias magistrales en temas tan actuales como la gestión del conocimiento en la universidad-ecosistema, los retos y oportunidades de la industria 4.0, los avances de la investigación básica y aplicada en mecatrónica para el estudio de robots de nueva generación, la optimización en ingeniería con técnicas multi-objetivo, el desarrollo de las redes avanzadas en Latinoamérica y los mundos, la contaminación del aire debido al tránsito vehicular, el radón y los riesgos que representa este gas radiactivo para la salud humana, entre otros

O ensino a distância e o setor produtivo: levando a universidade ao local de trabalho

This article describes the experiente accumulated with the distance courses offered by the Production Engineering Graduate Program at the Federal University of Santa Catarina to Petrobras and Siemmens. Answering to specific needs of the productive sector, the production and administration of those courses incorporate trends of flexible productive process that are typical of Post-Fordism. The analysis of the perception teachersand students had in the two courses shows that the pedagogical strategies used werestrongly determined by technical limitations and by faculty training to use the technology involved. Finally, one can see that the new model points to issues that have not been solved yet in traditional education, specially those related to the new role of the professor as a facilitator, in contrast with the old view of the teacher as the unrivaled source of knowledgeand information. KEYWORDS: Virtual university; Videoconferencing; Interactive distance education; Integration university/productive sectorEste artigo decreve a experiência de dois cursos a distância por videoconferência e Internet oferecidos pelo Programa de Pós-graduação em Engenharia de Produção da UFSC para a Petrobras e para a Siemmens. Respondendo à demanda do setor produtivo, a criação e administração destes cursos vem incorporando as tendências de flexibilização dos processos produtivos identificados com a etapa do Pós-Fordismo. A análise da percepção dos alunos e professores dos dois cursos mostra que as estratégias pedagógicas utilizadas são fortemente determinadas pelas limitações técnicas e pelo preparo docente para usar a tecnologia. Além disso, o novo modelo ilumina questionamentos não resolvidos no ensino presencial, principalmente aqueles relacionados ao papel do professor como facilitador e não mais como única fonte de conhecimento e informação