896 research outputs found

    Petri nets applicability to music analysis and composition

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    This paper addresses the adoption of Petri Nets (PNs) in order to describe music processes. On the one hand, such formalism can be used to represent the results coming from the analysis of already existing music works. On the other hand, Petri Nets provide a formal tool to generate new music pieces. This paper is the evolution of an earlier work presented at CMMR 2005, where analytical and descriptive possibilities of Petri Nets were explored in music field. The focus of this paper is writing music by Petri Nets, and the last section will show a case study of PN-based composition

    Music Description and Processing: An Approach Based on Petri Nets and XML

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    Music description and processing require formal tools which are suitable for the representation of iteration, concurrency, ordering, hierarchy, causality, timing, synchrony, non-determinism. Petri Nets are a tool which allows to describe and process musical objects within both analysis/composition and performing environments. To accomplish this objective, a specific extension known as Music Petri Nets was developed

    Formalizing Schoenberg's Fundamentals of Musical Composition through Petri Nets

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    The formalization of musical composition rules is a topic that has been studied for a long time. It can lead to a better understanding of the underlying processes, and provide a useful tool for musicologist to aid and speed up the analysis process. In our attempt we introduce Schoenberg\u2019s rules from Fundamentals of Musical Composition using a specialized version of Petri nets, called Music Petri nets.Petri nets are a formal tool for studying systems that are concurrent, asynchronous, distributed, parallel, non-deterministic, and/or stochastic. We present some examples highlighting how multiple approaches to the analysis task can find counterparts in specific instances of PNs

    Translation Of AADL To PNML To Ensure The Utilization Of Petri Nets

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    Architecture Analysis and Design Language (AADL), which is used to design and analyze software and hardware architectures of embedded and real-time systems, has proven to be a very efficient way of expressing the non-functional properties of safety-critical systems and architectural modeling. Petri nets are the graphical and mathematical modeling tools used to describe and study information processing systems characterized as concurrent and distributed. As AADL lacks the formal semantics needed to show the functional properties of such systems, the objective of this research was to extend AADL to enable other Petri nets to be incorporated into Petri Net Markup Language (PNML), an interchange language for Petri nets. PNML makes it possible to incorporate different types of analysis using different types of Petri net. To this end, the interchange format Extensible Markup Language (XML) was selected and AADL converted to AADL-XML (the XML format of AADL) and Petri nets to PNML, the XML-format of Petri nets, via XSLT script. PNML was chosen as the transfer format for Petri nets due to its universality, which enables designers to easily map PNML to many different types of Petri nets. Manual conversion of AADL to PNML is error-prone and tedious and thus requires automation, so XSLT script was utilized for the conversion of the two languages in their XML format. Mapping rules were defined for the conversion from AADL to PNML and the translation to XSLT automated. Finally, a PNML plug-in was designed and incorporated into the Open Source AADL Tool Environment (OSATE)

    An Architecture for distributed multimedia database systems

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    In the past few years considerable demand for user oriented multimedia information systems has developed. These systems must provide a rich set of functionality so that new, complex, and interesting applications can be addressed. This places considerable importance on the management of diverse data types including text, images, audio and video. These requirements generate the need for a new generation of distributed heterogeneous multimedia database systems. In this paper we identify a set of functional requirements for a multimedia server considering database management, object synchronization and integration, and multimedia query processing. A generalization of the requirements to a distributed system is presented, and some of our current research and developing activities are discussed

    Engineering framework for service-oriented automation systems

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    Tese de doutoramento. Engenharia Informática. Universidade do Porto. Faculdade de Engenharia. 201

    AI Methods in Algorithmic Composition: A Comprehensive Survey

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    Algorithmic composition is the partial or total automation of the process of music composition by using computers. Since the 1950s, different computational techniques related to Artificial Intelligence have been used for algorithmic composition, including grammatical representations, probabilistic methods, neural networks, symbolic rule-based systems, constraint programming and evolutionary algorithms. This survey aims to be a comprehensive account of research on algorithmic composition, presenting a thorough view of the field for researchers in Artificial Intelligence.This study was partially supported by a grant for the MELOMICS project (IPT-300000-2010-010) from the Spanish Ministerio de Ciencia e Innovación, and a grant for the CAUCE project (TSI-090302-2011-8) from the Spanish Ministerio de Industria, Turismo y Comercio. The first author was supported by a grant for the GENEX project (P09-TIC- 5123) from the Consejería de Innovación y Ciencia de Andalucía
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