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Musical pattern extraction using genetic algorithms
Grilo, Carlos Fernando Almeida; Cardoso, Fernando Amílcar BandeiraThis paper describes a research work in which we study the possibility of applying genetic algorithms to the extraction of musical patterns in monophonic musical pieces. Each individual in the population represents a possible segmentation of the piece being analysed. The goal is to find a segmentation that allows the identification of the most significant patterns of the piece. In order to calculate an individu...
Paradigmatic analysis using genetic programming
Grilo, Carlos Fernando Almeida; Machado, Fernando; Cardoso, Fernando Amílcar BandeiraParadigmatic analysis consists in the segmentation of a musical piece through the identification of relations between different parts of the piece, and the classification of the identified segments into categories. In this paper we describe how a genetic programming system can be used to make the paradigmatic analysis of monophonic musical pieces, using a simple fitness function inspired in the Kolmogorov compl...
Composing music with case-based reasoning
Pereira, Francisco C.; Grilo, Carlos Fernando Almeida; Macedo, Luís; Cardoso, Fernando Amílcar BandeiraComunicação apresentada na International Conference on Computational Models of Creative Cognition, Dublin, 1997. ; Music is one of the most intriguing and joyful domain of research and analysis. Driven by this insatiable curiosity, Musical Analysis has emerged to formally understand and structure music and its intrinsic intention and causality. Each complete analysis of a piece points to issues that go far bey...
A structured framework for representing time in a generative composition system
Pereira, Francisco C.; Grilo, Carlos Fernando Almeida; Macedo, Luís; Cardoso, Fernando Amílcar BandeiraThe representation of music structures is, from Musicology to Artificial Intelligence, a widely known research focus. It entails several generic Knowledge Representation problems like structured knowledge representation, time representation and causality. In this paper, we focus the problem of representing and reasoning about time in the framework of a structured music representation approach, intended to suppo...
Plans as structured networks of hierarchically and temporally related case pieces
Macedo, Luís; Pereira, Francisco C.; Grilo, Carlos Fernando Almeida; Cardoso, Fernando Amílcar BandeiraThis paper describes a representation of plan cases as a structured set of goals and actions. These goals and actions are the unit pieces that form a case. These case pieces are related each other by hierarchical and temporal links (explanations) forming a tree-like network. We give importance not just to explicit links, i.e., links between case pieces which are concretely known, but also to implicit ones, i.e....
Towards a computational case-based model for creative planning
Macedo, Luís; Pereira, Francisco C.; Grilo, Carlos Fernando Almeida; Cardoso, Fernando Amílcar BandeiraThis paper describes a computational case-based model for the creative planning process. Our approach is inspired in Wallas’ model for the creative process in that we consider that creativity involves a sequence of four stages: preparation, incubation, illumination and verification. Preparation includes problem acquisition and assimilation of background knowledge, which is represented by cases, i.e., documented...
Experimental study of a similarity metric for retrieving pieces from structured...
Macedo, Luís; Pereira, Francisco C.; Grilo, Carlos Fernando Almeida; Cardoso, Fernando Amílcar BandeiraThis paper describes a quantitative similarity metric and its contribution to achieve original plan solutions. This similarity metric is used by an iterative process of piece retrieval from structured plan cases. Within our approach plan cases are tree-like networks of pieces (goals and actions). These case pieces are ill-related each other by links (explanations). These links may be classified as hierarchical ...
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