Alberto Pinto

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Content based music retrieval opens up large collections, both for the general public and music scholars. It basically enables the user to find (groups of) similar melodies, thus facilitating musicological research of many kinds. We present a graph spectral approach, new to the music retrieval field, in which melodies are represented as graphs, based on the(More)
In this paper we extend M. Lyubich's recent results on the global hyper-bolicity of renormalization of quadratic-like germs to the space of C r unimodal maps with quadratic critical point. We show that in this space the bounded-type limit sets of the renormalization operator have an invariant hyperbolic structure provided r ≥ 2 + α with α close to one. As(More)
The increasing diffusion of XML languages for the encoding of domain-specific multimedia information raises the need for new information retrieval models that can fully exploit structural information. An XML language specifically designed for music like MX allows queries to be made directly on the thematic material. The main advantage of such a system is(More)
The development of both musicologically based and efficient music information retrieval metrics to query large music database is crucial in modern music information retrieval, knowledge management and database research. Graph spectral representation of pitch class sequences has proved to outperform other pitch class based melodic similarity methods. Here(More)
Efeito da correção cirúrgica da retração palpebral superior da orbitopatia de Graves no contorno e cinética palpebrais do Porto. Artigo 48, § 3º: "A Faculdade não responde pelas doutrinas expendidas na dissertação". (Regulamento da Faculdade de Medicina do Porto, 29 Janeiro de 1931, Decreto-Lei nº 19337). Professor Auxiliar Convidado da Faculdade de(More)