Josep Lluís Arcos

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In this article we argue that open agent organisations can be effectively designed and implemented as institutionalized electronic organisations ('electronic institutions') composed of a vast amount of heterogeneous (human and software) agents playing different roles and interacting by means of speech acts. Here we take the view that the desing and(More)
The design and development of open multi-agent systems (MAS) is a key aspect in agent research. We advocate that they can be realised as electronic institutions. In this paper we focus on the execution of electronic institutions by introducing AMELI, an infrastructure that mediates agentsý interactions while enforcing institutional rules. An innovative(More)
We have studied the problem of generating expressive musical perfor mances in the context of tenor saxophone interpretations We have done several recordings of a tenor sax playing di erent Jazz ballads with di er ent degrees of expressiveness including an inexpressive interpretation of each ballad These recordings are analyzed using SMS spectral modeling(More)
Locating boundaries between coherent and/or repetitive segments of a time series is a challenging problem pervading many scientific domains. In this paper we propose an unsupervised method for boundary detection, combining three basic principles: novelty, homogeneity, and repetition. In particular, the method uses what we call structure features, a(More)
Nowadays, with the expansion of Internet, there is a need of methodologies and software tools to ease the development of applications where distributed homogeneous entities can participate. Multiagent systems, and electronic institutions in particular, can play a main role on the development of this type of systems. Electronic institutions define the rules(More)
Popular music is a key cultural expression that has captured listeners' attention for ages. Many of the structural regularities underlying musical discourse are yet to be discovered and, accordingly, their historical evolution remains formally unknown. Here we unveil a number of patterns and metrics characterizing the generic usage of primary musical facets(More)
Designing coordinated robot behaviors in uncertain, dynamic, real-time, adversarial environments, such as in robot soccer, is very challenging. In this work we present a case-based reasoning approach for cooperative action selection, which relies on the storage, retrieval, and adaptation of example cases. We focus on cases of coordinated attacking passes(More)
Content-based approaches to music retrieval are of great relevance as they do not require any kind of manually generated annotations. In this paper, we introduce the concept of structure fingerprints, which are compact descriptors of the musical structure of an audio recording. Given a recorded music performance, structure fingerprints facilitate the(More)