Finding an Evolutionarily Stable Strategy in Agent Reputation and Trust (ART) 2007 Competition

Proceedings of: 23rd International Conference on Industrial Engineering and Other Applications of Applied intelligent Systems, IEA/AIE 2010, Cordoba, Spain, June 1-4, 2010Our proposal is to apply a Game Theoretic approach to the games played in Agent Reputation and Trust Final Competitions. Using such testbed, three international competitions were successfully carried out jointly with the last AAMAS international Conferences. The corresponding way to define the winner of such competitions was to run a game with all the participants (16). Our point is that such game does not represent a complete way to determine the best trust/reputation strategy, since it is not proved that such strategy is evolutionarily stable. Specifically we prove that when the strategy of the winner of the two first international competitions (2006 and 2007) becomes dominant, it is defeated by other participant trust strategies. Then we found out (through a repeated game definition) the right equilibrium of trust strategies that is evolutionarily stable. This kind of repeated game has to be taken into account in the evaluation of trust strategies, and this conclusion would improve the way trust strategies have to be compared.This work was supported in part by Projects CICYT TIN2008-06742-C02-02/ TSI, CICYT TEC2008-06732-C02-02/TEC, SINPROB, CAM MADRINET S-0505/TIC/0255 and DPS2008-07029-C02-02.Publicad

Peran Fingering Pada Teknik Pizzicato Dan Harmonics Dalam Reinterpretasi Karya Maurice Ravel

Tujuan dari penelitian ini adalah mengetahui peran fingering pada teknik pizzicato dan harmonics dalam upaya reinterpretasi terhadap repertoar Tzigane karya Maurice Ravel. Sering kita jumpai bahwa solois menerapkan penjarian yang berbeda dari penjarian yang sudah ditentukan dalam partitur. Tidak hanya itu, perbedaan juga terjadi antara solois yang satu dan yang lainnya meskipun memainkan karya yang sama. Penelitian ini menggunakan teori yang meliputi fingering, pizzicato, harmonic dan interpretasi yang nantinya akan membantu dalam proses realisasi pada dinamika, warna suara dan artikulasi sebagai bentuk dari reinterpretasi seorang solois.  Metode Penelitian yang digunakan adalah metode kualitatif dengan pendekatan studi kasus. Kasus yang digunakan adalah teknik pizzicato dan harmonics pada repertoar Tzigane karya Maurice Ravel. Hasil penelitian menunjukkan bahwa fingering pada teknik pizzicato mempengaruhi keberhasilan solois dalam merealisasikan reinterpretasi melalui teknik. Sedangkan fingering pada teknik harmonics dapat mendukung solois dalam merubah atau menguatkan kesan musikal tertentu berdasarkan rancangan reinterpretasi (blueprint).Kata kunci : fingering, pizzicato, harmonics, reinterpretasi, Maurice Ravel. ABSTRACTThe Role Of Fingering In Pizzicato And Harmonics Techniques In Reinterpretation Of Maurice Ravel's WorksThe purpose of this study was determine the role of fingering in the pizzicato technique and harmonics in an effort to reinterpret Maurice Ravel's Tzigane repertoire. We often find that the soloist applies fingering that is different from the fingering that has been determined in the scores. Not only that, differences also occur between one soloist and another even though they play the same work. This Study used the theory that includes fingering, pizzicato, harmonics and interpretation, which will help the process of realizing dynamics, timbre and articulation as a form of reinterpretation by a soloist. The research method used is a qualitative method with a case study approach. The case used is the pizzicato technique and harmonics in Maurice Ravel's Tzigane repertoire. The results of the study show that fingering in the pizzicato technique influences the success of the soloist in realizing reinterpretation through technique. Meanwhile, fingering in harmonics techniques can support soloists in changing or strengthening certain musical impressions based on reinterpretation designs (blueprints).Keywords: fingering, pizzicato, harmonics, reinterpretation, Maurice Ravel

Air Traffic Control: A Local Approach to the Trajectory Segmentation Issue

Proceedings of: 23rd International Conference on Industrial, Engineering & Other Applications of Applied Intelligent Systems (IEA-AIE 2010) Córdoba-Spain, June 04-06, 2010This paper presents a new approach for trajectory segmentation in the area of Air Traffic Control, as a basic tool for offline validation with recorded opportunity traffic data. Our approach uses local information to classify each measurement individually, constructing the final segments over these classified samples as the final solution of the process. This local classification is based on a domain transformation using motion models to identify the deviations at a local scale, as an alternative to other global approaches based on combinatorial analysis over the trajectory segmentation domain.This work was supported in part by Projects CICYT TIN2008-06742-C02-02/TSI, CICYT TEC2008-06732-C02-02/TEC, CAM CONTEXTS (S2009/TIC-1485) and DPS2008-07029-C02-02.Publicad