We argue that the core problem facing peer-to-peer systems is locating documents in a decentralized network and propose Chord, a distributed lookup primitive. Chord provides an efficient method of locating documents while placing few constraints on the applications that use it. As proof that Chord’s functionality is useful in the development of peer-to-peer applications, we outline the implemen...

The automatic detection and transcription of musical chords from audio is an established music computing task. The choice of chord profiles and higher-level time-series modelling have received a lot of attention, resulting in methods with an overall performance of more than 70% in the MIREX Chord Detection task 2009. Research on the front end of chord transcription algorithms has often concentr...

High-velocity free-surface flows are complex two-phase flows and limited information is available about the interactions between air and water for void fractions of about 50%. Herein a detailed experimental study was conducted in the intermediate flow region ( C ∼ 50%) on a stepped spillway and the microscopic air–water flow characteristics were investigated. The results showed differences in w...

We submit a method for theMIREX 2008 task “Audio Chord Detection”. The method uses a 24-state HMM consisting of 12 states for both major and minor triads. The observation likelihoods are computed by mapping the pitch saliences into a pitch-class representation and comparing them with trained profiles for major and minor chords. Probabilities of between-chord transitions are estimated from train...

Chord has been suggested by IETF P2PSIP working group as mandatory overlay technology in the future P2PSIP-based communication systems. Chord allows for the available peer/resource lookup in no more than log N hops, where N is the total number of the peers in the overlay network. However, as a protocol originally designed for background downloading applications, Chord has a few drawbacks when s...

The diffuser total efficiency was formulated and defined based on the generalized actuator disc model for index of diffuser-alone diffuser-augmented wind turbines. An optimization method to maximize developed using a genetic algorithm axisymmetric computational fluid dynamics. A case study conducted 10% chord-to-diameter ratio, 2% thickness-to-chord plate, crest position at 50% chord diffuser. ...

The Gaussian chord Minkowski problem is studied in this paper, which starts from the view of nonlocal functionals, and we obtain an $ o $-symmetric normalized solution. To result, use variational method to solve problem.

We studied performance of the Chord scalable lookup system with several performance enhancements. For the denser finger technique, we gave analytical result that shows the average lookup path length decreases slower than the maximum length and converges to it as finger density grows higher. Location cache, as implemented in MIT Chord, is shown to be able to reduce the lookup path length by 1/2 ...