In this paper we present a general library to reason about floating-point numbers within the Coq system. Most of the results of the library are proved for an arbitrary floating-point format and an arbitrary base. A special emphasis has been put on proving properties for exact computing, i.e. computing without rounding errors.

This paper proposes a practical approach to estimate the direct-toreverberant energy ratio (DRR) using a spherical microphone array without having knowledge of the source signal. We base our estimation on a theoretical relationship between the DRR and the coherence estimation function between coincident pressure and particle velocity. We discuss the proposed method’s ability to estimate the DRR...

One of the key issues for implementing congestion pricing is the pricing granularity (i.e. pricing interval or timescale). The Internet traffic is highly variant and hard to control without a mechanism that operates on very low time-scales, i.e. on the order of round-trip-times (RTTs). However, pricing naturally operates on very large timescales because of human involvement. Moreover, structure...

A technique for workload balancing on distributed visualization clusters is suggested. The round-robin scheduling of partial object geometry “chunks” avoids render node starvation and balances the data backlog in the send buffers of the geometry nodes. Because frame synchronization requires that all send buffers drain, balancing these send buffer backlogs is seen to substantially improve frame ...

The effect of Polarisation Mode Dispersion (PMD) on the LO reference signal phase stability and power level has been an ongoing concern, but to date no definitive study of the effect has been made. The logical argument has been made that the effect should be negligible based upon a) the presence of a round-trip phase correction, b) an LO reference that uses only 1.2 nm of optical bandwidth and ...