A central problem in wireless packet networks is the efficient resolution of collisions among nodes with independent transmission schedules. Natural metrics for measuring the efficiency of any collision resolution scheme include total time taken for collision resolution, average participation time of each transmitter during contention resolution, average number of transmissions made by a transm...

This paper examines tuning for statistical machine translation (SMT) with respect to multiple evaluation metrics. We propose several novel methods for tuning towards multiple objectives, including some based on ensemble decoding methods. Pareto-optimality is a natural way to think about multi-metric optimization (MMO) and our methods can effectively combine several Pareto-optimal solutions, obv...

The main goal of this paper is to compute (up to a moduli-independent constant factor) determinants of Laplacians in flat metrics with conic singularities on compact Riemann surfaces. We consider two classes of metrics: the Ströbel metrics and metrics given by modulus square of a holomorphic differential. For the latter case, if all conic angles equal 4π, our formulas essentially coincide with ...

There has been considerable work done in the study of Web reference streams: sequences of requests for Web objects. In particular, many studies have looked at the locality properties of such streams, because of the impact of locality on the design and performance of caching and prefetching systems. However, a general framework for understanding why reference streams exhibit given locality prope...

1. Reference (i.e. least or minimally impaired) sites can provide important information about the expected range of biological metrics and can be used to establish impairment or non-impairment of a test site. A problem with using reference data is that biological metrics are affected by natural conditions. We present an approach that uses local information to adjust for natural conditions and a...

Search Based Software Engineering (SBSE) uses fitness functions to guide an automated search for solutions to challenging software engineering problems. The fitness function is a form of software metric, so there is a natural and close interrelationship between software metics and SBSE. SBSE can be used as a way to experimentally validate metrics, revealing startling conflicts between metrics t...

Topological metrics of graphs provide a natural way to describe the prominent features of various types of networks. Graph metrics describe the structure and interplay of graph edges and have found applications in many scientific fields. In this work, the use of graph metrics is employed in network estimation by developing optimisation methods that incorporate prior knowledge of a network’s top...

— In-Process testing metrics has been used from some years and its usage is frequently increasing. There are different metrics for software testing i.e to measure testing progress, Mean time between arrival of error, density of errors, fixation of errors, failure rate, test execution Productivity, cost of defects, Test efficiency and efficiency checking and so on. But all these metrics are inde...

We introduce a simple and very fast algorithm that computes Weil-Petersson metrics on moduli spaces of polarized Calabi-Yau manifolds. Also, by using Donaldson’s quantization link between the infinite and finite dimensional G.I.T quotients that describe moduli spaces of varieties, we define a natural sequence of Kähler metrics. We prove that the sequence converges to the Weil-Petersson metric. ...

Quality assessment plays a very important role in almost all aspects of multimedia signal processing such as acquisition, coding, display, processing etc. Several objective quality metrics have been proposed for images, but video quality assessment has received relatively little attention. Most of the video quality metrics in the literature are simple extensions of metrics for images. In this p...