Research in natural language processing (NLP) has both scientific and technological dimensions. In both cases, it is necessary to evaluate the implemented systems in order to assess the success of a study. This article, grounded in the ISO framework for software evaluation, introduces a typology of NLP systems based on the role of language as input or output data, in order to analyze the centra...

We study metrics on the shape space of curves that induce a prescribed splitting of the tangent bundle. More specifically, we consider reparametrization invariant metrics G on the space Imm(S,R) of parametrized regular curves. For many metrics the tangent space TcImm(S ,R) at each curve c splits into vertical and horizontal components (with respect to the projection onto the shape space Bi(S ,R...

In this work the spaces of Riemannian metrics on a closed manifold M are studied. On the space M of all Riemannian metrics on M the various weak Riemannian structures are defined and the corresponding connections are studied. The space AM of associated metrics on a symplectic manifold M,ω is considered in more detail. A natural parametrization of the space AM is defined. It is shown, that AM is...

We investigate the notion of distance on domains. In particular, we show that measurement is a fundamental concept underlying partial metrics by proving that a domain in its Scott topology is partially metrizable only if it admits a measurement. Conversely, the natural notion of a distance associated with a measurement not only yields meaningful partial metrics on domains of essential importanc...

A procedure to select the most relevant metrics for assessing the ecological condition of the Douro basin (north Portugal) was developed based upon a set of 184 benthic community metrics. They were grouped into 16 biological categories selected from literature using data collected over 2 years from 54 sites along 31 rivers covering the whole perceived range of human disturbance. Multivariate an...

Performance management seems to be essential in business area and is also an exciting topic. Despite significant and myriads of research efforts, performance management guide today as a rigorous approach is still in an immature state and metrics are often selected based on intuitive and heuristic approach. In R&D side, the difficulty to guide the proper performance management is even more incre...

A rich and diverse set of potential bibliometric and scientometric predictors of research performance quality and importance are emerging today — from the classic metrics (publication counts, journal impact factors and individual article/author citation counts) to promising new online metrics such as download counts, hub/authority scores and growth/decay chronometrics. In and of themselves, how...

We construct new complete, compact, inhomogeneous Einstein metrics on S sphere bundles over 2n-dimensional Einstein-Kähler spaces K2n, for all n ≥ 1 and all m ≥ 1. We also obtain complete, compact, inhomogeneous Einstein metrics on warped products of S with S bundles over K2n, for m > 1. Additionally, we construct new complete, noncompact Ricci-flat metrics with topologies S times R bundles ove...