Abstract This paper presents an automated approach for providing ranked lists of outliers in observed demand to support analysts network revenue management. Such management, e.g. railway itineraries, needs accurate forecasts. However, across or parts a complicate forecasting, and the structure makes such hard detect. We propose two-step combining clustering with functional outlier detection ide...

This paper analyses the problem of sub-national revenue mobilization in Peru and proposes several policy reforms to improve collection performance while maintaining a sound revenue structure. We analyze the current revenues of regional and municipal governments and identify the main priorities of reform. Among the most important problems are the acute inequalities and inefficiencies associated ...

This paper studies a multi-stage stochastic programming model for large-scale network revenue management. We solve the model by means of the so-called Expected Future Value (EFV) decomposition via scenario analysis, estimating the impact of the decisions made at a given stage on the objective function value related to the future stages. The EFV curves are used to define bid prices on bundles of...

Clustering protocols have proven to increase the network throughput, reduce delay in packet transfer and save energy. Hence, in this work, we propose a novel clustering protocol that uses firefly algorithm inspired approach towards improving the existing basic LEACH protocol for reduction in steady-state energy consumption, aiming to enhance the network lifetime. The simulated results prove tha...

Received Jul 18, 2007; Accepted Dec 7, 2007 Correspondence to: T. Nakao, Department of Health Policy and Management, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, 1–1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan (e-mail: [email protected]) Earplug-Type Earphone with Built-in Microphone Improves Monosyl lable Intelligibil...

We obtain revenue guarantees for the simple pricing mechanism of a single posted price, in terms of a natural parameter of the distribution of buyers’ valuations. Our revenue guarantee applies to the single item n buyers setting, with values drawn from an arbitrary joint distribution. Specifically, we show that a single price drawn from the distribution of the maximum valuation Vmax = max{V1, V...