Peer-to-peer file-sharing systems have poor search performance for rare or poorly described files. These files lack a quality or variety of metadata making them hard to match with queries. A server can alleviate this problem by gathering the descriptors used by peers via what we call probe queries, and use these descriptors to improve its own. We consider probe query triggering mechanisms and c...

The continuous technological development and the consistent reliance on ICT, has raised the expectations towards ubiquitous connectivity to an extent that technical failures or social disconnects are a serious threat for project teams and their performance, especially when team members are scattered around the world. We analyse hypo-connectivity, the state in which users face too few connectivi...

Reasons behind the failure and success of large-scale information systems projects continue to intrigue researchers. In particular in the airline industry very successful (passenger reservation) systems have been built which have totally changed the competitive arena of the industry. On the cargo side however attempts to implement large-scale community systems have largely failed across the glo...

The 1906 Colombia–Ecuador earthquake induced both strong seismic motions and a tsunami, the most destruc‐ tive earthquake in the history of the Colombia–Ecuador subduction zone. The tsunami propagated across the Pacific Ocean, and its waveforms were observed at tide gauge stations in countries including Panama, Japan, and the USA. This study conducted slip inverse analysis for the 1906 earthqua...

In the current context, characterized by a sort of ‘open innovation’, spin-offs phenomenon represents an innovative approach to support technological knowledge transfer and innovation processes from research organizations to industrial world. Furthermore, spin-offs could be considered an innovative strategy to follow up the results obtained within collaborative R&D (Research and Development) pr...

The accessibility of railway stations plays a crucial role in assessing service quality, predicting travel patterns, and developing infrastructure the surrounding areas. This paper proposes station index (RsAI) (external) that incorporates various parameters, including network performance, into weighted measure. We reviewed different methods for measuring levels transit systems to identify most...

A discrete-time decentralized routing problem in a service system consisting of two service stations and two controllers is investigated. Each controller is affiliated with one station. Each station has an infinite size buffer. Exogenous customer arrivals at each station occur with rate λ. Service times at each station have rate μ. At any time, a controller can route one of the customers waitin...

M. P. N. Gent, Department of Forestry and Horticulture, Connecticut Agricultural Experiment Station, New Haven 06504; J. A. LaMondia, Department of Plant Pathology and Ecology, Connecticut Agricultural Experiment Station, Windsor 06095; F. J. Ferrandino and W. H. Elmer, Department of Plant Pathology and Ecology, Connecticut Agricultural Experiment Station, New Haven 06504; and K. A. Stoner, Dep...

We consider a tandem queue with two stations. The first station is an s-server queue with Poisson arrivals and exponential service times. After terminating his service in the first station, a customer enters the second station to require service at a single server, while in the meantime he is blocking his server in station 1 until he completes service in station 2, whereupon the server in stati...