Introduction Suppose you are determined to “prove” that green apples cause cancer. An Optional Stopping strategy (OS) is where you keep looking sampling experimental data until the observed correlation between eating green applies and cancer is significantly different from 0 (where “significantly” means that the null hypothesis is rejected by standard statistical tests). That is, you follow a r...

This paper deals with the transient analysis of batch arrival retrial queueing system with general retrial times, priority service, balking, second optional service, Bernoulli vacation, extended vacation, breakdown, delayed repair and stand by server. Here we assume that customers arrive in batches according to compound Poisson processes, where the blocked customers either with probability p jo...

Web Processing Services (WPS) expose processing functionality using Web Service technology. The WPS specification describes the interfaces to publish geospatial processes on the Web. It includes a platform-neutral and several platform-specific versions of its interfaces. Some of the platform-specific interfaces are mandatory and others are optional. In this paper, we present a method to support...

A repairable 1 M G / / retrial queue with general retrial times, Bernoulli vacation, setup times and two-phase service is investigated in this paper. Customers are allowed to balk and renege at particular times. We assume that the customers who find the server busy or down are queued in the orbit in accordance with a first-come-first-served (FCFS) discipline. All customers demand the first “ess...

We propose to use variability techniques from the realm of product lines to help make service specifications more flexible. Feature diagrams provide a high-level model of the essential and optional aspects of services in combination with detailed models of service’s semantics based on visual contracts specified by graph transformation rules. In this way we hope to provide a precise, yet flexibl...

Service-learning is an experience-based approach to education and learning that has a set of diverse learning outcomes. Because of the uniqueness of its pedagogical approach and breadth of potential learning outcomes, management and business scholars have recognized its value. Much theory and supporting research has been generated on the effect of service-learning on college and university stud...

This document is one of a set of documents that together describe all aspects of the Internet Printing Protocol (IPP). IPP is an application-level protocol that can be used for distributed printing on the Internet. There are multiple parts to IPP, but the primary architectural components are the Model, the Protocol, and an interface to Directory Services. This document provides a statement of t...

With the recent diffusion of broadband services, IP telephony is expected to spread significantly in Japan. This paper investigates the demand for IP telephony by using conjoint analysis. Projecting IP telephony demand also contributes to Japanese info-communication policy discussions. Two points are made. First, IP telephony is still currently considered an optional supplement or an add-on ser...