Previous work on the YAPPR plan recognition system provided algorithms for translating conventional HTN plan libraries into lexicalized grammars and treated the problem of plan recognition as one of parsing. To produce these grammars required a fixed bound for any loops within the grammar and a presented a problem for optional actions within HTN plans. In this work we show that well known trans...

We consider the choices available to a defined contribution (DC) pension plan member at the time of retirement for conversion of his pension fund into a stream of income in retirement. In particular, we compare the purchase at retirement age from a life office of a conventional life annuity (that is, a bond-based investment) with distribution programmes that involve differing exposures to equit...

We investigate planning in time-critical domains represented as Markov Decision Processes. To reduce the computational cost of the algorithm we execute actions as we construct the plan, and sacrifice optimality by searching to a fixed depth and using a heuristic function to estimate the value of states. Although this paper concentrates on the search procedure, we also discuss ways of constructi...

This article investigates the business cycle implications of the planning phase of business investment projects. Time to plan is built into a Kydland-Prescott time-to-build model, which assumes that investment projects take four periods to complete. In the Kydland-Prescott time-to-build model, resources for these projects flow uniformly across the four periods; in the time-to-plan model, few re...

Frame-based stereotactic radiosurgery (SRS) requires fixation of an invasive head ring to ensure accurate targeting. Minimizing waiting time with a fixed head ring is important for patient comfort and satisfaction. We report a practical preplanning solution for the Brainlab iPlan treatment planning system that reduces waiting time by expediting the planning process on treatment day. A water-fil...

A fixed-time nonlinear circular guidance law that satisfies the impact time constraint is proposed. By utilizing geometric principle length of a arc connecting missile and target can be analytically calculated, exact expression time-to-go obtained. Thus, error shaped to zero, intercept at desired time, which crucial in salvo attack. The settling proved bounded by fixed does not depend on initia...

The centralized power generation infrastructure that defines the North American electric grid is slowly moving to distributed architecture due explosion in use of renewable and energy resources (DERs), such as residential solar, wind turbines battery storage. Furthermore, variable pricing policies profusion flexible loads entail frequent severe changes outputs required from individual units, re...