نتایج جستجو برای: time windows
تعداد نتایج: 1912785 فیلتر نتایج به سال:
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In order to study how n to 1 convergence sharpens timing information, we have used a simple time-window (TW) model in which the target neuron fires the first time it has received m action potentials in the previous εmilleseconds. Although the TW is convenient for proving theorems and Monte-Carlo simulations, it is a natural question whether it represents well the physiological reality. We first...
We consider a multicommodity routing problem, where demands are released online and have to be routed in a network during specified time windows. The objective is to minimize a time and load dependent convex cost function of the aggregate arc flow. First, we study the fractional routing variant. We present two online algorithms, called Seq and Seq. Our first main result states that, for cost fu...
Crossdocking studies have mostly been concerned with the physical layout of a crossdock or on a single crossdock. In this work, we study a network of crossdocks taking into consideration delivery and pickup time windows, warehouse capacities and inventory handling costs. Because of the complexity of the problem, local search techniques are developed and used with simulated annealing and tabu se...
Recognizing that allowing variability in scheduled flight departure times can result in improved flight connection opportunities and a more cost effective fleet assignment, we present a generalized fleet assignment model for simultaneously assigning aircraft types to flights and scheduling flight departures. Our model, a simple variant of basic fleet assignment models, assigns a time window to ...
Natural interaction in multimodal dialogue systems demands quick system response after the end of a user turn. The prediction of the end of user input at each multimodal dialog turn is complicated as users can interact through modalities in any order, and convey a variety of different messages to the system within the turn. Several multimodal interaction frameworks have used fixed-duration time...
Vehicle Routing Problem (VRP) is addressed to a class of problems for determining a set of vehicle routes, in which each vehicle departs from a given depot, serves a given set of customers, and returns back to the same depot. On the other hand, simultaneous delivery and pickup problems have drawn much attention in the past few years due to its high usage in real world cases. This study, therefo...
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