We consider the Dynamic Map Visitation Problem (DMVP), in which a team of agents must visit a collection of critical locations as quickly as possible, in an environment that may change rapidly and unpredictably during the agents’ navigation. We apply recent formulations of time-varying graphs (TVGs) to DMVP, shedding new light on the computational hierarchy R ⊃ B ⊃ P of TVG classes by analyzing...

Because a multicast data server or broadcast disk can have clients of very different network capacities, the server needs to offer its repository of data items at a variety of transmission speeds to service clients’ varied requests. In this paper, we study how to slice a server’s available outgoing network capacity into data channels, how to assign the server’s data to those channels, and how t...

The current sustainability labeling landscape has been accused of creating unnecessary consumer confusion due to too much, complex, similar, and ambiguous information. Meta-sustainability is proposed as a solution. We provide the first evidence on added value this instrument based survey in USA (N = 518) Germany 520). Participants were randomly allocated one four different conditions: (1) tradi...

Lexical choices in descriptions of the spatial world around us are affected not only by geometry, but also by variables such as situational context and the extent to which the spatial relations between the objects referred to are seen as consistent with their typical function. In a study of how people describe complex scenes with multiple objects we examined whether descriptive choices (both lo...

In this paper, we present a group pattern mining approach to derive the grouping information of mobile device users based on a trajectory model. Group patterns of users are determined by distance threshold and minimum time duration. A trajectory model of user movement is adopted to save storage space and to cope with untracked or disconnected location data. To discover group patterns, we propos...