When grasping an object, subjects tend to look at the contact positions of the digits (A. M. Brouwer, V. H. Franz, D. Kerzel, & K. R. Gegenfurtner, 2005; R. S. Johansson, G. Westling, A. Bäckström, & J. R. Flanagan, 2001). However, these contact positions are not always visible due to occlusion. Subjects might look at occluded parts to determine the location of the contact positions based on ex...

This paper investigates problems of disease prevention and epidemic control (DPEC), in which we optimize two sets of decisions: (i) vaccinating individuals and (ii) closing locations, given respective budgets with the goal of minimizing the expected number of infected individuals after intervention. The spread of diseases is inherently stochastic due to the uncertainty about disease transmissio...

This paper investigates problems of disease prevention and epidemic control (DPEC), in which we optimize two sets of decisions: (i) vaccinating individuals and (ii) closing locations, given respective budgets with the goal of minimizing the expected number of infected individuals after intervention. The spread of diseases is inherently stochastic due to the uncertainty about disease transmissio...

We investigated how the size and distribution of wild deer and feral pigs - species that might act as potential foot-and-mouth disease (FMD) virus maintenance hosts - might affect the persistence and spread of FMD. We used a susceptible-latent-infected-recovered geographic-automata model and spatially referenced data from southern Texas, USA. Within this study area, 100 locations were randomly ...

We examine the impact of a firm’s geographic location on its takeover likelihood with a sample of U.S. public firms from 1980 to 2005. We first show that firms located in an urban area are 8.3% more likely to receive a takeover bid and 10.5% more likely to complete the takeover transaction than firms located in a non-urban area. Our findings are robust after controlling for various firm charact...

While chapter 8 studies the research philosophy behind a location-based social network (LBSN) from the point of view of users, this chapter gradually explores the research into LBSNs from the perspective of locations. A series of research topics are presented, with respect to mining the collective social knowledge from many users’ GPS trajectories to facilitate travel. On the one hand, the gene...

We present a calculus for representing and reasoning about the location of rigid objects which may move within some region (we will speak ofmobile parts). The calculus has both a mereological primitive and a morphological one, hence the title of the paper. We present an axiomatisation for congruence, our chosen morphological primitive, define the notion of mobile part, describe a subset of morp...

Nearly all spatial reasoning problems in­ volve uncertainty of one sort or another. Uncertainty arises due to the inaccuracies of sensors used in measuring distances and angles. We refer to this as directional un­ certainty. Uncertainty also arises in com­ bining spatial information when one loca­ tion is mistakenly identified with another. We refer to this as recognition uncertainty. Most prob...

Hydatid disease is caused by Echinococcus granulosus and is endemic in many parts of the world, including Iran. This parasitic tapeworm can produce cysts in almost every organ of the body, with the liver and lung being the most frequently targeted organs. However, the cyst tends to appear in different and sometimes unusual body sites in various geographical areas of the world. This revi...