Advent of multiple radio technologies has led to widespread use of mobile terminals for different communication needs. When a wireless mobile terminal has a choice of reaching a node via multiple interfaces, selection of which interface to use is based on network quality metrics such as average available bandwidth. This paper presents fast ways of comparing average path quality between multiple...

We investigate the problem of finding a minimal volume parallelepiped enclosing a given set of n threedimensional points. We give two mathematical properties of these parallelepipeds, from which we derive two algorithms of theoretical complexity O(n6). Experiments show that in practice our quickest algorithm runs in O(n2) (at least for n 105). We also present our application in structural biolo...

This paper describes an experiment that was conducted to evaluate three interaction techniques aiming at interacting with large virtual environments using haptic devices with limited workspace: the Scaling technique, the Clutching technique, and the Bubble technique. Participants were asked to paint a virtual model as fast and as precisely as possible inside a CAVE, using a “desktop” haptic dev...

Two people have a full B-gallon jug of wine and two empty jugs of capacity M and S, respectively, where B= M +S. Any jug may be poured into any other jug until either the first one is empty or the second is full. What is the quickest way for them to divide the wine equally? We solve this problem and show that a natural related problem may be solved in polynomial time.

Today, thoracic surgeons routinely perform complex operations on even the most complicated patient. However, just 75 years ago the ability to operate within the chest was strictly limited to only the simplest and quickest procedures. The dramatic advances in the specialty of thoracic surgery have closely paralleled the introduction of new anesthetic practices, equipment and drugs. This review w...

We show that the optimal decision policy for several types of Bayesian sequential detection problems has a threshold switching curve structure on the space of posterior distributions. This is established by using lattice programming and stochastic orders in a partially observed Markov decision process (POMDP) framework. A stochastic gradient algorithm is presented to estimate the optimal linear...

We show that the optimal decision policy for several types of Bayesian sequential detection problems has a threshold switching curve structure on the space of posterior distributions. This is established by using lattice programming and stochastic orders in a partially observed Markov decision process (POMDP) framework. A stochastic gradient algorithm is presented to estimate the optimal linear...

The problem of sequential detection of anomalies in multimodal data is considered. The objective is to observe physical sensor data from CCTV cameras, and social media data from Twitter and Instagram to detect anomalous behaviors or events. Data from each modality is transformed to discrete time count data by using an artificial neural network to obtain counts of objects in CCTV images and by c...

In this paper, we present a graphical decision support tool to aid in analyzing the U. S. air transport network. In addition to displaying simple statistics, our tool can calculate the predictions of both the minimum-delay and quickest routes for a given origin and destination airport using regression, simulation and network optimization techniques. Using various visualizations allow for less o...

UDC: 338.48-44(1-21)(680) Already an enormous global industry, tourism seems to offer the quickest route to economic and social development of emerging nations. This has been no different for South Africa given the growing interest of international travellers to visit the country and its cities. Tourism is of significant importance to the South African economy as it contributes almost 7.4% to G...