A high-quality human-robot interface is essential for the success of search and rescue operations in urban environments that are too challenging for fully-autonomous operation. Teleoperating multiple robots greatly increases the complexity of the human’s cognitive task, since the operator’s concentration is divided among multiple robots. Thus, simply adding more robots to the system does not ne...

This paper describes a vehicle to perform a simple task using a decision control composed of a behavior hierarchy. First the model is presented. It is based on two fundamental components: the behavior module defining how each behavior element is implemented; and the blocker which is the basic component of the arbitration system, responsible for behavior selection. Behavior modules are composed ...

Bayesian belief networks have grown to prominence because they provide compact representations for many problems for which probabilistic inference is appropriate, and there are algorithms to exploit this compactness. The next step is to allow compact representations of the conditional probabilities of a variable given its parents. In this paper we present such a representation that exploits con...

Recall from Unit 6 that there are three ways variable storage can be allocated in a program: statically, on the stack, or from the heap. Statically allocated variables have a lifetime equal to the entire program execution; they never die. Stack allocation is tied to function calls, so anything allocated on the stack (such as local variables within a function) will simply be de-allocated when th...

This paper shows how expectations-driven contagion of currency crises can arise even if the currency market has a unique equilibrium when viewed in isolation. The model of Morris and Shin (1998) is extended to allow speculators to trade in a second currency market. If speculators believe that a devaluation of this other currency will make a domestic devaluation more likely, they will engage in ...

Over recent years there has been considerable investment in the use of technology to identify sources of text-based plagiarism in universities. However, students of the visual arts are also required to complete numerous pieces of visual submissions for assessment, and yet very little similar work has been undertaken in the area of non-text based plagiarism detection. The Spot the Difference! pr...

In this work we study anti-unification for unranked terms and hedges, permitting context and hedge variables. Hedges are sequences of unranked terms. The anti-unification problem of two hedges s̃ and q̃ is concerned with finding their generalization, a hedge g̃ such that both s̃ and q̃ are instances of g̃ under some substitutions. Context variables are used to abstract vertical differences in the inp...

This paper presents the Snippet System, a new operating system environment that aims at providing enhanced document management facilities. For this, the proposed system utilizes a novel document model based on finer-grained entities, so-called Snippets. These support Relations, which capture the context of individual document excerpts. Snippets furthermore enable a flexible reuse of documents, ...

The aim of image restoration is to obtain a higher quality desired image from a degraded image. In this strategy, an image inpainting method fills the degraded or lost area of the image by appropriate information. This is performed in such a way so that the obtained image is undistinguishable for a casual person who is unfamiliar with the original image. In this paper, different images are degr...