Simulation is one of the most powerful tools we have for evaluating the performance of Opportunistic Networks. In this survey, we focus on available tools and models, compare their performance and precision and experimentally show the scalability of different simulators. We also perform a gap analysis of state-of-the-art Opportunistic Network simulations and sketch out possible further developm...

When animals are transported and pass through customs, some of them may have dangerous infectious diseases. Typically, due to the cost of testing, not all animals are tested: a reasonable selection must be made. How to test effectively whilst avoiding costly disease outbreaks? First, we extend a model proposed in the literature for the detection of invasive species to suit our purpose, and we d...

Dialogue act modeling in task-oriented dialogue poses significant challenges. It is particularly challenging for corpora consisting of two interleaved communication streams: a dialogue stream and a task stream. In such corpora, information can be conveyed implicitly by the task stream, yielding a dialogue stream with seemingly missing information. A promising approach leverages rich resources f...

The productivity paradox of information technology has said to be one of the most difficult problem of computing field. We must try to improve productivity of both computing applications and software industry. It is therefore vital to identify and differentiate productive efforts from non-productive ones. In this paper we develop two frameworks for analysis of tasks in the development of inform...

INTRODUCTION Those installations concerned with providing an improved array of IT products and services to their customers should seriously consider a “gap analysis” approach to information technology (IT) management. This process offers a straightforward, non-complex process to improve several areas of the IT function. Gap analysis can be completed quickly and inexpensively, in contrast to oth...

Logic provides a rich and uniform framework in which Information Retrieval can be modeled. The ability of logical approaches to give rise to more general Information Retrieval models is promising. However no much experimentation has been carried out about the real impact of logical representations on retrieval performance. This work is an attempt to fill this gap. Our work is based on a recent ...

This article addresses the problem of manipulation planning in the presence of uncertainty. We begin by reviewing the worst-case planning techniques introduced by Lozano-Pérez et al. (1984) and show that these methods are limited by an information gap inherent to worst-case analysis techniques. As the task uncertainty increases, these methods fail to produce useful information, even thou...