Figure 2: Electric eld in layered and inhomogenous(linear proole) meida. The evolution of the transmitted pulse in hte inhomogenous layer can be seen.

The intention of the paper is to show the applicability of the general categorical framework of open maps to the setting of real-time models of concurrency, in order to transfer general concepts of equivalences to the models. In particular, we define a category of timed higher dimensional automata (timed HDA), whose morphisms are to be thought of as simulations, and an accompanying (sub)categor...

Transition matrices are an important determinant for risk management and VaR calculations in credit portfolios. It is well known that rating migration behavior is not constant through time. It shows cyclical behavior and significant changes over the years. We investigate the effect of changes in migration matrices on credit portfolio risk in terms of Expected Loss and Value-at-Risk figures for ...

This paper will describe the creation of an ontology to model information contained in historical documents. It will describe the structure of the RDF/OWL ontology and how the model facilitated the expression and analysis of implicit and hidden information/associations existing in the sources. Some aspects of data processing and delivery based on the ontology, like the generation of indices and...

OF THE MANY FORMS OF REALIA AT THE DISPOSAL of the French teacher, the feature film can be the most engaging and rewarding. Nothing holds students' attention quite like a movie or gives them as vivid an experience of France, short of going abroad. Moreover, movies can furnish glimpses of milieus and personalities the average tourist or student rarely encounters. Instructors have been quick to m...

The role of computational methods in the determination of authorship of historical manuscripts is considered. During the last few years the computational forensics community has developed automation tools for forensic document examination, in particular for determining whether a given handwriting specimen can be attributed to known writing. We describe how these methods can be used with histori...

In this paper we present the PRiSMHA project, whose main goal is to demonstrate that a rich semantic representation of the content of historical documents is useful since it can significantly improve the access to archival resources and sustainable thanks to a crowdsourcing approach. This goal poses interesting research challenges, both for the semantic model definition and the user interaction...

The extraction of relevant information from historical document collections is one of the key steps in order to make these documents available for access and searches. The usual approach combines transcription and grammars in order to extract semantically meaningful entities. In this paper, we describe a new method to obtain word categories directly from non-preprocessed handwritten word images...

This paper describes the system WHUSUM we developed to participate in the update summarization task of TAC 2009. Given a topic and corresponding topic statement, this year's task is to write 2 summaries (one for Document Set A and one for Document Set B) that meet the information need expressed in the topic statement. In order to generate a topic-oriented summary for Set A, We present a co-trai...

The evolution of infrastructure networks such as roads and streets are of utmost importance to understand the evolution of urban systems. However, datasets describing these spatial objects are rare and sparse. The database presented here represents the road network at the french national level described in the historical map of Cassini in the 18th century. The digitization of this historical ma...