Serpentinite rocks testify to the ocean-floor metamorphism that took place and transformed original mineralogy fabric of previous ultramafic rocks. Due their tectonic petrological importance, in recent decades, there has been increasing interest serpentinites. From economic point view, it is worth noting that, due beauty attractiveness, serpentinite have exploited traded as building ornamental ...

The increasing urbanization of the landscape is a major component global change worldwide. However, it puzzling that wildlife selecting anthropogenic habitats despite availability apparently high–quality semi–natural (i.e. less intensively modified) habitats. Definitive explanations for this process are still lacking. We have previously suggested colonization urban habitat initially triggered b...

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This paper reports on the Joaquim Nabuco Project, a pioneering work in Latin America on document digitalization, enhancement, compression, indexing, retrieval and network transmission of historical document images.

We propose a method to extract special objects in images of medieval books, which generally represent, for example, figures and capital letters. Instead of working on the single pixel level, we consider superpixels as the basic classification units for improved time efficiency. More specifically, we classify superpixels into different categories/objects by using a bag-of-features (BoF) approach...

On behalf of the entire Organization Committee, it is our pleasure to welcome you to the Twelth IEEE International Conference on Pervasive Computing and Communications (PerCom 2014), sponsored by IEEE Computer Society, the University of Texas at Arlington (UTA), Budapest University of Technology and Economics (BME) and the Scientific Associations for Infocommunications Hungary (HTE). The Procee...

The National Taiwan University Library has built a digital library of historical documents about Taiwan. The content is unique in that it covers about 80% of all primary Chinese historical materials about Taiwan before 1895, and that they are all available in searchable full text, in addition to metadata. To make these materials more accessible to the research community, we have developed, in a...

Historical document collections present unique challenges for information retrieval. In particular, the absence of consistent orthographic conventions in historical text presents difficulties for conventional search architectures which typically rely on a static inverted index keyed by orthographic form. Additional steps must therefore be taken in order to improve recall, in particular for sing...

In this work, a multi-scale binarization framework is introduced, which can be used along with any adaptive threshold-based binarization method. This framework is able to improve the binarization results and to restore weak connections and strokes, especially in the case of degraded historical documents. This is achieved thanks to localized nature of the framework on the spatial domain. The fra...

This paper describes an on-going project of transcribing and annotating digitized manuscripts of medieval Spanish with paleographic and lexical information. We link lexical units from the manuscripts with the Multilingual Central Repository (MCR), making terms retrievable by any of the languages that integrate MCR. The goal of the project is twofold: creating a paleographic knowledge base from ...