JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected].

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in Latin America on document digitalization, enhancement, compression, indexing, retrieval and network transmission of historical document images.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The National Taiwan University Library has built a digital library of historical documents about Taiwan.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...

Decadal variability of the East African precipitation during the season of March–May (long rains) is examined and the performance of a series of models in simulating the observed features is assessed. Observational results show that the drying trend of the long rains is associated with decadal natural variability associated with sea surface temperature (SST) variations over the Pacific Ocean. E...

OBJECTIVES Evaluate the course of the International Union for Circumpolar Health (IUCH) and the Proceedings of the International Congress(s) on Circumpolar Health (ICCH) in the context of the concomitant historical events. Make recommendations for future circumpolar health research. STUDY DESIGN Medline search and historical archive search of ICCH Proceedings. METHODS Search of all PubMed r...

Abstract The Energy Exascale Earth System Model version 1 (E3SMv1) is a new global model that can generate weakened tropical easterly jet (TEJ) during the quasi‐biennial oscillation (EQBO) and strengthened TEJ westerly QBO (WQBO), which referred to as QBO‐TEJ teleconnection. Although longitudinal structure of teleconnection different between reanalysis simulations, we hypothesize simulations st...

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...