Jorge Wagner

We present the construction process of a large Web corpus for Brazilian Portuguese, aiming to achieve a size comparable to the state of the art in other languages. Expand

We present a new modeling for this problem, accounting for the two factors whose interplay determine the impact on the overall task performance:The difference in errors introduced by performing dimensionality reduction to 2D or 3D, and the difference in human perception errors under different visualization conditions. Expand

In this work, we implement and evaluate an alternative data exploration metaphor where the user remains seated and viewpoint change is only realisable through physical movements. Expand

A Space-Time Cube enables analysts to clearly observe spatio-temporal features in movement trajectory datasets in geovisualization. Expand

This paper proposes a framework for automatic generation of large corpora classified by readability. Expand

The VirtualDesk metaphor is an opportunity for more comfortable and efficient immersive data exploration, using tangible interaction with the analyst's physical work desk and embodied manipulation of mid-air data representations. Expand

We compare different Machine Learning classifiers for the task of readability assessment focusing on Portuguese and English, analysing the impact of variables like the feature inventory used in the resulting corpus. Expand