Renato Haber

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This paper reviews the first year of the creation of a publicly available treebank for Portuguese, Floresta Sintá(c)tica, a collaboration project between the VISL and the Computational Processing of Portuguese projects. After briefly describing the main goals and the organization of the project, the creation of the annotated objects is presented in detail:(More)
In this paper I present briefly Linguateca, an infrastructure project for Portuguese which is ten years old, and will show how it provides several possibilities to study grammatical and semantical differences between varieties of the language. After a short history of Portuguese corpus linguistics, presenting the main projects in the area, I discuss in some(More)
The development of a better system for a HVAC system promises savings of energy and conservation of resources. Predictive Functional Control is applied for the temperature control in order to achieve a better control performance than with a PI(D) control. The research work is the result of cooperation with the company A. Nattermann & Cie GmbH and the(More)
With intermittently operated municipal waste water plants the aeration switching sequence should be optimized under the constraints that the solved nitrogen concentration in effluent has to be kept within its environmental limits. This is a highly nonlinear control problem because of the nonlinear biological process model ASM1 (Activated Sludge Model 1),(More)
In the presented paper two quality parameters are used to represent the state of a heat exchanger. The remaining lifetime can be estimated by trend regression. Also of interest is the uncertainty of the predicted lifetime which is determined by the confidence interval of the parameter estimation. These algorithms developed are used in this paper in an(More)
With increasing number of variables the Hotelling's T<sup>2</sup> statistic can detect only larger failures in the variables. A new method is introduced for reducing the dimension of the Hotelling's statistic in order to detect smaller failures. The basic idea is to group some variables into a combined variable and to calculate the T<sup>2</sup> value from(More)
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