Search results for " Truth"

Introduction to the special issue on Empirical Data and Pragmatic Theory

2008

Probabilistic and fuzzy logic in clinical diagnosis

2007

In this study I have compared classic and fuzzy logic and their usefulness in clinical diagnosis. The theory of probability is often considered a device to protect the classical two-valued logic from the evidence of its inadequacy to understand and show the complexity of world [1]. This can be true, but it is not possible to discard the theory of probability. I will argue that the problems and the application fields of the theory of probability are very different from those of fuzzy logic. After the introduction on the theoretical bases of fuzzy approach to logic, I have reported some diagnostic argumentations employing fuzzy logic. The state of normality and the state of disease often figh…

Prospettive dialettiche intorno alla definizione del fenomeno mafioso

2023

Il fenomeno mafioso non nasce certo con l’istituzione della legge n. 646, del 13 settembre 1982, fortemente voluta da Pio La Torre e approvata, non già dopo la sua morte (il 30 aprile del 1982) ma solo all’indomani della strage di via Carini, dove persero la vita il prefetto di Palermo Carlo Alberto Dalla Chiesa, la giovane moglie Emanuela Setti Carraro e l’agente di scorta Domenico Russo. Ma in quella data viene dato un nome e un riconoscimento giuridico – suggellato in uno specifico articolo del codice penale, il 416bis – a un fenomeno criminale risalente nel tempo. Su queste diverse prospettive, sulla tardività del parlamento nel legiferare in questa materia e sulle battaglie dialettiche…

Automatic segmentation of the spine by means of a probabilistic atlas with a special focus on ribs suppression. Preliminary results

2015

Spine is a structure commonly involved in several prevalent diseases. In clinical diagnosis, therapy, and surgical intervention, the identification and segmentation of the vertebral bodies are crucial steps. However, automatic and detailed segmentation of vertebrae is a challenging task, especially due to the proximity of the vertebrae to the corresponding ribs and other structures such as blood vessels. In this study, to overcome these problems, a probabilistic atlas of the spine, including cervical, thoracic and lumbar vertebrae has been built to introduce anatomical knowledge in the segmentation process, aiming to deal with overlapping gray levels and the proximity to other structures. F…

Weakly supervised alignment of multisensor images

2015

Manifold alignment has become very popular in recent literature. Aligning data distributions prior to product generation is an appealing strategy, since it allows to provide data spaces that are more similar to each other, regardless of the subsequent use of the transformed data. We propose a methodology that finds a common representation among data spaces from different sensors using geographic image correspondences, or semantic ties. To cope with the strong deformations between the data spaces considered, we propose to add nonlineari-ties by expanding the input space with Gaussian Radial Basis Function (RBF) features with respect to the centroids of a partitioning of the data. Such featur…

Many-valued Logics and Quantum Mechanics

2013

Stereo Matching Tecniques for Cloud-top Height Retrieval

2006

This paper presents an ongoing study for the estimation of the cloud-top height by using only geometrical methods. It is based on the hypothesis that an infra-red camera is on board a satellite and pairs of images concern nearly the same scene. Stereo-vision techniques are therefore explored in order to test the methodology for height retrieval and in particular results of several techniques of stereo matching are evaluated. This study includes area-based matching algorithms by implementing the basic versions, without considering any further steps of optimisation to improve the results. Dense depth maps are the final outputs whose reliability is verified by computing error statistics with r…

Quali forme di narrazione per eventi come la Shoah? Sulla tropologia di Hayden White.

2023

The critical debate resulting from the rhetorical or linguistic turn brings out within historical research a tension between narrative and documentation that, to the risk of making the boundary between history and the novel implied by the centrality of the role of narrative increasingly evanescent, counterpoints an appeal to the status of evidence, invoked by some historians, which in turn is not without its criticality. In particular, we take as a point of departure Hayden Whyte's Forms of History from Reality to Narrative, in which historiographical research is characterized with reference to the ability to follow those organizing principles peculiar to literary experiments as modes of hi…

Narrating the Unspeakable The Use of Metaphor between Hayden White and Hannah Arendt

2023

The paper addresses the question of the use of metaphors and analogies for events such as the Holocaust in the context of the discourse on the reduction of historiography to its narrative or rhetorical dimension and reflects on the philosophical implications of this reduction with respect to the question of post-truth. The critical debate resulting from the rhetorical or linguistic turn brings out within historical research a tension between narrative and documentation that, to the risk of making the boundary between history and the novel implied by the centrality of the role of narrative increasingly evanescent, counterpoints an appeal to the status of evidence, invoked by some historians,…

Modelling of ERS-2 radar backscattering over rocky arid regions

2003

This paper discusses the potential of radar signals to characterize stone cover over bare soil surfaces in arid rocky regions. Ground truth and radar measurements were made over two arid sites: Avdat (Israel) and Foumtillich (Morocco). An empirical approach is proposed to derive stone cover percentage from pin profiler measurements. A numerical Moment method based on integral equations of backscattering has been used to study the influence of stone cover on simulated radar signal. The results of the simulations are compared with European Remote Sensing Satellite (ERS-2) radar measurements over test areas with different stone covers. Excellent agreement is observed between numerical simulati…