Search results for "evaluation"
showing 10 items of 1974 documents
An evaluation of recent local image descriptors for real-world applications of image matching
2019
This paper discusses and compares the best and most recent local descriptors, evaluating them on increasingly complex image matching tasks, encompassing planar and non-planar scenarios under severe viewpoint changes. This evaluation, aimed at assessing descriptor suitability for real-world applications, leverages the concept of approximated overlap error as a means to naturally extend to non-planar scenes the standard metric used for planar scenes. According to the evaluation results, most descriptors exhibit a gradual performance degradation in the transition from planar to non-planar scenes. The best descriptors are those capable of capturing well not only the local image context, but als…
Investigating Avatar Influence on Perceived Cognitive Load and Bimanual Interactions with Touchless Interfaces
2017
In recent years, touchless-enabling technologies have been more and more adopted for providing public displays with gestural interactivity. This has led to the need for novel visual interfaces aimed at solving issues such as communicating interactivity to users, as well as supporting immediate usability and "natural" interactions. In this paper, we focus our investigation on a visual interface based only on the use of in-air direct manipulations. Our study aims at evaluating whether and how the presence of an Avatar that replays user’s movements may decrease the perceived cognitive workload during interactions. Moreover, we conducted a brief evaluation of the relationship between the presen…
Retinal image synthesis through the least action principle
2020
Eye fundus image analysis is a fundamental approach in medical diagnosis and follow-up ophthalmic diagnostics. Manual annotation by experts needs hard work, thus only a small set of annotated vessel structures is available. Examples such as DRIVE and STARE include small sets for training images of fundus image benchmarks. Moreover, there is no vessel structure annotation for a number of fundus image datasets. Synthetic images have been generated by using appropriate parameters for the modeling of vascular networks or by methods developing deep learning techniques and supported by performance hardware. Our methodology aims to produce high-resolution synthetic fundus images alternative to the…
Piecewise planar underwater mosaicing
2015
A commonly ignored problem in planar mosaics, yet often present in practice, is the selection of a reference homography reprojection frame where to attach the successive image frames of the mosaic. A bad choice for the reference frame can lead to severe distortions in the mosaic and can degenerate in incorrect configurations after some sequential frame concatenations. This problem is accentuated in uncontrolled underwater acquisition setups as those provided by AUVs or ROVs due to both the noisy trajectory of the acquisition vehicle — with roll and pitch shakes — and to the non-flat nature of the seabed which tends to break the planarity assumption implicit in the mosaic construction. These…
Brevi notazioni sul sistema di valutazione dei dirigenti pubblici
2021
In the regulatory evolution on the evaluation of public management, it is possible to grasp a 'paradigm shift', which, if we applied the considerations of Thomas S. Kuhn, would allow us to say that we are facing an epochal turning point, a revolution in fact . With this we want to underline the change in perspective that characterizes the reform intervention that took place with the d. lgs. 150 of 2009.
METHODOLOGICAL PROPOSAL TO EVALUATE THE HUMAN RIGHTS APPROACH IN PUBLIC POLICIES. A CASE STUDY OF OPEN GOVERNMENT PUBLIC POLICY IN MEXICO AND ITALY
2022
La investigación parte de la premisa de que para una mayor correspondencia de los procesos de política pública con los requerimientos de la sociedad contemporánea, éstos deben desarrollarse en un entorno policontextual y policéntrico. Es decir, en escenarios en los que se propicie su apertura a los diferentes contextos sociales y la intervención de diversos actores. En atención a esto, se optó por efectuar un estudio de tipo analítico-sintético, que involucrara las variables de enfoque de derechos humanos—relacionada con el policontextualismo y policentrismo de una acción— y la de política pública—relativa a la técnica/método conforme a la cual se desarrolla de forma sistemática la acción p…
La valutazione nei settori disciplinari dell'area di Scienze dell'antichità
2019
Si illustrano gli aspetti salienti della valutazione della ricerca nell'ambito dell' Antichistica, i risultati della VQR, e le peculiarità dei prodotti dell'area 10. The main aspects of the evaluation of research in the field of Antiquities, the results of the VQR, and the peculiarities of the products of the area 10 are illustrated.
L'esperienza della VQR per l'Area 10. Procedure e organizzazione interne
2019
Riflessioni sulla valutazione della ricerca VQR Reflections on the evaluation of VQR research
ANALYZING VIDEOGAMES TO LEARN HOW TO THINK CRITICALLY
2013
The reflections contained in this research work deal with the educational challenge launched by the cultural and social phenomenon of videogames, which have become more than pure forms of entertainment and fun, more and more metaphors of the big game of the reality of life. Many of the earliest scholarly studies emanated from the research laboratories of pedagogical departments were typically concerned with the possible effect of games and young players. For a long time videogames have been forgotten as educative medium because they have been considered as mere trifles – low art – carrying none of the weight, gravitas or credibility of more traditional media. The seemingly bewildering varie…
Narrare con il COVID19. Storie di qualità per i bambini della prima infanzia
2020
This contribution aims to offer a reflection on storytelling in early childhood. It plays a fundamental role in training and development of the person, especially as far as emotion is concerned, as it constitutes an attempt to translate part of one's inner world into words, thanks to the aid of a literary genre that allows one to represent and socialize it in culturally defined ways. The training process is always peculiarly narrative: one tells and everyone expresses himself; the training process is intrinsically relational and in this very relationality the negotiation of one's self with that of others is an element of vital importance. In this sense, storytelling can be considered valid …