1,720,995 research outputs found
Esperienze di generalizzazione cartografica automatica in Italia: tecniche e risultati del progetto CARGEN
No full textTecniche di generalizzazione cartografica dalla grande alla media scala
No full textDal 2006 il Dipartimento di Ingegneria dell'Informazione dell'Università di Padova è coinvolto in un progetto di ricerca, chiamato CARGEN, per lo sviluppo e la sperimentazione di metodi automatici per la generalizzazione cartografica dalla grande alla media scala. In questo articolo, di seguito ad una breve introduzione sulla generalizzazione cartografica e sul progetto CARGEN, verranno presentate alcune delle tecniche di generalizzazione automatica che si stanno sperimentando all'interno del progetto per la derivazione delle scale 1:25000 e 1:50000 a partire dai dati della Regione Veneto in scala 1:5000. Le conclusioni aiuteranno a tracciare la linea di sviluppo futura del progetto e i riferimenti permetteranno al lettore interessato di approfondire gli argomenti affrontati
Le procedure per la derivazione del DB25 dal DBT della Regione del Veneto: risultati del progetto CARGEN
No full text
State of the Art in Internet of Things Standards and Protocols for Precision Agriculture with an Approach to Semantic Interoperability
Full text linkThe integration of Internet of Things (IoT) technology into the agricultural sector enables the collection and analysis of large amounts of data, facilitating greater control over internal processes, resulting in cost reduction and improved quality of the final product. One of the main challenges in designing an IoT system is the need for interoperability among devices: different sensors collect information in non-homogeneous formats, which are often incompatible with each other. Therefore, the user of the system is forced to use different platforms and software to consult the data, making the analysis complex and cumbersome. The solution to this problem lies in the adoption of an IoT standard that standardizes the output of the data. This paper first provides an overview of the standards and protocols used in precision farming and then presents a system architecture designed to collect measurements from sensors and translate them into a standard. The standard is selected based on an analysis of the state of the art and tailored to meet the specific needs of precision agriculture. With the introduction of a connector device, the system can accommodate any number of different sensors while maintaining the output data in a uniform format. Each type of sensor is associated with a specific connector that intercepts the data intended for the database and translates it into the standard format before forwarding it to the central server. Finally, examples with real sensors are presented to illustrate the operation of the connectors and their role in an interoperable architecture, aiming to combine flexibility and ease of use with low implementation costs
Distribution of Public Administration GI-based websites - towards a cross-European comparison study
No full textThe purpose of this paper is to present a comparative study of Public Administration GIbased
WEB sites (PAGIweb) and their actual and potential use in spatial government and
planning in three European Countries: Austria, Denmark, and Italy. The three case studies
are analysed according to their typology in terms of technology and information content
with regards to spatial planning and public participatio
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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