1,721,034 research outputs found
UN MODELLO DI CONOSCENZA PER LA RAPPRESENTAZIONE DEL PATRIMONIO COSTRUITO
No full textNell’ambito del processo edilizio dei beni culturali, inteso come un sistema strutturato di attività finalizzate alla ricerca, la conservazione e la gestione dei beni architettonici, tutte le operazioni compiute dai diversi attori coinvolti sono profondamente influenzate dalla conoscenza derivata da una fase complessa di documentazione e l'eventuale mancanza o errata interpretazione dei dati possono portare a decisioni sbagliate e danni anche irreparabili al manufatto. Nella pratica corrente, la rappresentazione e la gestione della conoscenza legata al patrimonio costruito hanno mostrato diverse limitazioni per la difficoltà di trattare grandi quantità di dati estremamente eterogenei.
Su tali basi, la presente ricerca ha come obbiettivo quello di estendere gli approcci e le tecnologie proprie del web semantico alla modellazione della conoscenza relativa al patrimonio architettonico al fine di fornire una rappresentazione integrata e multidisciplinare del manufatto e delle conoscenze necessarie per supportare qualsiasi decisione o qualsiasi attività di indagine, interpretazione, intervento e gestione.
Per questo scopo, è stato sviluppato un sistema basato su ontologie, per rappresentare la conoscenza relativa al manufatto e suoi contesti attraverso la formalizzazione di entità specifiche per il dominio d’interesse e delle relazioni che intercorrono tre di esse. Questo approccio permette di includere in un modello coerente ed omogeneo sia le conoscenze raccolte attraverso campagne d’indagine dirette sia quelle non direttamente deducibili dal manufatto ma riconducibili ad esso (ad es. informazioni storiche o di contesto).
Infine, il modello è stato applicato al processo di ricerca e documentazione del tempio romano di Castore e Polluce a Cori e dell’Oratorio di San Saba a Roma. In questi casi di studio, la conoscenza relativa ai manufatti architettonici è stata formalizzata attraverso l’editor di ontologie Protégé, mentre è stato utilizzato un ambiente BIM per fornire una rappresentazione schematica delle sue caratteristiche fisiche.
L'introduzione di questo ambiente di modellazione vuole migliorare l’attuale rappresentazione e gestione delle informazioni nei processi legati al patrimonio costruito, passando da un approccio document-based a uno model-based. Come risultato, tutti i dati, le informazioni, e le conoscenze relative ad un edificio storico, raccolte e documentate da diverse attività di indagine saranno integrati in un unico modello esaustivo e sempre aggiornato.
Questa esperienza ha illustrato le potenzialità dell'approccio proposto per documentare e analizzare in modo innovativo l'ambiente storico costruito e per sostenere tutte le indagini, le interpretazioni e le attività di intervento ad esso correlate
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
A novel series of compositionally biased substitution matrices for comparing <it>Plasmodium </it>proteins
Full text linkAbstract Background The most common substitution matrices currently used (BLOSUM and PAM) are based on protein sequences with average amino acid distributions, thus they do not represent a fully accurate substitution model for proteins characterized by a biased amino acid composition. This problem has been addressed recently by adjusting existing matrices, however, to date, no empirical approach has been taken to build matrices which offer a substitution model for comparing proteins sharing an amino acid compositional bias. Here, we present a novel procedure to construct series of symmetrical substitution matrices to align proteins from similarly biased Plasmodium proteomes. Results We generated substitution matrices by selecting from the BLOCKS database those multiple alignments with a compositional bias similar to that of P. falciparum and P. yoelii proteins. A novel 'fuzzy' clustering method was adopted to group sequences within these alignments, showing that this method retains more complete information on the amino acid substitutions when compared to hierarchical clustering. We assessed the performance against the BLOSUM62 series and showed that the usage of our matrices results in an improvement in the performance of BLAST database searches, greatly reducing the number of false positive hits. We then demonstrated applications of the use of novel matrices to improve the annotation of homologs between the two Plasmodium species and to classify members of the P. falciparum RIFIN/STEVOR family. Conclusion We confirmed that in the case of compositionally biased proteins, standard BLOSUM matrices are not suited for optimal alignments, and specific substitution matrices are required. In addition, we showed that the usage of these matrices leads to a reduction of false positive hits, facilitating the automatic annotation process.</p
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Fabric Reinforced Cementitious Matrix (FRCM) Material for Structural Rehabilitation, Material Characterization
No full text- …
