1,720,954 research outputs found
Formal methods for service oriented software engineering
No full textIl Service-Oriented Computing sta diventando sempre più importante e la proliferazione del grid e cloud computing sta incrementando ancora questa tendenza.
Di conseguenza, sempre più aziende stanno esponendo su Internet i loro Web
Service. Questo fatto ha l’effetto di trasformare il web da un contenitore di dati
ad un contenitore di servizi. In questo scenario, un ingegnere del software è
chiamato a progettare un’applicazione tenendo in considerazione l’opportunità/
bisogno di riusare servizi esistenti. Ciò richiede due cose: - una metodologia
di ingegneria del software che parta dagli obiettivi di business e dall’organizzazione
di una data azienda e arrivi ad identificare quali parti poter delegare a
servizi esterni; - l’abilità di localizare i servizi più appropriati. Infatti, mentre le
tecnologie e gli standard, come ad esempio iWeb Service, sono importanti, è stato
ampiamente riconosciuto che non sono sufficenti da sole. Invece è di estrema
importanza un approccio sistematico e completo, che prenda in considerazione
i requisiti di business e segua le pratiche raccomandate. Per questo motivo, anche
se oggigiorno ci sono molte metodologie orientate ai servizi, l’Ingegneria del
Software orientata ai Servizi (SOSE) è ancora un campo aperto.
In questa tesi presentiamo la definizione di una nuova metodologia SOSE.
Innanzitutto usiamo le fasi iniziali di Tropos dato che è una metodologia orientata
agli agenti che porta particolare attenzione alle esigenze degli stakeholder e
all’analisi dei requisiti. Inoltre Tropos è stato già modificato in passato al fine di
supportare la progettazione dei Web Service. Non modifichiamo le prime tre fasi
(Early Requirements, Late Requirements e Architectural Design) e ci concentriamo
sulle fasi finali (Detailed Design e Implementation). Nella fase di Detailed
Design proponiamo un mapping fra concetti i* ed elementi BPMN 2.0 per avere
una traduzione automatica del diagramma i* derivato dalle fasi precedenti in un
linguaggio di workflow. In più forniamo delle tecniche e dei metodi formali per
selezionare codice e servizi esistenti in modo da riutilizzarli all’interno del software
che si sta progettando. Infine, nella fase Implementation proponiamo un
mapping BPMN - Alan (un linguaggio di programmazione orientato agli agenti
e agli oggetti) in modo da produrre automaticamente un’applicazione eseguibile.
Presentiamo inoltre un caso di studio dall’ambito e-commerce e lo usiamo per
mostrare come applicare passo passo la nostra metodologia
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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