1,720,967 research outputs found
Using ASMs and Spec# to formal modeling and analysis publish/subscribe architectures
No full textThe Publish/Subscribe architecture has been proposed as a suitable architecture to develop highly dynamic systems. Although the structure of this architecture is easy to understand, unfortunately modeling and validating the whole system is complicated. In this paper, we present a formal approach based on Abstract State Machines (ASM) to model systems using this architecture. Then, to validate the designed models we use model-based testing. To do so, we propose a transformation from ASMs to Spec# language. The key feature of the proposed approach are new parametric dispatcher and the use of model-based testing for validation. © 2010, INSInet Publication
A comparative study and classification on web service security testing approaches
No full textWeb Services testing is essential to achieve the goal of scalable, robust and successful Web Services especially in business environment where maybe exist hundreds of Web Services working together. This Relatively new way of software development brings out new issues for Web Service testing to ensure the quality of service that are published, bound, invoked and integrated at runtime. Testing services poses new challenges to traditional testing approaches. Dynamic scenario of Service Oriented Architecture (SOA) is also altering the traditional view of security and causes new risks. The great importance of this field has attracted the attention of researchers. In this paper, in addition of presenting a survey and classification of the main existing web service testing approaches, web service security testing researches and their issues are investigated.<br/
A comparative study and classification on web service security testing approaches
No full textWeb Services testing is essential to achieve the goal of scalable, robust and successful Web Services especially in business environment where maybe exist hundreds of Web Services working together. This Relatively new way of software development brings out new issues for Web Service testing to ensure the quality of service that are published, bound, invoked and integrated at runtime. Testing services poses new challenges to traditional testing approaches. Dynamic scenario of Service Oriented Architecture (SOA) is also altering the traditional view of security and causes new risks. The great importance of this field has attracted the attention of researchers. In this paper, in addition of presenting a survey and classification of the main existing web service testing approaches, web service security testing researches and their issues are investigated.<br/
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
- …
