1,721,002 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
SATIrE within ALL-TIMES: Improving Timing Technology with Source Code Analysis
No full textWe present the SATIrE source-to-source analysis framework within
the context of ALL-TIMES, a European research and development project aimed at improving and integrating existing tools in the area of timing analysis. Within the project, SATIrE contributes by performing source-level static analysis on C programs and exporting its results for other tools to use.
This work gives an overview of SATIrE and how its analyses may improve
timing analysis results obtained by other tools. We discuss SATIrE's
efficient and powerful context-sensitive unification-based points-to
analysis and its value interval analysis. We explain how SATIrE's
integration with other analysis tools handles issues such as combination of source-level with binary-level analysis and communication of views of function call contexts between tools
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Automatic Calculation of Coverage Profiles for Coverage-based Testing
No full textCode-coverage-based testing is a widely-used testing strategy with the
aim of providing a meaningful decision criterion for the adequacy of a test suite.
Code-coverage-based testing is also used for the development of safety-critical
applications, as the modified condition/decision coverage (MCDC) is proposed
by the DO178b document.
One critical issue of code-coverage testing is that they are typically applied to
source code while the generated machine code may result in a different code
structure due to code optimizations performed by an compiler. In this work we describe
the automatic calculation of coverage profiles describing which structural
code-coverage criteria are preserved by which code optimization. These coverage
profiles allow to easily extend compilers with the feature of preserving any given
code-coverage criteria by enabling only those code optimizations that preserve it
On Undecidability Results of Real Programming Languages
No full textOften, it is argued that some problems in data-flow analysis
such as e.g. worst case execution time analysis are undecidable (because
the halting problem is) and therefore only a conservative approximation
of the desired information is possible. In this paper, we show that the
semantics for some important real programming languages - in particular
those used for programming embedded devices - can be modeled as
finite state systems or pushdown machines. This implies that the halting
problem becomes decidable and therefore invalidates popular arguments
for using conservative analysis
- …
