1,721,006 research outputs found
Discussion on "Stabilization for Continuum Models of Large Space Structures in Large Attitude Maneuvers" by A. De Santis and S. Di Gennaro
No full text
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
An architecture for high performance control, using Digital Signal Processor chips
No full textIncreasingly demanding industrial applications
require fast and cheap computing tools
for real-time control. For example, high performance
industrial robotics would benefit
from fast and cheap computing, but fast structures
are generally expensive and dedicated to
particular tasks [ 1,2,3]. Another example
which requires fast computing is the control
of electrical transients of ac motors, where
complex numerical computations must be carried
out within times like 1 ms [4]. A recent
paper described implementation of a self-tuning
controller which uses a digital signal
processing chip for rapid calculations [5].
For many control applications there is a
natural hierarchical structure so that algorithms
devoted to simple tasks are placed at
the lowest level (for example, controlling a
robot axis or determining the switching time
of a static converter), whereas complex tasks
are at the high levels, forming a pyramidal
control structure which reflects the multilevel
structure described by Mesarovic [6].I n such
a structure, tasks are usually repetitive and
involve rapid manipulation of data, directly
derived from the measurements of sensors,
while high-level tasks are done over larger
time intervals with more complex algorithms.
This paper describes a computing structure
taking into account the hierarchical considerations
above. The architecture consists of a
high level general purpose computer (HOST)
and up to eight digital signal processors (DSPs) which can be interfaced with the controlled
plant(s).
The high-level computer is either a work
station or an advanced personal computer
with sufficient memory space (RAM and
mass memory), equipped with peripherals for
implementation of user-friendly interface and
with the ability to communicate with other
computers, perhaps in a local network. The
synchronization and the real-time communications
between the HOST and a DSP are
implemented by the two memory bank alternatively
switched between the HOST and the
DSP. A complete transparency and a minimum
overhead result for the tasks running on
the DSP
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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