1,722,949 research outputs found
MASTAQ: A middleware architecture for sensor applications with statistical quality constraints
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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
2016 IEEE International Conference on Smart Computing, SMARTCOMP 2016
No full textWe are very pleased to present the proceedings of the Second IEEE International Conference on Smart Computing
(SMARTCOMP 2016), held in St. Louis, Missouri, USA, on May 18-20, 2016.
Smart computing is emerging as an important multidisciplinary area, which can be broadly classified into two major
topics: how to design and build smart computing systems, and how to use computing technology for resource
sustainability to improve the human experience. Applications of smart computing span different business areas
including, but not limited to, transportation, energy, environmental protection, resource management, healthcare,
security, and social media. The advancement of cloud computing, mobile/pervasive computing, cyber-physical
systems, sensor networking and social computing are bringing smart computing to a newer dimension and improving
our ways of living. With the theme “Smart Living through Computing”, IEEE SMARTCOMP 2016 is intended to be a
forum for the presentation and exchange of cutting-edge ideas on smart computing.
In response to the Call for Papers, we received about 50 original submissions from 12 countries located in four different
continents. A thorough review process was conducted by the members of the Technical Program Committee (TPC)
which allowed us to collect at least three independent reviews per submission. From the set of submitted manuscripts
we selected 17 full papers -- plus 6 concise contributions -- to be presented in 10 technical sessions including a Best
Paper session. The final program is enriched by two keynote speeches and two special sessions devoted to the
presentation of relevant research activities in the field of smart systems and smart cities, respectively. It also includes a
poster session for the presentation of Work in Progress activities and Demonstrations, and a PhD Forum. The technical
program is, overall, high quality and diverse as it addresses different aspects in the broad area of smart computing.
The final result would not have been possible without the invaluable contributions of a number of colleagues. We would
like to acknowledge the great work carried out by: the publicity co-chairs Peng Cheng, Tao Gu, Nirmalya Roy, and
Marco Tiloca; the publication chair Mario Di Francesco; the registration chair Maciej Zawodniok; the local arrangements
co-chairs Prasenjit Shil and Yoelit Heibert; and the web manager Dawn Davis. Special thanks to the panel chair Klara
Nahrstedt, the keynote chair Chenyang Lu, the WIP/Demo/PhD Forum co-chairs Hassan Ghasemzadeh and Sejun
Song, workshops co-chairs Jamie Payton and Zhiwen Yu, and the Industry Liaison Chair Prakash Shahi. We wish to
express our gratitude also to people involved in the review process, i.e., TPC members and external reviewers, for their
competence and dedication. Finally, our most sincere thanks to all the authors who, ultimately, made the conference a
successful and stimulating event. Enjoy the conference at the beautiful city of St. Louis
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
Ultra-high-speed hybrid ceramic triboelectric bearing with real-time dynamic instability monitoring
Full text linkThe reliability and stability of bearing operation are crucial factors limiting the performance of high-speed rotating machinery. In this study, an ultra-high-speed hybrid ceramic rolling element triboelectric bearing (US-HCTEB) was developed to provide real-time dynamic behavior and stability monitoring. Herein, we adopted a floating rolling–sliding combination freestanding mode that ensures bearing structural integrity. Furthermore, a crown-shaped cage was employed with an opening, allowing the ceramic rolling element to be used as a dielectric material that was coupled with a sector-shaped interdigital electrode set on the bearing end cover to form a floating freestanding triboelectric nanogenerator (TENG). The rolling element self-rotated and revolved owing to the traction of the raceways, sweeping the electrodes to generate an alternating current. Additionally, the superiority and reliability of the US-HCTEB were demonstrated using a 30 million cycle durability test and an ultra-high rotating speed test at 16000 rpm, which far exceeds the capabilities of previously reported triboelectric bearings. The US-HCTEB output was then evaluated considering variable working conditions, structural optimization, and the surrounding environment. Dry contact lubrication and low humidity were found to be beneficial for the output performance. The spectra of the output current and the statistics describing the rolling element instantaneous speed suggest that the high-speed heavy radial load of the US-HCTEB could reduce overall skidding at the cost of increased instability. Subsequently, an extremely fast acceleration and deceleration test program was conducted on the US-HCTEB to evaluate its performance under the complex and nonstationary conditions in which high-speed bearings operate. The results revealed that the US-HCTEB not only achieved real-time and high-resolution dynamic behavior identification but also exhibited high reliability as it functioned appropriately until bearing failure. Thus, the proposed high-precision US-HCTEB can serve as an essential basis for the development of smart rolling bearings
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