1,721,042 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Implementation and benchmarking of processor architectures for application-specific instruction set processors for implantable medical devices
No full textAn application-specific instruction set processor (ASIP) can provide for higher power and computationalefficiency compared to general-purpose processors. These attributes are essential for implantable medicaldevices which often run computationally intensive tasks on a strict power budget. This thesis compilesa collection of benchmarks by porting the existing benchmark suites ImpBench and CoreMark, and byimplementing a novel benchmark for artificial neural networks. Four architectures are selected in thecomparison; RISC, DSP, VLIW, and TTA. Implementations of these architectures are produced by theASIP Designer and OpenASIP toolsets. The benchmarks are simulated on these implementations andthe power consumption is measured on an FPGA. The thesis concludes that the implementations of theDSP and VLIW architectures do not deliver enough performance for their heavier use of resources, andrecommends a follow-up research by extending the TTA PeLoTTA and RISC-V Tzscale processors withapplication-specific instructions and running simulations for ASIC power and area numbers
Variations on the Author
No full text“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
No full textWe 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
No full textWe 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
Improving the reliability of pressure ulcer prevention by sensing human bio-signals: Analysis of using piezoelectric sensors to sense respiration and heart rate
No full textPressure ulcers, also known as bedsores, are wounds that form when a person sits or lays in the sameposture for an extended period of time. Continued pressure being applied to the same spot causesthe skin to decay, possibly continuing into underlaying tissue if the wounds are not treated. A commonand proven practice to prevent pressure ulcers from forming is to regularly change the posture of thepatient, so that there is not too much pressure on any one part of the skin.Momo Medical is creating a sensor system to assist in preventing pressure ulcers. They alreadyhave a prototype using force-sensing resistor (FSR) and piezoelectric sensors to measure changes inposture of the patient. The prototype is able to detect if a patient has moved enough, whether on theirown or by the nurses, to prevent pressure ulcers. The prototype works, but they need their system tobe more reliable.The research in this thesis focuses on improving the piezoelectric sensors. Momo Medical usesthe piezoelectric sensors to measure human bio-signals, mainly respiration and heart rate, through themattress. Two different printed circuit boards (PCBs) were designed as test set-ups to be able to easilymodify the amplifier to measure the piezoelectric sensors separately. Using these test set-ups twocommon piezoelectric sensors were compared, namely lead zirconate titanate (PZT) and polyvinylidenedifluoride (PVDF) sensors. From this comparison it was concluded that the PVDF sensors consistentlyhave a better signal-to-noise ratio (SNR), but that both the PZT and PVDF sensors were able to measurehuman bio-signals effectively. The PVDF sensors did showed even more promising results whenusing them in a different mechanical configuration.In the test set-up the amplifier was also changed to improve the read-out of the sensors. Multipleiterations on the amplifier design were tested. In the final design a non-inverting amplifier was chosen todecouple the amplification from the input impedance of the amplifier and a input impedance of 100MΩwas chosen. Because of the high input impedance in the final design the signal was dampened lessand less amplification was needed, thus reducing noise.Electrical Engineerin
- …
