1,723,581 research outputs found
Ceremony - Edwin Johnson, Michael Jimenez, Jawayria Kalimullah
No full textGraduates Edwin Johnson, Michael Jimenez, and Jawayria Kalimullah receive their hoods.https://scholarship.kentlaw.iit.edu/commencement_2013/1124/thumbnail.jp
Marquette basketball players Mandy Johnson, Michael Wilson, Glenn Rivers, and Don Smolinski, 1981-1982
No full textMarquette basketball players Mandy Johnson, Michael Wilson, Glenn Rivers, and Don Smolinski pose for a photo on the basketball court, 1981-1982
Kepler FFI Transient and Variable Search
No full textPositions, magnitudes and changes in magnitude between objects found within difference image subtracted Kepler Full Frame Images.
This dataset supports the thesis entitled "Improving the Quality of Astronomical Survey Data", University of Southampton. </span
Improving the quality of astronomical survey data
No full textAstronomical survey telescopes are becoming increasing capable at generating large datasets. The quantities of data being produced necessitate the automation of the data processing which is commonly accomplished via astronomical workflows. The large scale of the data also means that small improvements in the quality of the data processing can have large implications for the value of the science gained. However, deciding on which workflow configuration is best is usually a qualitative process, achieved through trial and improvement which lacks a quantitative measure of the quality of the results produced by each workflow version. Consequently, the best workflow cannot be reliably chosen. Thorough analysis is typically applied to find specific outputs from astronomical workflows, such as the magnitude of an object. However, this targeted analysis focuses on specific components and does not utilise the wider workflow space or the provenance of the workflows. This thesis therefore outlines an approach to be applied to workflows to assess over different workflow versions and measure the quality of data that they produce. To test the approach, it was applied to three separate use cases. The first application used the approach to predict the completeness of period recovery of transient and variable astronomical sources with several candidate observing strategies from upcoming front line astronomical surveys. It was found that observing strategies which did not reduce the observations within the Galactic Plane increase the completeness by a factor of ∼3. The second was an investigation into the use of provenance to improve the timeliness of a differential photometry workflow. It was found that this method offered improvements of at least 96% in computational efficiency when analysing the outlined use cases. The third application was to improve the accuracy and completeness of a workflow designed to search for transients within a set of archival calibration data from an astronomical survey telescope. Workflow configurations were generated using the manual method in addition to via the approach. The best performing workflow found through the approach outperformed the workflow generated through the manual method and consequently found an additional ∼2,500 transient events. However, full evaluation of the approach could be a computationally expensive process, therefore the hill climbing algorithm was also investigated as a means to quickly find a verifiably good workflow configuration. The quality of the results produced by the workflow generated through this method were found to be within 0.2% of those produced by the highest quality workflow found
The mechanisms and kinetics of alkaline hydrolysis of methyl esters of substituted cyclohexane mono- and di-carboxylic acids
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
Windows, Mirrors, and the Unrepresentable Earth
Full text link"Windows, Mirrors, and the Unrepresentable Earth" is Michael Johnson's written thesis submitted to the faculty of the Department of Art in partial fulfillment of the requirements of the Master of Fine Arts Degree in Art 2017.Johnson, Michael T. (2017). Windows, Mirrors, and the Unrepresentable Earth. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/187994
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
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