1,720,981 research outputs found
Searching with iterated maps
No full textIn many problems that require extensive searching, the solution can be described as satisfying two competing constraints, where satisfying each independently does not pose a challenge. As an alternative to tree-based and stochastic searching, for these problems we propose using an iterated map built from the projections to the two constraint sets. Algorithms of this kind have been the method of choice in a large variety of signal-processing applications; we show here that the scope of these algorithms is surprisingly broad, with applications as diverse as protein folding and Sudoku
On the question of stability and disorder in icosahedral aluminum - transition metal alloys
No full textPT: J; CR: BANCEL PA, 1985, PHYS REV LETT, V54, P2422 BANCEL PA, 1986, PHYS REV B, V33, P7917 CHEN CH, 1986, PHYS REV B, V33, P2814 DUBOST B, 1986, NATURE, V324, P48 DUNLAP RA, 1985, PHYS STATUS SOLIDI A, V92, K11 DUNLAP RA, 1986, J PHYS F MET PHYS, V16, P11 EIBSCHUTZ M, 1987, PHYS REV LETT, V59, P2443 EIBSCHUTZ M, 1989, IN PRESS PHYS REV LE ELSER V, 1985, PHYS REV B, V32, P4892 ELSER V, 1985, PHYS REV LETT, V55, P2883 LAWTHER DW, 1989, IN PRESS J MATER SCI MACKAY AL, 1962, ACTA CRYSTALLOGR, V15, P916 OHASHI W, 1987, NATURE, V330, P555 REDFIELD AC, 1987, PHYS REV LETT, V58, P2322 SHECHTMAN D, 1984, PHYS REV LETT, V53, P1951 TSAI AP, 1987, JPN J APPL PHYS, V26, P1505 YAMANE H, 1987, MATER SCI FORUM, V22, P539; NR: 17; TC: 18; J9: CAN J PHYS; PG: 5; GA: AK758Source type: Electronic(1
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
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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
Transition metal site distributions in binary aluminum-transition metal quasicrystals: Al-V and Al-Cr
No full textPT: J; CR: BANCEL PA, 1985, PHYS REV LETT, V54, P2422 BIGOT J, 1988, MATER SCI ENG, V99, P453 CARLSON ON, 1955, T AM SOC MET, V47, P520 DINI K, 1986, J MATER SCI, V21, P1037 DUNLAP RA, 1985, PHYS STATUS SOLIDI A, V92, K11 DUNLAP RA, 1986, J PHYS F MET PHYS, V16, P11 DUNLAP RA, 1988, J PHYS F MET PHYS, V18, P1329 DUNLAP RA, 1988, PHYS REV B, V38, P3649 DUNLAP RA, 1988, UNPUB EDAGAWA K, 1987, J PHYS SOC JPN, V56, P2629 EIBSCHUTZ M, 1986, PHYS REV LETT, V56, P169 EIBSCHUTZ M, 1987, PHYS REV LETT, V59, P2443 ELSER V, 1985, PHYS REV B, V32, P4892 ELSER V, 1985, PHYS REV LETT, V55, P2883 HAUSER JJ, 1986, PHYS REV B, V33, P3577 INOUE A, 1986, METALL TRANS A, V17, P1657 INOUE A, 1987, J MATER SCI, V22, P1758 KIMURA K, 1985, J PHYS SOC JPN, V54, P3217 LAWTHER DW, 1989, CAN J PHYS, V67, P463 LIEBERMANN HH, 1983, BUTTERWORTHS MONOGRA, P26 MACKAY AL, 1962, ACTA CRYSTALLOGR, V15, P916 MCHENRY ME, 1989, PHYS REV B, V39, P3611 NISHITANI SR, 1988, MATER SCI ENG, V99, P443 SHECHTMAN D, 1984, PHYS REV LETT, V53, P1951 SKINNER DJ, 1988, MATER SCI ENG, V99, P407 SWARTZENDRUBER LJ, 1985, PHYS REV B, V32, P1383 WARREN WW, 1986, PHYS REV B, V34, P4902 ZHANG H, 1988, PHYS REV B, V37, P6220; NR: 28; TC: 4; J9: MATER SCI ENG A-STRUCT MATER; PG: 6; GA: CP677Source type: Electronic(1
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
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