1,720,989 research outputs found
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
Analisis Bioekonomi Sumber Daya Ikan Layang Deles (Dekapterus Macrosoma) dalam Penunjang Perikanan Berkelanjutan di majene, Sulawesi Selatan
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Kabupaten Majene merupakan salah satu penghasil ikan layang yang dominan di Sulawesi Selatan dengan menggunakan alat payang. Payang sebagai alat tangkap tradisional mampu bertahan sampai saat ini. Hasil-hasil penelitian terdahulu sudah mengindikasikan degradasi populasi ikan layang di daerah ini. Penelitian ini bertujuan mengevaluasi potensi sumberdaya ikan layang dan keberlanjutannya. Pendekatan survei digunakan dalam pengumpulan data primer dengan jumlah sampel 10 % dari populasi. Data runtun waktu produksi dan trip penangkapan selama 23 tahun digunakan data statistik perikanan. Potensi sumberdaya ikan layang optimum sebesar 3.060.100 kg dengan upaya penangkapan 44.947 trip. Potensi maksimum lestari sebesar 3.063.911 kg dengan upaya penangkapan 46.591trip. Perbaikan teknologi dan efisiensi akan menunjang perikanan berkelanjutan sepanjang mematuhi kriteria aspek biologi dan teknologi
BIOECONOMIC ANALYSIS ON SCAD FISH (Decapterus sp) RESOURCES IN SUPPORTING SUSTAINABLE FISHERIES IN MAKASSAR STRAIT1
Full text linkMakassar City is one of dominant scad fish producers in South Sulawesi by making use of purse seine. The purse seine is an advanced catching tool which is mostly able to survive in amid of decreasing quantity of small pelagic fish resources. Previous results of researches have indicated the degradation of scad fish population in this region. This research is aimed at evaluating potentials and sustainability of scad fish resources. Approach of survey employed in primary data collection is with sample number of 10 % of the population. Fishery Statistic Data of 23 years are used for sequential data of production time and catching trip. Optimum potentials of scad fish are 530,654.6 kg from catch effort of 8,956.667 trips. Maximum long-lasting potentials are 965,457.8 kg with catch effort of 27,231.23 trips. Improved and efficient technology will support the sustainable fisheries as long as the criteria of biological and technological aspects are fulfilled
ANALISIS BIOEKONOMI SUMBERDAYA IKAN LAYANG DELES (Decapterus macrosoma) DALAM MENUNJANG PERIKANAN BERKELANJUTAN DI PERAIRAN MAJENE, SULAWESI SELATAN1
Full text linkKabupaten Majene merupakan salah satu penghasil ikan layang yang dominan di Sulawesi Selatan dengan menggunakan alat payang. Payang sebagai alat tangkap tradisional mampu bertahan sampai saat ini. Hasil-hasil penelitian terdahulu sudah mengindikasikan degradasi populasi ikan layang di daerah ini. Penelitian ini bertujuan mengevaluasi potensi sumberdaya ikan layang dan keberlanjutannya. Pendekatan survei digunakan dalam pengumpulan data primer dengan jumlah sampel 10 % dari populasi. Data runtun waktu produksi dan trip penangkapan selama 23 tahun digunakan data statistik perikanan. Potensi sumberdaya ikan layang optimum sebesar 3.060.100 kg dengan upaya penangkapan 44.947 trip. Potensi maksimum lestari sebesar 3.063.911 kg dengan upaya penangkapan 46.591trip. Perbaikan teknologi dan efisiensi akan menunjang perikanan berkelanjutan sepanjang mematuhi kriteria aspek biologi dan teknologi
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