1,721,195 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
Papua New Guinea food price bulletin: May 2021
No full textDuring the first quarter of 2021, the International Food Policy Research Institute (IFPRI) in collaboration with the Fresh Produce Development Agency (FPDA) and the National Research Institute (NRI) collaborated to update the tools used to collect important crop price information in food markets across the country. In addition, the team designed and piloted a new market vendor survey that will inform function and performance of fresh food markets, as well as identify challenges and opportunities for fresh food supply and logistics supply chain processes. Results of the first market vendor survey will be published in the 2nd quarter bulletin in July, 2021.Non-PRIFPRI1; 2 Promoting Healthy Diets and Nutrition for all; 3 Building Inclusive and Efficient Markets, Trade Systems, and Food Industry; 4 Transforming Agricultural and Rural Economies; 5 Strengthening Institutions and Governance; Capacity Strengthening; Fresh Food Price Analysis in Papua New GuineaDSG
Papua New Guinea food price bulletin: December 2020
No full textPrices of major food staples in Kokopo, Lae and Port Moresby have remained broadly stable over 2019 and 2020. The exceptions are prices of sweet potatoes and cooking bananas in Port Moresby, which declined between mid-2019 and the third quarter of 2020.
Per kilogram prices of vitamin-dense foods such as broccoli, carrot and karakap are typically higher than prices of starchy staples. Prices of both carrots and broccoli in Lae rose in mid-2020, but have declined in the last quarter of 2020 and October prices were close to their price levels in late 2019.
More consistent and timely price data collection and database management is necessary for informative food market analysis. Price data reported in this bulletin by crop and market is limited to 10 observations (at most) out of a possible of 24 fortnights in 2019. The rate of price data reporting has been lower in 2020, in part due to Covid-19 related disruptions.Non-PRIFPRI1; 1 Fostering Climate-Resilient and Sustainable Food Supply; 3 Building Inclusive and Efficient Markets, Trade Systems, and Food Industry; 5 Strengthening Institutions and Governance; Capacity Strengthening; Fresh Food Price Analysis in Papua New GuineaDSG
Papua New Guinea food price bulletin: October 2021
No full textSweet potato and cassava prices in Port Moresby gradually increased in quarter 3, however staple prices in other markets (Lae, Mt. Hagen, Goroka, Kokopo) across the country remained relatively stable . Vitamin-rich food (such as carrots, broccoli, and pawpaw) prices remained relatively stable in quarter 3. Select vegetable and fruit prices increased in Port Moresby.Non-PRIFPRI1; 2 Promoting Healthy Diets and Nutrition for all; 3 Building Inclusive and Efficient Markets, Trade Systems, and Food Industry; 4 Transforming Agricultural and Rural Economies; 5 Strengthening Institutions and Governance; Capacity Strengthening; Fresh Food Price Analysis in Papua New GuineaDSG
Papua New Guinea food price bulletin: August 2021
No full textDuring April through June 2021, market price data were collected routinely by the Fresh Produce Development Agency (FPDA), providing an important baseline for future market price analysis. In addition, the team fully implemented the new tablet price data collection tools which were built to improve data collection accuracy. The new price data questionnaire has decreased the list of diverse crops for price collection to focus on greater data quality collection, while maintaining important staple crops and a selection of fruit and vegetable crops. An accompanying trader survey that asks questions about production and sales volumes, transaction costs, and market processes was piloted in early April and will be fully implemented in Quarter 3 of 2021.Non-PRIFPRI1; 2 Promoting Healthy Diets and Nutrition for all; 3 Building Inclusive and Efficient Markets, Trade Systems, and Food Industry; 4 Transforming Agricultural and Rural Economies; 5 Strengthening Institutions and Governance; Capacity Strengthening; Fresh Food Price Analysis in Papua New GuineaDSG
- …
